Production of alcohol fuel

A production method and technology of fuel ethanol, which can be applied to fuels, biofuels, liquid carbon-containing fuels, etc., and can solve problems such as excessive consumption, depletion, and environmental damage

Inactive Publication Date: 2005-07-27
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there have been two serious problems: one is that oil is a non-renewable resource, and it is exhausted due to excessive exploitation and consumption; the other is that the use of oil as fuel and chemical raw materials has caused serious environmental damage. especially CO 2 greenhouse effect
The setting of the technological process improves the flexibility of the alcohol production unit, but will increase the investment in the construction of the unit

Method used

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  • Production of alcohol fuel
  • Production of alcohol fuel
  • Production of alcohol fuel

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The process of producing fuel ethanol from starchy raw materials such as corn, rice, wheat, sorghum, dried potato, and cassava, such as figure 1 As shown, in this embodiment, corn is used as raw material to produce fuel ethanol, and the process of other starchy raw materials is roughly the same.

[0030] The raw corn is crushed, and the crushing method can be wet crushing, dry crushing, or semi-dry crushing. Stir with water, adjust the concentration of the powder slurry to be 31% of dry matter content, and the pH value is 4.5. Add amylase, the total amount of amylase added is 2.5 units / gram of raw material, first add 25% of the total amount. Steam cooking is added, the cooking temperature is 80°C, and the cooking time is 30 minutes. After cooking, the starch slurry is sent to the jet liquefier for jet liquefaction. The heating temperature of the material in the jet liquefier is 105°C, and the residence time is 15 minutes to complete a liquefaction process. After com...

Embodiment 2

[0035] The process of producing fuel ethanol from sugary raw materials such as beet juice, sugarcane juice, molasses, etc. figure 2 As shown, the present embodiment is the production of fuel ethanol with molasses as raw material.

[0036] The raw material molasses is sent to the pretreatment tank after precipitation and slag removal, and water is added to adjust the sugar concentration to 24%, and acid is added to adjust the pH value of the sugar liquid to 3.5. A small part of the sugar solution with adjusted concentration and acidity is sent to the distiller's multiplication tank, and most of it is sent to the first tank of the fermentation tank. After the active dry yeast is activated in the activation tank, it is sent to the distiller's mother breeding tank for proliferation and cultivation. The qualified distiller's mash is continuously sent to the first tank of the fermenter.

[0037] The implementation process of fermentation process, rectification process and molecul...

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Abstract

Alcohol fuel can be produced by: treating raw materials, fermenting, refining, molecular sieve adsorption dewatering, and waste liquid treating. A thermal coupling is used to connect dewatering and condense distilling procedures, i.e., gas alcohol from refining process is fed to molecular adsorption dewatering process after thermal coupling condensation and distillation. Heat energy released from cold condensation is used as heat energy for distillation. None of energy is needed any more. The raw materials may be corn, rice, wheat, Chenese sorghum, dry sweet potato, cassawa, sugarcane juice, sugarbeet juice, or green cyrup, etc.

Description

technical field [0001] The present invention relates to a method for producing fuel ethanol from starchy or sugary raw materials. Background technique [0002] In the 20th century, petroleum was used as the main energy source and the raw material of petrochemicals. However, there have been two serious problems: one is that oil is a non-renewable resource, and it is exhausted due to excessive exploitation and consumption; the other is that the use of oil as fuel and chemical raw materials has caused serious environmental damage. especially CO 2 the greenhouse effect. Based on the above two reasons, people are working hard to develop new renewable energy sources and clean fuels that will not pollute the environment. [0003] Fuel ethanol produced from starchy or sugary raw materials has a combustion performance similar to that of fossil fuels, and its production raw materials are biological sources, which is a renewable energy source. In add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02C12P7/06
CPCY02E50/17Y02E50/10
Inventor 张敏华董秀芹吕惠生刘成刘宗章钱胜华李永辉
Owner TIANJIN UNIV
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