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Relevant bibliographies by topics / Carbonyl sulphide

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Academic literature on the topic 'Carbonyl sulphide'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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Journal articles on the topic "Carbonyl sulphide"

1

Kluczewski, S. M., K. A. Brown, and J. N. B. Bel. "Deposition of carbonyl sulphide to soils." Atmospheric Environment (1967) 19, no. 8 (January 1985): 1295–99. http://dx.doi.org/10.1016/0004-6981(85)90260-4.

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2

Palumbo, M. E., A. G. G. M. Tielens, and A. T. Tokunaga. "Solid Carbonyl Sulphide (OCS) in W33A." Astrophysical Journal 449 (August 1995): 674. http://dx.doi.org/10.1086/176088.

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3

Peter Williams, B., Nicola C. Young, John West, Colin Rhodes, and Graham J. Hutchings. "Carbonyl sulphide hydrolysis using alumina catalysts." Catalysis Today 49, no. 1-3 (February 1999): 99–104. http://dx.doi.org/10.1016/s0920-5861(98)00413-1.

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JACKSON, S. "Carbonyl sulphide adsorption on supported rhodium." Journal of Catalysis 121, no. 2 (February 1990): 312–17. http://dx.doi.org/10.1016/0021-9517(90)90239-g.

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5

Heesink, A. B. M., and W. P. M. Van Swaaij. "The sulphidation of calcined limestone with hydrogen sulphide and carbonyl sulphide." Chemical Engineering Science 50, no. 18 (September 1995): 2983–96. http://dx.doi.org/10.1016/0009-2509(95)91133-j.

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Barnes, I., K. H. Becker, and I. Patroescu. "FTIR product study of the OH initiated oxidation of dimethyl sulphide: Observation of carbonyl sulphide and dimethyl sulphoxide." Atmospheric Environment 30, no. 10-11 (May 1996): 1805–14. http://dx.doi.org/10.1016/1352-2310(95)00389-4.

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7

Deakin, A. A., and S. H. Walmsley. "Potential energy functions and the carbonyl sulphide dimer." Journal of Molecular Structure 247 (July 1991): 89–92. http://dx.doi.org/10.1016/0022-2860(91)87065-p.

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8

Morgan, Ross A., Andrew J. Orr‐Ewing, Daniela Ascenzi, Michael N. R. Ashfold, Wybren Jan Buma, Connie R. Scheper, and Cornelis A. de Lange. "Resonance enhanced multiphoton ionization spectroscopy of carbonyl sulphide." Journal of Chemical Physics 105, no. 6 (August 8, 1996): 2141–52. http://dx.doi.org/10.1063/1.472088.

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9

Kluczewski, S. M., K. A. Brown, and J. N. B. Bell. "Deposition of [35S]-Carbonyl Sulphide to Vegetable Crops." Radiation Protection Dosimetry 11, no. 3 (May 1, 1985): 173–77. http://dx.doi.org/10.1093/oxfordjournals.rpd.a079463.

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10

Oakes, B. W., and M. Hale. "Dispersion patterns of carbonyl sulphide above mineral deposits." Journal of Geochemical Exploration 28, no. 1-3 (June 1987): 235–49. http://dx.doi.org/10.1016/0375-6742(87)90050-1.

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Dissertations / Theses on the topic "Carbonyl sulphide"

1

West, John. "The low temperature hydrolysis of carbonyl sulphide." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366499.

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Dawodu, Olukayode Fatai. "Degradation of diethanolamine solutions by carbonyl sulphide and carbon disulphide." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30797.

