Method for preparing desulfurized carbon from gasified slag separated refined carbon

• Main Authors: LIU MIN, LI LANTING, ZHAO PENG, LI WENBO, HUANG PENG, SUN ZHONGCHAO, KOU LIHONG
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2023
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a method for preparing desulfurized carbon from gasified slag separated refined carbon, which comprises the following steps: (1) uniformly stirring gasified slag separated refined carbon powder, lignite powder/long flame pulverized coal and anthracite powder according to a mass ratio of (65-80): (10-20): (10-15) to form mixed powder; (2) a potassium carbonate solution with the concentration of 20%, high-temperature coal tar and water are sequentially added into the mixed powder, the mass ratio of the mixed powder to the potassium carbonate solution with the concentration of 20% to the high-temperature coal tar to the water is 1: (0.25-0.5): (0.1-0.3): 0.15, uniform mixing and kneading are conducted, and coal paste is formed; and (3) forming, aging, carbonizing and activating the coal paste to obtain the desulfurized carbon. The desulfurized carbon prepared by the method disclosed by the invention has a mesoporous and microporous two-stage pore channel structure, and meanwhile, a large