摘要
神华集团18万吨/年煤间接液化示范装置(以下简称"示范装置")采用预涂白土和硅藻土过滤的技术进行费托合成蜡过滤精制,在优化工艺流程和操作参数后,将预涂滤饼所需的白土/硅藻土配比确定为100∶16,过滤循环量控制在10 t/h以上,过滤循环时间控制在1.5～2 h下操作,可以使精制后的费托合成蜡铁含量降到5 mg/kg以下,满足下游加氢装置的要求。将并流流程改为串联流程后蜡精制过程更容易控制。
The running of iron removing and filtration refining unit for Fischer-tropsch wax in the Shenhua Group 180000 t/a indirect coal liquefaction pilot plant was summarized.After process and operational parameter optimization,the running results showed that if the ratio of acid-clay and diatomite was 100：16,filtration recycling quantity exceeded 10 t/h and filtration time was between 1.5~2 h,and the results were the best.After the filters were changed from parallel to series connection,the control of wax refining unit was easier.
出处
《广州化工》
CAS
2012年第20期127-129,共3页
GuangZhou Chemical Industry
关键词
费托合成蜡
预涂过滤
白土
硅藻土
Fischer-tropsch synthesis
heavy wax
precoat
filtration refining
filter cake
