Research on Improving Low Rank Coal Caking Ability by Hydrogenation

The experiment of improving low rank coal caking ability was carried out in an autoclave within a temperature of (623 to 673)K and a initial pressure of (3 to 6) MPa, the heat time range is 30-50 min, the results indicated that: according to moderate hydrogenation low rank coal which is none caking ability can converse to product with high caking ability, the oxygen function group in the raw coal was better removed, and the heat of the product was improved. the products were blended with coal and the result proved it can be useful in the coking industry.