METHOD FOR OBTAINING BIOFUEL FROM LIGNOCELLULOSIC AND/OR AMYLACEOUS BIOMASS

• US 20150322463A1
• Filed: 12/03/2013
• Published: 11/12/2015
• Est. Priority Date: 12/13/2012
• Status: Abandoned Application

• Current Assignee: Braerg-Groupo Brasileiro De Pesquisas Especializadas Ltda.
• Original Assignee: Braerg-Groupo Brasileiro De Pesquisas Especializadas Ltda.
• Inventors: MARQUES, Douglas Spalato, MARQUES, Marcos Spalato
• Application Number:
  US14/650,636
• Publication Number:
  US 20150322463A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C10L 1/02 essentially based on components consisting of carbon, hydrogen, and oxygen only
• CPC Class Codes: C10L 2200/0469 Renewables or materials of biological origin
• CPC Class Codes: C10L 2290/26 Composting, fermenting or anaerobic digestion fuel components or materials from which fuels are prepared
• CPC Class Codes: C10L 2290/544 Extraction for separating fractions, components or impurities during preparation or upgrading of a fuel
• CPC Class Codes: C12P 7/10 substrate containing cellulosic material
• CPC Class Codes: Y02E 50/10 Biofuels, e.g. bio-diesel
• CPC Class Codes: Y02E 50/30 Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

A method for obtaining biofuel from lignocellulosic and/or amylaceous biomass through fermentation in at least one step by using a consortium of microorganisms in order to obtain sugars that later will be converted into alcohols by using environmentally friendly and economically viable methods, as opposed to conventional acid and enzymatic hydrolysis.

Claims

1. Method for obtaining biofuel from lignocellulosic and/or amylaceous biomass comprising the steps of:

a) reduction of particles of the lignocellulosic and/or amylaceous biomass;

b) fermentation of the mash by using one or more microorganisms capable of producing and modulating production of enzymes that degrade lignin, cellulose, and hemicelluloses at temperatures between 10°

C. and 80°

C., and ph between 2.0 and 12.0, followed by fermentation by using one or more microorganisms, preferably those of the Baccilus ssp. genus, at temperatures between 10°

C. and 50°

C., and pH between 2.0 and 12.0, and between 2.0 and 10.0% of one or more microorganisms of the Saccharomyces spp. genus at temperatures between 10°

C. and 60°

C. and, pH between 2.0 and 12.0;

c) extraction of alcohols.

2. Method for obtaining biofuel from lignocellulosic and/or amylaceous biomass according to claim 1 wherein, optionally, said fractionated lignocellulosic or amylaceous biomass goes through the step of sterilization.

3. Method for obtaining biofuel from lignocellulosic and/or amylaceous biomass according to claim 1 wherein lignin, cellulose, and hemicelluloses are degraded by one or more microorganisms of the following genera:

Phanerochaete ssp., Gloeophylum ssp., Phellinus ssp., Coriolopsis ssp., Clostrodium ssp., Armillaria ssp., Chaetomium ssp., Serpulaceae ssp., Fibroporia ssp., Coniophora ssp., Aspergillus ssp. or Trichoderma ssp.

4. Method for obtaining biofuel from lignocellulosic and/or amylaceous biomass according to claim 1 wherein said amylolytic microorganism is preferably of the Baccilus spp. genus.

5. Method for obtaining biofuel from lignocellulosic and/or amylaceous biomass according to claim 1 wherein between 1.0 and 10.0% w/v of the ammonium salt composition is preferably added during fermentation, using one or more amylolytic microorganisms.