CARBON DIOXIDE RECOVERY FROM BIOFUELS PROCESSES FOR THE PRODUCTION OF UREA
First Claim
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1. A method comprising the steps of:
- a) processing a quantity of biomass such that at least a portion of said biomass is converted into a quantity of at least one biofuel, wherein CO2 is a by-product of said processing; and
b) directing at least some of the by-product CO2 into a reaction chamber where it is reacted with NH3 to produce urea.
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Abstract
The present invention is generally directed to systems and methods for processing biomass for the production of biofuels, wherein carbon dioxide (CO2) produced as a by-product of such processing is reacted with ammonia (NH3) to produce urea (NH2)2CO, a common agricultural fertilizer. In some such embodiments, the urea so produced can be used as fertilizer for biomass production, such biomass ultimately being channeled back into the systems/methods for conversion to biofuels.
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Citations
20 Claims
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1. A method comprising the steps of:
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a) processing a quantity of biomass such that at least a portion of said biomass is converted into a quantity of at least one biofuel, wherein CO2 is a by-product of said processing; and b) directing at least some of the by-product CO2 into a reaction chamber where it is reacted with NH3 to produce urea. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a) a processing subsystem for processing biomass into biofuel, wherein said processing produces CO2 as a by-product; and b) a reactor subsystem for directing at least some of the by-product CO2 into a reaction chamber where it is reacted with NH3 to produce urea and H2O. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification