Development Work for an Advanced Coal Gasification System for Electric Power Generation from Coal Directed Toward a Commercial Gasification Generating Plant: Phase II. Design Report, Volume 5. Section 300 – Sulfur Removal

Technical Report · Sat Jul 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/6729619· OSTI ID:6729619

This portion of the Design Report covers Section 300--Sulfur Removal of the Coal Gasification/Combined Cycle Pilot Plant. This unit is designed for the selective removal of sulfur-bearing compounds and ammonia from the low-Btu gas product before it is burned in the gas turbine. The major components of the system are: Acid gas absorber, low-pressure flash drum, recycle compressor, solvent stripper, solvent heat exchanger, and solvent chiller and refrigeration system. The proprietary Allied Chemical Corporation's Selexol System was chosen after consideration of a wide range of processes because it has high selectivity for the removal of sulfur compounds over carbon dioxide so that: Maximum carbon dioxide is retained in the low-Btu gas to yield power via expansion in the gas turbine; the acid gas stream to sulfur recovery will have maximum sulfur concentration to benefit Claus unit cost and efficiency; it will remove carbonyl sulfide and ammonia; and it is relatively inexpensive. In addition, it uses a nontoxic and noncorrosive solvent, which allows the unit to be built of carbon steel. The process design for this unit is based upon a design package received from Allied Chemical that included solvent circulation rates, product streams, heat balances, and tower sizes.

• Research Organization: Foster Wheeler Energy Corporation, Livingston, NJ (United States)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: EX-76-C-01-1521
• OSTI ID: 6729619
• Report Number(s): FE-1521-24
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010404 -- Coal
Lignite
& Peat-- Gasification
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AMMONIA
CHEMICAL COMPOSITION
COAL GASIFICATION
COMBINED-CYCLE FW PROCESS
COMBINED-CYCLE POWER PLANTS
DESIGN
ELEMENTS
ENERGY SOURCES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
GASIFICATION
HYDRIDES
HYDROGEN COMPOUNDS
LOW BTU GAS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
POWER PLANTS
PURIFICATION
REMOVAL
SELEXOL PROCESS
SULFUR
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY