METC integrated bench scale gasification and hot gas cleanup studies

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:7152476

Rockey, J M; Kanosky, J P ^[1]; Rutten, J ^[2]

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1. USDOE Morgantown Energy Technology Center, WV (United States)
2. EG and G Washington Analytical Services Center, Inc., Morgantown, WV (United States)

The cleanup test section consists of a closely coupled modular gas cleanup rig (MGCR) which was acquired from The Institute of Gas Technology. The MGCR receives coal-derived gas at 425 psig and 1,000[degrees]F from the METC Fluid-Bed Gasifier. The gas pressure is reduced to approximately 300 psia, reheated to 1,200[degrees]F, and filtered by a candle filter vessel containing up to four filter cartridges. For batch-mode test operations, the filtered coal gas is fed into a 6-inch ID, fluid-bed reactor that is preloaded with desulfurization sorbent. Batch-mode sulfidation tests demonstrated that the prospects for developing an effective fluid-bed hot-gas desulfurization system are promising, since H[sub 2]S removal of greater than 99 percent was consistently shown with sorbent utilization up to 25 percent. Conversely, the regeneration conducted in the batch mode MGCR was not useful because the regeneration occurs too quickly, and thus process concerns cannot be suitably evaluated in the batch fluid-bed mode reactor. Pursuant to batch mode tests, the gas cleanup system is being modified to incorporate a reactor in parallel with the batch reactor so that solids can be fed into and withdrawn from the reactor without impacting batch mode operation in the meantime. The new reactor setup which allows for through-flow of solid sorbent during operation is also being designed to operate using smaller (70--150 micron) particles in addition to the larger (200--300 micron) particles used in prior tests.

• Research Organization: USDOE Morgantown Energy Technology Center, WV (United States); EG and G Washington Analytical Services Center, Inc., Morgantown, WV (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC21-90MC26328
• OSTI ID: 7152476
• Report Number(s): DOE/METC/C-93/7040; CONF-920951--8; ON: DE93002395
• 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
ADSORPTION
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL GASIFICATION
DESULFURIZATION
FLUIDIZED BEDS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HOT GAS CLEANUP
PURIFICATION
REGENERATION
SORPTION
SULFIDATION
THERMOCHEMICAL PROCESSES