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Title: Production of High-Purity O 2 via Membrane Contactor with Oxygen Carrier Solutions (Final Report)

Abstract

Under the current research program, Gas Technology Institute (GTI) and University of South Carolina (USC) have been developing a bio-mimetic technology to produce greater than 95% purity oxygen from air via a hollow fiber membrane contactor (HFMC) with oxygen carrier solutions as the solvent. Low-cost poly (ethyleneimine)-cobalt (PEI-Co) complex solutions have been developed as the oxygen solvent. The PEI-Co complex with PEI/Co ratio of 10 was selected as the O 2 carrier solution for demonstrating O 2 separation performance in the membrane contactor due to its high O 2 capacity (1.1 L O 2 (STP)/L solution), fast uptake kinetics, and moderate viscosity (2.3 mPa∙s). In a membrane absorption test, the air was fed to the bore side of a hollow fiber membrane module whereas the PEI-Co solution was added to the shell side. A N 2 concentration as high as 99.4 vol% was observed in the outlet of the feed gas, indicating the majority of the O 2 was absorbed by the O 2 solvent. In integrated membrane absorption/desorption tests, vacuum and argon sweeps were used to achieve a high purity of oxygen. With the argon sweep approach, an O 2 concentration greater than 99.6% was observed in the desorbedmore » gas stream on an argon-free basis. Overall, this proof-of-concept technology development has been successful as we have met all of the project milestones.« less

Authors:
 [1];  [2]
  1. Gas Technology Institute (GTI), Des Plaines, IL (United States)
  2. Univ. of South Carolina, Columbia, SC (United States)
Publication Date:
Research Org.:
Gas Technology Institute (GTI), Des Plaines, IL (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1512037
Report Number(s):
DOE-GTI-FE0024080
DOE Contract Number:  
FE0024080
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; air separation; membrane contactor; oxygen production

Citation Formats

Li, Shiguang, and Yu, Miao. Production of High-Purity O2 via Membrane Contactor with Oxygen Carrier Solutions (Final Report). United States: N. p., 2017. Web. doi:10.2172/1512037.
Li, Shiguang, & Yu, Miao. Production of High-Purity O2 via Membrane Contactor with Oxygen Carrier Solutions (Final Report). United States. doi:10.2172/1512037.
Li, Shiguang, and Yu, Miao. Thu . "Production of High-Purity O2 via Membrane Contactor with Oxygen Carrier Solutions (Final Report)". United States. doi:10.2172/1512037. https://www.osti.gov/servlets/purl/1512037.
@article{osti_1512037,
title = {Production of High-Purity O2 via Membrane Contactor with Oxygen Carrier Solutions (Final Report)},
author = {Li, Shiguang and Yu, Miao},
abstractNote = {Under the current research program, Gas Technology Institute (GTI) and University of South Carolina (USC) have been developing a bio-mimetic technology to produce greater than 95% purity oxygen from air via a hollow fiber membrane contactor (HFMC) with oxygen carrier solutions as the solvent. Low-cost poly (ethyleneimine)-cobalt (PEI-Co) complex solutions have been developed as the oxygen solvent. The PEI-Co complex with PEI/Co ratio of 10 was selected as the O2 carrier solution for demonstrating O2 separation performance in the membrane contactor due to its high O2 capacity (1.1 L O2 (STP)/L solution), fast uptake kinetics, and moderate viscosity (2.3 mPa∙s). In a membrane absorption test, the air was fed to the bore side of a hollow fiber membrane module whereas the PEI-Co solution was added to the shell side. A N2 concentration as high as 99.4 vol% was observed in the outlet of the feed gas, indicating the majority of the O2 was absorbed by the O2 solvent. In integrated membrane absorption/desorption tests, vacuum and argon sweeps were used to achieve a high purity of oxygen. With the argon sweep approach, an O2 concentration greater than 99.6% was observed in the desorbed gas stream on an argon-free basis. Overall, this proof-of-concept technology development has been successful as we have met all of the project milestones.},
doi = {10.2172/1512037},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {12}
}