Abstract: Disclosed herein is a method for preparing coal-based, briquetted activated carbon. The method includes subjecting raw coal to a briquetting process, pulverizing the briquettes into particles, and performing carbonization and activation to obtain activated carbon. The briquetting process includes pulverizing raw coal to produce a feed, feeding the feed into a feed bin for degassing, adjusting the temperature and the water content of the feed in the feed bin, and feeding the feed in the feed bin into a briquetting apparatus for briquetting to form coal briquettes. The raw coal briquetting process of the preparation method is suited to a wide variety of coal, including non-caking coal. The preparation method yields a coal briquette product with a strength greater than 89% without any binder, which is beneficial to improve the strength and the like of activated carbon.
Type:
Grant
Filed:
January 26, 2017
Date of Patent:
September 15, 2020
Assignees:
CHINA ENERGY INVESTMENT CORPORATION LIMITED, SHENHUA XINJIANG ENERGY CO, LTD.
Inventors:
Jianqiang Chen, Xintian Xu, Long Zhao, Hongqiang Wang, Xiaolin Han, Xiaodong Lu, Tao Qi, Wei Zhuang, Jin Li, Liangliang Wu, Jianrui Li, Cheng Wang