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Bio butanol co-digestion bio-ethanol production method

A bio-ethanol and bio-butanol technology, applied in microorganism-based methods, biochemical equipment and methods, fermentation and other directions, can solve the problems of large total energy consumption and large sewage discharge, and achieve the saving of water for mixing, management cost saving, The effect of saving processing investment and management costs

Active Publication Date: 2012-07-25
GUANGDONG ZHONGKE TIANYUAN NEW ENERGY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a production method of bio-butanol combined fermentation bioethanol that solves the defects of high total energy consumption and high sewage discharge in bio-butanol fermentation production, realizes low energy consumption in bio-butanol production, and no waste water discharge

Method used

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  • Bio butanol co-digestion bio-ethanol production method

Examples

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Embodiment 1

[0028] see figure 1 A method for producing bio-butanol combined fermentation of bio-ethanol, comprising the following steps: starchy raw materials are first mixed, cooked and gelatinized to form gelatinized mash containing 8-8.5% of starchy raw materials, and after liquefaction Cool, add acetone-butanol strains, and carry out bio-butanol fermentation. After the fermented mature mash is distilled and the total solvent is extracted (that is, butanol, acetone, ethanol is extracted), the distillation waste water is not discharged at all, and is used for bioethanol The raw material mixture produced is cooked and gelatinized to form gelatinized mash. After liquefaction and cooling, ethanol fermenting yeast and glucoamylase are added to carry out ethanol fermentation. The fermented mature mash is distilled to extract ethanol. Fermentation process wastewater treatment method. In the method of this embodiment, the wastewater after bio-butanol production does not need to be discharged,...

Embodiment 2

[0030] refer to figure 2, a method for producing bio-butanol combined fermentation bioethanol, comprising the following steps, starchy raw materials are first mixed, cooked and gelatinized to form gelatinized mash containing 30-40% of starchy raw materials, and after liquefaction Cool, add acetone-butanol strains, and carry out bio-butanol fermentation. After the fermentation, the mixed mature mash is distilled first, and after the total solvent is extracted (that is, butanol, acetone, and ethanol are extracted), the distillation wastewater is equivalent to the ethanol production process. The liquefied mash in it can be used for bioethanol production, adding ethanol fermented distiller's yeast and glucoamylase to carry out ethanol fermentation, and the fermented mature mash is distilled again to extract the ethanol, and the wastewater after distillation is treated according to the existing wastewater treatment method of ethanol fermentation process deal with.

Embodiment 3

[0032] refer to image 3 , a method for producing bio-butanol combined fermentation bioethanol, comprising the following steps, starchy raw materials are first mixed, cooked and gelatinized to form gelatinized mash containing 30-40% of starchy raw materials, and after liquefaction Cool, add acetone-butanol strains, and carry out bio-butanol fermentation. The mature mash after fermentation is directly used for bioethanol production without distillation, and the added weight accounts for 0.5-1.5% (w / v) active dry yeast for ethanol fermentation or 5-30% (v / v) by volume ratio (v / v) of distiller's yeast for ethanol fermentation expanded through activation treatment and 100-200 units / gram of raw material glucoamylase to carry out ethanol Fermentation, the fermented mature mash is distilled to obtain acetone, butanol and ethanol products, because there is no need to carry out two distillations as in Examples 1 and 2, saving distillation steam. The wastewater after distillation is t...

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Abstract

The invention discloses a bio butanol co-digestion bio-ethanol production method. Bio butanol fermentation is carried out on gelatinized mash containing starchiness raw material and then bio-ethanol fermentation is carried out. The invention has the advantages that: the bio butanol fermentation technology and the bio-ethanol fermentation technology are integrated and improved, material conveying power consumption, steam for heating, cooling water usage and management cost in production process are saved, waste water discharge of butanol production process is avoided, and meanwhile the generalconcentration of the general solvent, namely butanol, acetone and alcohol, in the mature mash can be improved and effect of obvious energy conservation and emission reduction is achieved.

Description

technical field [0001] The invention relates to bio-butanol and bio-ethanol fermentation production technology. Background technique [0002] Butanol is an important chemical raw material, which can be used as a solvent for paints and surface coatings and in the production of various plastic and rubber products. It can also produce butyl acetate, butyl acrylate, butyraldehyde, butyric acid, butylamine and lactic acid Chemical products such as butyl ester. Butanol is also a new type of biofuel with great potential, known as the second-generation biofuel, which is superior to ethanol in replacing gasoline as fuel: butanol contains 25% higher calorific value than ethanol, which is equivalent to gasoline; butanol The flash point of alcohol is higher than that of ethanol, and it is safer to use; compared with ethanol, butanol is more soluble in gasoline and diesel, but not easily soluble in water; butanol is less corrosive, easy to transport, and can be directly applied to autom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/16C12P7/06C12R1/145C12R1/865
CPCY02E50/17Y02E50/10
Inventor 陈宪笙唐兆兴余伟俊陈柏铨姜新春李智斌
Owner GUANGDONG ZHONGKE TIANYUAN NEW ENERGY SCI & TECH
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