Method for producing fuel ethanol and by-product rice DDGS by rice processing

A technology of fuel ethanol and by-products, applied in the direction of biofuels, fermentation, etc., can solve the problems of waste of food resources, increase of process costs, etc., and achieve the effect of improving utilization rate, improving economic benefits and profits, and increasing food safety problems

Active Publication Date: 2019-05-17
JILIN COFCO BIOCHEM +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although rice can also be used to produce fuel ethanol and produce high-quality by-product DDGS, multiple processes are still required to produce rice from rice, which not only increases the process cost but also causes waste of food resources, etc.

Method used

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  • Method for producing fuel ethanol and by-product rice DDGS by rice processing
  • Method for producing fuel ethanol and by-product rice DDGS by rice processing
  • Method for producing fuel ethanol and by-product rice DDGS by rice processing

Examples

Experimental program
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Effect test

Embodiment 1

[0058] (1) Pretreatment of rice crushing: The aged grains with a storage period of 3 years are passed through a specific gravity destoner (model: TQSF200), an electromagnetic separator (model: RCDB), and a drum grading screen (model: GS1530) in order to remove Impurities such as sand, stone, ironware, and braids. The rice under the drum grading sieve passes through the sand-water separator as part of the rice flour, the rice on the sieve is further pulverized by a hammer mill (model: PC-0604), and the rice under the sieve and the rice on the sieve are crushed The particle size of the powder is to pass through a 25-mesh sieve. After mixing, the material and dust and other impurities are separated by a CZT cyclone separator to obtain rice flour that passes through a 25-mesh sieve.

[0059] (2) Preparation of liquefied mash: Mix rice flour and water evenly to form a slurry, wherein the ratio of rice flour to water is 1:2, adjust the pH to 5.3 with sulfuric acid, and control the d...

Embodiment 2

[0065] (1) Pretreatment of rice crushing: the aged grains with a storage period of 4 years are passed through a specific gravity stone remover (model: TQSF200), an electromagnetic iron remover (model: RCDB), and a drum grading screen (model: GS1530) to remove Impurities such as sand, stone, ironware, and braids. The rice under the drum grading sieve passes through the sand-water separator as part of the rice flour, the rice on the sieve is further pulverized by a hammer mill (model: PC-0604), and the rice under the sieve and the rice on the sieve are crushed The particle size of the powder is to pass through a 25-mesh sieve. After mixing, the material and dust and other impurities are separated by a CZT cyclone separator to obtain rice flour that passes through a 25-mesh sieve.

[0066] (2) Preparation of liquefied mash: mix rice flour and water evenly to form a slurry, wherein the material-water ratio of rice flour is 1:2, adjust the pH to 5.3 with sulfuric acid, and control ...

Embodiment 3

[0072] (1) Pretreatment of rice crushing: The aged grains with a storage period of 5 years are passed through a specific gravity stone remover (model: TQSF200), an electromagnetic iron remover (model: RCDB), and a drum grading screen (model: GS1530) to remove Impurities such as sand, stone, ironware, and braids. The rice under the drum grading sieve passes through the sand-water separator as part of the rice flour, the rice on the sieve is further pulverized by a hammer mill (model: PC-0604), and the rice under the sieve and the rice on the sieve are crushed The particle size of the powder is to pass through a 25-mesh sieve. After mixing, the material and dust and other impurities are separated by a CZT cyclone separator to obtain rice flour that passes through a 25-mesh sieve.

[0073] (2) Preparation of liquefied mash: mix rice flour and water evenly to form a slurry, wherein the material-water ratio of rice flour is 1:2, adjust the pH to 5.3 with sulfuric acid, and control ...

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Abstract

The invention relates to a method for producing fuel ethanol and by-product rice DDGS by using rice as a raw material. The method comprises the following steps: (1) rice smashing preprocessing; (2) preparing liquefied mash; (3) preparing wine mash; (4) preparing fermented mature mash; (5) preparing fuel ethanol; (6) preparing rice DDGS. The product fuel ethanol obtained from the method has high volume fraction of ethanol, and the quality conforms to the national standard GB 18350-2013 Denatured Fuel Ethanol. In addition, a detection result of mycotoxin in the by-product rice DDGS is lower thanthe limit standard, and the protein content is high. Therefore, the industrial production of the rice processed fuel ethanol and the by-product rice DDGS is achieved, the risk that the harmful mycotoxin enters a food chain system is avoided and causes the mycotoxin exceeding the standard in the DDGS is avoided, the protein content in the DDGS is increased, and the comprehensive utilization valueof the rice is greatly improved.

Description

technical field [0001] The invention relates to the field of fuel ethanol production, in particular to a method for processing rice to produce fuel ethanol and a by-product of rice distillers grains and solubles thereof (Distillers Dried Grains with Solubles, DDGS for short). Background technique [0002] In recent years, with the intensification of the energy crisis, as one of the future alternative fuels, the demand for ethanol is increasing. Fuel ethanol is a renewable green and clean energy. If it is mixed with gasoline at 10% to form ethanol gasoline for vehicles, it will alleviate the shortage of fossil energy, effectively reduce carbon emissions, and greatly reduce the pollution of harmful substances in automobile exhaust. , protecting the environment and so on have a very important role. At present, my country's fuel ethanol production is about 2.6 million tons per year, accounting for only 3% of the global fuel ethanol production, ranking third, and there is a clea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06C12P21/00
CPCY02E50/10
Inventor 佟毅王灿潘忠孙振江许克家田芳叔谋李凡吴延东
Owner JILIN COFCO BIOCHEM
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