DOI: 10.1002/jctb.5020231005. The reversibility of the reaction CaCO<sub>3</sub> ⇄ CaO+CO<sub>2</sub>

The reversibility of the reaction CaCO3 ⇄ CaO+CO2

10.1002/jctb.5020231005

Crossref journal-article

Wiley

Journal of Applied Chemistry and Biotechnology (311)

Abstract

AbstractThe reversibility of the reaction CaCO3 ⇌ CaO+CO2 has been examined through a large number of cycles (up to 40), mainly at 866 °C. The decomposition to the oxide is always 100% but the reactivity of the oxide so formed to carbon dioxide falls off markedly after a rapid initial reaction. There is a large increase in surface area on going from the non‐porous calcium carbonate to the oxide and this is due to the formation of pores, mostly very small (< 4 nm). The fast component of the back reaction is a surface reaction and the subsequent slow reaction is controlled by the slow diffusion of carbon dioxide through the newly formed carbonate layer. The reversibility of the reaction decreases with the number of cycles, rapidly at first and then more slowly: the first effect is probably due to loss of pore volume in the oxide and the second to sintering of the carbonate.

Bibliography

Barker, R. (1973). The reversibility of the reaction CaCO3 â CaO+CO2. Journal of Applied Chemistry and Biotechnology, 23(10), 733â742. Portico.

Authors 1

Ronald Barker (first)

References 10 Referenced 450

Barker R.Electricity Council Research Centre Report N571.1972 December.
Stern K. H.;Weise E. L.High Temperature Properties and Decomposition of Inorganic Salts.Part 2:Carbonates.1969 NSRDS‐NBS30. (10.6028/NBS.NSRDS.30)
{'key': 'e_1_2_1_4_2', 'first-page': '703', 'volume': '66', 'author': 'Nitsch W. Z.', 'year': '1962', 'journal-title': 'Elektrochem.'} / Elektrochem. by Nitsch W. Z. (1962)
10.1111/j.1151-2916.1958.tb13521.x
{'key': 'e_1_2_1_6_2', 'first-page': '579', 'volume': '83', 'author': 'Cremer E.', 'year': '1959', 'journal-title': 'Tonind. Ztg keram. Rdsch.'} / Tonind. Ztg keram. Rdsch. by Cremer E. (1959)
10.1021/ja01269a023
{'key': 'e_1_2_1_8_2', 'first-page': 'B186', 'volume-title': 'Handbook of Chemistry and Physics', 'author': 'Weast R. C.', 'year': '1969'} / Handbook of Chemistry and Physics by Weast R. C. (1969)
{'key': 'e_1_2_1_9_2', 'first-page': '2', 'volume-title': 'Decomposition of Solids.', 'author': 'Young D. A.', 'year': '1966'} / Decomposition of Solids. by Young D. A. (1966)
{'key': 'e_1_2_1_10_2', 'first-page': '123', 'volume-title': 'Adsorption, Surface Area and Porosity.', 'author': 'Gregg S. J.', 'year': '1967'} / Adsorption, Surface Area and Porosity. by Gregg S. J. (1967)
10.1016/0009-2509(70)85038-2

Dates

Type	When
Created	15 years, 1 month ago (July 5, 2010, 11:31 p.m.)
Deposited	1 year, 9 months ago (Nov. 6, 2023, 4:23 p.m.)
Indexed	4 hours, 35 minutes ago (Aug. 26, 2025, 2:35 a.m.)
Issued	51 years, 10 months ago (Oct. 1, 1973)
Published	51 years, 10 months ago (Oct. 1, 1973)
Published Online	18 years, 4 months ago (April 25, 2007)
Published Print	51 years, 10 months ago (Oct. 1, 1973)

Funders 0

None

BibTeX

@article{Barker_1973, title={The reversibility of the reaction CaCO3 ⇄ CaO+CO2}, volume={23}, ISSN={1935-0554}, url={http://dx.doi.org/10.1002/jctb.5020231005}, DOI={10.1002/jctb.5020231005}, number={10}, journal={Journal of Applied Chemistry and Biotechnology}, publisher={Wiley}, author={Barker, Ronald}, year={1973}, month=oct, pages={733–742} }

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