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The common industrial practice of using aqueous solutions of diethanolamine (DEA) for the removal of impurities such as carbon dioxide (CO₂), hydrogen sulphide (H₂S), carbonyl sulphide (COS) and carbon disulphide (CS₂) from natural, refinery and manufactured gases often entails irreversible reactions between the solvent and the impurities. This phenomenon is referred to as amine degradation and it not only constitutes a loss of the amine but may contribute to operational problems such as foaming, corrosion and fouling. Degradation of DEA by COS and CS₂ was studied by using a 600 mL stainless steel reactor under the following conditions: DEA concentration 10 - 40 wt%; temperature 120 - 195 °C; COS partial pressure 345 - 1172 kPa; CS₂ volume 2.5 - 10.5 mL (CS₂/DEA mole ratio of 0.055 - 0.233). An analytical procedure consisting of gas chromatography (GC) and gas chromatography/mass spectroscopy (GC/MS) was used to identify over 20 compounds in the partially degraded DEA solutions. The major degradation products are monoethanolamine (MEA), bis hydroxyethyl ethylenediamine (BHEED), bis hydroxyethyl piperazine (BHEP), hydroxyethyl oxazolidone (HEOD), hydroxyethyl imidazolidone (HEI), tris hydroxyethyl ethylenediamine (THEED) and bis hydroxyethyl imidazolidone (BHEI); as well as a dithiocarbamate salt (in the case of the CS₂-DEA systems). In addition, both COS and CS₂ induced degradation formed solid products which were characterized on the basis of solubility, melting point, elemental composition, solid probe GC/MS and infrared analysis. The number of degradation compounds in the COS-DEA and CS₂-DEA systems is large when compared with the three major degradation compounds found in CO₂-DEA systems; this demonstrates that the former systems are distinct and more complicated than the latter system. When COS or CS₂ was contacted with aqueous DEA solution, hydrolysis occurred and H₂S, CO₂, COS and, possibly, CS₂ together with their related ionic species were present in the system. Solubility and hydrolysis experiments were therefore conducted to establish the equilibrium composition of the COS-DEA system prior to the commencement of degradation. A modified Kent-Eisenberg (K/E) model which was developed to correlate the experimental data, showed good agreement between the experimental results and model predictions. Since the K/E and previous models were limited to amine-CO₂ and/or H₂S systems, the present modified K/E model which incorporates COS, is a significant improvement. The rate of degradation of DEA was found to increase with temperature, DEA concentration, COS partial pressure and CS₂ volume. On the basis of the experiments conducted to evaluate the contributions of the various compounds in the partially degraded solutions, reaction schemes were developed for the formation of 18 degradation compounds in the COS-DEA and CS₂-DEA systems. Despite the complexity of the reactions, the overall degradation of DEA was well represented by a first order reaction for the present experimental conditions. A mathematical model based on the major reaction schemes was developed to estimate the concentrations of DEA and the major degradation compounds in the COS-DEA system. Contrary to literature information, experiments conducted with gas mixtures of CO₂ and showed that H₂S enhanced the rate of DEA degradation. A direct result of the combined effects of H₂S and CO₂ on alkanolamines was the production of the corresponding lower order alkanolamines from higher order ones. The resulting mixed amine solution increases the routes for degradation compared to single amine solutions. The study therefore provides an indication of what to expect in terms of degradation when mixtures of alkanolamines are used for gas sweetening.
Applied Science, Faculty of
Chemical and Biological Engineering, Department of
Graduate

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3

Hobe, Marc von. "The behaviour of carbonyl sulphide in the ocean : field and modelling studies." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323224.

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Ren, YongLin, and n/a. "Carbonyl sulphide as a fumigant for grain and timber : efficacy towards organisms and formation of residues." University of Canberra. Human & Biomedical Sciences, 1997. http://erl.canberra.edu.au./public/adt-AUC20061107.120137.

