Instability of zeolite Y supported cobalt sulfide hydrotreating catalysts in the presence of H2S

被引：15

作者：

Vissenberg, MJ ^{[1
]}

deBont, PW ^{[1
]}

Arnouts, JWC ^{[1
]}

vandeVen, LJM ^{[1
]}

deHaan, JW ^{[1
]}

vanderKraan, AM ^{[1
]}

deBeer, VHJ ^{[1
]}

vanVeen, JAR ^{[1
]}

vanSanten, RA ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,INTERFAC REACTOR INST,NL-2629 JB DELFT,NETHERLANDS

来源：

CATALYSIS LETTERS | 1997年 / 47卷 / 02期

关键词：

ion exchanged CoNaY zeolite; protolysis; sulfur analysis; temperature programmed sulfidation; EXAFS; ESR; Xe-129; NMR; thiophene hydrodesulfurization;

D O I：

10.1023/A:1019092602157

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of the sulfidation temperature of dehydrated ion exchanged CoNaY on the catalytic activity and structure was studied by thiophene I-IDS activity measurements, overall sulfur analysis, temperature programmed sulfidation, Xe adsorption measurements in combination with Xe-129 NMR, EXAFS and ESR. It was shown that up to a sulfidation temperature of 573 K small highly active Co sulfide clusters were formed in the supercages. Sulfidation above 573 K led to decomposition of these Co sulfide particles by a protolysis reaction resulting in the formation of H2S and a blue colored Co compound having almost no HDS activity.

引用

页码：155 / 160

页数：6

共 22 条

[1] TEMPERATURE-PROGRAMMED SULFIDING AND REDUCTION OF COO/AL2O3 CATALYSTS
ARNOLDY, P
DEBOOYS, JL
SCHEFFER, B
MOULIJN, JA
[J]. JOURNAL OF CATALYSIS, 1985, 96 (01) : 122 - 138
[2] Bonardet JL, 1995, STUD SURF SCI CATAL, V94, P139
[3] LOW-TEMPERATURE (144-K) XE-129 NMR OF AMORPHOUS MATERIALS - EFFECTS OF PORE-SIZE DISTRIBUTION ON CHEMICAL-SHIFT
CHEUNG, TTP
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (22) : 7549 - 7552
[4] deBont PW, 1996, ITAL PHY SO, V50, P649
[5] DEBONT PW, 1995, B SOC CHIM BELG, V104, P205
[6] DEBONT PW, IN PRESS
[7] CARBON-SUPPORTED SULFIDE CATALYSTS
DUCHET, JC
VANOERS, EM
DEBEER, VHJ
PRINS, R
[J]. JOURNAL OF CATALYSIS, 1983, 80 (02) : 386 - 402
[8] Gedeon A, 1995, STUD SURF SCI CATAL, V94, P187
[9] STRUCTURE AND OPTICAL-PROPERTIES OF CDS SUPERCLUSTERS IN ZEOLITE HOSTS
HERRON, N
WANG, Y
EDDY, MM
STUCKY, GD
COX, DE
MOLLER, K
BEIN, T
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (02) : 530 - 540
[10] TEMPERATURE-PROGRAMMED SULFIDING OF PRECURSOR COBALT OXIDE GENESIS OF HIGHLY-ACTIVE SITES ON SULFIDED COBALT CATALYST FOR HYDROGENATION AND ISOMERIZATION
INAMURA, K
TAKYU, T
OKAMOTO, Y
NAGATA, K
IMANAKA, T
[J]. JOURNAL OF CATALYSIS, 1992, 133 (02) : 498 - 514

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