Conversion of Carbon Containing Feedstock
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Abstract
This invention relates to a process for the conversion of carbon containing feedstock to a liquid chemical product, particularly a liquid fuel product, wherein carbon dioxide emissions are minimized.
7 Citations
35 Claims
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1-28. -28. (canceled)
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29. A process for producing a liquid chemical or liquid fuel product wherein CO2 emissions are minimised, the process comprising the steps of:
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(i) endothermically gasifying a carbon-containing feedstock with an oxygen-containing gas and a co-feed substance to form a synthesis gas, wherein the co-feed substance is a substance which lies in a region bound by points CH2—
H2O—
H2 on a C—
H—
O ternary phase diagram;(ii) in the same vessel as the gasification reaction, exothermically reacting the synthesis gas to form dimethyl ether or a Fisher-Tropsch fuel product; and (iii) recycling any CO2 within the process; wherein the use of the co-feed reduces the production of CO2 in the process.
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35. A process for producing dimethyl ether wherein CO2 emissions are minimised, the process comprising the steps of:
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(i) endothermically gasifying a carbon-containing feedstock with an oxygen-containing gas and a co-feed substance to form a synthesis gas, wherein the co-feed substance is a substance which lies in a region bound by points CH2—
H2O—
H2 on a C—
H—
O ternary phase diagram;(ii) in a separate vessel as the gasification reaction, exothermically reacting the synthesis gas to form dimethyl ether; and (iii) recycling any CO2 within the process; wherein the use of the co-feed reduces the production of CO2 in the process.
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Specification