Attrition of methanol to olefins catalyst with high-velocity air jets at elevated temperature
文献类型：期刊论文
| 作者 | Hao, Jingai1,2; Zhao, Yinfeng1; Ye, Mao1; Liu, Zhongmin1 |
| 刊名 | advanced powder technology
 |
| 出版日期 | 2015-05-01 |
| 卷号 | 26期号:3页码:734-741 |
| 关键词 | Catalyst Attrition Air jet High temperature |
| 英文摘要 | the air jets method proved to be an important tool for assessing attrition propensity of fluidized bed catalyst in the laboratory, but the influence of test temperature and test time has seldom been considered. this paper focuses on the influence of test temperature and test time on the attrition mechanism of methanol to olefins (mto) catalyst in high velocity air jets. the attrition time was prolonged to 144 h in current study. it has been found that test time should be carefully chosen in order to achieve an equilibrium attrition rate. a short test time is not sufficient to understand the attrition mechanism. test temperature affects the attrition mechanism significantly. at room temperature the abrasion and fragmentation were found coexisting while at 500 degrees c the abrasion is dominant. the abrasion of mto catalyst at 500 degrees c results in a severe generation of superfine powder that is hard to capture by downstream cyclones, which is in accordance with the findings in industrial mto unit. apparently the attrition test at room temperature cannot reflect the generation of superfine powder. both test time and test temperature should be carefully considered when the air jets method is used in the attrition study in laboratory. (c) 2015 the society of powder technology japan. published by elsevier b. v. and the society of powder technology japan. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | engineering, chemical |
| 研究领域[WOS] | engineering |
| 关键词[WOS] | gas-fluidized beds ; particle attrition ; primary fragmentation ; thermal-stability ; limestone ; reactor ; size ; devolatilization ; combustion ; resistance |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000356240900006 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146333]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab MTO, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Jingai,Zhao, Yinfeng,Ye, Mao,et al. Attrition of methanol to olefins catalyst with high-velocity air jets at elevated temperature[J]. advanced powder technology,2015,26(3):734-741. |
| APA | Hao, Jingai,Zhao, Yinfeng,Ye, Mao,&Liu, Zhongmin.(2015).Attrition of methanol to olefins catalyst with high-velocity air jets at elevated temperature.advanced powder technology,26(3),734-741. |
| MLA | Hao, Jingai,et al."Attrition of methanol to olefins catalyst with high-velocity air jets at elevated temperature".advanced powder technology 26.3(2015):734-741. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。