JP6078060B2 - 発酵前のc5/c6糖放出を改善するためのバイオマスのコンディショニング - Google Patents
発酵前のc5/c6糖放出を改善するためのバイオマスのコンディショニング Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K1/00—Glucose; Glucose-containing syrups
- C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Processing Of Solid Wastes (AREA)
Description
水分50%のトウモロコシの穂軸に対して、米国特許出願第12/560,843号明細書に記載されるように、前処理前に、低圧(5psig)蒸気を用いて10分間、大気圧における蒸気による予備加熱を行った。セルロース消化率の結果を、過熱蒸気を用いて300psiで1分間の予備蒸気処理を用いた対照と比較した(表1)。
(1)Shapouri H et al.(1995)USDA Report 721.Estimating the net energy balance of corn ethanol.
(2)Shapouri H et al.(2002)USDA Report 813.The Energy Balance of corn ethanol:an update.
(3)Chow J et al.(2003)Science,302,1528−1531 Energy resources and global development.
(4)Wald ML,Barrionuevo A(2007)New York Times,April 7th,The Energy challenge:A Renewed push for ethanol,without the corn.
(5)Greeg D(2008)Biocycle,49,11−47.Commercializing cellulosic ethanol.
(6)Hill J et al.(2006)Proc.Natl.Acad.Sci.USA,103,11206−11210.Environmental,economic,and energetic costs and benefits of biodiesel and ethanol biofuels.
(7)Farrell AE et al.(2006)Science,311,506−508.Ethanol can contribute to energy and environmental goals.
(8)Somerville C(2007)Current biology,17,115−119.Biofuels.
(9)Schuetzle D et al.(2007)Western Governors’Association.Alcohol fuels from biomass−Assessment of production technologies.
(10)Chum L,Overend R(2002)Fuel Processing technology,71,187−195.Biomass and renewable fuels.
(11)Wyman CE(1996)Taylor & Francis:Washington DC,USA,Handbook on bioethanol:production and utilization.
(12)McMillan JD(1994)In Enzymatic Conversion of Biomass for Fuels Production;Himmel,M.E.,Baker,J.O.,Overend,R.P.,Eds.;ACS:Washington DC,USA,1994;pp.292−324.Pretreatment of lignocellulosic biomass.
(13)Fan L et al(1982)Adv.Biochem.Eng.Biotechnol.,23,158−183.The nature of lignocellulosics and their pretreatments for enzymatic hydrolysis.
(14)Yang B,Wyman CE(2007)Biofuels,Bioproducts and Biorefinering,2,26−40.Pretreatment:the key to unlocking low−cost cellulosic ethanol.
Claims (28)
- リグノセルロース系バイオマスからC5/C6糖を回収し、回収したC5/C6糖をエタノールまで発酵させる方法であって、高温高圧において蒸気でバイオマスを前処理するステップと、ヘミセルロース分解物からC5糖類を収集するステップと、セルロースを加水分解するステップと、セルロースの分解物からC6糖類を収集するステップとを含む方法において、
前処理ステップの前に:
蒸気加熱されたバイオマスを生成するために、5分〜60分の間の時間、蒸気で前記バイオマスを80〜100℃の温度に加熱するステップと;
前記蒸気加熱されたバイオマスを、2−1〜6−1の圧縮比で圧搾することによって、樹脂、油、脂肪酸、または下流の加水分解または発酵の他の阻害物質を含有する液体流を除去するステップと;
前記蒸気加熱されたバイオマスを圧搾するステップの後で、水、または水と前処理の触媒とを加えることによって、前記圧搾されかつ蒸気処理されたバイオマスの含水率を60%〜80%に調節するステップと、
による前記バイオマスのコンディショニングを行うことを特徴とする方法。 - 請求項1に記載の方法において、前記蒸気加熱されたバイオマスが、3−1〜4−1の圧縮比で圧搾されることを特徴とする方法。
- 請求項2に記載の方法において、前記蒸気加熱されたバイオマスが、4−1の圧縮比で圧搾されることを特徴とする方法。
- 請求項1、2または3に記載の方法において、前記含水率が55%〜80%に調整されることを特徴とする方法。
- 請求項4に記載の方法において、前記含水率が65%〜80%に調整されることを特徴とする方法。
