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题名: A seven lumped kinetic model for industrial catalyst in DMTO process
作者: Ying, Lei1, 2, 3;  Yuan, Xiaoshuai2, 3, 4;  Ye, Mao2, 3;  Cheng, Youwei1;  Li, Xi1;  Liu, Zhongmin2, 3
关键词: Methanol to olefins ;  Industrial catalyst ;  Kinetic model
刊名: CHEMICAL ENGINEERING RESEARCH & DESIGN
发表日期: 2015-08-01
DOI: 10.1016/j.cherd.2015.05.024
卷: 100, 页:179-191
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Methanol to olefins (MTO) represents an important process for ethylene and propylene production from abundant natural materials, e.g. natural gas or biomass. This paper reports a lumped kinetic model for the MTO process over an industrial MTO catalyst, i.e. DMTO catalyst. The kinetic model takes into account seven lumps, i.e. methane, ethylene, propylene, propane, C-4, C-5(+) (including C-5, C-6 hydrocarbons and ethane) and coke. And a selective deactivation model was proposed to quantify the product selectivity and abrupt activity change in the MTO process. The kinetics under temperatures of 450 degrees C, 475 degrees C, and 490 degrees C, water/methanol mole ratio in the feed of 0, 2 and 4, and weight hour space velocity (WHSV) between 30 and 955 g(MeOH) g(cat)(-1) h(-1) was studied. Experiments with small WHSV of 2.1 and 2.8 g(MeOH) g(cat)(-1) h(-1) were further carried out to study the catalyst deactivation. The kinetic parameters were calculated by use of a nonlinear least square method, with special attention to the coke distribution along the axial distance. The proposed kinetic model is able to predict the product concentrations measured in the fixed bed reactor reasonable well, with relative deviations less than 5% for major species such as ethylene, propylene, butylenes and methanol. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: TO-OLEFINS PROCESS ;  FLUIDIZED-BED REACTOR ;  METHANOL CONVERSION ;  LIGHT OLEFINS ;  SAPO-34 CATALYST ;  MTG PROCESS ;  COKE FORMATION ;  DEACTIVATION ;  HYDROCARBONS ;  ZSM-5
语种: 英语
WOS记录号: WOS:000359956900017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146484
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhejiang Univ, Dept Chem & Biochem Engn, Hangzhou 310027, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab MTO, Dalian 116023, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Ying, Lei,Yuan, Xiaoshuai,Ye, Mao,et al. A seven lumped kinetic model for industrial catalyst in DMTO process[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2015,100:179-191.
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