Coal gasification apparatus

Patent · Tue Jun 20 04:00:00 EDT 1978

OSTI ID:6665666

Kuenstle, K; Koch, C; Reiter, K

Coal gasification apparatus is described having a hydrogenation gasifier chamber for gasifying a portion of coal charge and a steam gasifier vessel for gasifying unconverted coal from the hydrogenation chamber with the chamber disposed above the vessel and a pressure lock interposed between the outlet of the chamber and the inlet of the vessel to permit unconverted coal to flow into the vessel and prevent gas generated therein from passing into the chamber. An oxygen inlet is provided at the lower end of the vessel for residual-oxidation of remaining coal. A heat exchanger is provided for heat exchange between hot gas leaving vessel and incoming steam. The chamber may be preceded by a steam-heated heating tank for preheating the coal under pressure and then suddenly decompressing the coal. 6 claims, 3 figures.

• Assignee: Kraftwerk Union AG
• Patent Number(s): US 4095959
• OSTI ID: 6665666
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
CRYOGENIC FLUIDS
ELEMENTS
ENERGY SOURCES
ENERGY TRANSFER
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL GAS
FUEL SYSTEMS
FUELS
GAS FUELS
GASES
GASIFICATION
HEAT TRANSFER
HYDROGEN COMPOUNDS
HYDROGENATION
LIQUID WASTES
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
STEAM
THERMOCHEMICAL PROCESSES
WASTE WATER
WASTES
WATER
WATER TREATMENT