Process for separating coal synthesized methane from unreacted intermediate and contaminant gases. [Patent application]

Title: Process for separating coal synthesized methane from unreacted intermediate and contaminant gases. [Patent application]

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Abstract

Gas produced from coal and containing CH/sub 4/, CO, CO/sub 2/, H/sub 2/ and H/sub 2/S is contacted with CO/sub 2/ scrub liquid to form (1) a liquid CO/sub 2/ stream containing as solutes CH/sub 4/, H/sub 2/S and minor portions of the CO and H/sub 2/, and (2) a gas stream containing CO/sub 2/ and major portions of the CO and H/sub 2/, the CO and H/sub 2/ in this stream being recycled to the means which produces gas from coal, and CO/sub 2/ in the stream being recycled to the scrub liquid. The solute-bearing liquid CO/sub 2/ stream is fractionated into (1) a liquid CO/sub 2/ stream containing CH/sub 4/ and H/sub 2/S, and (2) a H/sub 2//CO gas stream which is recycled into contact with the scrub liquid. The last-mentioned liquid CO/sub 2/ stream is fractionated into (1) a CH/sub 4//CO/sub 2/ gas stream the CO/sub 2/ of which is recycled to the scrub liquid, and (2) a liquid CO/sub 2/ stream containing H/sub 2/S, and CO/sub 2/ of this stream is also recycled to the scrub liquid.

Inventors:: Barker, R.E.; Scott, C.D.; Ryon, A.D.

Issue Date:: 1980-10-27

OSTI Identifier:: 6178168

Assignee:: Dept. of Energy TIC; ERA-06-029875; EDB-81-096236

DOE Contract Number:: W-7405-ENG-26

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 01 COAL, LIGNITE, AND PEAT; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 10 SYNTHETIC FUELS; CARBON DIOXIDE; SEPARATION PROCESSES; SOLVENT PROPERTIES; CARBON MONOXIDE; HYDROGEN; HYDROGEN SULFIDES; METHANE; PURIFICATION; ADSORPTION; COAL GASIFICATION; FRACTIONATION; SCRUBBING; ALKANES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; ELEMENTS; GASIFICATION; HYDROCARBONS; HYDROGEN COMPOUNDS; NONMETALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SORPTION; SULFIDES; SULFUR COMPOUNDS; THERMOCHEMICAL PROCESSES; 010404* - Coal, Lignite, & Peat- Gasification; 400105 - Separation Procedures; 090121 - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)

Citation Formats


                    Barker, R.E., Scott, C.D., and Ryon, A.D. Process for separating coal synthesized methane from unreacted intermediate and contaminant gases. [Patent application].  United States: N. p., 1980. 
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                    Barker, R.E., Scott, C.D., & Ryon, A.D. Process for separating coal synthesized methane from unreacted intermediate and contaminant gases. [Patent application].  United States.

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                    Barker, R.E., Scott, C.D., and Ryon, A.D. Mon .  
        "Process for separating coal synthesized methane from unreacted intermediate and contaminant gases. [Patent application]".  United States.

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@article{osti_6178168,

  title        = {Process for separating coal synthesized methane from unreacted intermediate and contaminant gases. [Patent application]},

  author       = {Barker, R.E. and Scott, C.D. and Ryon, A.D.},

  abstractNote = {Gas produced from coal and containing CH/sub 4/, CO, CO/sub 2/, H/sub 2/ and H/sub 2/S is contacted with CO/sub 2/ scrub liquid to form (1) a liquid CO/sub 2/ stream containing as solutes CH/sub 4/, H/sub 2/S and minor portions of the CO and H/sub 2/, and (2) a gas stream containing CO/sub 2/ and major portions of the CO and H/sub 2/, the CO and H/sub 2/ in this stream being recycled to the means which produces gas from coal, and CO/sub 2/ in the stream being recycled to the scrub liquid. The solute-bearing liquid CO/sub 2/ stream is fractionated into (1) a liquid CO/sub 2/ stream containing CH/sub 4/ and H/sub 2/S, and (2) a H/sub 2//CO gas stream which is recycled into contact with the scrub liquid. The last-mentioned liquid CO/sub 2/ stream is fractionated into (1) a CH/sub 4//CO/sub 2/ gas stream the CO/sub 2/ of which is recycled to the scrub liquid, and (2) a liquid CO/sub 2/ stream containing H/sub 2/S, and CO/sub 2/ of this stream is also recycled to the scrub liquid.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1980},

  month        = {10}

}

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