Sulfur recovery from hot coal gas desulfurization processes: Final report

Technical Report · Wed Apr 01 04:00:00 EST 1987

OSTI ID:6485613

O'Hara, J B; Chow, T K; Findley, J E

This report summarizes work to define preferred procedures and economics for producing elemental sulfur from the sulfur dioxide (SO/sub 2/) contained in the Hot Gas Desulfurizer System Regenerator offgas. The SO/sub 2/ concentration in the regenerator offgas can range from 1.5 to 5.0 volume percent. Three types of processing units were considered for treating the regenerator offgas, including (1) SO/sub 2/ concentration/purification (C/P), (2) SO/sub 2/ reduction/sulfur production (R/P), and (3) tail gas treatment to ensure meeting environmental emission standards. The SO/sub 2/ C/P unit will significantly increase the SO/sub 2/ concentration and reject impurities. Eleven SO/sub 2/ C/P, 6 R/P and 5 tail gas technologies were investigated, offering 300-plus possible combinations for complexes using the three cited process functions. Each of the 11 candidate configurations was independently rated by three professional designers/evaluators and the assigned points totaled. Based on these results, the recommended configuration for experimental testing consisted of a Wellman-Lord SO/sub 2/ C/P unit, an Augmented Claus unit and tail gas treatment by thermal incineration of the Claus tail gas followed by its recycle to the Wellman-Lord unit. The alternative BSRP configuration was also judged to have high potential. A BSRP plant consists of a Beavon Sulfur Removal (BSR) unit to convert all sulfur compounds to hydrogen sulfide (H/sub 2/S) followed by a Stretford unit to convert the H/sub 2/S to elemental sulfur. The Augmented Claus and BSRP have been judged to be preferred processes and projected processing costs for these technologies have been estimated. Further process optimization promises improved economics. 9 refs., 22 figs., 34 tabs.

• Research Organization: Parsons (Ralph M.) Co., Pasadena, CA (USA)
• DOE Contract Number: AC21-84MC21097
• OSTI ID: 6485613
• Report Number(s): DOE/MC/21097-2338; ON: DE87006477
• 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
ALKALI METAL COMPOUNDS
ALLOYS
AMMONIA-AMMONIUM BISULFATE PROCESS
BEAVON PROCESS
BERGBAUFORSCHUNG-FOSTER WHEELER PROCESS
CAPITALIZED COST
CARBON COMPOUNDS
CARBON OXYSULFIDE
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CITRATE PROCESS
CLAUS PROCESS
COMBUSTION
COMPARATIVE EVALUATIONS
CORROSION RESISTANT ALLOYS
COST
DATA ANALYSIS
DESIGN
DESULFURIZATION
DIAGRAMS
DIRECT ENERGY CONVERTERS
ECONOMIC ANALYSIS
ECONOMICS
ELECTROCHEMICAL CELLS
ELEMENTS
ENERGY BALANCE
ENRICHMENT
EQUILIBRIUM
EXPERIMENT PLANNING
FERRIMAGNETIC MATERIALS
FERRITES
FLOWSHEETS
FLUIDS
FUEL CELLS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH-TEMPERATURE FUEL CELLS
HOT GAS CLEANUP
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IONICS ELECTROLYTIC REGENERATION PROCESS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
LUCAS PROCESS
MACHINERY
MAGNESIUM SLURRY SCRUBBING PROCESS
MAGNETIC MATERIALS
MATERIAL BALANCE
MATERIALS
MATHEMATICS
MIXING
MOLTEN CARBONATE FUEL CELLS
MORGANTOWN ENERGY TECHNOLOGY CENTER
NATIONAL ORGANIZATIONS
NICKEL ALLOYS
NONMETALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PLANNING
PURIFICATION
RECOVERY
RECYCLING
REDUCTION
REGENERATION
REGRESSION ANALYSIS
REMOVAL
RESOX PROCESS
SHELL-UOP COPPER OXIDE PROCESS
STAINLESS STEEL-310
STAINLESS STEELS
STATISTICS
STEELS
STRETFORD PROCESS
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
TRACE AMOUNTS
TRANSITION ELEMENT COMPOUNDS
TURBINES
TURBOMACHINERY
UCAP PROCESS
US DOE
US ORGANIZATIONS
W-L SULFUR DIOXIDE RECOVERY PROCESS
ZINC COMPOUNDS