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Статті в журналах з теми "Direct in situ high-pressure preconcentration"
Lecharlier, Aurore, Hervé Carrier, Brice Bouyssiere, Guilhem Caumette, Pierre Chiquet, and Isabelle Le Hécho. "Novel field-portable high-pressure adsorbent tube sampler prototype for the direct in situ preconcentration of trace compounds in gases at their working pressures: application to biomethane." RSC Advances 12, no. 16 (2022): 10071–87. http://dx.doi.org/10.1039/d2ra00601d.
Повний текст джерелаClaflin, Megan S., Demetrios Pagonis, Zachary Finewax, Anne V. Handschy, Douglas A. Day, Wyatt L. Brown, John T. Jayne, et al. "An in situ gas chromatograph with automatic detector switching between PTR- and EI-TOF-MS: isomer-resolved measurements of indoor air." Atmospheric Measurement Techniques 14, no. 1 (January 7, 2021): 133–52. http://dx.doi.org/10.5194/amt-14-133-2021.
Повний текст джерелаMohn, J., C. Guggenheim, B. Tuzson, M. K. Vollmer, and L. Emmenegger. "A liquid nitrogen-free preconcentration unit for measurements of ambient N<sub>2</sub>O isotopomers by QCLAS." Atmospheric Measurement Techniques Discussions 2, no. 6 (December 4, 2009): 3099–126. http://dx.doi.org/10.5194/amtd-2-3099-2009.
Повний текст джерелаHumphries, Terry D., Derek Birkmire, Bjørn C. Hauback, G. Sean McGrady, and Craig M. Jensen. "In situ high pressure NMR study of the direct synthesis of LiAlH4." Journal of Materials Chemistry A 1, no. 9 (2013): 2974. http://dx.doi.org/10.1039/c3ta10239d.
Повний текст джерелаHumphries, Terry D., Derek Birkmire, Bjørn C. Hauback, G. Sean McGrady, and Craig M. Jensen. "In situ high pressure NMR study of the direct synthesis of NaAlH4." Physical Chemistry Chemical Physics 15, no. 17 (2013): 6179. http://dx.doi.org/10.1039/c3cp50777g.
Повний текст джерелаMohn, J., C. Guggenheim, B. Tuzson, M. K. Vollmer, S. Toyoda, N. Yoshida, and L. Emmenegger. "A liquid nitrogen-free preconcentration unit for measurements of ambient N<sub>2</sub>O isotopomers by QCLAS." Atmospheric Measurement Techniques 3, no. 3 (May 12, 2010): 609–18. http://dx.doi.org/10.5194/amt-3-609-2010.
Повний текст джерелаKrogh Andersen, Anne Marie, та Stefan Carlson. "High-pressure structures of α- and δ-ZrMo2O8". Acta Crystallographica Section B Structural Science 57, № 1 (1 лютого 2001): 20–26. http://dx.doi.org/10.1107/s0108768100013215.
Повний текст джерелаKakurina, Maria, Yves Guglielmi, Christophe Nussbaum, and Benoît Valley. "In Situ Direct Displacement Information on Fault Reactivation During Fluid Injection." Rock Mechanics and Rock Engineering 53, no. 10 (August 10, 2020): 4313–28. http://dx.doi.org/10.1007/s00603-020-02160-w.
Повний текст джерелаHoffman, Adam S., Joseph A. Singh, Stacey F. Bent, and Simon R. Bare. "In situ observation of phase changes of a silica-supported cobalt catalyst for the Fischer–Tropsch process by the development of a synchrotron-compatible in situ/operando powder X-ray diffraction cell." Journal of Synchrotron Radiation 25, no. 6 (October 26, 2018): 1673–82. http://dx.doi.org/10.1107/s1600577518013942.
Повний текст джерелаIvanova, E., G. Schaldach, and H. Berndt. "Hydraulic high-pressure nebulization sample introduction for direct analysis or on-line matrix separation and trace preconcentration in flame AAS." Fresenius' Journal of Analytical Chemistry 342, no. 1-2 (1992): 47–50. http://dx.doi.org/10.1007/bf00321688.
Повний текст джерелаДисертації з теми "Direct in situ high-pressure preconcentration"
Lecharlier, Aurore. "Caractérisation des composés trace dans le biogaz et biométhane : développement d'une méthode d'échantillonnage, de préconcentration in situ et d'analyse." Electronic Thesis or Diss., Pau, 2022. http://www.theses.fr/2022PAUU3008.
