CA2615904A1 - Methods of biomass pretreatment - Google Patents

Methods of biomass pretreatment Download PDF

Info

Publication number
CA2615904A1
CA2615904A1 CA002615904A CA2615904A CA2615904A1 CA 2615904 A1 CA2615904 A1 CA 2615904A1 CA 002615904 A CA002615904 A CA 002615904A CA 2615904 A CA2615904 A CA 2615904A CA 2615904 A1 CA2615904 A1 CA 2615904A1
Authority
CA
Canada
Prior art keywords
mixture
biomass
grams
temperature
lignocellulose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002615904A
Other languages
French (fr)
Other versions
CA2615904C (en
Inventor
Mark T. Holtzapple
Richard R. Davison
Murlidhar Nagwani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas A&M University System
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/096,972 external-priority patent/US5865898A/en
Application filed by Individual filed Critical Individual
Publication of CA2615904A1 publication Critical patent/CA2615904A1/en
Application granted granted Critical
Publication of CA2615904C publication Critical patent/CA2615904C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P2201/00Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Paper (AREA)

Abstract

The invention is directed to methods for the pretreatment of a lignocellulose-containing biomass. Pretreatment comprises the addition of calcium hydroxide and water to the biomass to form a mixture, and subjecting the mixture to relatively high temperatures for a period of time sufficient to render the biomass amenable to digestion. The pretreated biomass is digested to produce useful products such as feedstocks, fuels, and compounds including fatty acids, sugars, ketones and alcohols. Alternatively, the pretreatment process includes the addition of an oxidizing agent, selected from the group consisting of oxygen and oxygen-containing gasses, to the mixture under pressure. The invention is also directed to a method for the recovery of calcium from the pretreated biomass.

Claims (41)

1. A method for pretreating a lignocellulose-containing biomass to render the biomass amenable to digestion comprising:
a) providing the lignocellulose-containing biomass, b) adding calcium hydroxide and water to the biomass to form a mixture;
c) adding an oxidizing agent, selected from the group consisting of oxygen and oxygen-containing gasses, to the mixture under pressure; and d) maintaining the mixture at an elevated temperature and for a period of time sufficient to render the biomass of the mixture amenable to digestion.
2. The method of claim 1 wherein the lignocellulose-containing biomass contains greater than 20% lignin.
3. The method of claim 1 wherein the oxidizing agent is added to the mixture at a pressure of between about 20 to about 500 psig.
4. The method of claim 1 wherein the oxidizing agent is added to the mixture at a pressure of about 100 psig.
5. The method of claim 1 wherein the mixture contains between about 6 to about 19 grams of water per gram of dry biomass.
6. The method of claim 1 wherein the mixture contains about 16 grams of water per gram of dry biomass.
7. The method of claim 1 wherein the mixture contains between about 2 to about 30 grams of calcium hydroxide per 100 grams of dry biomass.
8. The method of claim 1 wherein the mixture contains about 30 grams of calcium hydroxide per 100 grams of dry biomass.
9. The method of claim 1 wherein the lignocellulose-containing biomass is grass, wood, bagasse, straw, paper or plant material, and combinations thereof.
10. The method of claim 1 wherein the mixture is maintained at the temperature of between about 40°C to about 150°C.
11. The method of claim 1 wherein the mixture is maintained at the temperature of between about 100°C and about 140°C.
12. The method of claim 1 wherein the mixture is maintained at the temperature of about 120°C.
13. The method of claim 1 wherein the period of time is between about 1 and about 36 hours.
14. The method of claim 1 wherein the period of time is about 3 hours.
15. The method of claim 1 wherein the mixture is maintained at a temperature of about 120°C, for about 3 hours, and the oxidizing agent pressure is about 100 psig.
16. A method for converting a lignocellulose-containing biomass into a useful product comprising:

a) providing the lignocellulose-containing biomass;
b) adding calcium hydroxide and water to the biomass to form a mixture;

