METHOD TO REDUCE GHG EMISSIONS OF FUEL PRODUCTION
First Claim
1. A method for reducing life cycle GHG emissions associated with production of a liquid fuel or fuel intermediate comprising:
- (i) producing sugar from plant derived organic material;
(ii) fermenting the sugar to produce biogenic carbon dioxide and the liquid fuel or fuel intermediate;
(iii) collecting an amount of biogenic carbon dioxide generated from the step of fermenting; and
(iv) supplying the biogenic carbon dioxide from step (iii) for use in one or more enhanced oil recovery sites or in one or more enhanced gas recovery sites for displacement of geologic carbon dioxide,wherein the life cycle GHG emissions associated with the production or use of the liquid fuel or fuel intermediate are reduced by at least 1.5 g CO2 eq/MJ relative to a production process baseline as a result of displacement of geologic carbon dioxide.
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Accused Products
Abstract
The present invention provides a method for reducing life cycle GHG emissions associated with production of a liquid fuel or fuel intermediate. The method comprises: fermenting sugar to produce biogenic carbon dioxide and the liquid fuel or fuel intermediate; collecting an amount of biogenic carbon dioxide generated from the fermentation; and supplying the biogenic carbon dioxide for use in one or more enhanced oil or gas recovery sites for displacement of geologic carbon dioxide. Further provided is a method comprising receiving an amount of carbon dioxide from an apparatus for delivering carbon dioxide to one or more enhanced oil or gas recovery sites so as to displace the use of geologic carbon dioxide at the site. The carbon dioxide received has the GHG emission attributes of the biogenic carbon dioxide introduced to the apparatus.
14 Citations
30 Claims
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1. A method for reducing life cycle GHG emissions associated with production of a liquid fuel or fuel intermediate comprising:
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(i) producing sugar from plant derived organic material; (ii) fermenting the sugar to produce biogenic carbon dioxide and the liquid fuel or fuel intermediate; (iii) collecting an amount of biogenic carbon dioxide generated from the step of fermenting; and (iv) supplying the biogenic carbon dioxide from step (iii) for use in one or more enhanced oil recovery sites or in one or more enhanced gas recovery sites for displacement of geologic carbon dioxide, wherein the life cycle GHG emissions associated with the production or use of the liquid fuel or fuel intermediate are reduced by at least 1.5 g CO2 eq/MJ relative to a production process baseline as a result of displacement of geologic carbon dioxide. - View Dependent Claims (2, 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26)
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5. A method to reduce the life cycle GHG emissions associated with a process that transforms plant derived organic material into a liquid fuel or a fuel intermediate, said method comprising:
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(i) producing sugar from the plant derived organic material; (ii) fermenting the sugar to produce a liquid fuel or fuel intermediate and biogenic carbon dioxide; (iii) collecting an amount of the biogenic carbon dioxide generated from the step of fermenting; and (iv) reducing the life cycle GHG emissions associated with said process, said reducing being achieved at least in part by a displacement of geologic carbon dioxide with the biogenic carbon dioxide from step (ii), said displacement resulting from; (a) introducing the biogenic carbon dioxide into an apparatus for transporting carbon dioxide to one or more enhanced oil or gas recovery sites that used or are using geologic carbon dioxide; (b) supplying the biogenic carbon dioxide for use in one or more enhanced oil or gas recovery sites that used or are using geologic carbon dioxide;
or(c) both (a) and (b). wherein the life cycle GHG emission reductions are reduced by at least 1.5 g CO2 eq/MJ of fuel used relative to a production process baseline as a result of the displacement of geologic carbon dioxide. - View Dependent Claims (6)
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24. A method for reducing life cycle GHG emissions associated with production of a liquid fuel or fuel intermediate comprising:
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(i) producing sugar from plant derived organic material; (ii) fermenting the sugar to produce biogenic carbon dioxide and the liquid fuel or fuel intermediate; (iii) collecting an amount of biogenic carbon dioxide generated from the step of fermenting; (iv) supplying the biogenic carbon dioxide from step (iii) to one or more enhanced oil recovery sites, and causing displacement of geologic carbon dioxide; wherein the life cycle GHG emissions associated with the production of the liquid fuel or fuel intermediate are reduced by at least 1.5 g CO2 eq/MJ relative to a production process baseline as a result of the displacement; and (v) recovering the liquid fuel or fuel intermediate produced by the step of fermenting.
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27. A method comprising:
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(a) receiving carbon dioxide at an enhanced oil or gas recovery site, said carbon dioxide being withdrawn from an apparatus into which biogenic carbon dioxide derived from a liquid fuel fermentation of organic material has been fed, and wherein the received carbon dioxide has the GHG emission attributes of the biogenic carbon dioxide derived from the liquid fuel fermentation; and (b) using the received carbon dioxide to displace geologic carbon dioxide. - View Dependent Claims (28, 29, 30)
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Specification