BR0113262A - Processo para a produção de etanol com hidrólisse de ácido diluìdo utilizando lignocelulosicos parcialmente secos - Google Patents

Processo para a produção de etanol com hidrólisse de ácido diluìdo utilizando lignocelulosicos parcialmente secos

Info

Publication number
BR0113262A
BR0113262A BR0113262-8A BR0113262A BR0113262A BR 0113262 A BR0113262 A BR 0113262A BR 0113262 A BR0113262 A BR 0113262A BR 0113262 A BR0113262 A BR 0113262A
Authority
BR
Brazil
Prior art keywords
stage
ignition
acid
tank
biomass
Prior art date
Application number
BR0113262-8A
Other languages
English (en)
Inventor
Quang A Nguyen
Fred A Keller
Melvin P Tucker
Original Assignee
Midwest Research Inst
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
Application filed by Midwest Research Inst filed Critical Midwest Research Inst
Publication of BR0113262A publication Critical patent/BR0113262A/pt

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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
    • C12P7/00Preparation of oxygen-containing organic compounds
    • C12P7/02Preparation of oxygen-containing organic compounds containing a hydroxy group
    • C12P7/04Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
    • C12P7/06Ethanol, i.e. non-beverage
    • C12P7/08Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
    • C12P7/10Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
    • 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
    • C12P7/00Preparation of oxygen-containing organic compounds
    • C12P7/02Preparation of oxygen-containing organic compounds containing a hydroxy group
    • C12P7/04Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
    • C12P7/06Ethanol, i.e. non-beverage
    • C12P7/08Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13KSACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00Glucose; Glucose-containing syrups
    • C13K1/02Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
    • 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Emergency Medicine (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Processing Of Solid Wastes (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Catalysts (AREA)

Abstract

"PROCESSO PARA A PRODUçãO DE ETANOL COM HIDRóLISE DE áCIDO DILUìDO UTILIZANDO LIGNOCELULOSICOS PARCIALMENTE SECOS". Em um processo para a conversão de biomassa de lignocelulose em etanol, o aperfeiçoamento de obtenção de rendimentos maiores de açúcares solúveis fermentáveis através da secagem de secagem de partículas de biomassa impregnadas com ácido, compreendendo: a)alimentação de biomassa de lignocelulose úmida num impregnador ácido para deixa-la encharcada em ácido e secagem da biomassa encharcada de ácido até a obtenção de um produto com cerca de 30% a 35% de sólidos em massa; b)desumidificação da biomassa encharcada de ácido através de secagem ou centrifugação para impedi a compactação da biomassa e alcançar um teor de cerca de 40% a 60% de sólidos em massa; c)submissão da biomassa impregnada com ácido a um reator de hidrólise de primeiro estágio numa temperatura de 130<198>C á 220<198>C e descarga do hidrolisado formado em um tanque de ignição numa temperatura de cerca de 120<198>C até 140<198>C para a hidrólise da maior parte dos oligossacarídeos solúveis remanescentes para açúcares monoméricos, e ignição do hidrolisado remanescente dentro de um segundo tanque de ignição numa temperatura mais baixa do que a do primeiro tanque de ignição - com o segundo tanque de ignição servindo como um tanque de surto de alimentação para um extrator contra-corrente; d)lavagem do hidrolisado, ajuste do pR do extrato de açúcar até cerca de 5, e recuperação de mais do que 95% dos açúcares solúveis na pasta fluida de hidrolisado do primeiro estágio por meio de um extrator contra-corrente, e)submissão dos sólidos de biomassa previamente tratada do primeiro estágio lavados remanescentes a um impregnador do segundo estágio de sal metálico e ácido e desumidificação através de secagem ou centrifugação para impedir a compactação da bi-omassa para alcançar cerca de 40% a 60% de sólidos em massa; f)submissão da biomassa impregnada com ácido e sais metálicos a um reator de hidrólise do segundo estágio numa temperatura de 190<198>C a 240<198>C e descarga do hidrolisado formado em um tanque de ignição, numa temperatura de cerca de 120<198>C a 140<198>C para hidrolisar a maior parte dos oligossacarídeos solúveis remanescentes para açúcares monoméricos e ignição do hidrolisado remanescente em um segundo tanque de ignição numa temperatura mais baixa do que a do primeiro tanque de ignição, com o segundo tanque de ignição servindo como um tanque de surto de alimentação para os fermentadores do segundo estágio; g)resfriamento do extrato ajustado por pH proveniente do extrator contra-corrente, alimentação do extrato em um fermentador de primeiro estágio e aspersão com ar do fermentador de primeiro estágio at a rate suficiente para promover um crescimento de levedura suficiente para compensar a perda através dos fermentadores do segundo estágio; h) Ajuste, do pH de uma pasta fluida de hidrolisado do segundo estágio para 4,5, resfriamento da pasta fluida e adição da mesma dentro do topo do primeiro fermentador de um conjunto seq³encial de dois fermentadores nos fermentadores do segundo estágio, bombeamento de caldo desde o fundo dos fermentadores de primeiro estágio até os fermentadores do segundo estágio ao passo em que a levedura se encontra ainda na fase de crescimento por um período suficiente para consumir mais do que 95% dos açúcares fermentáveis; e i) Recuperação do etanol.
BR0113262-8A 2000-08-09 2001-04-26 Processo para a produção de etanol com hidrólisse de ácido diluìdo utilizando lignocelulosicos parcialmente secos BR0113262A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/634,978 US6423145B1 (en) 2000-08-09 2000-08-09 Dilute acid/metal salt hydrolysis of lignocellulosics
PCT/US2001/013365 WO2002018610A1 (en) 2000-08-09 2001-04-26 Ethanol production with dilute acid hydrolysis using partially dried lignocellulosics

Publications (1)

Publication Number Publication Date
BR0113262A true BR0113262A (pt) 2004-01-13

Family

ID=24545912

Family Applications (2)

Application Number Title Priority Date Filing Date
BR0113262-8A BR0113262A (pt) 2000-08-09 2001-04-26 Processo para a produção de etanol com hidrólisse de ácido diluìdo utilizando lignocelulosicos parcialmente secos
BRPI0113263A BRPI0113263B1 (pt) 2000-08-09 2001-08-02 processo de hidrólise de lignocelulósicos com sais metálicos/ácidos diluídos

Family Applications After (1)

Application Number Title Priority Date Filing Date
BRPI0113263A BRPI0113263B1 (pt) 2000-08-09 2001-08-02 processo de hidrólise de lignocelulósicos com sais metálicos/ácidos diluídos

Country Status (8)

Country Link
US (2) US6423145B1 (pt)
EP (2) EP1307575A1 (pt)
AU (2) AU2001257270A1 (pt)
BR (2) BR0113262A (pt)
CA (2) CA2419658A1 (pt)
DK (1) DK1307576T3 (pt)
ES (1) ES2324855T3 (pt)
WO (2) WO2002018610A1 (pt)

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