CN101081990B - Preparation method of biological diesel fuel - Google Patents

Preparation method of biological diesel fuel Download PDF

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Publication number
CN101081990B
CN101081990B CN2006100815741A CN200610081574A CN101081990B CN 101081990 B CN101081990 B CN 101081990B CN 2006100815741 A CN2006100815741 A CN 2006100815741A CN 200610081574 A CN200610081574 A CN 200610081574A CN 101081990 B CN101081990 B CN 101081990B
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biofuel
preparation
raw material
substratum
oil
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CN101081990A (en
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张贵洲
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel

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  • Preparation Of Compounds By Using Micro-Organisms (AREA)

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

The preparation method of biofuel
Technical field
The present invention relates to a kind of preparation method of New-type fuel, specifically, is a kind of preparation method of biofuel.
Background technology
At present, the energy shortage difficult problem that become international.In China, along with development and national economy, the contradiction of energy shortage and energy demand becomes increasingly conspicuous.Wherein, the shortage with crude oil and processed oil is the most critical problem again, and causes rise of the oil price.Continuing of world market crude oil price is soaring, has driven the rise of the crude oil price and the processed oil price of domestic market.The falling space of the price of crude oil and processed oil is also less than expection.
In order to solve the problem of processed oil scarcity, people have proposed multiple solution: have the clean energy of substitutability as using sun power etc.And for example, can use waste or used plastics etc., refining gasoline and diesel oil.But there is following shortcoming in this class chemical method biodiesel synthesis technology of preparing: complex process, energy consumption height mostly; Need special solvent recovery unit; Discharging of waste liquid is arranged, contaminate environment in the production process.At present, also having occurred with useless vegetable and animals oils is the feedstock production method of bio-diesel oil, and as Chinese patent application 200410061280.3, denomination of invention is " a kind of lipase production method of bio-diesel oil of utilizing ".But prior biological diesel oil technology of preparing needs to adopt complicated production and synthesis technique usually, and operational path is long, facility investment is big, catalytic efficiency enzyme is lower, and the biofuel calorific value of gained is lower, cost is higher.
Summary of the invention
Purpose of the present invention is to provide a kind of preparation method of biofuel.
In order to realize above-mentioned goal of the invention, technical scheme of the present invention adopts following steps:
A. raw material is carried out pre-treatment, heating raw evaporates moisture wherein to 100-110 ℃;
B. ferment with clear big No. 1 bacterial classification in substratum, temperature is 40-45 ℃, and vacuum tightness is 0.080MPa, and pH value is 4.5-5.0, and the bacterial classification consumption is the 1.5wt% of raw material, and fermentation time is 10-15 hour;
C. separate with whizzer and remove thalline, yeast slurry and other impurity, be cooled to normal temperature and promptly get biofuel.
Described raw material is the high sugared plant of sweet potato, cassava, jerusalem artichoke etc.; Or the draft oil crops, as rape, castor-oil plant etc.
Described substratum is made up of following raw materials according: 2.0～3.5% starch, 1.0～2.0% yeast powders, 4.0～8.0% corn steep liquors, 0.1～0.5% CaCO 3, 0.01～0.02% Zn 2+, 0.01～0.03% Mg 2+, surplus is a water.
The yield of biofuel is about 25%.That is, raw material per ton can obtain about 250 kilograms of biofuel finished products.
Described clear big No. 1 bacterial classification is that Beijing Development Co., Ltd of clear big Creative Science and Technology Co. Ltd develops specially, and clear big No. 1 is its commercially available trade mark.
The preparation method of biofuel of the present invention has that technical process is simple, raw material is easy to get, a yield height, free from environmental pollution, advantage that efficient is high.The biofuel calorific value of gained is 42-45MJ/kg, and is suitable with solar oil, can use as vehicle fuel.
Embodiment
Below providing specific embodiment further specifies.The purpose of these embodiment is illustrative, and should not be construed as limitation of the present invention.
Embodiment 1
The preparation of fermentation tank culture medium: the fermentor tank size is 10m 3, the substratum loading amount is 6.5m 3Each component content of substratum is: starch 195kg, yeast powder 130kg, corn steep liquor 325kg, CaCO 319.5kg, ZnSO 41.3kg, MgSO 41.6kg, add water to 6.5m 3, pH4.5-4.8, steam sterilizing.
Get sweet potato 1000kg, heating raw evaporates moisture wherein to 100-110 ℃;
Ferment with clear big No. 1 bacterial classification in substratum, temperature is 45 ℃, and vacuum tightness is 0.080MPa, and pH value is 4.5-5.0, and clear big No. 1 bacterial classification consumption is 15kg, and fermentation time is 15 hours;
Remove thalline, yeast slurry and other impurity with the whizzer separation, be cooled to normal temperature and promptly get biofuel.
The density of the biofuel of gained is 0.89g/cm 3, 112 ℃ of flash-points, viscosity (cst) 6.7, calorific value 45MJ/kg, acid number 0.14mgKOH/g.
The gross weight of the biofuel that obtains is 251 kilograms, and yield is 25.1%.
Embodiment 2
The preparation of fermentation tank culture medium: the fermentor tank size is 10m 3, the substratum loading amount is 6.5m 3Each component content of substratum is: starch 195kg, yeast powder 130kg, corn steep liquor 325kg, CaCO 319.5kg, ZnSO 41.3kg, MgSO 41.6kg, add water to 6.5m 3, pH4.5-4.8, steam sterilizing.
Get castor-oil plant 1000kg, heating raw evaporates moisture wherein to 100-110 ℃;
Ferment with clear big No. 1 bacterial classification in substratum, temperature is 40 ℃, and vacuum tightness is 0.080MPa, and pH value is 4.5-5.0, and clear big No. 1 bacterial classification consumption is 15kg, and fermentation time is 10 hours;
Remove thalline, yeast slurry and other impurity with the whizzer separation, be cooled to normal temperature and promptly get biofuel.
The density of the biofuel of gained is 0.91g/cm 3, 112 ℃ of flash-points, viscosity (cst) 6.9, calorific value 42MJ/kg, acid number 0.13mgKOH/g.
The gross weight of the biofuel that obtains is 253 kilograms, and yield is 25.3%.
Embodiment 3
The preparation of fermentation tank culture medium: the fermentor tank size is 10m 3, the substratum loading amount is 6.5m 3Each component content of substratum is: starch 195kg, yeast powder 130kg, corn steep liquor 325kg, CaCO 319.5kg, ZnSO 41.3kg, MgSO 41.6kg, add water to 6.5m 3, pH4.5-4.8, steam sterilizing.
Get rape 1000kg, heating raw evaporates moisture wherein to 100-110 ℃;
Ferment with clear big No. 1 bacterial classification in substratum, temperature is 40 ℃, and vacuum tightness is 0.080MPa, and pH value is 4.5-5.0, and clear big No. 1 bacterial classification consumption is 15kg, and fermentation time is 10 hours;
Remove thalline, yeast slurry and other impurity with the whizzer separation, be cooled to normal temperature and promptly get biofuel.
The density of the biofuel of gained is 0.90g/cm 3, 112 ℃ of flash-points, viscosity (cst) 6.8, calorific value 44MJ/kg, acid number 0.13mgKOH/g.
The gross weight of the biofuel that obtains is 249 kilograms, and yield is 24.9%.
More than the preparation method of biofuel provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (1)

