Deactivation kinetics for the conversion of dimethyl ether to olefins over a HZSM-5 zeolite catalyst

被引：61

作者：

Perez-Uriarte, Paula ^{[1
]}

Ateka, Ainara ^{[1
]}

Gayubo, Ana G. ^{[1
]}

Cordero-Lanzac, Tomas ^{[1
]}

Aguayo, Andres T. ^{[1
]}

Bilbao, Javier ^{[1
]}

机构：

[1] Univ Basque Country UPV EHU, Dept Chem Engn, POB 644, Bilbao 48080, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2017年 / 311卷

关键词：

DTO; Olefins; HZSM-5; zeolite; Kinetic model; Coke; Deactivation; COKE FORMATION; MTG PROCESS; METHANOL TRANSFORMATION; PRODUCT DISTRIBUTION; RESIDUAL ACTIVITY; MOLECULAR-SIEVES; N-BUTANE; HYDROCARBONS; H-ZSM-5; MODEL;

D O I：

10.1016/j.cej.2016.11.104

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A deactivation kinetic equation for the conversion of dimethyl ether (DME) to olefins (DTO process) has been established. The catalyst has been prepared with a HZSM-5 zeolite (SiO2/Al2O3 ratio of 280) agglomerated with boehmite (mesoporous matrix of weak acidity). The experimental data have been obtained in an isothermal fixed bed reactor in a wide range of operating conditions: temperature, 573-673 K; space time, 0.2-6 g(cat) h mol(c)(-1); time on stream, 18 h; and different dilutions of DME (with He, methanol and water). The main cause of the catalyst deactivation is the coke deposition, being DME the principal precursor and the presence of water in the medium a key parameter in its attenuation. The kinetic model considers these effects and its use together with the kinetic model at zero time on stream results suitable to simulate the reactor over the whole range of operating conditions experimentally studied. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：367 / 377

页数：11

共 50 条

[21] The direct synthesis of dimethyl ether from syngas over the hybrid catalyst with antimony modified hzsm-5 zeolite as acid component
Department of Chemical Engineering, Shanghai Institute of Technology, Shanghai 200235, China
不详
Shiyou Xuebao Shiyou Jiagong, 2007, 1 (20-27):
[22] Study of the conversion of methanol to dimethyl ether on zeolite HZSM-5 using in situ flow MAS NMR
Carlson, LK
Isbester, PK
Munson, EJ
SOLID STATE NUCLEAR MAGNETIC RESONANCE, 2000, 16 (1-2) : 93 - 102
[23] A MECHANISM FOR METHANOL CONVERSION OVER HZSM-5 CATALYST
SAYED, MB
COONEY, RP
AUSTRALIAN JOURNAL OF CHEMISTRY, 1982, 35 (12) : 2483 - 2495
[24] Conversion of dimethyl ether into lower olefins on a La-Zr-HZSM-5/Al2O3 zeolite catalyst
E. N. Biryukova
T. I. Goryainova
R. V. Kulumbegov
N. V. Kolesnichenko
S. N. Khadzhiev
Petroleum Chemistry, 2011, 51 : 49 - 54
[25] Conversion of Dimethyl Ether into Lower Olefins on a La-Zr-HZSM-5/Al2O3 Zeolite Catalyst
Biryukova, E. N.
Goryainova, T. I.
Kulumbegov, R. V.
Kolesnichenko, N. V.
Khadzhiev, S. N.
PETROLEUM CHEMISTRY, 2011, 51 (01) : 49 - 54
[26] Conversion of dimethyl ether to liquid hydrocarbons over Zn-isomorphously substituted HZSM-5
Vosmerikova, L.N.
Matieva, Z.M.
Snatenkova, Yu.M.
Kolesnichenko, N.V.
Zaikovskii, V.I.
Vosmerikov, A.V.
Fuel, 2022, 320
[27] Effect of Cofeeding Butane with Methanol on the Deactivation by Coke of a HZSM-5 Zeolite Catalyst
Aguayo, Andres T.
Castano, Pedro
Mier, Diana
Gayubo, Ana G.
Olazar, Martin
Bilbao, Javier
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (17) : 9980 - 9988
[28] Conversion of dimethyl ether to liquid hydrocarbons over Zn-isomorphously substituted HZSM-5
Vosmerikova, L. N.
Matieva, Z. M.
Snatenkova, Yu M.
Kolesnichenko, N., V
Zaikovskii, V., I
Vosmerikov, A. V.
FUEL, 2022, 320
[29] DEACTIVATION AND REGENERATION OF HZSM-5 ZEOLITE IN ACETONE CONVERSION - PROPERTIES OF OH GROUPS
KUBELKOVA, L
NOVAKOVA, J
JOURNAL OF MOLECULAR CATALYSIS, 1992, 75 (01): : 53 - 62
[30] Deactivation of HZSM-5 catalyst in methanol to gasoline
School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang
Hebei
050018, China
Huagong Xuebao, 9 (3483-3489):

← 1 2 3 4 5 →