So, the effect of mineral matter was studied.After most of mineral matter of coal were removed, (removing rate 84.83%), the autocatalysis effect wakened and the coal conversion declines clearly.

• 经过酸洗后，去除了煤中大部分矿物质，脱灰率达84.；83%25，再加氢液化，自催化作用减弱，总转化率明显下降，尤其降低了煤的起始高活性；