公开(公告)号：US11981867B2

公开(公告)日：2024-05-14

申请号：US18197871

申请日：2023-05-16

申请人： Yan'an University

发明人： Zhuangzhuang Zhang ,  Feng Fu ,  Zhiping Mi ,  Yanzhong Zhen ,  Jie Gu ,  Xiaoxia Yang ,  Le Wang ,  Xiaoli Qiu

IPC分类号： C10B53/04 ,  C10B49/06 ,  C10B57/10 ,  C10B57/14

CPC分类号： C10B53/04 ,  C10B49/06 ,  C10B57/10 ,  C10B57/14

摘要： The present disclosure relates to the technical field of pyrolysis and improvement of caking middling coals, in particular to a low temperature pyrolysis method of a caking middling coal. The present disclosure provides a low temperature pyrolysis method of a caking middling coal, including the following steps: conveying the caking middling coal into a pyrolysis reactor through a top of the pyrolysis reactor; dividing a reaction chamber of the pyrolysis reactor into a drying section, a softening section, a melting and depolymerization section, a solidification section, and a cooling section by means of multi-channel gas distribution; and conducting zoned temperature control-based pyrolysis to obtain semi-coke at a bottom of the reactor as well as tar and coal gas at the top of the reactor. The pyrolysis method can well avoid caking and swelling of the caking middling coal during pyrolysis.