Добірка наукової літератури з теми "Isobutane Oxidation"
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Статті в журналах з теми "Isobutane Oxidation"
Mitran, Gheorghita, Ioan-Cezar Marcu, Tatiana Yuzhakova, and Ioan Sandulescu. "Selective oxidation of isobutane on V-Mo-O mixed oxide catalysts." Journal of the Serbian Chemical Society 73, no. 1 (2008): 55–64. http://dx.doi.org/10.2298/jsc0801055m.
Повний текст джерелаVogin, Bernard, François Baronnet, and Gérard Scacchi. "Étude chimique et cinétique de l'oxydation homogène en phase gazeuse d'alcanes légers. I. Isobutane." Canadian Journal of Chemistry 67, no. 5 (May 1, 1989): 759–72. http://dx.doi.org/10.1139/v89-115.
Повний текст джерелаGuan, Jingqi, Haiyan Xu, Shubo Jing, Shujie Wu, Yuanyuan Ma, Yanqiu Shao, and Qiubin Kan. "Selective oxidation of isobutane and isobutene over vanadium phosphorus oxides." Catalysis Communications 10, no. 3 (December 2008): 276–80. http://dx.doi.org/10.1016/j.catcom.2008.09.003.
Повний текст джерелаTakita, Yusaku, Qing Xia, Kayo Kikutani, Kazuya Soda, Hideaki Takami, Hiroyasu Nishiguchi, and Katsutoshi Nagaoka. "Anaerobic oxidation of isobutane." Journal of Molecular Catalysis A: Chemical 248, no. 1-2 (April 2006): 61–69. http://dx.doi.org/10.1016/j.molcata.2005.12.012.
Повний текст джерелаHikazudani, Susumu, Kayo Kikutani, Katsutoshi Nagaoka, Takanori Inoue, and Yusaku Takita. "Anaerobic oxidation of isobutane." Applied Catalysis A: General 345, no. 1 (July 2008): 65–72. http://dx.doi.org/10.1016/j.apcata.2008.04.022.
Повний текст джерелаBergfeldt, Trevor M., William L. Waltz, Xiangrong Xu, Petr Sedlák, Uwe Dreyer, Hermann Möckel, Jochen Lilie, and John W. Stephenson. "Photobehavior of aqueous uranyl ion and photo-oxygenation of isobutane using light from the visible region." Canadian Journal of Chemistry 81, no. 3 (March 1, 2003): 219–29. http://dx.doi.org/10.1139/v03-026.
Повний текст джерелаVogin, B., F. Baronnet, and G. Scacchi. "Étude chimique et cinétique de l'oxydation homogène en phase gazeuse d'alcanes légers. II. Propane et mécanisme généralisé." Canadian Journal of Chemistry 69, no. 1 (January 1, 1991): 43–61. http://dx.doi.org/10.1139/v91-008.
Повний текст джерелаSATO, Minoru, Hiroaki SHIGEOKA, and Yoshio NISHIMOTO. "Catalytic Oxidation of Flammable Refrigerant Isobutane." Proceedings of the JSME annual meeting 2004.5 (2004): 193–94. http://dx.doi.org/10.1299/jsmemecjo.2004.5.0_193.
Повний текст джерелаSATO, Minoru, Hiroaki SHIGEOKA, and Yoshio NISHIMOTO. "Catalytic Oxidation of Hydrocarbon Refrigerant Isobutane." Transactions of the Japan Society of Mechanical Engineers Series B 72, no. 724 (2006): 2992–98. http://dx.doi.org/10.1299/kikaib.72.2992.
Повний текст джерелаZhang, Li, Sébastien Paul, Franck Dumeignil, and Benjamin Katryniok. "Selective Oxidation of Isobutane to Methacrylic Acid and Methacrolein: A Critical Review." Catalysts 11, no. 7 (June 25, 2021): 769. http://dx.doi.org/10.3390/catal11070769.
Повний текст джерелаДисертації з теми "Isobutane Oxidation"
Jing, Fangli. "Innovative Keggin-type polyoxometalate-based catalysts for selective oxidation of isobutane into methacrylic acid." Thesis, Lille 1, 2012. http://www.theses.fr/2012LIL10019/document.
