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Novel method for producing ethanol through steam explosion of cereal starchy material

A starchy raw material and a new method technology, applied in the direction of biofuel, fermentation, etc., can solve the problems of long process duration, large equipment footprint, and low degree of automation, so as to improve the working environment, reduce the equipment footprint, The effect of equipment input cost reduction

Inactive Publication Date: 2011-04-06
HENAN AGRICULTURAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two steps of raw material crushing and cooking in the current production technology have high energy consumption, low degree of automation, complex process, large equipment footprint, long process duration and large manpower input.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A new method of ethanol production by steam explosion of corn starchy raw materials, dry the wheat naturally, then send it into and fill the explosion cylinder, close the explosion cylinder, pass saturated steam with a pressure of 4kPa and a temperature of 210°C into the explosion cylinder to maintain the pressure After 2 seconds, open the explosion cylinder and blast for 0.00875 seconds; collect the blasting materials, and the yield of starch hydrolysis sugar is measured to reach 95%, and the detection rate of actinomycetes, mold, yeast, etc. is 0, and then saccharification and fermentation are carried out to produce ethanol.

Embodiment 2

[0017] A new method of producing ethanol by steam explosion of corn starchy raw materials. The mixture of corn and sorghum is naturally dried, then fed into and filled with the explosion cylinder, closed, and saturated steam with a pressure of 1kPa and a temperature of 230°C is passed into the explosion cylinder. Cylinder, after maintaining the pressure for 120 seconds, open the explosion cylinder and blast for 1 second; collect the blasting materials, and the yield of starch hydrolyzed sugar reaches 96%, and the detection rate of actinomycetes, mold, yeast, etc. is 0, and then saccharification, Fermentation produces ethanol.

Embodiment 3

[0019] A new method of ethanol production by steam explosion of corn starchy raw materials, the mixture of rice and sorghum is dried naturally, then sent into and filled with the explosion cylinder, the explosion cylinder is closed, and saturated steam with a pressure of 3kPa and a temperature of 240°C is passed into the explosion cylinder. Cylinder, after maintaining the pressure for 60 seconds, open the explosion cylinder and blast for 0.5 seconds; collect the blasting materials, and measure the yield of starch hydrolyzed sugar to reach 98%, and the detection rate of actinomycetes, mold, yeast, etc. to be 0, and then carry out saccharification, Fermentation produces ethanol.

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PUM

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Abstract

The invention belongs to the technical field of bio-ethanol production, in particular relating to a novel method for producing ethanol through the steam explosion of a cereal starchy material, which comprises the following steps: pre-treating the cereal starchy material; carrying out the steam explosion for 0.00875 to 1s under the steam pressure of 1-4kPa, and the pressure time is kept for 2-120s; and collecting the exploded material; and then carrying out saccharification and fermentation to produce the ethanol. The novel method for producing the ethanol through the steam explosion of the cereal starchy material is applied, so that the process automation is improved, the production cost of products is reduced by 10-30%, the production resources and space can also be saved, thereby playing important roles in the energy saving and emission reduction as well as the improved economic efficiency.

Description

technical field [0001] The invention belongs to the technical field of bioethanol production, and in particular relates to a new method for producing ethanol by steam explosion of corn starch raw materials. Background technique [0002] Cereal starchy raw materials include wheat, corn, rice, sorghum, etc. The production of ethanol or fuel ethanol is an important part of the intensive processing of cereal starchy raw materials, and it also lays the foundation for the application of ethanol or fuel ethanol in food, energy, chemical and other fields. Necessary and sufficient material basis. [0003] At present, the production of ethanol or fuel ethanol mainly uses grain starchy raw materials such as wheat, corn, and rice. The annual production of ethanol in my country is about 4 million tons, and fuel ethanol is nearly 2 million tons. The production of ethanol or fuel ethanol is the conversion and An important way of deep processing. At present, in the process of producing eth...

Claims

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Application Information

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IPC IPC(8): C12P7/06
CPCY02E50/17Y02E50/10
Inventor 宋安东张百良任天宝于富强于正道王风芹谢慧邱盼张洋
Owner HENAN AGRICULTURAL UNIVERSITY
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