CNG acid-gas-removal process. Technical progress report 4 for the period 1 August 1981-31 October 1981

Technical Report · Tue Dec 01 00:00:00 EST 1981

OSTI ID:6830099

Adler, R J; Auyang, L; Brown, W R; Cook, W J; Keyvani, M; Liu, Y C

Four tasks were active: design and construction of a bench-scale triple-point crystallizer; equilibrium data acquisition, crystallizer separation factors for several sulfur-containing molecules and trace contaminants, and slurry pumping. A new design for the CNG crystallizer has been completed. A control scheme was devised for the new design. Equipment sizing, selection, and procurement is in progress. Equilibrium data acquisition has been completed. Five component vapor-liquid equilibrium data for gas mixtures representative of BCR Bi-Gas and Exxon catalytic gasifier crude gases were measured. The experimental data agree very well with the equilibrium data estimated by computer calculations. Separation factors were determined for the binary systems carbon dioxide/hydrogen sulfide, carbon dioxide/carbonyl sulfide, carbon dioxide/ethane, carbon dioxide/ethylene, and carbon dioxide/methyl mercaptan. For each system, sharp separation was observed in one stage of crystallization. In the slurry pumping project the height of liquid leg between the free flashing surface and the pump centerline is being varied to determine the minimum suction head needed for pumping slurry. The pump in current use is a MICROPUMP gear pump.

• Research Organization: Helipump Corp., Cleveland, OH (USA)
• DOE Contract Number: AC21-80MC14399
• OSTI ID: 6830099
• Report Number(s): DOE/MC/14399-T3; ON: DE82022218
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CARBON DIOXIDE
CRYSTALLIZATION
REMOVAL
FUEL GAS
PURIFICATION
GASES
SEPARATION PROCESSES
HYDROGEN SULFIDES
BI-GAS PROCESS
CARBON OXYSULFIDE
COAL GASIFICATION
DEW POINT
EQUILIBRIUM
ETHANE
ETHYLENE
EXXON GASIFICATION PROCESS
GAS CHROMATOGRAPHY
LIQUIDS
PUMPS
SLURRIES
SOLIDS
VAPORS
ALKANES
ALKENES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHROMATOGRAPHY
DISPERSIONS
FLUIDS
FUELS
GAS FUELS
GASIFICATION
HYDROCARBONS
HYDROGEN COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SULFIDES
SULFUR COMPOUNDS
SUSPENSIONS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification