催化裂化催化劑機械強度與磨損行為

吳俊升; 李曉剛; 公銘揚; 張志華

doi:10.13374/j.issn1001-053x.2010.01.005

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催化裂化催化劑機械強度與磨損行為

doi: 10.13374/j.issn1001-053x.2010.01.005

1. 北京科技大學新材料技術研究院, 北京 100083;
2. 中國石油大慶化工研究中心, 大慶 163714

基金項目:

中國石油天然氣股份有限公司超前共性項目（No.W050508-03-01）；北京市教育委員會共建項目（No.SYS100080419）

詳細信息

作者簡介:
吳俊升(1976-),男,博士,副教授,E-mail:wujs76@163.com

中圖分類號: TH117.1
計量
- 文章訪問數: 297
- HTML全文瀏覽量: 85
- PDF下載量: 9
- 被引次數: 0
出版歷程
- 收稿日期: 2009-06-15

Mechanical properties and attrition behavior of fluid catalytic cracking catalysts

1. Advanced Material&Technology Institute, University of Science and Technology Beijing, Beijing 100083, China;
2. PetroChina Daqing Research Center of Chemical Engineering, Daqing 163714, China

摘要

摘要: 通過納米壓痕和顯微硬度等測試方法,基于納米和微米兩種尺度,分析研究了兩種流化催化裂化(FCC)催化劑的機械強度,并在實驗室采用噴杯式流化磨損方法,考察了兩種抗磨損性能差異較大的FCC催化劑的磨損規律.從壓痕力學測試、微觀形貌分析、磨損率評價和顆粒粒度分布等方面研究了兩種FCC催化劑在氣態流化床中的磨損機制,了解顆粒自身性質對其磨損行為的影響作用.結果表明,催化劑磨損的發展過程符合Gwyn磨損動力學方程,兩種催化劑顆粒磨損規律的差別可由Gwyn方程的各參數來描述.
- 流化催化裂化催化劑 /
- 流化床 /
- 機械強度 /
- 磨損
Abstract: The attrition of two different fluid catalytic cracking(FCC) catalysts was investigated by laboratory-scale jet-cup test.The mechanical properties of the catalyst particles were evaluated by nano-indentation test and conventional microhardness test based on the nano-and the micro-length scales.The attrition mechanism of the catalyst particles in a gas fluidized bed was analyzed in terms of indentation testing,morphology characterization,attrition rate evaluation and particle size distribution analysis.The influences of material characteristic properties on the particle attrition were mainly discussed.The results show that the attrition of the catalyst particles follows Gwyn's kinetic model and the difference of attrition mechanisms of various catalyst particles can be categorized with the parameters of the Gwyn equation.
- fluid catalytic cracking catalyst /
- fluidized bed /
- mechanical strength /
- attrition