DICP OpenIR
CoMo/Al2O3 catalysts prepared by tailoring the surface properties of alumina for highly selective hydrodesulfurization of FCC gasoline
Zhang, Cen1,2; Brorson, Michael3; Li, Ping1; Liu, Xinyi1,2; Liu, Tiefeng1; Jiang, Zongxuan1; Li, Can1
Corresponding AuthorJiang, Zongxuan(zxjiang@dicp.ac.cn) ; Li, Can(canli@dicp.ac.cn)
KeywordSelective hydrodesulfurization Alumina Metal-support interaction MoS(2)morphology tuning Fluid catalytic cracking gasoline
Source PublicationAPPLIED CATALYSIS A-GENERAL
2019-01-25
ISSN0926-860X
DOI10.1016/j.apcata.2018.10.039
Volume570Pages:84-95
Funding ProjectHaldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning[U1508205]
Funding OrganizationHaldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning ; Haldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning ; Haldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning ; Haldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS KeywordDIFFERENT CRYSTAL FORMS ; HDS CATALYSTS ; ADSORPTIVE DESULFURIZATION ; DIESEL FUEL ; PERFORMANCE ; MO ; MORPHOLOGY ; MOLYBDATE ; DIBENZOTHIOPHENE ; NANOPARTICLES
AbstractTraditionally prepared CoMo/Al2O3 hydrotreating catalysts, although efficient for deep desulfurization, are not suitable for fluid catalytic cracking (FCC) gasoline hydrodesulfurization (HDS) due to their high olefin hydrogenation (HYD) activity especially when the HDS conversion is high. Herein, two alumina supports with tailored surface properties were prepared by calcination of hydrothermally treated pseudo-boehmite (PB) and hydro thermally treated gamma-Al2O3 in order to design CoMo/Al2O3 catalysts with high HDS selectivity. It is found that compared with the traditional alumina prepared by direct calcination of PB, the two tailored alumina supports have notably decreased surface area, surface hydroxyl groups and Lewis acidity. The characterization results show that the catalysts obtained from CoMo supported on the two tailored supports have lowered Mo dispersion, weakened metal-support interaction, increased Mo sulfidation degree and longer MoS2 slabs than the traditional CoMo/Al2O3 catalyst. The catalytic results of three different CoMo/Al2O3 catalysts in the HDS of a full-range FCC gasoline show that the HDS selectivity is increased remarkably (selectivity factors increase from 5.5 to 11.0) with the decreased surface area, surface hydroxyl groups and Lewis acidity of the alumina supports. Especially, CoMo supported on the tailored alumina support prepared by calcination of hydrothermally treated gamma-Al2O3 (denoted as CoMo/Al2O3-3) exhibits a 15% lower olefin HYD activity than traditional Como/Al2O3 catalyst even at the same and high HDS conversion (95%). The greatly improved HDS selectivity can be well explained by the increased slab length of supported MoS2 particles, resulting in notably decreased HYD activity catalyzed by the corner sites. Besides, CoMo/Al2O3-3 also shows superior HDS selectivity in the HDS of a real heavy FCC naphtha, where the sulfur content can be reduced from 309 ppm to 10 ppm with an accompanying RON loss of only 1.0 unit.
Language英语
Funding OrganizationHaldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning ; Haldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning ; Haldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning ; Haldor Topsoe A/S company in Denmark ; Haldor Topsoe A/S company in Denmark ; United Funds of NSFC-Liaoning ; United Funds of NSFC-Liaoning
WOS IDWOS:000457661500009
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166127
Collection中国科学院大连化学物理研究所
Corresponding AuthorJiang, Zongxuan; Li, Can
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Haldor Topsoe Res Labs, Haldor Topsoes Alle 1, DK-2800 Lyngby, Denmark
Recommended Citation
GB/T 7714
Zhang, Cen,Brorson, Michael,Li, Ping,et al. CoMo/Al2O3 catalysts prepared by tailoring the surface properties of alumina for highly selective hydrodesulfurization of FCC gasoline[J]. APPLIED CATALYSIS A-GENERAL,2019,570:84-95.
APA Zhang, Cen.,Brorson, Michael.,Li, Ping.,Liu, Xinyi.,Liu, Tiefeng.,...&Li, Can.(2019).CoMo/Al2O3 catalysts prepared by tailoring the surface properties of alumina for highly selective hydrodesulfurization of FCC gasoline.APPLIED CATALYSIS A-GENERAL,570,84-95.
MLA Zhang, Cen,et al."CoMo/Al2O3 catalysts prepared by tailoring the surface properties of alumina for highly selective hydrodesulfurization of FCC gasoline".APPLIED CATALYSIS A-GENERAL 570(2019):84-95.
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