Invention Grant
US08226821B2 Direct coal liquefaction with integrated product hydrotreating and catalyst cascading 有权
直接煤液化与综合产品加氢处理和催化剂级联

  • Patent Title: Direct coal liquefaction with integrated product hydrotreating and catalyst cascading
  • Patent Title (中): 直接煤液化与综合产品加氢处理和催化剂级联
  • Application No.: US12583276
    Application Date: 2009-08-19
  • Publication No.: US08226821B2
    Publication Date: 2012-07-24
  • Inventor: James B MacArthurJohn E Duddy
  • Applicant: James B MacArthurJohn E Duddy
  • Main IPC: C10G1/08
  • IPC: C10G1/08 C10G1/06
Direct coal liquefaction with integrated product hydrotreating and catalyst cascading
Abstract:
A multi-stage catalytic process for the direct liquefaction of coal is utilized with a hydrotreater to first liquefy and subsequently treat the product in one integrated process. A fresh hydrogenation catalyst is used to reduce heteroatoms (S, N) from coal liquids in the downstream hydrotreater. This catalyst is then cascaded and re-used in the direct coal liquefaction process, first in the low temperature Stage 1, and then re-used in the high temperature Stage 2. Coal liquid products have very low contaminants and can be readily used to produce gasoline and diesel fuel. Catalyst requirements are substantially lowered utilizing this novel process.
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