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Title: A calcium oxide sorbent process for bulk separation of carbon dioxide. Quarterly progress report No. 18, October 1993--December 1993

Abstract

This research project is investigating the technical feasibility of a high-temperature, high-pressure (HTHP) process for the bulk separation of CO{sub 2} from coal-derived gas. Phase I research, in which an electrobalance reactor was used to establish the technical feasibility of the regenerable sorbent process, was completed in March 1992 and results have been fully described in earlier quarterly reports. In Phase I, the calcination and carbonation characteristics of three calcium sorbents were studied as a function of calcination and carbonation temperature and pressure, mol fraction CO{sub 2} in the carbonation gas, and carbonation background gas composition. Desirable reaction conditions required for high reactivity and good sorbent durability were determined. Multicycle tests consisting of as many as ten complete calcination and carbonation cycles were completed. Indirect evidence which suggested that the water-gas shift reaction occurred simultaneously with CO{sub 2} removal was found. Occurrence of the simultaneous reactions created the possibility of a direct one-step process for the manufacture of hydrogen from coal-gas while at the same time separating a concentrated stream of CO{sub 2}. The concentrated CO{sub 2} stream could be quite significant if, in the future, environmental regulations restrict atmospheric CO{sub 2}, emissions.

Authors:
Publication Date:
Research Org.:
Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Chemical Engineering
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10157238
Report Number(s):
DOE/MC/26366-3758
ON: DE94013215; BR: AA8575000
DOE Contract Number:  
AC21-89MC26366
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jan 1994
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT; 08 HYDROGEN; CARBON DIOXIDE; MATERIALS RECOVERY; ABSORPTION; CALCIUM OXIDES; SORPTIVE PROPERTIES; SEPARATION PROCESSES; COAL GASIFICATION; COAL GAS; WATER GAS PROCESSES; SHIFT PROCESSES; CARBON MONOXIDE; OXIDATION; HYDROGEN PRODUCTION; PROGRESS REPORT; CALCINATION; REGENERATION; TEMPERATURE DEPENDENCE; PRESSURE DEPENDENCE; FEASIBILITY STUDIES; EXPERIMENTAL DATA; 540120; 010404; 080107; CHEMICALS MONITORING AND TRANSPORT; GASIFICATION

Citation Formats

Harrison, D P. A calcium oxide sorbent process for bulk separation of carbon dioxide. Quarterly progress report No. 18, October 1993--December 1993. United States: N. p., 1994. Web. doi:10.2172/10157238.
Harrison, D P. A calcium oxide sorbent process for bulk separation of carbon dioxide. Quarterly progress report No. 18, October 1993--December 1993. United States. https://doi.org/10.2172/10157238
Harrison, D P. 1994. "A calcium oxide sorbent process for bulk separation of carbon dioxide. Quarterly progress report No. 18, October 1993--December 1993". United States. https://doi.org/10.2172/10157238. https://www.osti.gov/servlets/purl/10157238.
@article{osti_10157238,
title = {A calcium oxide sorbent process for bulk separation of carbon dioxide. Quarterly progress report No. 18, October 1993--December 1993},
author = {Harrison, D P},
abstractNote = {This research project is investigating the technical feasibility of a high-temperature, high-pressure (HTHP) process for the bulk separation of CO{sub 2} from coal-derived gas. Phase I research, in which an electrobalance reactor was used to establish the technical feasibility of the regenerable sorbent process, was completed in March 1992 and results have been fully described in earlier quarterly reports. In Phase I, the calcination and carbonation characteristics of three calcium sorbents were studied as a function of calcination and carbonation temperature and pressure, mol fraction CO{sub 2} in the carbonation gas, and carbonation background gas composition. Desirable reaction conditions required for high reactivity and good sorbent durability were determined. Multicycle tests consisting of as many as ten complete calcination and carbonation cycles were completed. Indirect evidence which suggested that the water-gas shift reaction occurred simultaneously with CO{sub 2} removal was found. Occurrence of the simultaneous reactions created the possibility of a direct one-step process for the manufacture of hydrogen from coal-gas while at the same time separating a concentrated stream of CO{sub 2}. The concentrated CO{sub 2} stream could be quite significant if, in the future, environmental regulations restrict atmospheric CO{sub 2}, emissions.},
doi = {10.2172/10157238},
url = {https://www.osti.gov/biblio/10157238}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}