CN101113353A - Novel method for producing biodiesel - Google Patents
Novel method for producing biodiesel Download PDFInfo
- Publication number
- CN101113353A CN101113353A CNA200610029459XA CN200610029459A CN101113353A CN 101113353 A CN101113353 A CN 101113353A CN A200610029459X A CNA200610029459X A CN A200610029459XA CN 200610029459 A CN200610029459 A CN 200610029459A CN 101113353 A CN101113353 A CN 101113353A
- Authority
- CN
- China
- Prior art keywords
- alcohol
- novelty
- producing biodiesel
- diesel
- out under
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the technical field of a production method of the bio-diesel. The production method of the novel bio-diesel of the invention takes waste oils as raw material grease to be reacted with supercritical lower alcohol and comprises the steps of: (1) purification and dehydration; (2) esterification or transesterification; (3) fliteration; (4) methanol steaming; (5) phase separation. The invention adopts supercritical process to produce the bio-diesel with animals and plants oils, waste vegetable oils, waste oils, soybean seeds, etc. Compared with petroleum diesel, the bio-diesel has small pollution of tail gas and the greenhouse effect can be effectively reduced.
Description
Technical field
The present invention relates to a kind of production method technical field of biofuel.
Background technology
Present biofuel mostly is to use acid or alkali as a catalyst to make vegetables oil and methyl alcohol or ethanol carry out transesterification reaction.This method exists that complex process, pure consumption are big, product is difficult for recovery, shortcoming such as big for environment pollution because of using catalyzer, and be mixed with free lipid acid or water in the reactant, reaction is had very big impairment effect, and product must be washed, and can produce alkali waste in the washing process.
The production of biofuel has very big economic benefit.And the social effect that use produced of biofuel can't be estimated especially, the exploitation of bioenergy is a strategic problem that solves the petroleum resources shortage problem, also being to solve the pollution problem that the very difficult exhaust gas emission that solves of oil fuel brings, is a major action of benefiting the nation and the people.
Material has three kinds of special states, i.e. gaseous state, liquid state and solid-state.When temperature surpasses critical temperature, material have by exert pressure also not can condensation liquid state, this state of material is exactly a supercritical state.Be in postcritical fluid and have different character with liquid or gas.Under supercritical state, fluidic density and density of liquid are approaching, and the viscosity of fluidic viscosity and gas is close, and fluidic thermal conductivity and spread coefficient are between the thermal conductivity and spread coefficient of gas and liquid.Being in postcritical fluid, to be used as non-liquid solvent (or participating in reaction directly) extensive in Application in Chemistry, do not appear in the newspapers at home but directly it is applied on the biodiesel manufacture technology.
Summary of the invention
The objective of the invention is to provide a kind of method for producing biodiesel of novelty for the shortcoming that overcomes above-mentioned technology.This by can utilizing regenerative raw materials to produce the green energy resource novel process, environmental pollution, petroleum-based energy safety are significant.This technological reaction productive rate height, non-pollution discharge, raw material is renewable, aftertreatment is simple, generates green energy resource-biofuel by the Green Chemistry reaction.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method for producing biodiesel of novelty, this method does raw oil material with sewer oil and supercritical lower alcohol is reacted, and may further comprise the steps:
(1) purifies, dewaters;
(2) esterification or transesterify;
(3) filter;
(4) steam methyl alcohol;
(5) phase-splitting.
The processing condition of above-mentioned step:
Waste edible oil, sewer oil dehydration are to carry out under 50～100 ℃ vacuum.
Esterification or transesterify are carried out under 220～400 ℃, 8～25MPa, and used catalyzer is superpower solid acid, superpower solid alkali and metal oxide, and the reaction times is 4～30 minutes; The consumption of low-carbon alcohol is 6～60 times of vegetable and animals oils amount of substance when esterification or transesterify.
Steam methyl alcohol and carry out under 60～70 ℃, 30～60 minutes time length, methyl alcohol can be recycled.
Phase-splitting is carried out under 20～60 ℃, 20～50 minutes time length.
Low-carbon alcohol can be selected methyl alcohol, ethanol, n-propyl alcohol, propyl carbinol, Pentyl alcohol and n-hexyl alcohol for use.
