公开(公告)号：US4541913A

公开(公告)日：1985-09-17

申请号：US433519

申请日：1982-10-08

申请人： Donald B. Urquhart ,  Stephen A. Moore

发明人： Donald B. Urquhart ,  Stephen A. Moore

IPC分类号： C10G1/04 ,  C10G1/00 ,  C10G1/08

CPC分类号： C10G1/002 ,  Y10S208/952

摘要： The present invention relates to a process for hydrocracking SGE of carbonaceous material to produce light distillate, including chemical feedstocks and transport fuels.A mixture of crushed coal and a solvent is fed to an extractor 1 wherein the solvent is heated and pressurized to form a supercritical gas. Carbonaceous material is extracted from the coal into the gas. The unextracted coal, including ash and some carbonaceous material, is separated from the SGE in solution in the supercritical solvent in a separation stage 2. The SGE in the solvent is maintained in the supercritical state and fed to a hydrocracking stage 3 wherein it is mixed with excess hydrogen. After hydrocracking, the SGE in supercritical solution is passed through a pressure let-down valve 4 to a distillation stage 5 wherein the product of the hydrocracking stage 3 is separated into gases, solvent for recycling, light distillate and material boiling above 350.degree. C. The light distillate may be further treated to produce transport fuels.

摘要翻译： 本发明涉及一种用于加氢裂化碳质材料的SGE以产生轻质馏出物的方法，包括化学原料和运输燃料。 将碎煤和溶剂的混合物进料到萃取器1中，其中将溶剂加热和加压以形成超临界气体。 碳质材料从煤中提取到气体中。 未分离的煤，包括灰分和一些含碳材料，在分离阶段2中，在超临界溶剂中，从SGE溶液中分离出来。溶剂中的SGE保持在超临界状态，并进料至混合的加氢裂化阶段3 与过量的氢气。 加氢裂化后，超临界溶液中的SGE通过压力降压阀4进入蒸馏阶段5，其中加氢裂化阶段3的产物被分离成气体，再循环溶剂，轻馏分和沸点高于350℃的材料。 轻馏分物可以进一步处理以产生运输燃料。