Method for converting lower grade uintaite to higher grade mater
Method for extracting oil from oil-contaminated soil
Method for increasing liquid yields from short residence time hy
Method for refining coal utilizing short residence time hydrocra
Method for solubilization of low-rank coal using low molecular w
Method for the exploitation of oil shales
Method for treating shale
Method of producing combustible products from heavy fuel...
Method of recovering hydrocarbon from oil shale
Method of refining coal by hydrodisproportionation
Method of refining coal by short residence time hydrodisproporti
Method of refining coal by short residence time partial liquefac