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This thesis presents an investigation of carbonyl sulphide as a new fumigant and related methodology studies. The first part involved the investigation of a new fumigant - carbonyl sulphide, which has the potential to replace methyl bromide. Its biological response or activity was investigated, e.g. toxicity to target organisms and phytotoxicity, environmental and worker safety considerations. In the second investigation, analytical methods were developed for the determination of fumigant movement through timber and fumigant residues in grains as well as a method of chemical fractionation to determine the fate of carbonyl sulphide. A comprehensive literature review of 161 references in these two areas is reported. Carbonyl sulphide was highly toxic to adults of three coleopteran species tested, namely Rhyzopertha dominica (F.), Tribolium confusum du Val, and Sitophilus oryzae (L.), the most sensitive species was R. dominica. For 6 hr exposure at 25�C, the L(CxT)95 value for R. dominica, S. oryzae and T. confusum were, respectively, 36.48, 99.82 and 113.0mg h L-1. Carbonyl sulphide inhibited 100% of mould in wet wheat and more than 90% of mould on dry wheat at lOOmg L-1. Both carbonyl sulphide and hydrogen cyanide were low in phytotoxicity without affecting germination of wheat, at levels needed to control insects. Unlike hydrogen cyanide, carbonyl sulphide can be used at minimum levels without decreasing plumule length of wheat. Chemical data on the sorption of carbonyl sulphide are compared with data from methyl bromide. The levels of carbonyl sulphide in the headspace of five commodities (wheat, barley, paddy, sorghum and peanut) and timbers (hardwood and softwood) decay more slowly than do levels of methyl bromide. Carbonyl sulphide was blown through a column of wheat as easily as was phosphine and more easily than was methyl bromide, and its front was blown out faster than phosphine and methyl bromide. Movement of two fumigants (methyl bromide and carbonyl sulphide) through, and sorption on, softwood and hardwood were studied. Each fumigant was sorbed less on softwood than on hardwood and penetrated softwood better than hardwood. Carbonyl sulphide penetrated timber better than did methyl bromide, and was less sorbed on timber. A rapid method of solvent extraction was developed to enable rapid estimation of the amount on intact fumigant sorbed in wood. This procedure enabled near quantitative recovery of methyl bromide as either intact fumigant or as bromide ion. Carbonyl sulphide residue in unfumigated wheat was found to be around 25- SOppb. Carbonyl sulphide left little residue on fumigated grains. Desorption of carbonyl sulphide from the wheat was extremely fast, 85% of it was released after one day aeration which was very much greater than that of methyl bromide and carbon disulphide. After 6 days aeration the incorporation of 14COS on mungbean, wheat, paddy, rice and safflower was lower than 7Oppb (calculated as COS equivalent). Food value or nutritional quality of foodstuffs is not harmed by carbonyl sulphide fumigation. This result was assessed by identifying any nonreversible change or combined residues in biochemical fractions of commodities including lipids, protein, amino acids, carbohydrate, etc., and no irreversible reaction between carbonyl sulphide and any constituent such as B vitamin, atocopherol, lysine, maltose and starch. Fumigants did not affect lipids, although each fumigant was applied to wheat at exaggerated concentrations, nor wheat germ oil and canola oil treated with extremely high concentration of fumigants. Factors which affect analysis of fumigants including stability of chemicals in extraction solvent and partitioning of fumigant between solvent and air, were examined. The partition ratio, defined as the fumigant concentration in extraction solvent to that in the headspace, varied with fumigant. Methods for multi-fumigant analysis were developed or modified and gave high recoveries and efficiency. The procedure of Daft of solvent extraction followed by partitioning was modified by being performed in sealed flasks. This raised the recovery of carbonyl sulphide, methyl bromide, phosphine and carbon disulphide. Recoveries were near quantitative at levels down to 6-16ppb (w/w) for tested fumigants. Thus the modified Daft method can be adapted to enable determination of the main fumigants used on staple foodstuffs. Microwave irradiation method give higher efficiency of removal of fumigants from grains. Limits of quantification were < 0.2ng g-1 (ppb w/w) for each tested fumigant. The detection limit of COS was calculated, as natural levels of the fumigant were detected in commodities. These are feasible, simple and rapid (< 2 min.) to be use to analyse fumigant residue in grains. Carbonyl sulphide has potential as a fumigant for grain and timber and may replace methyl bromide in some uses, subject to further investigation in commercial situations.

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5

Günther, Annika [Verfasser], and Thomas von [Akademischer Betreuer] Clarmann. "Stratospheric sulphur: MIPAS/Envisat measurements and chemical transport model simulations of carbonyl sulphide, sulphur dioxide, and sulphate aerosol / Annika Günther ; Betreuer: Dr. Thomas von Clarmann." Karlsruhe : KIT-Bibliothek, 2018. http://d-nb.info/1164081055/34.

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6

Allin, Samuel. "Trace gases in Antarctic and Greenland firn and ice : a record of carbonyl sulphide and the isotopologues of chlorofluorocarbons." Thesis, University of East Anglia, 2015. https://ueaeprints.uea.ac.uk/57214/.

