Circulating moving bed system for CO.sub.2 separation, and method of same

Title: Circulating moving bed system for CO.sub.2 separation, and method of same

A circulating moving bed and process for separating a carbon dioxide from a gas stream is disclosed. The circulating moving bed can include an adsorption reactor and a desorption reactor, and a sorbent that moves through the two reactors. The sorbent can enter the adsorptive reactor and one end and move to an exit point distal to its entry point, while a CO.sub.2 feed stream can enter near the distal point and move countercurrently through the sorbent to exit at a position near the entry point of the sorbent. The sorbent can adsorb the CO.sub.2 by concentration swing adsorption and adsorptive displacement. The sorbent can then transfer to a regeneration reactor and can move countercurrently against a flow of steam through the regeneration reactor. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing desorption and desorptive displacement with steam.

Inventors:: Elliott, Jeannine Elizabeth; Copeland, Robert James

Issue Date:: 2016-12-27

OSTI Identifier:: 1337689

Assignee:: TDA RESEARCH, INC. (Wheat Ridge, CO) NETL

Patent Number(s):: 9,527,029

Application Number:: 14/325,519

Contract Number:: NT0005497

Resource Relation:: Patent File Date: 2014 Jul 08

Research Org:: TDA RESEARCH, INC. Wheat Ridge, CO (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 03 NATURAL GAS; 54 ENVIRONMENTAL SCIENCES

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Other works cited in this record:

Rotary sorption bed system and method of use
patent, October 1987

Oliker, Michael
US Patent Document 4,701,189
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/4701189

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