Raw material of the present invention is easy to get, cost is low, is applicable to various waste edible oils, sewer oil, oil crop seeds by using etc.The invention solves and adopt supercritical process by production biofuel such as vegetable and animals oils, waste edible oil, sewer oil, oil crop seeds by using, this biofuel is little than the tail gas pollution of petrifaction diesel, can effectively reduce " Greenhouse effect ".The biofuel supercritical preparation process has realistic meaning to environment protection, Oil Safety, increasing peasant income, ecological protection etc.
Embodiment
Be used for further describing the present invention with the test example by the following examples.
Embodiment 1
With useless rape seed oil of 60g and 140g methanol mixed, add in the high-temperature high-pressure reaction kettle, add the 2g catalyzer, when being heated to 320 ℃, this moment, tensimeter showed that pressure is 24MPa, kept 20 minutes in this temperature then; High-temperature high-pressure reaction kettle is condensed water-cooled to room temperature; Methyl alcohol in the reaction is steamed only at 60～70 ℃, and methyl alcohol can be recycled; Carry out phase-splitting and handle under 20 ℃ condition, continue 20 minutes altogether, promptly generate 57.2g fatty acid methyl ester-biofuel, yield is 95.3%.Reaction in this example is the reaction that is under the super critical condition.
Embodiment 2
With edible rape seed oil of 50g and 100g methanol mixed, add in the high-temperature high-pressure reaction kettle, tensimeter shows that pressure is 9.5MPa when being heated to 250 ℃, keeps 20 minutes in this temperature then; High-temperature high-pressure reaction kettle is condensed water-cooled to room temperature; Methyl alcohol in the reaction is steamed only at 60～70 ℃, and methyl alcohol can be recycled; Carry out phase-splitting and handle under 60 ℃ condition, continue 40 minutes altogether, promptly generate 46g fatty acid methyl ester-biofuel, yield is 92%.Reaction in this example is in super critical condition.
Claims (6)
1. the method for producing biodiesel of a novelty, this method does raw oil material with sewer oil and supercritical lower alcohol is reacted, and may further comprise the steps:
(1) purifies, dewaters; (2) esterification or transesterify; (3) filter; (4) steam methyl alcohol; (5) phase-splitting.
2. the method for producing biodiesel of novelty as claimed in claim 1, it is characterized in that: raw oil material is to carry out under 50～100 ℃ vacuum.
3. the method for producing biodiesel of novelty as claimed in claim 1, it is characterized in that: esterification or transesterify are carried out under 220～400 ℃, 8～25MPa, used catalyzer is superpower solid acid, superpower solid alkali and metal oxide, and the reaction times is 4～30 minutes; The consumption of low-carbon alcohol is 6～60 times of vegetable and animals oils amount of substance when esterification or transesterify.
4. the method for producing biodiesel of novelty as claimed in claim 1 is characterized in that: steam methyl alcohol and carry out under 60～70 ℃, 30～60 minutes time length, methanol loop use.
5. the method for producing biodiesel of novelty as claimed in claim 1, it is characterized in that: phase-splitting is carried out under 20～60 ℃, 20～50 minutes time length.
