Method for preparing activated carbon by using coking wastes as main raw material

• Main Authors: ZHANG DAKUI, WU JI, PANG KELIANG, LIU DONGJIE, CAI QIUYE, MU CHUNFENG, WANG CHAO
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2019
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention relates to a method for preparing activated carbon by using coking wastes as a main raw material. The method comprises the following steps: grinding fly ash in the coking process, mixingthe ground fly ash with tar extraction wastes, adding anthracite, water and coking coal for coking, extruding, kneading and molding the obtained mixture, and carbonizing and activating the molded mixture to obtain the activated carbon product. The coking wastes obtained after coal tar extraction and the fly ash in the coking process are used as raw materials, the viscosity of the tar extraction wastes and the high content characteristic of the fly ash in the coking process are used, and the raw materials undergo pretreatment, carbonization, waste alkali solution catalysis, flue gas activationand other processes to prepare the activated carbon, so the recycling of coking production wastes is achieved. 本发明涉及一种以焦化废弃料为主要原料制备活性炭的方法，将炼焦过程除尘灰研磨后与提焦油后废料混合，再添加无烟煤、水和炼焦用焦煤，挤压混捏成型后，再经炭化、活化处理，得到活性炭产品。本发明以提取煤焦油后的焦化废料及炼焦过程除尘灰为原