Associative adsorption kinetics: a novel kinetic model for the dehydrogenation of methylcyclohexane

被引：4

作者：

Akram, Muhammad Sarfraz ^{[1
]}

Munir, Dureem ^{[1
]}

Usman, Muhammad Rashid ^{[1
]}

机构：

[1] Univ Punjab, Inst Chem Engn & Technol, Lahore, Pakistan

来源：

PROGRESS IN REACTION KINETICS AND MECHANISM | 2014年 / 39卷 / 04期

关键词：

methylcyclohexane; dehydrogenation; reforming; associative adsorption; Langmuir -Hinshelwood-Hougen-Watson kinetics; REFORMING CATALYST; ALUMINA CATALYST; PLATINUM-ALUMINA; HYDROGEN; DEACTIVATION; PT-AL2O3; TOLUENE; CYCLOHEXANE; STORAGE; SYSTEM;

D O I：

10.3184/146867814X14120122636502

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：

Methylcyclohexane (MCH) dehydrogenation is an important reforming reaction and is considered as a model naphthene dehydrogenation reaction. An increase in the rate of this reaction with the addition of hydrogen at low pressures has been observed by various researchers in the field. This enhancement in rate is described, in the present study, using the concept of associative adsorption of MCH with hydrogen in Langmuir-Hinshelwood-Hougen-Watson single-site and dual-site surface reaction mechanisms. The various rate equations developed on these bases are tested against the experimental data of Usman over Pt/Al2O3 and the best-fit rate model is presented. An activation energy of 52.0 kJ mol(-1) is obtained for the best-fit rate model.

引用

页码：404 / 417

页数：14

共 29 条

[1] Kinetic Model of the Dehydrogenation of Methylcyclohexane over Monometallic and Bimetallic Pt Catalysts [J].

Alhumaidan, Faisal ;

Cresswell, David ;

Garforth, Arthur .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (05) :2509-2522

[2]

Antos G. J., 2004, CATALYTIC NAPHTHA RE, P7

[3] DEHYDROGENATION AND HYDROGENOLYSIS OF CYCLOHEXANE AND CYCLOHEXENE ON STEPPED (HIGH MILLER INDEX) PLATINUM SURFACES [J].

BLAKELY, DW ;

SOMORJAI, GA .

JOURNAL OF CATALYSIS, 1976, 42 (02) :181-196

[4]

CHAI MR, 1991, J CHEM TECHNOL BIOT, V51, P335

[5] DEHYDROGENATION OF METHYLCYCLOHEXANE ON THE PT-SN/AL2O3 INDUSTRIAL CATALYST [J].

CHAOUKI, J ;

TOUZANI, A ;

KLVANA, D ;

BOURNONVILLE, JP ;

BELANGER, G .

REVUE DE L INSTITUT FRANCAIS DU PETROLE, 1988, 43 (06) :873-881

[6] CATALYST DECAY IN THE KINETICS OF METHYLCYCLOHEXANE DEHYDROGENATION OVER PT-NAY ZEOLITE [J].

CORMA, A ;

CID, R ;

LOPEZAGUDO, A .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1979, 57 (05) :638-642

[7] DEHYDROGENATION OF METHYLCYCLOHEXENE ON A PTNAY CATALYST - STUDY OF KINETICS AND DEACTIVATION [J].

DELABANDA, JFG ;

CORMA, A ;

MELO, FV .

APPLIED CATALYSIS, 1986, 26 (1-2) :103-121

[8] PARAMETER-ESTIMATION IN THE KINETIC-MODEL OF METHYLCYCLOHEXANE DEHYDROGENATION ON A PT-AL2O3 CATALYST BY SEQUENTIAL EXPERIMENT DESIGN [J].

ELSAWI, M ;

INFORTUNA, FA ;

LIGNOLA, PG ;

PARMALIANA, A ;

FRUSTERI, F ;

GIORDANO, N .

CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1989, 42 (03) :137-144

[9] FOULING OF A PLATINUM REFORMING CATALYST ACCOMPANYING THE DEHYDROGENATION OF METHYL CYCLOHEXANE [J].

JOSSENS, LW ;

PETERSEN, EE .

JOURNAL OF CATALYSIS, 1982, 73 (02) :377-386

[10] KINETICS OF DEHYDROGENATION OF METHYLCYCLOHEXANE OVER A PLATINUM RHENIUM ALUMINA CATALYST IN THE PRESENCE OF ADDED HYDROGEN [J].

JOTHIMURUGESAN, K ;

BHATIA, S ;

SRIVASTAVA, RD .

INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1985, 24 (04) :433-438

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