Handling of solids-laden hydrocarbonaceous bottoms in a retort u
Hot sand-coal-cracking to hydrodistillate fuels
Hydrocarbon production by free fall countercurrent flow hydrocon
Hydrocarbon treatment process
Hydrogen donor solvent coal liquefaction process
Hydrogen donor solvent extraction of coal
Hydrogen transfer solvent extraction of coal
Hydrogenation of carbonaceous materials
Hydrogenation of coal
Hydrogenation of coal to produce coke, pitch and electrode carbo
Hydrogenation process for solid carbonaceous feed materials usin
Hydrogenative treatment of coal
Hydropyrolysis of carbonaceous material
Hydrothermal pretreatment to prevent scale during liquefaction o