- 請求項5に記載の方法において、前記含水率が70%〜75%に調整されることを特徴とする方法。
- 請求項1乃至6の何れか1項に記載の方法において、前記加熱ステップが大気圧で行われることを特徴とする方法。
- 請求項7に記載の方法において、前記時間が10〜60分であることを特徴とする方法。
- 請求項7に記載の方法において、前記時間が10〜30分であることを特徴とする方法
- 請求項7に記載の方法において、前記時間が15〜30分であることを特徴とする方法。
- 請求項7に記載の方法において、前記時間が20分であることを特徴とする方法。
- 請求項7に記載の方法において、前記蒸気加熱されたバイオマスの前記温度が95℃〜99℃の間であることを特徴とする方法。
- 請求項1に記載の方法において、前記蒸気処理されたバイオマスが、ある触媒含有率および65%〜75%の含水率を達成するために、前記水および前処理の触媒が加えられることを特徴とする方法。
- 請求項13に記載の方法において、前記前処理の触媒が、バイオマスの0.2重量%〜2重量%の硫酸濃度の硫酸であることを特徴とする方法。
- 請求項14に記載の方法において、前記硫酸濃度が、前記バイオマスの0.5重量%〜2重量%であることを特徴とする方法。
- 請求項15に記載の方法において、前記硫酸濃度が、前記バイオマスの0.8重量%〜1.0重量%であることを特徴とする方法。
- 請求項1に記載の方法において、前記コンディショニングの前の前記バイオマスの含水率が30〜55%であることを特徴とする方法。
- 請求項1に記載の方法において、80℃のバイオマス温度で、蒸気を用いた前記加熱が55〜60分行われることを特徴とする方法。
- 請求項1に記載の方法において、85℃のバイオマス温度で、蒸気を用いた前記加熱が40〜60分行われることを特徴とする方法。
- 請求項1に記載の方法において、蒸気を用いた前記加熱が、90℃のバイオマス温度において27〜55分行われることを特徴とする方法。
- 請求項1に記載の方法において、95℃のバイオマス温度で、蒸気を用いた前記加熱が20〜40分行われることを特徴とする方法。
- 請求項1に記載の方法において、99℃のバイオマス温度で、蒸気を用いた前記加熱が15〜30分行われることを特徴とする方法。
- 請求項1に記載の方法において、100℃のバイオマス温度で、蒸気を用いた前記加熱が14〜28分行われることを特徴とする方法。
- 請求項1に記載の方法において、前記コンディショニングされたバイオマスが、前記前処理プロセスの前に68〜72重量%の水分を含有することを特徴とする方法。
- 請求項24に記載の方法において、前記バイオマスがトウモロコシ穂軸であることを特徴とする方法。
- 請求項4に記載の方法において、前記コンディショニングされたバイオマスが、前記前処理プロセスの前に68〜72重量%の含水率および0.7重量%〜0.09重量%の硫酸含有率を有することを特徴とする方法。
- 請求項1に記載の方法において、前記コンディショニングされたバイオマスが、トウモロコシ穂軸であり、前記前処理プロセスの前に68〜72重量%の含水率および0.7重量%〜0.09重量%の硫酸含有率を有することを特徴とする方法。
- 請求項1に記載の方法において、前記コンディショニングプロセス中に揮発性気体が放出されることを特徴とする方法。
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US201161508407P | 2011-07-15 | 2011-07-15 | |
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PCT/CA2012/050481 WO2013010271A1 (en) | 2011-07-15 | 2012-07-12 | Conditioning of biomass for improved c5/c6 sugar release prior to fermentation |
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AU2012286490B2 (en) | 2016-08-11 |
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CN103764851B (zh) | 2017-03-08 |
ES2606611T3 (es) | 2017-03-24 |
BR112014000817A2 (pt) | 2017-07-18 |
CA2838560A1 (en) | 2013-01-24 |
RU2014101105A (ru) | 2015-08-27 |
CU20130167A7 (es) | 2014-04-24 |
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CN103764851A (zh) | 2014-04-30 |
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US9150936B2 (en) | 2015-10-06 |
GEP201706615B (en) | 2017-02-10 |
MX353708B (es) | 2018-01-24 |
CL2014000121A1 (es) | 2014-08-18 |
CU24122B1 (es) | 2015-08-27 |
UA112443C2 (uk) | 2016-09-12 |
EP2732055B1 (en) | 2016-09-14 |
CO7020852A2 (es) | 2014-08-11 |
JP2014520538A (ja) | 2014-08-25 |
IL230456A0 (en) | 2014-03-31 |
PH12014500082A1 (en) | 2019-07-03 |
DK2732055T3 (en) | 2017-01-09 |
MX2013015299A (es) | 2015-04-13 |
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