The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2019
Filed:
Nov. 20, 2017
Beijing Huashi United Energy Technology and Development Co., Ltd, Beijing, CN;
Ke Lin, Beijing, CN;
Lin Li, Beijing, CN;
Lixin Guo, Beijing, CN;
Yongjun Cui, Beijing, CN;
Lilong Jiang, Beijing, CN;
Beijin Huashi United Energy Technology and Development, Beijing, CN;
Abstract
The present invention discloses a method for producing light oil through liquefying biomass. The method comprises the following steps: (1) mixing a biomass, a hydrogenation catalyst and a solvent oil to prepare a biomass slurry; (2) carrying out a first liquefaction reaction with the biomass slurry and hydrogen gas to obtain a first reaction product; (3) carrying out a second liquefaction reaction with the first reaction product and hydrogen gas to obtain a second reaction product; (4) subjecting the second reaction product to a first separation operation to produce a light component and a heavy component; (5) carrying out vacuum distillation on the heavy component to obtain a light fraction; (6) mixing the light component with the light fraction to form a mixture, carrying out a hydrogenation reaction on the mixture to obtain a hydrogenation product; and (7) subjecting the hydrogenation product to fractionation operation to obtain a light oil. The two steps of liquefaction on the biomass, followed by separation, vacuum distillation and hydrogenation reaction enable the yield of the light oil to be increased.