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Thermodynamic Possibilities and Limits for Producer Gas Desulfurization and HCI Related Interferences for Zn, Mn, Ce and La Based Sorbents of Sulfur Compounds
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SYSNO ASEP 0444837 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Thermodynamic Possibilities and Limits for Producer Gas Desulfurization and HCI Related Interferences for Zn, Mn, Ce and La Based Sorbents of Sulfur Compounds Author(s) Svoboda, Karel (UCHP-M) RID, ORCID, SAI
Hartman, Miloslav (UCHP-M) RID, ORCID, SAI
Pohořelý, Michael (UCHP-M) RID, ORCID, SAI
Šyc, Michal (UCHP-M) RID, SAI, ORCID
Kameníková, Petra (UCHP-M) RID, SAI
Jeremiáš, Michal (UCHP-M) RID, ORCID, SAI
Huang, L.-W. (TW)Source Title Key Engineering Materials, Volume 656-657. - Dürnten : Trans Tech Publications, 2015 / Chen J. ; Hiroshi U. ; Lee S.-W. ; Fuh Y.-K. - ISSN 1013-9826 Pages s. 101-106 Number of pages 6 s. Publication form Print - P Action International Conference on Machining, Materials and Mechanical Technologies (IC3MT) Event date 31.08.2014-05.09.2014 VEvent location Taipei City Country TW - Taiwan, Province of China Event type WRD Language eng - English Country CH - Switzerland Keywords syngas ; desulfurization ; HCI and HF removal Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GC14-09692J GA ČR - Czech Science Foundation (CSF) Institutional support UCHP-M - RVO:67985858 EID SCOPUS 84952360057 DOI 10.4028/www.scientific.net/KEM.656-657.101 Annotation The study is concentrated on thermodynamic analyses of gas desulfurization process (deep removal of H2S, COS, thiophene) by selected solid sorbents (ZnO, MnO, CexOy and La2O3) and on interferences caused by presence of hydrogen halides in a temperature range 500-1100 K. The results show that theoretically Ce2O3 and La2O3 are the best sorbents for sulfur compounds at temperatures over approx. 700 K. The CexOy, La2O3 and MnO based sorbents can suffer from significant interferences caused by higher concentrations of HCl and HF in gas phase. The thermodynamic equilibria suggest that removal of HCl (HF) by soda based sorbents at temperatures 650 – 850 K is practically without interferences from sulfur compounds. The common alkali carbonates are less suitable than the calcium based (Ca(OH)2, CaCO3) sorbents for deep removal of HF. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2016
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