Sulfur recovery from hot coal gas desulfurization processes. Quarterly progress report, October 15-December 31, 1984

Technical Report · Mon Apr 01 04:00:00 EST 1985

OSTI ID:5707476

O'Hara, J B; Chow, T K; Warner, R E

Recovery of sulfur in elemental form from the SO/sub 2/-containing regenerator offgas will, in general, preferably involve three processing steps. These include SO/sub 2/ concentration/purification, SO/sub 2/ reduction/sulfur production, and tail gas treating. The prime candidate processes to date have been operated at near-atmospheric pressure. Based on currently available information, including commercial experience histories, we conclude that Wellman-Lord is the most viable SO/sub 2/ concentration/purification candidate for this study. Although the assessment of the Shell/UOP copper oxide process has not been completed, we recommend that the process selection conceptual designs proceed based on the use of Wellman-Lord technology with the understanding that if the Shell/UOP or other candidate process assessment proves them to be preferred, it will replace Wellman-Lord in the final conceptual design/economic evaluation, i.e., Project Task 3. METC's agreement with this recommendation has permitted us to continue with our process selection process. We have concluded that RESOX, Allied, BSRP and Augmented Claus are the highest potential SO/sub 2/ reduction/sulfur production candidates and should be assessed in more detail as a prelude to selection of the total preferred process configuration. Some five tail gas candidates are recommended for further analysis. These include the BSR/Stretford, BSR/MDEA, BSR/Claus, BSR/Selectox and incineration/recycle to the SO/sub 2/ concentration/purification unit. We have concluded that eleven configurations consisting of combinations of technology candidates should be considered prior to selection of the preferred process configuration to be tested in the Task 2 experimental program and the Task 3 final conceptual design/economic evaluation. 70 refs., 7 figs., 13 tabs.

• Research Organization: Parsons (Ralph M.) Co., Pasadena, CA (USA)
• DOE Contract Number: AC21-84MC21097
• OSTI ID: 5707476
• Report Number(s): DOE/MC/21097-1771; ON: DE85008610
• 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
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
AMMONIA-AMMONIUM BISULFATE PROCESS
BEAVON PROCESS
BERGBAUFORSCHUNG PROCESS
CHALCOGENIDES
CHEMICAL REACTIONS
CITRATE PROCESS
CLAUS PROCESS
DESULFURIZATION
DIAGRAMS
ELEMENTS
EVALUATION
FLOWSHEETS
FLUE GAS
GASEOUS WASTES
HOT GAS CLEANUP
IGT DEHYDRODESULFURIZATION PROCESS
MAGNESIUM SLURRY SCRUBBING PROCESS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PURIFICATION
RECOVERY
REMOVAL
RESOX PROCESS
SHELL-UOP COPPER OXIDE PROCESS
STONE AND WEBSTER IONICS PROCESS
STRETFORD PROCESS
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
UCAP PROCESS
W-L SULFUR DIOXIDE RECOVERY PROCESS
WASTES