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Title: Efficient gas-separation process to upgrade dilute methane stream for use as fuel

Abstract

A membrane-based gas separation process for treating gas streams that contain methane in low concentrations. The invention involves flowing the stream to be treated across the feed side of a membrane and flowing a sweep gas stream, usually air, across the permeate side. Carbon dioxide permeates the membrane preferentially and is picked up in the sweep air stream on the permeate side; oxygen permeates in the other direction and is picked up in the methane-containing stream. The resulting residue stream is enriched in methane as well as oxygen and has an EMC value enabling it to be either flared or combusted by mixing with ordinary air.

Inventors:
 [1];  [1];  [2];  [3];  [4]
  1. Menlo Park, CA
  2. Mountain View, CA
  3. Brecksville, OH
  4. San Jose, CA
Publication Date:
Research Org.:
Membrane Technology & Research, Inc (Menlo Park, CA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1039895
Patent Number(s):
8,128,733
Application Number:
12/454,084
Assignee:
Membrane Technology & Research, Inc (Menlo Park, CA)
DOE Contract Number:  
FG02-06ER84609; FG02-07ER84819,
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS

Citation Formats

Wijmans, Johannes G, Merkel, Timothy C, Lin, Haiqing, Thompson, Scott, and Daniels, Ramin. Efficient gas-separation process to upgrade dilute methane stream for use as fuel. United States: N. p., 2012. Web.
Wijmans, Johannes G, Merkel, Timothy C, Lin, Haiqing, Thompson, Scott, & Daniels, Ramin. Efficient gas-separation process to upgrade dilute methane stream for use as fuel. United States.
Wijmans, Johannes G, Merkel, Timothy C, Lin, Haiqing, Thompson, Scott, and Daniels, Ramin. 2012. "Efficient gas-separation process to upgrade dilute methane stream for use as fuel". United States. https://www.osti.gov/servlets/purl/1039895.
@article{osti_1039895,
title = {Efficient gas-separation process to upgrade dilute methane stream for use as fuel},
author = {Wijmans, Johannes G and Merkel, Timothy C and Lin, Haiqing and Thompson, Scott and Daniels, Ramin},
abstractNote = {A membrane-based gas separation process for treating gas streams that contain methane in low concentrations. The invention involves flowing the stream to be treated across the feed side of a membrane and flowing a sweep gas stream, usually air, across the permeate side. Carbon dioxide permeates the membrane preferentially and is picked up in the sweep air stream on the permeate side; oxygen permeates in the other direction and is picked up in the methane-containing stream. The resulting residue stream is enriched in methane as well as oxygen and has an EMC value enabling it to be either flared or combusted by mixing with ordinary air.},
doi = {},
url = {https://www.osti.gov/biblio/1039895}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {3}
}