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:
Jun. 28, 2022
Filed:
Oct. 02, 2018
Posco Chemical Co., Ltd., Pohang-si, KR;
Dong-Min Sung, Pohang-si, KR;
Ki-Don Nam, Pohang-si, KR;
POSCO CHEMICAL CO., LTD., Pohang-si, KR;
Abstract
A method for preparing a porous carbon material by using coal tar generated in a coke oven gas (COG) process is provided. The method includes: removing quinoline insoluble (QI) by mixing tetrahydrofuran (THF) with coal tar generated in a COG purification process; distilling coal tar by adding a phenolic resin to the QI-removed coal tar, and heating the same at a temperature of 100° C. to 330° C.; carbonizing the distilled coal tar by heating the same at 350° C. to 600° C.; mixing a carbide after the carbonization step and the coal tar, which has been distilled before the carbonization, and grinding/granulating the same; mixing the ground/granulated carbide and the coal tar, which has been distilled before the carbonization, with a pore forming agent, and heat treating the same at 300° C. to 500° C.; and forming pores by making the heat treated carbon material come into contact with water vapor at 700° C. to 1000° C.