Improved oxygen production technologies | Zendy

Rodney J. Allam | Zendy

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Improved oxygen production technologies

Author(s) -

Rodney J. Allam

Publication year - 2009

Publication title -

energy procedia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.474

H-Index - 81

ISSN - 1876-6102

DOI - 10.1016/j.egypro.2009.01.062

Subject(s) - air separation , waste management , combustion , environmental science , carbon dioxide , process engineering , carbon monoxide , syngas , hydrogen production , integrated gasification combined cycle , fossil fuel , pellets , hydrogen , oxygen , chemistry , materials science , engineering , organic chemistry , biochemistry , composite material , catalysis

Oxygen (O2) production is a major part of the energy consumption and capital cost of power stations and industrial processes using oxy-combustion and pre-combustion gasification of fossil fuels with carbon dioxide (CO2) capture. O2 requirements range from 3.0 tonne/day/MW net electrical power to about 20tonne/day/MW. O2 purities are from 90% to 97% and delivery pressures are from 1.7 bar to 70 bar. O2 is currently produced by cryogenic distillation of air in efficient optimized plants. A new process for O2 production under development uses a mixed metal oxide ceramic membrane (ITM or OTM) operating at temperatures above 700oC integrated with a high temperature and pressure air source such as a gas turbine. Reducing conditions on the permeate side of the membrane allow the production of hydrogen plus carbon monoxide (H2+CO) gas at elevated pressure

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