6. the method for producing biodiesel of novelty as claimed in claim 1, it is characterized in that: low-carbon alcohol is selected methyl alcohol, ethanol, n-propyl alcohol, propyl carbinol, Pentyl alcohol or n-hexyl alcohol for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610029459XA CN101113353A (en) | 2006-07-27 | 2006-07-27 | Novel method for producing biodiesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610029459XA CN101113353A (en) | 2006-07-27 | 2006-07-27 | Novel method for producing biodiesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101113353A true CN101113353A (en) | 2008-01-30 |
Family
ID=39021885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610029459XA Pending CN101113353A (en) | 2006-07-27 | 2006-07-27 | Novel method for producing biodiesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101113353A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818102A (en) * | 2010-04-30 | 2010-09-01 | 大连理工大学 | Method for preparing biodiesel by catalytic intensification of supercritical methanol |
| CN102553397A (en) * | 2011-06-30 | 2012-07-11 | 中国海洋石油总公司 | Tail gas processing method in biodiesel processing process |
| CN103146488A (en) * | 2013-03-07 | 2013-06-12 | 姬大菊 | Method for producing -5 DEG C biodiesel by using drainage oil or waste cooking oil |
| CN104140885A (en) * | 2013-05-12 | 2014-11-12 | 南京工业大学 | Method for preparing fatty acid ester with oxidation resistance by using oil-containing plant seeds as raw materials |
| CN105132192A (en) * | 2014-05-29 | 2015-12-09 | 中国石油化工股份有限公司 | Biodiesel preparation method |
-
2006
- 2006-07-27 CN CNA200610029459XA patent/CN101113353A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818102A (en) * | 2010-04-30 | 2010-09-01 | 大连理工大学 | Method for preparing biodiesel by catalytic intensification of supercritical methanol |
| CN102553397A (en) * | 2011-06-30 | 2012-07-11 | 中国海洋石油总公司 | Tail gas processing method in biodiesel processing process |
| CN102553397B (en) * | 2011-06-30 | 2014-09-24 | 中国海洋石油总公司 | Tail gas processing method in biodiesel processing process |
| CN103146488A (en) * | 2013-03-07 | 2013-06-12 | 姬大菊 | Method for producing -5 DEG C biodiesel by using drainage oil or waste cooking oil |
| CN103146488B (en) * | 2013-03-07 | 2015-02-18 | 姬大菊 | Method for producing -5 DEG C biodiesel by using drainage oil or waste cooking oil |
| CN104140885A (en) * | 2013-05-12 | 2014-11-12 | 南京工业大学 | Method for preparing fatty acid ester with oxidation resistance by using oil-containing plant seeds as raw materials |
| CN104140885B (en) * | 2013-05-12 | 2018-07-24 | 南京工业大学 | Method for preparing fatty acid ester with oxidation resistance by using oil-containing plant seeds as raw materials |
| CN105132192A (en) * | 2014-05-29 | 2015-12-09 | 中国石油化工股份有限公司 | Biodiesel preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101372539B (en) | Method for producing environment-friendly type plasticiser using waste oil and oil foot | |
| CN101704710B (en) | Method for preparing ethylene glycol, propylene glycol and glycerine by carrying out catalytic conversion on corn cobs | |
| CN1594504A (en) | Process for supercritical preparation of biologic diesel oil | |
| CN103361166B (en) | Method for preparing biofuel by directly liquefying microalgae | |
| CN102311883A (en) | Method for preparing high-purity biodiesel | |
| CN100410349C (en) | Method for producing biological diesel oil through homogeneous successive reaction | |
| CN108671960A (en) | A kind of high hydrothermal stability MOFs catalyst, the method for preparing and preparing chemicals for cellulose conversion | |
| CN101113353A (en) | Novel method for producing biodiesel | |
| CN102876465A (en) | Method for preparing biodiesel by using kitchen waste oil | |
| CN101974372A (en) | Method for preparing biodiesel by catalyzing ester exchange with amino acid ionic liquid | |
| CN103666773A (en) | Method for producing biodiesel in micro-structure reactor | |
| CN102824928B (en) | Solid acid catalyst for preparing biodiesel and preparation method as well as application of solid acid catalyst | |
| CN100417710C (en) | Catalytic cracking method for producing biodiesel using animal-plant oil | |
| CN101691519A (en) | Method for preparing biodiesel by taking pupal oil as production raw material | |
| CN103305252A (en) | Method for preparing liquid fuel through coliquefaction of coal and alage | |
| CN101157868B (en) | Method for producing low freezing point biodiesel by employing waste animal and vegetable oil coupling and special device | |
| CN103436368B (en) | Method for synchronously preparing biodiesel and glycerol carbonate by using alkali-earth oxide as catalyst | |
| CN105056954A (en) | Hydrogenation catalyst and preparing method and application thereof | |
| CN107746723A (en) | A kind of method that sludge liquefaction prepares bio-fuel | |
| CN101148599B (en) | Method for preparing biological diesel oil from waste animals and plants grease with high acid value | |
| CN100402631C (en) | Method for synthesizing biodiesel | |
| CN102492558A (en) | Method of preparing biodiesel in ionic liquid | |
| CN101289628A (en) | Process for producing biodiesel from mixed fatty acid | |
| KR20100029458A (en) | Method for producing biodiesel using fish oil | |
| CN101249454A (en) | Solid base catalyst and applications for preparing biological diesel oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080130 |