Compositions and methods using substances containing carbon
First Claim
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1. A method of verifying the origin of carbon in a synthetic carbonate composition derived from a combustion of a fossil fuel source comprising:
- i) evaluating the source of the carbon in the synthetic carbonate composition derived from the combustion of a fossil fuel source by(a) determining a relative carbon isotope composition δ
13C value for the composition;
(b) comparing the value determined in step (a) with a second δ
13C value of a known source; and
(c) verifying that the composition comprises carbon derived from a fossil fuel source based on the result of the comparison of step (b) and confirming that the δ
13C value for the composition is more like to δ
13C values derived from plant-derived sources than δ
13C values derived from atmospheric carbon dioxide or non-planted-derived marine sources of carbon;
ii) measuring the carbon content of the composition; and
iii) quantifying an amount of carbon dioxide that is sequestered in the composition.
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Abstract
Methods of characterizing and producing compositions with negative δ13C values are provided. Aspects of the invention include characterizing source materials and process products. Aspects of the invention also include compositions that contain carbon with negative δ13C values. Methods and techniques are provided for confirming that a given composition contains substances sequestered from a particular source e.g., fossil fuels.
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Citations
9 Claims
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1. A method of verifying the origin of carbon in a synthetic carbonate composition derived from a combustion of a fossil fuel source comprising:
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i) evaluating the source of the carbon in the synthetic carbonate composition derived from the combustion of a fossil fuel source by (a) determining a relative carbon isotope composition δ
13C value for the composition;(b) comparing the value determined in step (a) with a second δ
13C value of a known source; and(c) verifying that the composition comprises carbon derived from a fossil fuel source based on the result of the comparison of step (b) and confirming that the δ
13C value for the composition is more like to δ
13C values derived from plant-derived sources than δ
13C values derived from atmospheric carbon dioxide or non-planted-derived marine sources of carbon;ii) measuring the carbon content of the composition; and iii) quantifying an amount of carbon dioxide that is sequestered in the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification