6000 tpd SRC-I Demonstration Plant gas systems. Design baseline package, Volume 8. [DEA process]

Technical Report · Thu Jan 27 04:00:00 EST 1983

OSTI ID:6397809

Volume 8 contains the design of the fuel gas desulfurization process (DEA) and of the liquefied petroleum gases (LPG) section of the plant. The removal of acid gases is accomplished by intimately contacting the feed stream with the descending DEA solution. A partially regenerated semi-lean DEA solution is fed to an intermediate tray of the column for the bulk removal of H/sub 2/S and CO/sub 2/ while a fully regenerated lean DEA solution is fed at the top tray for the removal of the remaining acid gases in the top section of the absorber. The lean solution stream temperature is maintained at 10 to 15/sup 0/F above the absorber feed gas temperature to prevent hydrocarbon condensation in the column with consequent foaming and flooding of the column. The overhead gas (Stream 6305) leaving the H.P. DEA absorber is cooled and passed through the Sweet Gas K.O. Drum (bottom section of V-15305) to separate any condensate. The gas leaving the drum is further contacted with a 3 weight percent caustic solution in the bottom section of the Treated Gas Wash Column (T-15303) for removal of residual acid gases in order to comply with the sweet gas specifications of 1 ppMv H/sub 2/S and 10 ppMv CO/sub 2/. The LPG Recovery Unit is designed to process 15.95 MMSCFD of low pressure fuel reject gas from the HPU to recover approximately 60 percent of the propane and most of the heavier hydrocarbons. The recovered hydrocarbons are produced as liquefied petroleum gas (LPG) product. Specifications for the LPG product are: (1) Ethane/Propane (Vol/Vol) 0.02; and (2) LPG product should meet GPA Publication 2140-77 Commercial B-P mixture specifications.

• Research Organization: International Coal Refining Co., Allentown, PA (USA); Parsons (Ralph M.) Co., Pasadena, CA (USA)
• DOE Contract Number: AC05-78OR03054
• OSTI ID: 6397809
• Report Number(s): DOE/OR/03054-T27-Vol.8; ON: DE85001218
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AMMONIA
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COAL LIQUEFACTION
DEMONSTRATION PLANTS
DESIGN
DESULFURIZATION
ELEMENTS
ENGINEERING
EQUIPMENT
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDRIDES
HYDROGEN COMPOUNDS
LIQUEFACTION
LIQUEFIED GASES
LIQUEFIED PETROLEUM GASES
LIQUIDS
NATURAL GAS LIQUIDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PETROLEUM PRODUCTS
PURIFICATION
RECOVERY
REGENERATION
REMOVAL
SPECIFICATIONS
SRC PROCESS
SULFUR
THERMOCHEMICAL PROCESSES