SYSTEMS AND PROCESSES FOR CELLULOSIC ETHANOL PRODUCTION
First Claim
1. An integrated process to produce fuel ethanol and biodiesel from cellulose comprising:
- providing a raw cellulose stream to one or more containers selected from the group consisting of a vat, a bioreactor, and a tank by mixing a waste cellulose stream and an algae cellulose stream;
hydrolyzing the raw cellulose stream to form a hydrolyzed cellulose stream;
liquefying the hydrolyzed cellulose stream to produce a formed sugars stream and one or more liquefaction byproduct streams;
fermenting the formed sugars stream to produce a raw ethanol stream by reacting the sugars stream with a yeast feed in at least one fermenter;
separating the raw ethanol stream to form a fuel ethanol stream;
producing an algae stream by reacting at least one of the one or more liquefaction byproduct streams with algae in at least one algae bioreactor;
reacting the algae stream in at least one biodiesel reactor to produce the algae cellulose stream and a biodiesel stream; and
recovering the fuel ethanol and the biodiesel from their respective streams.
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Accused Products
Abstract
A cellulosic ethanol production process. An implementation of a process for producing fuel ethanol and biodiesel from cellulose may include: providing a raw cellulose stream by mixing a waste cellulose stream and an algae cellulose stream, hydrolyzing the raw cellulose stream to form a hydrolyzed cellulose stream, liquefying the hydrolyzed cellulose stream to produce a formed sugars stream and one or more liquefaction byproduct streams, fermenting the formed sugars stream to produce a raw ethanol stream by reacting the sugars stream with a yeast feed in at least one fermenter, separating the raw ethanol stream to form a fuel ethanol stream, producing an algae stream by reacting at least one of the one or more liquefaction byproduct streams with algae in at least one algae bioreactor, and reacting the algae stream in at least one biodiesel reactor to produce the algae cellulose stream and a biodiesel stream.
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Citations
20 Claims
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1. An integrated process to produce fuel ethanol and biodiesel from cellulose comprising:
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providing a raw cellulose stream to one or more containers selected from the group consisting of a vat, a bioreactor, and a tank by mixing a waste cellulose stream and an algae cellulose stream; hydrolyzing the raw cellulose stream to form a hydrolyzed cellulose stream; liquefying the hydrolyzed cellulose stream to produce a formed sugars stream and one or more liquefaction byproduct streams; fermenting the formed sugars stream to produce a raw ethanol stream by reacting the sugars stream with a yeast feed in at least one fermenter; separating the raw ethanol stream to form a fuel ethanol stream; producing an algae stream by reacting at least one of the one or more liquefaction byproduct streams with algae in at least one algae bioreactor; reacting the algae stream in at least one biodiesel reactor to produce the algae cellulose stream and a biodiesel stream; and recovering the fuel ethanol and the biodiesel from their respective streams. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An integrated process to produce fuel ethanol and biodiesel from cellulose comprising:
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providing a raw cellulose stream to one or more containers selected from the group consisting of a vat, a bioreactor, and a tank by mixing a waste cellulose stream and an algae cellulose stream; hydrolyzing the raw cellulose stream to form a hydrolyzed cellulose stream by reacting the raw cellulose stream with one or more organisms; liquefying the hydrolyzed cellulose stream to form a sugars stream; separating the sugars stream to form a xylitol stream and a separated sugars stream; fermenting the separated sugars stream to form a raw ethanol stream by reacting the separated sugars stream with a yeast feed in at least one fermenter; separating the raw ethanol stream to form a fuel ethanol stream; producing an algae stream by reacting the xylitol stream with algae in at least one algae bioreactor; reacting the algae stream in at least one biodiesel reactor to produce the algae cellulose stream and a biodiesel stream; and recovering the fuel ethanol and the biodiesel from their respective streams. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. An integrated process for producing fuel ethanol and biodiesel from cellulose comprising:
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providing a raw cellulose stream by mixing a waste cellulose stream and an algae cellulose stream; hydrolyzing the raw cellulose stream to form a hydrolyzed cellulose stream, a hydrolysis CO2 stream, and an hydrolysis ethanol stream by reacting the raw cellulose stream with one or more fungi selected from the group consisting of the genera Neocallimastix, Piromyces, and Orpinomyces;
liquefying the hydrolyzed cellulose stream to produce a sugars stream by heating the hydrolyzed cellulose stream and by reacting the hydrolyzed cellulose stream with one or more enzymes, one or more bacteria, or with one or more enzymes in combination with one or more bacteria; separating the sugars stream to produce a xylitol stream and a separated sugars stream; fermenting the separated sugars stream to produce a raw ethanol stream and a fermentation CO2 stream by reacting the separated sugars stream with a yeast feed in at least one fermenter; separating the raw ethanol stream to produce a fuel ethanol stream and a waste cellulose stream; producing an algae stream by reacting the hydrolysis CO2 stream, the fermentation CO2 stream, an atmospheric CO2 stream, and the xylitol stream with algae in at least one algae bioreactor; and reacting the algae stream in at least one biodiesel reactor to produce the algae cellulose stream and a biodiesel stream; and recovering the fuel ethanol and the biodiesel from their respective streams. - View Dependent Claims (18, 19, 20)
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Specification