Process and apparatus for the microbial production of a specific product and methane
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12P-039/00
C12P-007/54
C12P-005/02
C12P-007/18
출원번호
US-0681899
(2008-10-08)
등록번호
US-8426162
(2013-04-23)
우선권정보
DE-10 2007 048 277 (2007-10-08)
국제출원번호
PCT/EP2008/063493
(2008-10-08)
§371/§102 date
20100719
(20100719)
국제공개번호
WO2009/047275
(2009-04-16)
발명자
/ 주소
Friedmann, Hans
Zeng, An-Ping
출원인 / 주소
Agraferm Technologies AG
대리인 / 주소
Rankin, Hill & Clark LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
The process according to the invention for the microbial production of a specific product and methane comprises the following steps: a) the production in a bioreactor (2, 10) of a specific product from a specific substrate using a specific organism, the producer, wherein during the production of thi
The process according to the invention for the microbial production of a specific product and methane comprises the following steps: a) the production in a bioreactor (2, 10) of a specific product from a specific substrate using a specific organism, the producer, wherein during the production of this product metabolites such as e.g. low-molecular alcohols, aldehydes and acids, hydrogen and CO2, which may inhibit the production of the product, are obtained; and b) the production of methane by means of a methanogen, wherein in the production of the methane at least one metabolite is decomposed and by this means removed from the bioreactor (2, 10) and its energy is made usable.
대표청구항▼
1. A process for the microbial production of 1,3-propanediol and methane by a co-culture of microorganisms in a bioreactor, comprising: a) producing 1,3-propanediol in an anaerobic bioreactor from a substrate using a producer microorganism, wherein during the production of 1,3-propanediol at least o
1. A process for the microbial production of 1,3-propanediol and methane by a co-culture of microorganisms in a bioreactor, comprising: a) producing 1,3-propanediol in an anaerobic bioreactor from a substrate using a producer microorganism, wherein during the production of 1,3-propanediol at least one byproduct selected from the group consisting of alcohols, aldehydes, acids, hydrogen, carbon dioxide, and combinations thereof is also produced by the producer microorganism,b) producing methane using a methanogen, wherein during the production of the methane at least one byproduct from step (a) is consumed wherein said byproduct inhibits the production of 1,3-propanediol by said producer microorganism, andc) purifying the 1,3-propanediol. 2. The process of claim 1, wherein the producer microorganism is a species of a genus of bacteria selected from the group consisting of Klebsiella Enterobacter, Citrobacter, Lactobacilli, Clostridia, and combinations thereof, and wherein the byproducts produced are selected from the group consisting of acetate, ethanol, formate, butyrate, succinate, lactate, 2,3-butanediol, carbon dioxide, hydrogen, and combinations thereof. 3. The process of claim 1, wherein the methane is fed to an energy converter, which converts the methane into at least one of electrical energy and heat. 4. The process of claim 3, wherein the heat or electrical energy produced is used in the bioreactor or to purify the 1,3-propanediol. 5. The process of claim 1, wherein the purification of 1,3-propanediol produces a vapor condensate which is returned to the bioreactor. 6. The process of claim 1, further comprising transferring the contents of the bioreactor to a downstream reactor wherein remaining substrate and byproducts are used to produce 1,3-propanediol and methane. 7. The process of claim 1, wherein the co-culture further comprises an acetogenic bacterium, wherein the acetogenic bacterium converts byproducts of the 1,3-propanediol producing microorganism into substrates suitable for the methanogen. 8. The process of claim 7, wherein the acetogenic bacterium is a species of a genus selected from the group consisting of Acetobacter, Clostridia, and combinations thereof. 9. The process of claim 7, wherein the acetogenic bacterium is a homoacetate fermenter, and wherein the homoacetate fermenter is a hydrogen sink. 10. The process of claim 7, wherein the acetogenic bacterium converts the byproducts to acetate. 11. The process of claim 7, wherein nutrients and substrates obtained during the purification of the 1,3-propanediol, are fed back into the bioreactor. 12. The process of claim 11, wherein the substrate obtained during purification is glycerol.
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이 특허에 인용된 특허 (7)
Srivastava Kailash Chandra (Centreville VA) Walia Daman S. (Woodbridge VA), Biological production of humic acid and clean fuels from coal.
Wilke Charles R. (El Cerrito CA) Maiorella Brian L. (Berkeley CA) Blanch Harvey W. (Berkeley CA) Cysewski Gerald R. (Kennewick WA), Fermentative alcohol production.
Haynie Sharon L. (Philadelphia PA) Wagner Lorraine W. (Newark DE), Process for making 1,3-propanediol from carbohydrates using mixed microbial cultures.
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