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Title: Solvent extraction of methane from simulated geopressured-geothermal fluids: sub-pilot test results

Abstract

The extraction of methane dissolved in 15 wt % sodium chloride solution at 150/sup 0/C and 1000 psi has been demonstrated using n-hexadecane as the solvent in a sub-pilot scale extraction column operated in a continuous, countercurrent flow mode. Greater than 90% recovery of methane was obtained with solvent/brine mass flow ratios in the range of .040 to .045. The height of an ideal stage in this experimental Elgin-type spray column is estimated to be 1.5 ft. Application of this process on actual geopressured fluids is technically feasible, and when combined with direct drive injection disposal is economically attractive. Design and operation of a methane saturated-brine supply system to provide simulated geopressured fluid continuously at 150/sup 0/C and 1000 psi are also described.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
OSTI Identifier:
5716926
Report Number(s):
UCID-19291
ON: DE82010992
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; 03 NATURAL GAS; GEOTHERMAL FLUIDS; SIMULATION; METHANE; SOLVENT EXTRACTION; AQUEOUS SOLUTIONS; BRINES; GEOPRESSURED SYSTEMS; HEATERS; HEXADECANE; PUMPS; RECOVERY; SAMPLING; SODIUM CHLORIDES; SOLUBILITY; ALKALI METAL COMPOUNDS; ALKANES; CHLORIDES; CHLORINE COMPOUNDS; DISPERSIONS; ENERGY SYSTEMS; EXTRACTION; FLUIDS; HALIDES; HALOGEN COMPOUNDS; HYDROCARBONS; MIXTURES; ORGANIC COMPOUNDS; SEPARATION PROCESSES; SODIUM COMPOUNDS; SOLUTIONS; Geothermal Legacy; 152001* - Geothermal Data & Theory- Properties of Aqueous Solutions; 030300 - Natural Gas- Drilling, Production, & Processing

Citation Formats

Quong, R., Otsuki, H.H., and Locke, F.E. Solvent extraction of methane from simulated geopressured-geothermal fluids: sub-pilot test results. United States: N. p., 1982. Web. doi:10.2172/5716926.
Quong, R., Otsuki, H.H., & Locke, F.E. Solvent extraction of methane from simulated geopressured-geothermal fluids: sub-pilot test results. United States. doi:10.2172/5716926.
Quong, R., Otsuki, H.H., and Locke, F.E. Thu . "Solvent extraction of methane from simulated geopressured-geothermal fluids: sub-pilot test results". United States. doi:10.2172/5716926. https://www.osti.gov/servlets/purl/5716926.
@article{osti_5716926,
title = {Solvent extraction of methane from simulated geopressured-geothermal fluids: sub-pilot test results},
author = {Quong, R. and Otsuki, H.H. and Locke, F.E.},
abstractNote = {The extraction of methane dissolved in 15 wt % sodium chloride solution at 150/sup 0/C and 1000 psi has been demonstrated using n-hexadecane as the solvent in a sub-pilot scale extraction column operated in a continuous, countercurrent flow mode. Greater than 90% recovery of methane was obtained with solvent/brine mass flow ratios in the range of .040 to .045. The height of an ideal stage in this experimental Elgin-type spray column is estimated to be 1.5 ft. Application of this process on actual geopressured fluids is technically feasible, and when combined with direct drive injection disposal is economically attractive. Design and operation of a methane saturated-brine supply system to provide simulated geopressured fluid continuously at 150/sup 0/C and 1000 psi are also described.},
doi = {10.2172/5716926},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}