Повний текст джерелаSelective oxidation of isobutane supplies a simply and friendly to environment way to produce methacrylic acid. The Keggin-type polyoxometalates-based catalysts (NH4)3HPMo11VO40 (APMV) are used to catalyze the reaction as their controllable acidity and redox properties. But the low surface area restricts the catalytic performances. In this work, we tried to prepare the catalyst with high surface and study the effects of physochemical properties on catalytic performance.APMV were firstly supported on commercial SiO2, SBA-15 and ZrO2/SBA-15 and Cs3PMo12O40 (CPM). The surface area of catalysts increased after supporting, while the thermal stability were strongly depended on the support. Acidity played a significant role in activating the C-H bonds. The sample APMV/CPM showed the strongest acidic strength and further gave the best conversion of isobutane (15.3%) and maximum yield (8.0%) of the desired products. The content of APMV on CPM was then optimized. The partial degradation of catalyst was still observed. The V was expelled from Keggin unit under reaction conditions by surface analysis and reduced by isobutane. The Cs species were enriched on the surface. The sample 40APMV/CPM contained the maximum amount of acidic sites and gave the best catalytic performances. It also displayed good stability in 132 h run. The mixed salts Csx(NH4)3-xHPMo11VO40 were prepared to study the effects of surface Cs species. The porosity showed obvious difference as Cs content changed, as well as the acidity and redox properties. Cs element is favor to prevent V expelling from primary structure. Finally the optimization experiments in the range of Cs number from 1.7 to 2.5 was suggested
Weber, Daniel [Verfasser], and B. [Akademischer Betreuer] Kraushaar-Czarnetzki. "Oxidation von Isobutan und Isobuten zu Methacrolein an einem neuen Mo-basierten Mischoxid-Katalysator / Daniel Weber ; Betreuer: B. Kraushaar-Czarnetzki." Karlsruhe : KIT Scientific Publishing, 2019. http://d-nb.info/1186144769/34.
Повний текст джерелаMazumder, Baishakhi. "Oxidative dehydrodimerisation and aromatisation of isobutene on Biâ‚‚O₃-SnOâ‚‚." Thesis, University of Liverpool, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250237.
Повний текст джерелаLilic, Aleksandra. "Study of catalysts for isobutene and alcohols transformation in view of biomass valorization." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1084/document.
Повний текст джерелаThe present work focuses on the impact of the amount and strength of acidic and/or basic sites on the yield of acrolein produced by alcohols oxidative coupling in gas phase. The influence of acid/base ratio of catalytic sites has been studied in the aldol condensation of acetaldehyde and formaldehyde to acrolein performed in oxidizing conditions. The obtained data and correlations supplied valuable information to understand which parameters have to be modified to improve the acrolein selectivity. The first reaction of the process implies methanol and ethanol oxidation respectively to formaldehyde and acetaldehyde on a FeMoOx redox catalyst. Then the cross-aldolization of the two aldehydes and the dehydration to acrolein is performed on acid/base catalysts. Because the alcohols involved in this process can be bio-sourced, this new route to produce acrolein presents a very high interest, since it can replace the current fossil-based acrolein production (nowadays industrially produced by oxidation of propylene). The optimal catalyst should present amphoteric features with a similar amount of both basic and acidic sites. A moderate and balanced presence of acidic and basic sites improves the acrolein yield and the production of carbon oxides is significantly increased only at high temperature. Among all studied catalysts, MgO supported on silica has been identified as the best catalyst for aldol-condensation of aldehydes to acrolein in oxidizing conditions thanks to a given ratio of basic to acidic sites
Almukhlifi, Hanadi A. "Nanoparticle effects on partial and complete oxidation of isobutane over metal oxide catalysts." Thesis, 2016. http://hdl.handle.net/1959.13/1311957.
