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A seven lumped kinetic model for industrial catalyst in DMTO process
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
2015-08-01
DOI10.1016/j.cherd.2015.05.024
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
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
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.
语种英语
WOS记录号WOS:000359956900017
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146484
专题中国科学院大连化学物理研究所
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
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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.
APA Ying, Lei,Yuan, Xiaoshuai,Ye, Mao,Cheng, Youwei,Li, Xi,&Liu, Zhongmin.(2015).A seven lumped kinetic model for industrial catalyst in DMTO process.CHEMICAL ENGINEERING RESEARCH & DESIGN,100,179-191.
MLA Ying, Lei,et al."A seven lumped kinetic model for industrial catalyst in DMTO process".CHEMICAL ENGINEERING RESEARCH & DESIGN 100(2015):179-191.
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