1. the preparation method of a biofuel is characterized in that, adopts following steps:
A. raw material is carried out pre-treatment, heating raw evaporates moisture wherein to 100-110 ℃, and described raw material is sweet potato, cassava, jerusalem artichoke, rape or castor-oil plant;
B. in substratum, ferment with clear big No. 1 bacterial classification, temperature is 40-45 ℃, vacuum tightness is 0.080MPa, the pH value is 4.5-5.0, and the bacterial classification consumption is the 1.5wt% of raw material, and fermentation time is 10-15 hour, described substratum is made up of following raw materials according: 2.0～3.5% starch, 1.0～2.0% yeast powder, 4.0～8.0% corn steep liquors, 0.1～0.5% CaCO 3, 0.01～0.02% Zn 2+, 0.01～0.03% Mg 2+, surplus is a water;
C. separate with whizzer and remove thalline, yeast slurry and other impurity, be cooled to normal temperature and promptly get biofuel.
CN2006100815741A 2006-05-29 2006-05-29 Preparation method of biological diesel fuel Expired - Fee Related CN101081990B (en)

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Application Number Priority Date Filing Date Title
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CN101081990B true CN101081990B (en) 2011-01-12

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102311813A (en) * 2010-07-02 2012-01-11 东莞市康源生物科技有限公司 Method for extracting liquid fuel by waste sewage
CN116656403A (en) * 2023-05-25 2023-08-29 盐城工学院 Preparation method for producing biodiesel by using cottonseed oil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1583959A (en) * 2004-06-01 2005-02-23 曹建国 Process for preparing biological diesel by repeseed fermenting method
CN1696297A (en) * 2005-06-03 2005-11-16 清华大学 Method for producing 1,3-propylene glycol through using glycerin of by-product from biologic diesel oil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1583959A (en) * 2004-06-01 2005-02-23 曹建国 Process for preparing biological diesel by repeseed fermenting method
CN1696297A (en) * 2005-06-03 2005-11-16 清华大学 Method for producing 1,3-propylene glycol through using glycerin of by-product from biologic diesel oil

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