Повний текст джерелаGold nanoparticles, derived from preformed n-alkanethiolate-stabilised gold nanoparticles, have been supported on metal oxide catalysts and pyrovanadates for the complete oxidation of isobutane and the oxidative dehydrogenation of isobutane to isobutene, respectively. The initial adsorption of gold nanoparticles on metal oxides depends on the length of the alkyl carbon chain and the surface area of the metal oxide, and also forms alkyl-sulfoxide and -sulfone species. On thermolysis (340°C) to decompose the organic alkylthiolate ligands, residual adsorbed sulfate (0.2-0.3 wt%) remains on the catalyst surface. TEM/STEM studies have shown that the sizes of gold nanoparticles, originally 1.8-2.0 nm, increase in diameter following adsorption and thermolysis. This depends on the surface area of the support. n-Hexanethiolate-stabilised gold nanoparticles were used to obtain 5 wt% Au nanoparticles supported on β-MnO₂, α-Fe₂O₃, Co₃O₄ and NiO. The oxides, with and without gold nanoparticles, were investigated for the complete oxidation of isobutane. Some effect from residual sulfate was detected, although this depended on the metal oxide. TEM/STEM and XRD studies were used to monitor the sizes of the gold nanoparticles, which were 2-4 nm in size. Analogous studies, with and without gold nanoparticles, on supported metal oxides of the type MOx/γ-Al₂O₃ and MOx/CeO₂ (M = Mn, Fe, Co, Ni), were studied for the complete oxidation of isobutane. Gold 4f XPS studies showed that it was likely that gold nanoparticles were the key to the oxidation catalysis and not any higher oxidation states of gold. The transition metal pyrovanadates, M₂V₂O₇ (MII = Mn, Co, Ni, Cu and Zn), again with and without gold nanoparticles (5 wt%) have been investigated for the oxidative dehydrogenation of isobutane to isobutene from 300-450°C under reducing conditions (isobutane:O₂ = 20:1). Pyrovanadate reduction occurred to produce V(IV) and/or V(III) products that depended on the identity of M(II) and the presence of gold nanoparticles. The conversions reached as high as 11% and 16% in the absence and presence of gold nanoparticles, and the selectivities to isobutene were as high as 40-50%. Gold 4f XPS studies showed that the highest yields of isobutene correlated with a lower Au(I) content. Co₂VO₄ and ZnV₂O₄ were also found to be active catalysts for this reaction.
Almukhlifi, Hanadi. "The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides." Thesis, 2012. http://hdl.handle.net/1959.13/933148.
Повний текст джерелаThis thesis describes a new approach for the preparation of oxidation catalysts that contain pure gold nanoparticles on their surfaces and within their pore structures. The prepared gold nanoparticles were loaded onto phosphopolyoxomolybdate and metal oxide surfaces and the resulting catalysts were used for the partial and complete oxidation of isobutane. The process involved the initial formation of n-hexanethiol-stabilised gold nanoparticles, followed by addition of a solution of the stabilised gold nanoparticles in n-hexane to the solid catalyst and allowing adsorption to occur. Following this, thermolysis converted the n-hexanethiolate-stabilised gold nanoparticles to pure gold nanoparticles loaded on the catalyst surface by decomposition of the thiolate ligand from the gold nanoparticle surface.
Cheng, Chih-Hsiang, and 鄭至翔. "Removal of organic compounds in spent acid from isobutene/olefinalkylation process by electrochemical oxidation." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/64399078439458452605.
Повний текст джерела雲林科技大學
化學工程與材料工程研究所
97
In this study the electrochemical oxidation method is employed todispose the spent acid from isobutene/olefin alkylation process. The spentacid produced in the laboratory is by means of passing a butene streamthrough concentrated sulfuric acid, of which organic compoundsconcentration is 10970-23770 mg/L. Effects of operating parameters onthe performance of removal of organic compounds in spent acid havebeen investigated, including electrode potential, reaction temperature,sulfuric acid concentration and oxygen dosage. The removal percentageof TOC reaches 58% under the conditions of electrode potential = 5V, T =298 K, O2 = 120 ml/min and H2SO4 = 96 wt% after the duration of 12 hrs.The phenomenon observed is attributed to the oxidizing agentelectrogenerated in the cathode, wherein the oxygen is reduced intohydrogen peroxide. The oxygen gas is believed to mainly derive fromwater electrolysis in the anode. In another respect, the degradation oforganic compounds in spent acid using Electro-Fenton method has alsobeen conducted. The removal percentage of organic compounds is merely%. The observation may be explained by the reduction of ferrous iron inthe cathode, which would block some active sites for electrogeneration ofhydrogen peroxide.
Taubert, Thomas. "Festbettreaktor vs. Mikrostrukturreaktor am Beispiel der oxidativen Dimerisierung von Isobuten /." 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016700298&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Повний текст джерелаTaubert, Thomas [Verfasser]. "Festbettreaktor vs. Mikrostrukturreaktor am Beispiel der oxidativen Dimerisierung von Isobuten / von Thomas Taubert." 2006. http://d-nb.info/98931037X/34.
