Novel methods for producing fuel ethyl alcohol by using banana

A fuel ethanol and banana technology, applied in the field of fuel ethanol preparation, can solve the problems of low yield per mu, high production cost, intolerance to storage and perishability, etc., reduce equipment investment cost, improve waste utilization rate, and improve land utilization rate. The effect on productivity

Inactive Publication Date: 2009-07-29
张永北
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AI Technical Summary

Problems solved by technology

Although the above-mentioned method has certain feasibility, there are many limitations such as high production cost, low yield, or poor production stability in these production methods due to the following shortcomings in the raw materials used: 1. sweet sorghum It is a high-yielding crop with a short growth cycle, but its harvest season is too concentrated. In the process of large-scale industrialization, especially in the warm, humid and typhoon-prone southern regions of my country, it is not resistant to storage and is easy to rot.
Therefore, so far, the preparation of fuel ethanol from sweet sorghum has not been able to form a large industry in my country after years of hard work; ② cassava and sweet potato are starchy raw materials, and the main production areas are in the south of my country, but the yield per mu is not high in most areas , long growth cycle, occupying a lot of cultivated land, high planting cost, complicated process, energy consumption, water consumption, and serious pollution; ③Sugar cane and sugar beet are important raw materials for edible sugar in my country, and edible sugar is a material in short supply in our country. In order to ensure the output of edible sugar , my country does not encourage the use of sugar raw materials to produce fuel ethanol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Collect banana bulbs, peel them, crush them and dry them in the sun, store them, take 30kg of dry powder, and measure the water content to be 14%. Add 50kg of water to make pulp, cook for 1 hour, add α-amylase, cool, filter to obtain 75kg of sugar juice with a sugar content of 17.2%, add alcoholic yeast, ferment for more than 18 hours, directly distill to obtain 7.2kg of 80% alcohol, and dehydrate to obtain 99.8% absolute ethanol 6.2kg.

Embodiment 2

[0027] Collect banana bulbs, peel them, measure the water content to be 89.5%, take 100kg, beat, cook for 1 hour, add α-amylase, hydrolyze for more than 10 hours, filter, obtain 70kg of sugar juice with a sugar content of 9.1%, add alcoholic yeast, and ferment More than 18 hours, directly distilled to obtain 3.2kg of 80% alcohol, and dehydrated to obtain 3.01kg of 99.8% fuel ethanol.

Embodiment 3

[0029] Collect plantain bulbs, peel them, measure the water content to 87.5%, take 100kg, beat the pulp, cook for 1 hour, add α-amylase, hydrolyze for more than 10 hours, filter, obtain 74kg of sugar juice with a sugar content of 8.7%, add alcoholic yeast, and ferment More than 18 hours, directly distilled to obtain 3.35kg of 80% alcohol, and dehydrated to obtain 3.1kg of 99.8% fuel ethanol.

[0030] According to the above examples, it can be seen that the water content of banana and plantain bulbs is close to 90%, and most of them are water. Each ton of corms can produce 30 kg of ethanol after hydrolysis with enzymes. About 33 tons of raw materials are needed to produce 1 ton of ethanol. If the purchase price is controlled at 100 yuan / ton, the raw material cost per ton of ethanol can be controlled within 3300 yuan. In actual production, the yield per mu of bananas and plantain bulbs cultivated according to fruits can reach more than 10 tons, and ethanol can be produced per ...

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PUM

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Abstract

The invention provides a method for preparing fuel ethanol. In the method, banana or plantain is used as raw material and the fuel ethanol is obtained by conventional zymotechnique. The method of the invention can expand raw material resources of the fuel ethanol in a large scale, reduce production cost of the fuel ethanol and improve production efficiency, thus bringing about numerous social and economic benefits.

Description

technical field [0001] The invention relates to a method for preparing fuel ethanol, in particular to a method for preparing fuel ethanol by using non-grain crop bananas and plantains as raw materials. Background technique [0002] In order to ensure that the development of the bioenergy industry does not compete with humans and animals for food, and does not compete with food for land, so as to ensure national food security, my country encourages the use of non-food crop raw materials to prepare fuel ethanol. However, considering the fact that our country has a lot of people and little land, the ideal fuel ethanol production method is to choose high-yielding crops with large biomass as raw materials. The existing fuel ethanol production methods mainly use non-grain crops such as sweet sorghum, cassava, sweet potato, sugar cane, and sugar beet as raw materials, and produce ethanol through appropriate fermentation treatment. Although the above-mentioned method has certain fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/10C10L1/02
CPCY02E50/16Y02E50/10
Inventor 张永北
Owner 张永北
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