New models of catalyst deactivation by coke: II. Coking of supported platinum catalysts

被引：9

作者：

Ostrovskii, NM ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Div, Boreskov Inst Catalysis, Omsk Branch, Omsk, Russia

来源：

KINETICS AND CATALYSIS | 2001年 / 42卷 / 03期

关键词：

D O I：

10.1023/A:1010457114059

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：

Metal and support deactivation upon the coking of supported metal catalysts occurs via different mechanisms. Several models of coking are presented. The most complete complex model is developed for supported platinum catalysts. It implies multilayer coke formation on support, the rapid formation of polymeric coke capable of self-regeneration by hydrogen directly in the course of reaction on platinum, and the slow conversion of this coke into graphite-like coke, which is removed only by oxidative regeneration. The models are experimentally supported for cyclohexane dehydrogenation.

引用

页码：326 / 333

页数：8

共 50 条

[21] PROPANE DEHYDROGENATION OVER SUPPORTED PLATINUM CATALYSTS - THE INFLUENCE OF TIN ON THE COKING PROPERTIES
BARIAS, OA
HOLMEN, A
BLEKKAN, EA
CATALYST DEACTIVATION 1994, 1994, 88 : 519 - 524
[22] Aromatics reduction over supported platinum catalysts. 1. Effect of sulfur on the catalyst deactivation of tetralin hydrogenation
1600, ACS, Washington, DC, USA (34):
[23] Electrochemical enhancement of carbon monoxide oxidation over yttria-stabilized zirconia supported platinum catalysts II. Effect of catalyst morphology on catalyst work function
Emery, DA
Middleton, PH
Metcalfe, IS
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (06) : 2194 - 2198
[24] The platinum electrode as a catalyst for the activation of hydrogen II.
Calvin, M
Dyas, HE
TRANSACTIONS OF THE FARADAY SOCIETY, 1937, 33 (02): : 1492 - 1494
[25] DEACTIVATION OF A SUPPORTED ZEOLITIC CATALYST - DIFFUSION, REACTION AND COKE DEPOSITION IN STOCHASTIC PORE NETWORKS
MANN, R
SHARRATT, PN
THOMSON, G
CHEMICAL ENGINEERING SCIENCE, 1986, 41 (04) : 711 - 718
[26] DEACTIVATION OF A SUPPORTED ZEOLITE CATALYST - SIMULATION OF DIFFUSION, REACTION AND COKE DEPOSITION IN A PARALLEL BUNDLE
MANN, R
THOMSON, G
CHEMICAL ENGINEERING SCIENCE, 1987, 42 (03) : 555 - 563
[27] Deactivation and coke formation on nickel-tungsten supported on silica-alumina catalysts
Rezgui, Yacine
Guemini, Miloud
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2008, 47 (12) : 4056 - 4062
[28] Characterisation of the deactivation of platinum and palladium supported on activated carbon used as hydrodechlorination catalysts
Ordóñez, S
Díez, FV
Sastre, H
APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 31 (02) : 113 - 122
[29] Isopropyl alcohol dehydration over chrominophosphate catalysts - II. Deactivation
Kuo, YC
Chen, YW
JOURNAL OF THE CHINESE INSTITUTE OF CHEMICAL ENGINEERS, 2000, 31 (01): : 1 - 9
[30] DISTRIBUTION OF COKE IN ALUMINUM OXIDE GRANULES. II. ROLE OF THE COKING TEMPERATURE.
Gavrilov, V.Yu.
Fenelonov, V.B.
Rachkovskaya, L.N.
Frolova, I.I.
Ovsyanikova, I.A.
Kinetics and Catalysis, 1986, 27 (3 pt 2) : 591 - 595

← 1 2 3 4 5 →