Повний текст джерелаЧастини книг з теми "Isobutane Oxidation"
Cavani, Fabrizio, Clara Comuzzi, Giuliano Dolcetti, Richard G. Finke, Arianna Lucchi, Ferruccio Trifirò, and Alessandro Trovarelli. "The Catalytic Activity of Wells—Dawson and Keggin Heteropolyoxotungstates in the Selective Oxidation of Isobutane to Isobutene." In ACS Symposium Series, 140–54. Washington, DC: American Chemical Society, 1996. http://dx.doi.org/10.1021/bk-1996-0638.ch010.
Повний текст джерелаFan, Li, Takashi Watanabe, and Kaoru Fujimoto. "Supercritical-phase oxidation of isobutane to t-butanol by air." In Natural Gas Conversion V, Proceedings ofthe 5th International Natural Gas Conversion Symposium,, 581–86. Elsevier, 1998. http://dx.doi.org/10.1016/s0167-2991(98)80494-1.
Повний текст джерелаSultan, M., S. Paul, and D. Vanhove. "Kinetic effects of chemical modifications of PMo12 catalysts for the selective oxidation of isobutane." In Studies in Surface Science and Catalysis, 283–90. Elsevier, 1999. http://dx.doi.org/10.1016/s0167-2991(99)80158-x.
Повний текст джерелаMizuno, Noritaka, Wonchull Han, Tetsuichi Kudo, and Masakazu Iwamoto. "Direct oxidation of isobutane into methacrylic acid over Cs, Ni, and V-substituted H3PMo12O40 heteropoly compounds." In 11th International Congress On Catalysis - 40th Anniversary, Proceedings of the 11th ICC, 1001–10. Elsevier, 1996. http://dx.doi.org/10.1016/s0167-2991(96)80311-9.
Повний текст джерелаCavani, F., R. Mezzogori, A. Pigamo, and F. Trifirò. "Modification of redox and catalytic properties of Keggin-type, Sb-doped P/Mo polyoxometalates in the selective oxidation of isobutane to methacrylic acid: control of preparation conditions." In Studies in Surface Science and Catalysis, 141–52. Elsevier, 2001. http://dx.doi.org/10.1016/s0167-2991(01)80144-0.
Повний текст джерелаCalvert, Jack, Abdelwahid Mellouki, John Orlando, Michael Pilling, and Timothy Wallington. "Rate Coefficients and Mechanisms for the Atmospheric Oxidation of the Alcohols." In Mechanisms of Atmospheric Oxidation of the Oxygenates. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199767076.003.0005.
Повний текст джерелаRaybold, T. M., and M. C. Huff. "Catalytic oxidative dehydrogenation of isobutane in a Pd membrane reactor." In Studies in Surface Science and Catalysis, 501–7. Elsevier, 1997. http://dx.doi.org/10.1016/s0167-2991(97)81011-7.
Повний текст джерелаNekrasov, N. V., N. A. Gaidai, Yu A. Agafonov, S. L. Kiperman, V. Cortés Corberán, and M. F. Portela. "Transient response studies of isobutane oxidative dehydrogenation over molybdenum catalysts." In Studies in Surface Science and Catalysis, 1901–6. Elsevier, 2000. http://dx.doi.org/10.1016/s0167-2991(00)80479-6.
Повний текст джерелаHiltner, H., and G. Emig. "Oxidative coupling of isobutene in a two step process." In Studies in Surface Science and Catalysis, 593–602. Elsevier, 1997. http://dx.doi.org/10.1016/s0167-2991(97)81021-x.
Повний текст джерелаBelomestnykh, I. P., and G. V. Isaguliants. "Oxidative alkylation of isobutene, propene and toluene with methanol." In Studies in Surface Science and Catalysis, 2639–44. Elsevier, 2000. http://dx.doi.org/10.1016/s0167-2991(00)80868-x.
Повний текст джерелаТези доповідей конференцій з теми "Isobutane Oxidation"
"THE ANALYSIS OF LITERARY AND EXPERIMENTAL STUDIES WHEN DEVELOPING THE THEORETICAL BASES OF THE PROCESS OF OXIDATION OF ISOBUTENE ON OXIDIC CATALYSTS." In Advanced Studies in Science: Theory and Practice. Global Partnership on Development of Scientific Cooperation LLC, 2015. http://dx.doi.org/10.17809/14(2015)-19.
Повний текст джерелаЗвіти організацій з теми "Isobutane Oxidation"
Lee, Ivan C., Jeffrey G. St. Clair, and Adam S. Gamson. Catalytic Oxidative Dehydration of Butanol Isomers: 1-Butanol, 2-Butanol, and Isobutanol. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada550017.
Повний текст джерела