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Through the industrial revolution of the last 250 years, trace gases have had a significant impact on the climate. Of particular relevance to this work are species which facilitate the destruction of stratospheric ozone. In this thesis, I focus on four of these species. Understanding the release, reaction and transport pathways of the man-made chlorofluorocarbons (CFCs) could help us to mitigate their destructive effect. Previous studies have found that both source and sink processes significantly alter the isotopic composition of trace gases (e.g. N2O and CFC-12). Measuring these changes can be used to better constrain the interaction of these gases with the atmosphere. Atmospheric histories of δ(37Cl) and δ(13C) in CFC-11, CFC-12 and CFC-113 are presented, covering the last 20 – 60 years. Air samples came from Greenland (NEEM) and Antarctic (Fletcher Promontory) polar firn, with additional samples taken from an archive of Southern Hemispheric background air (Cape Grim, Tasmania). This study extends the novel approach to measuring trace gas isotope ratios in small air volumes (200 – 600 ml), using a single-collector gas chromatography-mass spectrometry system. Carbonyl sulphide (COS) is the principal source of sulphur in the stratosphere, where it breaks down into sulphate aerosol which catalyses the destruction of ozone. Air was extracted from Greenland (NEEM) and Antarctic (DE08, DML (BAS) and DSS) ice core samples and analysed for COS and a range of other trace gas mole fractions. The COS measurements were affected by a previously unknown post-extraction growth effect, leading to higher than expected values. This study also presents new COS measurements in firn air from NEEM and the Southern Hemisphere (EDML, Antarctica). The observed increase and subsequent decrease largely reflects changes in anthropogenic emissions during the 20th century. These measurements also indicate that regional and site-specific effects have a significant influence on the recorded atmospheric history of COS.

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7

Attard, J. P. "Carbonyl clusters of the iron triad containing nitrosyl and sulphido ligands." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384301.

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8

Muungo, Lungwani Tyson Makoye. "The effect of Carbopol 934 rheological polymers on the dissolution rate of sulphamide crystals." Thesis, Robert Gordon University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296466.

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9

Wells, Thomas. "Determining the voltage range of a carbon-based supercapacitor." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-91805.

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The focus of this thesis has been to determine the usable voltage range of carbon-based supercapacitors (SC). Supercapacitors are a relatively new type of capacitors with a vast increase in capacitance compared to capacitors which utilize a dielectric as charge separator. A SC consists of two electrodes and an electrolyte separating the electrodes. The charges are stored by electrostatic forces in the interface between the electrode and the electrolyte, forming the so called electrochemical double-layer (EDL). With porous electrodes the effective surface area of the interfacial zone can be made very large, giving SCs a large storage capacity. The limiting factors of a SC is the decomposition potential of the electrolyte and the decomposition of the electrodes. For commercially manufactured SCs the electrolyte is usually an organic solvent, which has a decomposition potential of up to 2.7-2.8 V. Compared to aqueous electrolytes with a thermodynamic limit of 1.23 V. The drawback of using non-aqueous electrolytes is that they are not environmentally friendly, and they increase the production cost. It is claimed that the voltage range can be up to 1.9 V using aqueous electrolytes. Some researchers have focused on aqueous electrolytes for these reasons. In this thesis two different electrolytes were tested to determine if the voltage range could be extended. The experiments were conducted using a three electrode cell and performing cyclic voltammogram measurements (CV). The carbon electrodes were made of two different sources of grahite, battery graphite or exfoliated graphite, and nano fibrilated cellulose was added to increase the mechanical stability. The results show that the oxidation potential of the carbon electrode was the positive limit. A usable potential of about 1 V was shown. However, when cycling the electrodes to potentials below the decomposition limit, for hydrogen evolution, interesting effects were seen. A decrease in reaction kinetics, indicating a type of conditioning of the electrode was observed. An increase in charge storage capacitance was also observed when comparing the initial measurements with the final, probably corresponding to an increase in porosity.
KEPS projekt Sundsvall Mitt Universitet

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Čiutelytė, Rūta. "Biogas yield and quality improvement and purification with natural minerals." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20131004_191808-62516.

