The Influence Of Ultra-fine Grinding For Hydrogen Supplied Reaction Of Direct Coal Liquefaction

Chose proper technological conditions by analyzing the results of ultra-fine grinding experiments.Research the influence of using superfine pulverized coal as material in direct coal liquefaction. Use infrared spectrum to analyze the changes in the chemical structure of Qingshuiying coal and the results from the tests of particle size distribution, SEM and conversion distribution show that oxidoreduction and aggregation restrict the performance of superfine pulverized coal. The designed experiment could promote the hydrogenation reaction in direct coal liquefaction through combining the processes of the hydrogenation reaction and ultra-fine grinding to well exploit the property of superfine coal and the mechanochemistry brought out in ultra-fine grinding, which provides new solution of improving the conversion and lower the requirements of direct coal liquefaction.