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Study On A Water-soluble Catalyst For Slurry-phase Hydrocrackingof An Atmospheric Residue

机译:一种常压渣油浆相加氢裂化的水溶性催化剂的研究

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摘要

The slurry-phase hydrocracking of Karamay atmospheric residue (AR) with water-soluble dispersed catalyst was studied, and the catalyst after being separated from the reaction products was analyzed using laser Raman spectroscopy (LRS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) to identify the crystal structure of the catalyst. In this paper, the catalytic functions of molybdenum, nickel, and iron were studied respectively during the slurry-phase hydrocracking while using diphenylmethane as the model compound and AR from Karamay crude as the feedstock. The test results showed that, during the slurry-phase hydrocracking of heavy oil, the metal sulfides entered into chemical reactions with the free-radical intermediate H· formed on the catalyst surface. The free-radical intermediate H· formed on the catalyst surface could react with the free radicals of large molecules and could suppress coke deposition.
机译:研究了水溶性分散催化剂对克拉玛依大气残余物(AR)的淤浆相加氢裂化,分离了反应产物后的催化剂,采用激光拉曼光谱(LRS),X射线衍射(XRD)和X射线光电子能谱(XPS)来识别催化剂的晶体结构。本文以二苯基甲烷为模型化合物,以克拉玛依原油为原料,以AR为原料,分别研究了钼,镍和铁在淤浆相加氢裂化过程中的催化作用。试验结果表明,在重油的淤浆相加氢裂化过程中,金属硫化物与催化剂表面形成的自由基中间体H·发生化学反应。在催化剂表面形成的自由基中间体H·可以与大分子的自由基反应,并抑制焦炭沉积。

著录项

  • 来源
    《Energy & fuels》 |2009年第1期|p.958-961|共4页
  • 作者单位

    State Key Laboratory for Heavy Oil Processing, China University of Petroleum, Dongying 257061, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TK-;
  • 关键词

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