c) adding an oxidizing agent, selected from the group consisting of oxygen and oxygen-containing gasses, to the mixture under pressure;
d) maintaining the oxidized mixture at a temperature and for a period of time sufficient to render the biomass of the mixture amenable to digestion;
and e) digesting the pretreated biomass of the mixture to convert the biomass into the useful product.
17. The method of claim 16 wherein the biomass is digested by acid hydrolysis, enzymatic action, fermentation, or a combination thereof.
18. A useful product made by the method of claim 16.
19. The useful product of claim 18 which comprises a chemical feedstock.
20. The useful product of claim 18 which comprises a fuel.
21. The useful product of claim 18 which comprises an alcohol, an organic acid, a sugar, a ketone, a fatty acid, or a combination thereof.
22. A method for pretreating a lignocellulose-containing biomass to render the biomass amenable to digestion comprising:
a) providing the lignocellulose-containing biomass;
b) adding calcium hydroxide and water to the biomass to form a mixture; and c) maintaining the mixture at a temperature and for a period of time sufficient to render the biomass of the mixture amenable to digestion.
23. The method of claim 22 wherein the mixture contains between about 6 and about 19 grams of water per gram of dry biomass.
24. The method of claim 22 wherein the mixture contains between about 9 and about 11 grams of water per gram of dry biomass.
25. The method of claim 22 wherein the mixture contains between about 2 and about 30 grams of calcium hydroxide per 100 grams of dry biomass.
26. The method of claim 22 wherein the mixture contains between about 10 and about 15 grams of calcium hydroxide per 100 grams of dry biomass.
27. The method of claim 22 wherein the lignocellulose-containing biomass is grass, wood, bagasse, straw, paper or plant material, and combinations thereof.
28. The method of claim 22 wherein the mixture is maintained at the temperature of between about 40°C and about 150°C.
29. The method of claim 22 wherein the mixture is maintained at the temperature of between about 40°C and about 70°C.
30. The method of claim 22 wherein the mixture is maintained at the temperature of between about 70°C and about 110°C.
31. The method of claim 22 wherein the mixture is maintained at the temperature of between about 110°C and about 150°C.
32. The method of claim 22 wherein the period of time is between about 1 and about 36 hours.
33. The method of claim 22 wherein the period of time is between about 15 and about 25 hours.
34. The method of claim 22 wherein the period of time is between about 1 and about 2 hours.
35. The method of claim 22 wherein the mixture is maintained at a temperature of between about 40°C and about 150°C, and the period of time is between about 1 and about 36 hours.
36. A method for converting a lignocellulose-containing biomass into a useful product comprising:
a) providing a lignocellulose-containing biomass;
b) adding calcium hydroxide and water to the biomass to form a mixture;
c) maintaining the mixture at a temperature and for a period of time sufficient to render the biomass of the mixture amenable to digestion; and d) digesting the biomass of the mixture to convert the biomass into the useful product.
37. The method of claim 36 wherein the biomass is digested by acid hydrolysis, enzymatic action, fermentation, or a combination thereof.
38. A useful product made by the method of claim 36.
39. The useful product of claim 38 which comprises a chemical feedstock.
40. The useful product of claim 38 which comprises a fuel.
41. The useful product of claim 38 which comprises an alcohol, an organic acid, a sugar, a ketone, a fatty acid, or a combination thereof.
CA2615904A 1992-08-06 1993-08-06 Methods of biomass pretreatment Expired - Lifetime CA2615904C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US92673992A 1992-08-06 1992-08-06
US07/926,739 1992-08-06
US08/096,972 US5865898A (en) 1992-08-06 1993-07-27 Methods of biomass pretreatment
US08/096,972 1993-07-27
CA002141794A CA2141794C (en) 1992-08-06 1993-08-06 Methods of biomass pretreatment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002141794A Division CA2141794C (en) 1992-08-06 1993-08-06 Methods of biomass pretreatment

Publications (2)

Publication Number Publication Date
CA2615904A1 true CA2615904A1 (en) 1994-02-17
CA2615904C CA2615904C (en) 2011-09-27

Family

ID=39315324

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2615904A Expired - Lifetime CA2615904C (en) 1992-08-06 1993-08-06 Methods of biomass pretreatment

Country Status (1)

