DICP OpenIR
Attrition of methanol to olefins catalyst in jet cup
Hao, Jingai1,2; Zhao, Yinfeng1; Ye, Mao1; Liu, Zhongmin1
KeywordAttrition Mto Catalyst Jet Cup Gwyn Formulation
Source PublicationPOWDER TECHNOLOGY
2017-07-01
DOI10.1016/j.powtec.2016.12.091
Volume316Pages:79-86
Indexed BySCI ; ISTP
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordFISCHER-TROPSCH CATALYSTS ; FLUIDIZED-BED ; SIZE DISTRIBUTION ; IMPACT ATTRITION ; RESISTANCE ; PARTICLES ; TEMPERATURE ; BEHAVIOR
AbstractAttrition of catalyst in a fluidized bed reactor is an inevitable issue especially in a commercial unit. Methanol to olefins (MTO) is becoming one of the main stream technologies for light olefins production. The attrition of MTO catalyst, however, received little attention. This study is focused on the attrition behavior of MTO catalyst in jet cup at high temperature. The influence of test time, inlet gas velocity, and temperature on MTO catalyst attrition was studied. It is found that the Gwyn formulation can well represent the relation between attrition index and test time. Our results show that jet cup can retrieve results quantitatively comparable to high velocity gas jets method while significantly shortening test time. It is also found that the inlet gas velocity has considerable influence on the MTO catalyst attrition, and the relation between inlet gas velocities and attrition index can be described by a power index of 3.7. Similar to high velocity gas jets experiments the attrition index manifests a maximum with the increase of temperature. But the temperature corresponding to the maximum attrition index shifts from 300 degrees C in high velocity jets tests to 100 degrees C in jet cup experiments. An analysis based on SEM pictures indicates that the transition of attrition mechanism is responsible for this shift. An empirical correlation has been presented for MTO catalyst attrition in jet cup, which shows good agreement with experimental data for inlet gas velocity from 88 to 158 m/s, and temperature from 100 to 500 degrees C. (C) 2017 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000403510600009
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152187
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Natl Engn Lab MTO, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Hao, Jingai,Zhao, Yinfeng,Ye, Mao,et al. Attrition of methanol to olefins catalyst in jet cup[J]. POWDER TECHNOLOGY,2017,316:79-86.
APA Hao, Jingai,Zhao, Yinfeng,Ye, Mao,&Liu, Zhongmin.(2017).Attrition of methanol to olefins catalyst in jet cup.POWDER TECHNOLOGY,316,79-86.
MLA Hao, Jingai,et al."Attrition of methanol to olefins catalyst in jet cup".POWDER TECHNOLOGY 316(2017):79-86.
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