Highly active hydrotreatment catalysts prepared with chelating agents

被引：97

作者：

Shimizu, T ^{[1
]}

Hiroshima, K ^{[1
]}

Honma, T ^{[1
]}

Mochizuki, T ^{[1
]}

Yamada, M ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, Sendai, Miyagi 98077, Japan

来源：

CATALYSIS TODAY | 1998年 / 45卷 / 1-4期

关键词：

hydrotreatment catalysts; chelating agents; NTA; EDTA; CyDTA; hydrodesulfurization; hydrogenation;

D O I：

10.1016/S0920-5861(98)00227-2

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydrotreatment catalysts (Co-Mo/Al2O3, Ni-Mo/Al2O3 and Ni-W/Al2O3) were prepared by an impregnation method using an aqueous solution containing a chelating agent (nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA) or trans-1,2-cyclohexanediamine-N,N,N',N'-tetraacetic acid (CyDTA)). Co-Mo/Al2O3 and Ni-W/Al2O3 prepared with the chelating agents showed higher hydrodesulfurization (HDS) activity as well as hydrogenation (HYD) activity under high pressure (5.1 MPa) than those prepared without the chelating agents. Co-Mo/Al2O3 prepared with CyDTA showed ca. 70% higher HDS activity for benzothiophene (BT) than that prepared without it. HYD activity of Ni-W/Al2O3 for o-xylene was promoted about 65% by the addition of CyDTA. FT-IR of nitric oxide (NO) adsorbed on the sulfided Co-Mo/Al2O3's suggested that Co was highly dispersed over the catalyst surface when the catalysts were prepared with the chelating agents. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：271 / 276

页数：6

共 19 条

[1] ON THE STRUCTURAL DIFFERENCES BETWEEN ALUMINA-SUPPORTED COMOS TYPE-I AND ALUMINA-SUPPORTED, SILICA-SUPPORTED, AND CARBON-SUPPORTED COMOS TYPE-II PHASES STUDIED BY XAFS, MES, AND XPS [J].

BOUWENS, SMAM ;

VANZON, FBM ;

VANDIJK, MP ;

VANDERKRAAN, AM ;

DEBEER, VHJ ;

VANVEEN, JAR ;

KONINGSBERGER, DC .

JOURNAL OF CATALYSIS, 1994, 146 (02) :375-393

[2] EXTENDED X-RAY ABSORPTION FINE-STRUCTURE DETERMINATION OF THE STRUCTURE OF COBALT IN CARBON-SUPPORTED CO AND CO-MO SULFIDE HYDRODESULFURIZATION CATALYSTS [J].

BOUWENS, SMAM ;

VANVEEN, JAR ;

KONINGSBERGER, DC ;

DEBEER, VHJ ;

PRINS, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (01) :123-134

[3] Remote control of catalytic sites by spillover species: A chemical reaction engineering approach [J].

Delmon, B ;

Froment, GF .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1996, 38 (01) :69-100

[4] C-13, O-17, AND MO-95 NUCLEAR MAGNETIC-RESONANCE STUDIES OF OXOMOLYBDENUM(VI) COMPLEXES [J].

FREEMAN, MA ;

SCHULTZ, FA ;

REILLEY, CN .

INORGANIC CHEMISTRY, 1982, 21 (02) :567-576

[5] High HDS activity of Co-Mo/Al2O3 modified by some chelates and their surface fine structures [J].

Hiroshima, K ;

Mochizuki, T ;

Honma, T ;

Shimizu, T ;

Yamada, M .

APPLIED SURFACE SCIENCE, 1997, 121 :433-436

[6] HYDRODESULFURIZATION OF METHYL-SUBSTITUTED DIBENZOTHIOPHENES CATALYZED BY SULFIDED CO-MO-GAMMA-AL2O3 [J].

HOUALLA, M ;

BRODERICK, DH ;

SAPRE, AV ;

NAG, NK ;

BEER, VHJD ;

GATES, BC ;

KWART, H .

JOURNAL OF CATALYSIS, 1980, 61 (02) :523-527

[7] DEEP DESULFURIZATION OF LIGHT OIL .2. HYDRODESULFURIZATION OF DIBENZOTHIOPHENE, 4-METHYLDIBENZOTHIOPHENE AND 4,6-DIMETHYLDIBENZOTHIOPHENE [J].

KABE, T ;

ISHIHARA, A ;

ZHANG, Q .

APPLIED CATALYSIS A-GENERAL, 1993, 97 (01) :L1-L9

[8]

KASAHARA S, 1995, SEKIYU GAKKAISHI, V38, P81

[9] Effective dispersion of Co in Co-Mo/Al2O3 induced by high pressure sulfiding by means of FT-IR using NO as surface probe molecule [J].

Koizumi, N ;

Iijima, M ;

Kasahara, S ;

Yamada, M .

CHEMISTRY LETTERS, 1996, (09) :815-816

[10]

KOIZUMI N, 1989, CATALYSIS TODAY, V45, P315

← 1 2 →