Controlled temperature expansion in oxygen production by molten alkali metal salts

Patent · Tue Jun 04 04:00:00 EDT 1985

OSTI ID:865470

Erickson, Donald C ^[1]

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1. Annapolis

A continuous process is set forth for the production of oxygen from an oxygen containing gas stream, such as air, by contacting a feed gas stream with a molten solution of an oxygen acceptor to oxidize the acceptor and cyclically regenerating the oxidized acceptor by releasing oxygen from the acceptor wherein the oxygen-depleted gas stream from the contact zone is treated sequentially to temperature reduction by heat exchange against the feed stream so as to condense out entrained oxygen acceptor for recycle to the process, combustion of the gas stream with fuel to elevate its temperature and expansion of the combusted high temperature gas stream in a turbine to recover power.

• Research Organization: Energy Concepts Co
• DOE Contract Number: AC01-79CS40287
• Assignee: Air Products and Chemicals, Inc. (Allentown, PA)
• Patent Number(s): US 4521398
• Application Number: 06/514,742
• OSTI ID: 865470
• Country of Publication: United States
• Language: English

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acceptor
air
alkali
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combusted
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condense
contact
contact zone
contacting
containing
containing gas
continuous
continuous process
controlled
controlled temperature
cyclically
elevate
entrained
exchange
expansion
feed
feed gas
feed stream
forth
fuel
gas
gas stream
heat
heat exchange
metal
metal salt
metal salts
molten
molten alkali
oxidize
oxidized
oxygen
oxygen acceptor
oxygen containing
oxygen product
oxygen production
oxygen-depleted
power
process
production
recover
recycle
reduction
regenerating
releasing
releasing oxygen
salts
sequentially
set
set forth
solution
stream
temperature
temperature gas
temperature reduction
treated
turbine
zone