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Catalytic Activity and Molecular Behavior of Lanthanum Modified CoSx/gamma-Al2O3 Catalysts for the Reduction of SO2 to Sulfur in Smelter Off-Gas Using CO-H-2 Mixture as Reductant
Ge, Tingting1; Zuo, Cuncun2; Chen, Hongnan2; Muhammad, Yaseen2; Wei, Lubin1; Li, Chunshan2,3
2019-03-06
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume58Issue:9Pages:3595-3605
AbstractIn this study, a series of three-component CoSx/gamma-Al2O3 catalysts were developed for the reduction of high-content SO2 to sulfur in smelter off-gas. The introduction of a small amount of lanthanum additive greatly improved the catalytic activity and stability of Co-Cu/gamma-Al2O3 catalysts using coal gas as reductant. The catalysts were characterized by XRD, XPS, BET, and SEM techniques. H-2/CO-TPR was recorded to study redox properties of catalysts. With the use of a CO-H-2 mixture with different proportions, a series of parallel experiments were performed to investigate the mutual impact and relation of CO and H-2. Under optimum conditions, SO2 conversion of 99% and sulfur selectivity of 99% were obtained. The catalyst remained highly active after a long run of 200 h. Process simulation was used to investigate the molecular behavior of catalyst. Combined with in situ infrared characterization, the catalytic mechanism was put forward and verified.
DOI10.1021/acs.iecr.8b04323
Language英语
WOS KeywordGAMMA-ALUMINA SURFACE ; ELEMENTAL SULFUR ; CARBON-MONOXIDE ; STRUCTURAL MODELS ; HYDROGEN-SULFIDE ; AB-INITIO ; COAL-GAS ; DIOXIDE ; ADSORPTION ; RECOVERY
Funding ProjectNational Science Fund for Excellent Young Scholars[21422607] ; Key Program of National Natural Science Foundation of China[91434203] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH022]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Science Fund for Excellent Young Scholars ; Key Program of National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS
WOS IDWOS:000460996700004
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28298
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Chunshan
Affiliation1.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Natl Key Lab Clean & Efficient Coking Technol, Inst Proc Engn,State Key Lab Multiphase Complex S, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Langfang Branch, Langfang 065000, Peoples R China
Recommended Citation
GB/T 7714
Ge, Tingting,Zuo, Cuncun,Chen, Hongnan,et al. Catalytic Activity and Molecular Behavior of Lanthanum Modified CoSx/gamma-Al2O3 Catalysts for the Reduction of SO2 to Sulfur in Smelter Off-Gas Using CO-H-2 Mixture as Reductant[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2019,58(9):3595-3605.
APA Ge, Tingting,Zuo, Cuncun,Chen, Hongnan,Muhammad, Yaseen,Wei, Lubin,&Li, Chunshan.(2019).Catalytic Activity and Molecular Behavior of Lanthanum Modified CoSx/gamma-Al2O3 Catalysts for the Reduction of SO2 to Sulfur in Smelter Off-Gas Using CO-H-2 Mixture as Reductant.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,58(9),3595-3605.
MLA Ge, Tingting,et al."Catalytic Activity and Molecular Behavior of Lanthanum Modified CoSx/gamma-Al2O3 Catalysts for the Reduction of SO2 to Sulfur in Smelter Off-Gas Using CO-H-2 Mixture as Reductant".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58.9(2019):3595-3605.
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