Country Link
CA (1) CA2615904C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8123864B2 (en) 2005-07-19 2012-02-28 Inbicon A/S Method and apparatus for conversion of cellulosic material to ethanol
US10612059B2 (en) 2015-04-10 2020-04-07 Comet Biorefining Inc. Methods and compositions for the treatment of cellulosic biomass and products produced thereby
US10633461B2 (en) 2018-05-10 2020-04-28 Comet Biorefining Inc. Compositions comprising glucose and hemicellulose and their use
CN111903842A (en) * 2020-07-24 2020-11-10 华南农业大学 Preparation method of sea-buckthorn branch feed
CN113860492A (en) * 2021-11-12 2021-12-31 桂林理工大学 Carbon release amount regulation method of denitrifying wood carbon source based on reducing sugar yield, wood carbon source and application
CN114875105A (en) * 2022-03-09 2022-08-09 益水源生物技术(西安)有限公司 Biomass-based efficient carbon source and preparation method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8123864B2 (en) 2005-07-19 2012-02-28 Inbicon A/S Method and apparatus for conversion of cellulosic material to ethanol
US9284383B2 (en) 2005-07-19 2016-03-15 Inbicon A/S Method and apparatus for conversion of cellulosic material to ethanol
US10155966B2 (en) 2005-07-19 2018-12-18 Inbicon A/S Method and apparatus for conversion of cellulosic material to ethanol
US10612059B2 (en) 2015-04-10 2020-04-07 Comet Biorefining Inc. Methods and compositions for the treatment of cellulosic biomass and products produced thereby
US11692211B2 (en) 2015-04-10 2023-07-04 Comet Biorefining Inc. Methods and compositions for the treatment of cellulosic biomass and products produced thereby
US10633461B2 (en) 2018-05-10 2020-04-28 Comet Biorefining Inc. Compositions comprising glucose and hemicellulose and their use
US11525016B2 (en) 2018-05-10 2022-12-13 Comet Biorefining Inc. Compositions comprising glucose and hemicellulose and their use
CN111903842A (en) * 2020-07-24 2020-11-10 华南农业大学 Preparation method of sea-buckthorn branch feed
CN111903842B (en) * 2020-07-24 2023-01-13 华南农业大学 Preparation method of sea-buckthorn branch feed
CN113860492A (en) * 2021-11-12 2021-12-31 桂林理工大学 Carbon release amount regulation method of denitrifying wood carbon source based on reducing sugar yield, wood carbon source and application
CN113860492B (en) * 2021-11-12 2023-02-03 桂林理工大学 Carbon release amount regulation method of denitrifying wood carbon source based on reducing sugar yield, wood carbon source and application
CN114875105A (en) * 2022-03-09 2022-08-09 益水源生物技术(西安)有限公司 Biomass-based efficient carbon source and preparation method thereof

Also Published As

Publication number Publication date
CA2615904C (en) 2011-09-27

Similar Documents

Publication Publication Date Title
US8329436B2 (en) Method of making propanol and ethanol from plant material by biological conversion and gasification
CA2141794A1 (en) Methods of biomass pretreatment
Teixeira et al. Optimizing peracetic acid pretreatment conditions for improved simultaneous saccharification and co-fermentation (SSCF) of sugar cane bagasse to ethanol fuel
JP4756276B2 (en) Ethanol production method
Tong et al. Methane fermentation of selected lignocellulosic materials
Dominguez et al. Pretreatment of sugar cane bagasse hemicellulose hydrolysate for xylitol production by yeast
US7666637B2 (en) Integrated process for separation of lignocellulosic components to fermentable sugars for production of ethanol and chemicals
CA1327537C (en) Integrated process for the production of food, feed and fuel from biomass
JP5325793B2 (en) Process for fermentative production of ethanol from solid lignocellulosic material comprising the step of treating the solid lignocellulosic material with an alkaline solution to remove lignin
US20130078698A1 (en) Process for fractionation of biomass
US9994873B2 (en) Process for the production of alcohols and/or solvents from lignocellulosic biomass with acid recycle of solid residues
CA2684007A1 (en) Combined thermochemical pretreatment and refining of lignocellulosic biomass
US9809867B2 (en) Carbon purification of concentrated sugar streams derived from pretreated biomass
Sakdaronnarong et al. Two-step acid and alkaline ethanolysis/alkaline peroxide fractionation of sugarcane bagasse and rice straw for production of polylactic acid precursor
KR100965851B1 (en) Processes for the pretreatment of lignocellulosic biomasses by popping method, and processes for the production of saccharides and bio-ethanol using the same
Iwahara Microbial degradation of DHP
CA2615904A1 (en) Methods of biomass pretreatment
Wayman et al. SO 2 prehydrolysis for high yield ethanol production from biomass
Grohmann et al. Enzymes for fuels and chemical feedstocks
KR101010183B1 (en) Processes for producing saccharides and bio-ethanol from red algae
US20150125917A1 (en) D(-) lactic acid production
Aransiola et al. Lignocellulosic Pretreatment Methods for Bioethanol Production
ZA964098B (en) Process for the production of ethanol
WO2023084321A1 (en) Process and system for preparing three or more value added products from bio mass
RO127406A2 (en) Process for preparing a bioethanol fuel

Legal Events

Date Code Title Description
EEER Examination request