Investigation of processes to treat zinc-ferrite regeneration offgases in high temperature desulfurization of coal gases

Technical Report · Mon Aug 01 00:00:00 EDT 1988

DOI:https://doi.org/10.2172/7015259· OSTI ID:7015259

Woodland, L. R.

A bench-scale test program has been performed to evaluate the effect of critical operating variables on sulfur dioxide removal efficiency for two candidate throwaway'' desulfurization processes for treating zinc-ferrite reactor regeneration offgas. These two throwaway'' processes, dual-alkali wet scrubbing and spray dryer desulfurization, generate a gypsum waste sludge environmentally acceptable for disposal. They have seen extensive commercial application in flue gas desulfurization, but have not been evaluated for such high levels of removal efficiency and such high inlet sulfur dioxide concentrations as would be required for this application. 13 figs., 15 tabs.

• Research Organization: Little (Arthur D.), Inc., Cambridge, MA (United States)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: AC21-86MC23086
• OSTI ID: 7015259
• Report Number(s): DOE/MC/23086-2798; ON: DE90000460
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL GASIFICATION
HOT GAS CLEANUP
SCRUBBING
COMPARATIVE EVALUATIONS
SPRAY DRYING
BENCH-SCALE EXPERIMENTS
CAPITALIZED COST
CHEMICAL REACTORS
DESULFURIZATION
FERRITES
FLUE GAS
PROGRESS REPORT
REGRESSION ANALYSIS
SULFUR DIOXIDE
ZINC COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
COST
DOCUMENT TYPES
DRYING
FERRIMAGNETIC MATERIALS
GASEOUS WASTES
GASIFICATION
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MATHEMATICS
OXIDES
OXYGEN COMPOUNDS
PURIFICATION
STATISTICS
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTES
010404* - Coal
Lignite
& Peat- Gasification
010800 - Coal
Lignite
& Peat- Waste Management