Method for removing HCL and HF from coal derived fuel gas

Patent · Tue Jun 02 00:00:00 EDT 1992

OSTI ID:7051473

Cook, C; Gal, E

This patent describes a process stream for removing sulfur compounds from a hot coal derived fuel gas stream containing H{sub 2}S, COS, HCl and HF upstream of a power plant. This patent describes improvement in introducing a sorbent material at a location and in an amount effective to break down at least the HCl and HF constituents into solid salts and gaseous CO{sub 2} and H{sub 2}O at least partially concurrently with the removal of the sulfur compounds; and removing the solid salts from the stream.

• Assignee: General Electric Environmental Service, Inc., Lebanon, PA (United States)
• Patent Number(s): A; US 5118480
• Application Number: PPN: US 7-543131
• OSTI ID: 7051473
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COAL GAS
CONTROL
DESULFURIZATION
FLUIDS
FLUORINE COMPOUNDS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
GASES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
POLLUTION CONTROL
POWER PLANTS
PYROLYSIS PRODUCTS
SORBENT INJECTION PROCESSES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
WASTES