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Research goal and objective. To investigate the possibilities of the use of mineral raw materials of local origin for the purification of biogas produced from sewage sludge, by-products and waste and to assess the environmental benefits of the use of biogas in the transport sector. The properties of by-products and waste generated in Lithuania as well as the possibilities of their use in the production of biogas from sewage sludge have been assessed. The potential and properties of local mineral raw materials suitable for the purification of biogas have been assessed. The process of the removal of hydrogen sulphide and carbon dioxide from biogas using natural sorbents has been investigated. It was found that large dolomite resources available in Lithuania allow using this natural raw material for biogas purification because sorbent solutions and suspensions of dolomite powder effectively remove hydrogen sulphide and absorb carbon dioxide from biogas sufficiently quickly. A principal biogas purification technology was developed on the basis of the performed assessment of the process kinetic calculations. Engine perfomance tests were carried out using a mixture of biogas and mineral diesel fuel and exhaust gas emissions were assessed.
Darbo tikslas – ištirti gamtinių sorbentų (vietinės kilmės mineralinių žaliavų) panaudojimo biodujų, pagamintų iš nuotekų dumblo, šalutinių produktų ir atliekų, valymui galimybes bei įvertinti biodujų panaudojimo transporto sektoriuje aplinkosauginę naudą. Įvertintos Lietuvoje susidarančių šalutinių produktų ir atliekų savybės bei panaudojimo biodujų gamyboje iš nuotekų dumblo galimybės. Įvertintos vietinės kilmės mineralinių žaliavų, tinkančių biodujų valymui, potencialas ir savybės. Ištirtas biodujų valymo nuo sieros vandenilio ir anglies dioksido procesas, naudojant gamtinius sorbentus. Nustatyta, kad Lietuvoje eantys dideli dolomito ištekliai leidžia panaudoti šią natūralią žaliavą biodujų valymui, nes absorbciniai tirpalai iš dolomito miltelių efektyviai pašalina sieros vandenilį ir pakankamai gerai sugeria anglies dioksidą. Remiantis atliktu proceso kinetinių skaičiavimų įvertinimu buvo parengta principinė biodujų valymo technologija. Atlikti stendiniai variklio bandymai naudojant biodujų ir mineralinio dyzelino mišinį bei įvertintos deginių emisijos.

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Books on the topic "Carbonyl sulphide"

1

Pagani, M. M. F. Methods for treating carbonyl sulphide. Manchester: UMIST, 1995.

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Laffin, Stephen. The use of nickel sulphide in the reduction of chromite under carbon saturation. Sudbury, Ont: Laurentian University, School of Engineering, 1990.

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3

Räisänen, Jouni. Climate response to increasing CO₂ and anthropogenic sulphate aerosols: Comparison between two models. Helsinki: University of Helsinki, Dept. of Meteorology, 1998.

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4

Tielens, A. G. G. M., Tokunaga Alan Takashi 1949-, and United States. National Aeronautics and Space Administration., eds. Solid carbonyl sulphide (OCS) in W33A. [Washington, D.C: National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. SOLID CARBONYL SULPHIDE (OCS) IN W33A... NASA-TM-112120... NASA AMES RESEARCH CENTER... MARCH 31,1997. [S.l: s.n., 1997.

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A Working Party Report on Guidelines on Materials Requirements for Carbon and Low Alloy Steels for H2S-Containing Environments in Oil & Gas production (European Federation of Corrosion Publications). 2nd ed. Maney Publishing, 2002.

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Phimolmas, Varut. The effect of temperature and residence time on the distribution of carbon, sulfur, and nitrogen between gaseous and condensed phase products from low temperature pyrolysis of kraft black liquor. 1996.

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Book chapters on the topic "Carbonyl sulphide"

1

Winkelmann, J. "Diffusion of carbon dioxide (1); water (2); magnesium sulphate (3)." In Gases in Gases, Liquids and their Mixtures, 2285. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1773.

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Winkelmann, J. "Diffusion of carbon dioxide (1); water (2); sodium sulphate (3)." In Gases in Gases, Liquids and their Mixtures, 2288–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1775.

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Iversen, Trond, Alf Kirkevåg, and Øyvind Seland. "Hemispheric-Scale Modelling of Sulphate and Black Carbon and their Direct Radiative Effects." In Air Pollution Modeling and Its Application XII, 477–87. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-9128-0_49.

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Winkelmann, J. "Diffusion of carbon dioxide (1); water (2); sodium chloride (3); sodium sulphate (4)." In Gases in Gases, Liquids and their Mixtures, 2291. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1777.

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Winkelmann, J. "Diffusion of carbon dioxide (1); water (2); magnesium chloride (3); sodium sulphate (4)." In Gases in Gases, Liquids and their Mixtures, 2292. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1778.

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Winkelmann, J. "Diffusion of carbon dioxide (1); water (2); sodium nitrate (3); sodium sulphate (4)." In Gases in Gases, Liquids and their Mixtures, 2293. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1779.

