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Preparation method of biological diesel fuel

A technology for biodiesel and raw materials, which is applied in the preparation of liquid hydrocarbon mixtures, biofuels, petroleum industry, etc., can solve the problems of complex process, long process route, waste liquid discharge, etc., and achieve simple process flow, no environmental pollution, raw material easy-to-get effect

Inactive Publication Date: 2011-01-12
张贵洲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these chemical biodiesel preparation technologies have the following disadvantages: complex process, high energy consumption; special solvent recovery device is required; waste liquid is discharged during the production process, polluting the environment
However, the existing biodiesel preparation technology usually requires complex production and synthesis processes, long process routes, large equipment investment, and low enzyme catalytic efficiency. The resulting biodiesel has a low calorific value and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Preparation of fermenter culture medium: the size of the fermenter is 10m 3 , medium capacity is 6.5m 3 . The content of each component of the medium is: starch 195kg, yeast powder 130kg, corn steep liquor 325kg, CaCO 3 19.5kg, ZnSO 4 1.3kg, MgSO 4 1.6kg, add water to 6.5m 3 , pH4.5-4.8, steam sterilized.

[0017] Take 1000kg of sweet potatoes, heat the raw materials to 100-110°C, and evaporate the water in them;

[0018] Fermentation was carried out with Qingda No. 1 strain in the culture medium, the temperature was 45°C, the vacuum degree was 0.080MPa, the pH value was 4.5-5.0, the dosage of Qingda No. 1 strain was 15kg, and the fermentation time was 15 hours;

[0019] Use a centrifuge to separate and remove bacteria, yeast sludge and other impurities, and cool down to normal temperature to obtain biodiesel.

[0020] The resulting biodiesel has a density of 0.89 g / cm 3 , flash point 112°C, viscosity (cst) 6.7, calorific value 45MJ / kg, acid value 0.14mgKOH / g. ...

Embodiment 2

[0023] Preparation of fermenter culture medium: the size of the fermenter is 10m 3 , medium capacity is 6.5m 3 . The content of each component of the medium is: starch 195kg, yeast powder 130kg, corn steep liquor 325kg, CaCO 3 19.5kg, ZnSO 4 1.3kg, MgSO 4 1.6kg, add water to 6.5m 3 , pH4.5-4.8, steam sterilized.

[0024] Take 1000kg of castor, heat the raw material to 100-110°C, and evaporate the water therein;

[0025] Fermentation is carried out in the culture medium with Qingda No. 1 strain, the temperature is 40°C, the vacuum degree is 0.080MPa, the pH value is 4.5-5.0, the dosage of Qingda No. 1 strain is 15kg, and the fermentation time is 10 hours;

[0026] Use a centrifuge to separate and remove bacteria, yeast sludge and other impurities, and cool down to normal temperature to obtain biodiesel.

[0027] The resulting biodiesel has a density of 0.91 g / cm 3 , flash point 112°C, viscosity (cst) 6.9, calorific value 42MJ / kg, acid value 0.13mgKOH / g.

[0028] The to...

Embodiment 3

[0030] Preparation of fermenter culture medium: the size of the fermenter is 10m 3 , medium capacity is 6.5m 3 . The content of each component of the medium is: starch 195kg, yeast powder 130kg, corn steep liquor 325kg, CaCO 3 19.5kg, ZnSO 4 1.3kg, MgSO 4 1.6kg, add water to 6.5m 3 , pH4.5-4.8, steam sterilized.

[0031] Take 1000kg of rapeseed, heat the raw material to 100-110°C, and evaporate the water in it;

[0032] Fermentation is carried out in the culture medium with Qingda No. 1 strain, the temperature is 40°C, the vacuum degree is 0.080MPa, the pH value is 4.5-5.0, the dosage of Qingda No. 1 strain is 15kg, and the fermentation time is 10 hours;

[0033] Use a centrifuge to separate and remove bacteria, yeast sludge and other impurities, and cool down to normal temperature to obtain biodiesel.

[0034] The resulting biodiesel has a density of 0.90 g / cm 3 , flash point 112°C, viscosity (cst) 6.8, calorific value 44MJ / kg, acid value 0.13mgKOH / g.

[0035] The to...

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Abstract

The present invention discloses biodiesel oil preparing process which obtains biodiesel oil through biofermentation of the material. The biodiesel oil preparing process includes the steps of washing material, dewatering, culturing microbe seed, fermenting, and centrifugally separating to purify. The process has the advantages of biodiesel oil yield of 25 %, low cost, no environmental pollution and high efficiency, and the produced biodiesel oil has calorific value of 42-45 MJ / kg, near that of light diesel oil, and may be used as vehicle fuel.

Description

technical field [0001] The invention relates to a method for preparing a novel fuel, in particular to a method for preparing biodiesel. Background technique [0002] At present, energy shortage has become a worldwide problem. In China, with the development of the national economy, the contradiction between energy shortage and energy demand has become increasingly prominent. Among them, the shortage of crude oil and refined oil is the most urgent problem, which leads to the rise of oil prices. The continuous rise of crude oil prices in the international market has driven the rise of crude oil prices and refined oil prices in the domestic market. The price of crude oil and refined oil has less room to fall than expected. [0003] In order to solve the problem of lack of refined oil, people have proposed various solutions: such as using alternative clean energy such as solar energy. Another example is to use waste plastics to refine gasoline and diesel. However, most of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C12S3/02
CPCY02E50/13Y02E50/10
Inventor 张贵洲
Owner 张贵洲
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