Method for increasing steam decomposition in a coal gasification process

Patent · Tue Nov 22 04:00:00 EST 1988

OSTI ID:6341735

Wilson, M W

This patent describes a method for the gasification of coal in the presence of steam and a combustion supporting medium at a temperature less than about 2300/sup 0/F, comprising the steps of heating coal in a gasifier in the presence of a combustion supporting medium and steam to a temperature less than about 2300/sup 0/F and sufficient to effect gasification of the coal and thermal decomposition of a first portion of the steam for producing oxygen and hydrogen, and introducing a sufficient amount of sulfuric acid as a water splitting agent into the gasifier for the thermochemical decomposition thereof while thermally decomposing the first portion of the steam for increasing by a factor of at least two the percent of steam thermally decomposable in the gasifier without the introduction of the sulfuric acid.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4786291
• OSTI ID: 6341735
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
08 HYDROGEN
080107 -- Hydrogen-- Production-- Coal Gasification
CARBONACEOUS MATERIALS
COAL
COAL GASIFICATION
COAL GASIFICATION PLANTS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INDUSTRIAL PLANTS
INORGANIC ACIDS
MATERIALS
NONMETALS
OXYGEN
STEAM
SULFURIC ACID
THERMAL DEGRADATION
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE