화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.26, 202-209, June, 2015
DOI10.1016/j.jiec.2014.11.030  Export Citation
Exothermic effects and related surface properties of the ex situ presulfurized catalysts in fabrication and activation
Yulan Gao1, 2, Xiangchen Fang1, 2, †, Zhenmin Cheng1, 3, Liming Xu2, Zhenhui Lu2, and Shanda Wang4
  • 1School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
  • 2Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC, 31 Dandong Road, Fushun 113001, China
  • 3, China
  • 4Loughborough University, Loughborough LE11 3TU, Leicestershire, UK
E-mail:
An ex-situ presulfurization technology for transforming the metal oxides of hydrotreating catalyst to the corresponding metal oxy-sulfides was developed, involving pre-dispersion of an organo-nitrogen substance onto catalyst and a subsequent multi-step heat treatment. The inherence of exothermic effect involved in the ex situ pre-sulfurized catalyst fabrication and activation, and particularly the relationship between the exothermic effect and the surface property of catalyst were investigated. The results indicated that both the preparation parameters and the operating conditions can have effects on the exothermic behavior and surface state of the catalyst. The information obtained in the current study is useful for optimizing the EPRES process, essential for hydrotreating catalyst and its application.
Keywords:Ex-situ;Presulfurization;Multi-step heat treatment;Exothermic effect;Surface property
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