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U.S. Department of Energy
Office of Scientific and Technical Information

Coal-gasification process and apparatus

Patent ·
OSTI ID:6720185
This patent describes a process for gasifying a carbonaceous material in a reaction chamber. It consists of taking a mixture of a finely divided carbonaceous material, free oxygen, and steam; maintaining a reactor temperature above 750/sup 0/C; simultaneously passing a suspension of the finely divided carbonaceous material and an endothermic gas-making fluid; and introducing it into said reactor in a direction and in sufficient quantity as to be maintained adjacent the whole inner surface of the reactor sidewall. The process continues forming a separating layer of said finely divided solid and gas, thereby shielding the walls of said reaction chamber from the heat radiations from the reaction zone and simultaneously preheating said finely divided carbonaceous material. The design follows by removing the gaseous reaction products from said chamber and removing the mixture of finely divided carbonaceous material and suspending gas from said chamber and reintroducing said mixture together with a free oxygen-containing gas into said chamber through the reactant inlet port for conversion into gaseous products.
Assignee:
Phillips Petroleum Co., DE
Patent Number(s):
US 2572829
OSTI ID:
6720185
Country of Publication:
United States
Language:
English