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Magwaneng, Refilwe S., Kazutoshi Haga, Altansukh Batnasan, Atsushi Shibayama, Masato Kosugi, Ryo Kawarabuki, Kohei Mitsuhashi, and Masanobu Kawata. "Investigation for Removal of Organic Carbon from Carbonaceous Copper Sulphide Ore and Improving the Recovery of Copper Through Flotation." In The Minerals, Metals & Materials Series, 343–51. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72484-3_37.

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Welsh, David T., Peter Wellsbury, Sophie Bourguès, Rutger de Wit, and Rodney A. Herbert. "Relationship between porewater organic carbon content, sulphate reduction and nitrogen fixation (acetylene reduction) in the rhizosphere of Zostera noltii." In Coastal Lagoon Eutrophication and ANaerobic Processes (C.L.E.AN.), 175–83. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1744-6_14.

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Bülow, M., W. Lutz, and M. Suckow. "The mutual transformation of hydrogen sulphide and carbonyl sulphide and its role for gas desulphurization processes with zeolitic molecular sieve sorbents." In Studies in Surface Science and Catalysis, 301–45. Elsevier, 1999. http://dx.doi.org/10.1016/s0167-2991(99)80556-4.

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"Antidotes to Carbon Monoxide, Cyanide and Hydrogen Sulphide." In Antidotes, 222–43. CRC Press, 2001. http://dx.doi.org/10.1201/9780203485071.ch6.

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Conference papers on the topic "Carbonyl sulphide"

1

Neri, G., A. Bonavita, S. Ipsale, G. Micali, G. Rizzo, and N. Donato. "Carbonyl sulphide (COS) monitoring on MOS sensors for biomedical applications." In 2007 IEEE International Symposium on Industrial Electronics. IEEE, 2007. http://dx.doi.org/10.1109/isie.2007.4375049.

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Gburski, Z., H. Stassen, and A. Kachel. "Rotational contribution to Raman line shape of liquid carbonyl sulphide: MD simulation." In The 13th international conference on spectral line shapes. AIP, 1997. http://dx.doi.org/10.1063/1.51874.

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Sliburyte, Aukse, and Virgilijus Valeika. "Treatment of hide liming wastewater by carbon dioxide." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.iv.21.

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Results of the investigation of hide liming process wastewater treatment by carbon dioxide are presented in a paper. Comparison of the wastewater characteristics before and after the treatment by carbon dioxide was carried out. It was attempted to regenerate sodium sulphide using three different solutions: 10% solution of sodium carbonate and 5% or 10% solution of sodium hydroxide. The kinetic of sodium sulphide concentration, general alkalinity and pH was established. The solutions with the regenerated sodium sulphide were explored for unhairing of hide. The solution of 10% sodium hydroxide with regenerated sulphides was the mostly suitable for this aim. The properties of unhaired pelt were determined and assessed.

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Balintova, Magdalena, Stefan Demcak, Adriana Estokova, Marian Holub, and Petra Pavlikova. "Study of Thermal Reduction of Barium Sulphate for Barium Sulphide Preparation." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.004.

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Industrial wastewaters, particularly those associated with mining and mineral processing, can contain high con-centrations of sulphate. There are various methods of sulphate removal e.g. reverse osmosis, ion exchange, precipitation by lime, cements, and salts of barium and the biological removal process. The soluble salts of barium are most commonly used for precipitation of sulphate from aquatic acidic solutions to the insoluble product barium sulphate BaSO4. Benefits of precip-itation are high sulphate removal efficiency but limitations are toxicity of barium compounds and high economical costs. For this reason the recycling of BaSO4 to barium sulphide BaS (the precipitating reagent) is very important. The paper deals with study of BaSO4 reduction by activated carbon to BaS by thermal analysis and infrared spectrometry. DCS analysis indicated that conversion of BaSO4 to BaS in the range of temperature 800–1,000 °C was performed. Thermal analysis and infrared spectra of the products confirmed the change in its composition, but process of reduction by carbon was incomplete and in sample was still present a part of BaSO4. Presence of BaS was confirmed by colorimetric method.

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Reddy, K. Suresh Kumar, Ahmed Alshoaibi, and C. Srinivasakannan. "High Efficient Metal Sulphide Based Porous Carbon Matrix for Mercury Removal." In Abu Dhabi International Petroleum Exhibition and Conference. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/177701-ms.