Повний текст джерелаIn pursuance of enhancing knowledge on biogas and biomethane’s trace compounds to help guarantee their sustainable integration in today’s European energy mix, a field sampling set-up enabling direct in situ preconcentration of non-metallic trace compounds in such gas samples at their pipe working pressure (up to 200 bara) was developed. Non-metallic trace compounds targeted in this work included alkanes (linear, cyclic, polycyclic), aromatics, terpenes, alkenes, halogenated organic species, oxygenated organic species (alcohols, aldehydes, esters, furans and ethers, ketones), siloxanes, organic and inorganic Sulphur-compounds. Firstly, state-of-the-art gas sampling and preconcentration techniques for the determination of trace compounds in gaseous matrices were reviewed. Based on this review, preconcentration was chosen to be performed on self-assembled multibed adsorbent tubes (MAT). The preconcentration system was elaborated and optimized in the laboratory: convenient commercial adsorbents were selected; procedures for the assembly and conditioning of new MAT were established; four MAT configurations were tested on their efficiency in adsorbing and releasing targeted trace compounds using certified synthetic gas mixtures containing targeted species at trace concentrations (1 ppmmol) in CH4 or N2 matrices. Analytes preconcentrated on MAT were recovered for analysis by thermal desorption (TD) of the tubes using a new TD prototype followed by gas chromatography (GC) hyphenated with mass spectrometry (MS) (TD-GC-MS). Secondly, the analytical method, and in particular the new TD prototype, was validated. The chromatographic resolution power of the new TD prototype was proved to be higher than that obtained from other well established preconcentration or GC-injection methods such as solid phase microextraction or direct headspace gas injection. Besides, GC-MS parameters were optimized to detect the broad range of trace compounds potentially found in biogas and biomethane.Thirdly, the use of a novel high-pressure tube sampling (HPTS) prototype was evaluated for the circulation of pressurized gases (up to 200 bara) through MAT for the direct high-pressure preconcentration of trace compounds from such gases. The HPTS was first validated in the laboratory using pressurized certified synthetic gas mixtures, and then used on field to sample compressed biomethane at a natural gas grid injection station at 40 bara.Subsequently, the field sampling chain was set-up and 6 field sampling campaigns were conducted where 6 different streams of landfill gas, biogas and biomethane were collected at a landfill plant and two anaerobic digestion plants treating diverse feedstocks. Trace compounds were qualitatively determined in all gas samples via the developed TD-GC-MS method. In a single sampling run and using limited gas volumes ranging 0.5 – 2 LN, a wide range of trace compounds in a variety of chemical families (alcohols, aldehydes, alkenes, aromatics, alkanes (linear, cyclic and polycyclic), esters, furans and ethers, halogenated species, ketones, Sulphur-compounds, siloxanes and terpenes) were identified. Variations in trace compounds composition were observed in the different gases sampled and potential correlations between feedstocks nature, implemented gas treatment processes and trace compounds determined were discussed. In particular, the substantial generation of the mono-terpene p-cymene and of other terpenes was evidenced for anaerobic digestion plants treating principally food-wastes. It is believed the shortened and high-pressure-proof field preconcentration procedure developed in this work can contribute facilitating field sampling operations for the determination of trace compounds in complex gas matrices such as biogas and biomethane
Частини книг з теми "Direct in situ high-pressure preconcentration"
Batista Leão, Juscelino. "Pressure Inhomogeneities across Large Samples Using Gas Pressure Media at Low Temperatures." In Hydrostatics [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103062.
Повний текст джерелаТези доповідей конференцій з теми "Direct in situ high-pressure preconcentration"
Park, Dong-Yeob, Jie Liang, and Jean-Philippe Gravel. "Fatigue Crack Growth Assessment of Pipeline Steels and Girth Welds." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-80320.
Повний текст джерелаWidmer, Marcel, Patrik Hoffmann, Baudouin Lecohier, Herbert Solka, Jean-Michel Philippoz, and Hubert van den Bergh. "Fast In-Situ Metallization: A Comparison of Several Methods with Possible Applications in High Density Multichip Interconnects." In The Microphysics of Surfaces: Beam-Induced Processes. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/msbip.1991.wa3.
Повний текст джерелаThompson, Nicholas, Jamie Stuart Andrews, Håvard Reitan, and Nuno Eládio Teixeira Rodrigues. "Data Mining of In-Situ Stress Database Towards Development of Regional and Global Stress Trends and Pore Pressure Relationships." In SPE Norway Subsurface Conference. SPE, 2022. http://dx.doi.org/10.2118/209525-ms.
Повний текст джерелаHowe, Benjamin, Fabio Scenini, Grace Burke, and Jonathan Mann. "The Development of a New Method to Compare the Fatigue Crack Growth Rates of Austenitic Stainless Steel Operating in a PWR Primary Coolant Subjected to Plant Realistic Temperature Loading." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84208.
Повний текст джерелаDogan, Bilal. "Small Punch Testing and Application in Power Generation Industry." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57048.
Повний текст джерелаGriffiths, Adam, Peter Gill, Ben Coult, Jack Beswick, Norman Platts, Jonathan Mann, Chris Currie, and Joe Airey. "Negative R Fatigue Short Crack Growth Rate Testing on Austenitic Stainless Steels." In ASME 2021 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/pvp2021-62909.
Повний текст джерелаParmar, Kaushik, Chaneel Park, and Simon Park. "Robust Direct Hydrocarbon Sensor Based on Novel Carbon Nanotube Nanocomposites for Leakage Detection." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64118.
Повний текст джерелаQuiros, Gerardo W., Patricia M. Peters, and Kuat C. Gan. "Update on a Normalized Soil Parameter Procedure (SP-SPW Method) for Evaluating In-Situ Undrained Shear Strength." In Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32562-ms.
Повний текст джерелаGao, Jun, Hyung T. Kwak, and Marwah AlSinan. "Accurate Carbonate Pore System Characterization by Nuclear Magnetic Resonance and Micro-CT Techniques." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204659-ms.
Повний текст джерелаWei, Bing, Qiong Yang, Runxue Mao, Qingtao Tian, Dianlin Wang, and Jun Lu. "Direct Visualization and Quantification of NCF-Strengthened CO2 Foam Generation, Propagation and Sweep in a 2D Heterogeneous Fracture Network Model." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206011-ms.
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