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Bioreactor for producing ethanol by using lignocellulose materials with high solid content

A lignocellulose, high solids content technology, applied in liquid production bioreactors, solid-phase fermentation bioreactors, special-purpose bioreactors/fermenters, etc., to achieve the effect of improving conversion rate and enhancing metabolic capacity

Inactive Publication Date: 2010-11-17
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reactor dedicated to this complex special system and special reaction process has not been reported in China so far.

Method used

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  • Bioreactor for producing ethanol by using lignocellulose materials with high solid content
  • Bioreactor for producing ethanol by using lignocellulose materials with high solid content
  • Bioreactor for producing ethanol by using lignocellulose materials with high solid content

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Embodiment Construction

[0026] A specific embodiment of a reactor for producing ethanol by fermenting lignocellulosic raw materials with high solid content of the present invention is provided below.

[0027] Please see attached Figure 1-3 , a high solid content lignocellulosic raw material fermentation ethanol production reactor, at least including a tank 2; the upper end of the tank 2 is provided with a feeding port 5 and a tank cover 4, the lower end is provided with a discharge port 8, and the tank body 2 is provided with There are sensor jacks 6 and combined stirring paddles 3; the combined stirring paddles 3 include a positive spiral propeller 13, a turbine / airfoil stirring impeller 14 and a bottom propeller 15; the positive spiral propeller 13 is fixed on the stirring shaft 10 through a support rod 11 and circle around the stirring shaft 10 from top to bottom to form a frame; On the stirring shaft 10 between the ends, the number of layers of the turbine / airfoil stirring paddle 14 is 1 to 3 l...

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Abstract

The invention relates to a bioreactor for producing ethanol by using lignocellulose materials with high solid content, which at least comprises a tank body; a feeder comprises a rubbing unit, the tank body is provided with a charge opening, a discharge opening, a sterile air inlet, a gas disperser and a sensor jack. An anti-spiral screw belt is located at the upper part of the combined agitator blade and the direction of the screw belt is opposite to that of the screw belt of the combined agitator blade. The invention has the advantages that the enzymolysis and fermentation efficiencies of the lignocellulose materials which are rubbed by the feeder are increased, the combined agitator blade ensures that the materials in the tank body are mixed adequately, and transfer mass and heat, the anti-spiral screw belt eliminates the high viscosity bubble or bubble layer generated by the system immediately, parameters are measured accurately under the condition that the positioning way of the sensor does not influence the full mixing and transferring of the system; and the gas disperser disperses the gas introduced to the tank under the condition of not influencing that the system is adequately mixed and transferred.

Description

【Technical field】 [0001] The invention relates to the technical field of bioreactors, in particular to a bioreactor for producing ethanol from lignocellulosic raw materials with high solid content. 【Background technique】 [0002] The use of lignocellulosic raw materials to produce cellulosic ethanol, that is, the second-generation bioethanol, can not only replace part of the use of gasoline, effectively alleviate the crisis of fossil energy depletion, but also greatly reduce the emission of greenhouse gases, so it has become the current research topic of scientists. hotspot. [0003] In general, it is economically viable for the ethanol fermentation industry only when the concentration of ethanol in the beer is higher than 5% (vol). Therefore, to produce cellulosic ethanol from lignocellulosic raw materials, the solid content of the substrate should not be lower than 15% (w / w) (assuming that the total content of cellulose and mannan in lignocellulosic raw materials is 60%, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/21C12M1/02C12M1/36C12M1/08
CPCC12M21/12C12M21/16C12M29/06C12M27/02
Inventor 鲍杰张建戴干策张家庭楚德强黄娟
Owner EAST CHINA UNIV OF SCI & TECH
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