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Mizernaya, M., B. Dyachkov, A. Miroshnikova, and A. Mizerny. "INDUSTRIAL TYPES OF GOLD DEPOSITS OF THE EAST KAZAKHSTAN." In GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b1/v2/14.

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The East Kazakhstan territory is the unique geologic province where a number of large-scale non-ferrous and gold deposits are concentrated [1]. Gold base metals (gold-containing) type is represented by gold containing sulphide complex deposits. It is characterized by many large-scale commercial deposits of copper, lead and zinc where gold as well as silver, cadmium, platinum, selenium and other elements are the associate component of copper-sulphide and sulphide complex deposits [2]. There are following ore types are distinguished: gold-listvenite type occurs in the Irtysh zone (Maraliha deposit); the gold-sulphide vein-disseminated type associated with island-arc, volcanogenic-carbonate-terrigenous formation С1v2-3 (Suzdalskoye, Baibura, Mirazh, Zhaima); gold-quartzite type is characterized by gold-quartzite-vein deposits in West Kalba zone (Kuludzhun, Sentash, Kazan-Chunkur and others); gold-arsenic-carbon-bearing type is presented by large, middle and small deposits of Bakyrchik’s group (Bakyrchik, Bolshevik, Gluboky Log and others). Last one is formed on middle-Hercynian collision ore-bearing level (С2-С3) [3]. Multiple-stage concentration of gold contributed to formation of very large deposits. Gold content ranges from is 0.2 to 60 g/t, average is 8-9 g/t. Considerable part of gold is found in micro- and nanoparticles, nanotubes containing Au, Ag, Pt, Pd, W, Mo, Sn, Y, Yb, Ta and other elements [

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Alshwigi, Mohamed A. M., Salem M. Musa, and Ali Basir. "The susceptibility of low carbon steel welded joint to sulphide stress cracking (SSC)." In 3RD INTERNATIONAL ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE CONGRESS. AIP, 2013. http://dx.doi.org/10.1063/1.4849290.

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Begemann, B., H. Mutschke, J. Dorschner, and Th Henning. "Can Mg/Fe sulphides solve the problem of the 30 μm band of carbon stars?" In The 50th international meeting of physical chemistry: Molecules and grains in space. AIP, 1994. http://dx.doi.org/10.1063/1.46654.

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Andersen, Tore Roberg. "Corrosion Fatigue of Steel Armours in Flexible Risers." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28052.

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Fatigue life calculation of flexible risers is normally based on the assumption that the annulus is dry. Experience has, however, shown that the annulus may become water flooded. Carbon dioxide and hydrogen sulphide permeate from the bore and into the annulus, making the annulus environment corrosive. In such conditions the influence of corrosion fatigue on fatigue life has to be taken into account. A test program was performed to investigate the corrosion fatigue performance of steel armour in water containing carbon dioxide. The results showed that the corrosive environment reduced the fatigue life to about 1/10 to 1/50 of that derived in air. The lifetime was significantly shorter in the environment with 0.1 bar compared to 0.01 bar, indicating that corrosion fatigue becomes more pronounced as the corrosivity increases. The work shown that corrosion fatigue has to be considered for flexible risers with annulus that is or may be water flooded.

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Bahadur, Raj, and Avram Bar-Cohen. "Characterization and Modeling of Anisotropic Thermal Conductivity in Polymer Composites." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15484.

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The thermophysical properties of a commercially available Polyphenylene Sulphide (PPS)-carbon fiber composite material are experimentally characterized and used to validate application of the Nielsen thermal conductivity model to this category of polymer matrix composites. The PPS-fiber thermal conductivity was measured in the three orthogonal directions, using the laser flash thermal diffusivity method, and found to display significant anisotropy. Thermal conductivity predictions based on the Nielsen model, and using E-SEM measured values of fiber dimensions and fiber orientation and carbon fiber mass content determined from TGA analysis, were found to be within 5% of the corresponding measurements. The close agreement between predictions and measurements permitted the determination of the morphological influence of fiber material, volume content and orientation, and resin and fiber thermal conductivities, on thermal conductivity to be parametrically investigated and optimized for a given formulation. The impact of this optimization on the thermal performance of a PPS-fiber pin fin is described.

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