Interaction of potassium carbonate with surface oxides of carbon

Interactions between isotopically labelled potassium carbonate (K 2 1 3CO 3) and surface oxides on carbon were studied by temperature-programmed reaction, using carbons with different surface-oxide concentrations. 13CO 2 was produced < 1000 K due to isotope exchange between the carbonate and surf...

Full description

Saved in:
Bibliographic Details
Published inFuel (Guildford) Vol. 65; no. 10; pp. 1356 - 1359
Main Authors Saber, John M., Falconer, John L., Brown, Lee F.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 01.10.1986
Elsevier
Subjects
Applied sciences
carbon
Energy
Exact sciences and technology
Fuel processing. Carbochemistry and petrochemistry
Fuels
potassium carbonate
Solid fuel processing (coal, coke, brown coal, peat, wood, etc.)
surface-oxide concentration
potassium carbonate
surface-oxide concentration
carbon
Catalytic reaction
Potassium Carbonates
Isotope labelling
Carbochemistry
Reaction mechanism
Oxides
Gasification
Surface
Online AccessGet full text

Cover

More Information
Summary:Interactions between isotopically labelled potassium carbonate (K 2 1 3CO 3) and surface oxides on carbon were studied by temperature-programmed reaction, using carbons with different surface-oxide concentrations. 13CO 2 was produced < 1000 K due to isotope exchange between the carbonate and surface oxides originally on the carbon. Carbons with a lower oxygen-content lost more potassium via volatilization than those with higher oxygen contents. The results presented explain previous observations of different temperatures for the apparent onset of potassium carbonate decomposition on carbon, potassium losses on heating, and surface K:O ratios.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(86)90103-1