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1. US20130260428 - Process for preparing biodiesel from renewable oil and fat catalyzed by lipase with online dehydration

Office United States of America
Application Number 13883747
Application Date 04.11.2011
Publication Number 20130260428
Publication Date 03.10.2013
Grant Number 09249437
Grant Date 02.02.2016
Publication Kind B2
IPC
C12P 7/64
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
64Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
C10L 1/02
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
1Liquid carbonaceous fuels
02essentially based on components consisting of carbon, hydrogen, and oxygen only
CPC
C12P 7/649
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
64Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
6436Fatty acid esters
649Biodiesel, i.e. Fatty acid alkyl esters
C10L 1/026
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
1Liquid carbonaceous fuels
02essentially based on components consisting of carbon, hydrogen, and oxygen only
026for compression ignition
C10L 2200/0476
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
2200Components of fuel compositions
04Organic compounds
0461Fractions defined by their origin
0469Renewables or materials of biological origin
0476Biodiesel, i.e. defined lower alkyl esters of fatty acids first generation biodiesel
C10L 2290/08
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
2290Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
08Drying or removing water
C10L 2290/26
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
2290Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
26Composting, fermenting or anaerobic digestion fuel components or materials from which fuels are prepared
C10L 2290/542
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
2290Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
54Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
542Adsorption of impurities during preparation or upgrading of a fuel
Applicants Dehua Liu
Tsinghua University
Wei Du
Xuebing Zhao
Luole Zhu
Inventors Dehua Liu
Wei Du
Xuebing Zhao
Luole Zhu
Priority Data 2010 1 0536576 04.11.2010 CN
Title
(EN) Process for preparing biodiesel from renewable oil and fat catalyzed by lipase with online dehydration
Abstract
(EN)

Disclosed is a process for preparing biodiesel from renewable oil and fat catalyzed by lipase with online dehydration. The method uses a short chain alcohol ROH as an acyl-acceptor, and utilizes a lipase as the catalyst to catalyze transesterification reaction of oil and fat feedstock with said short chain alcohol, so as to synthesize biodiesel; and online dehydration with a membrane or a molecular sieve is carried out during the whole process or part of the reaction process. Such online dehydration process greatly simplifies the operation procedure, and provides good economic and environmental benefits.