Method for hydrogenating a solvent-refined coal
Method for hydrogenating a solvent-refined coal
Method of liquefying coal
Method of refining coal by catalyzed short residence time hydrod
Process and catalysts for hydroconversion of coal or petroleum a
Process for thermal cracking of carbonaceous substances which in
Progressive flow cracking of coal/oil mixtures with high metals
Two-stage co-processing of coal/oil feedstocks