CN101955850A - Complex acid catalyst for producing biodiesel from acidified oil and production method of biodiesel - Google Patents
Complex acid catalyst for producing biodiesel from acidified oil and production method of biodiesel Download PDFInfo
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- CN101955850A CN101955850A CN2010102940140A CN201010294014A CN101955850A CN 101955850 A CN101955850 A CN 101955850A CN 2010102940140 A CN2010102940140 A CN 2010102940140A CN 201010294014 A CN201010294014 A CN 201010294014A CN 101955850 A CN101955850 A CN 101955850A
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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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Abstract
The invention discloses a complex acid catalyst for producing biodiesel from acidified oil and a production method of the biodiesel. The method comprises the complex acid catalyst which comprises concentrated sulfuric acid, concentrated phosphoric acid and linear alkylbenzene sulfonic acid, and the method comprises the following steps: mixing the concentrated sulfuric acid, the concentrated phosphoric acid and the linear alkylbenzene sulfonic acid according to the weight ratio of 2-4: 1: 1; and dissolving the complex acid catalyst in methanol, adding into a reaction kettle, producing refined fatty acid methyl ester, namely the biodiesel, through three steps. The method for producing the biodiesel from the acidified oil by utilizing the complex acid catalyst has simple process, strong operability, low production energy consumption, high conversion rate of the biodiesel and improved economic benefits.
Description
Technical field
The present invention relates to biofuel, relate in particular to and utilize waste grease production method of bio-diesel oil, particularly a kind of complex acid catalyst and production method of bio-diesel oil of acidifying oil production biofuel.
Background technology
Biofuel also claims fatty acid methyl ester, is a kind of New-type fuel that utilizes vegetables oil or animal oil processing to produce.Along with worldwide energy shortage and people pay attention to day by day to environment protection, this environmental type fuel of R and D biofuel, extremely urgent to substitute constantly exhausted petroleum-based energy.Sewer oil based on animal-plant oil can become the biofuel that uses for oil engine through reaction modifying, is the renewable energy source of cleaning, is typical " green energy resource ".Greatly develop biofuel to sustainable economic development, advance energy substitution, alleviate environmental stress, the control urban atmospheric pollution has the important strategic meaning.
Annual about 1,200 ten thousand tons of the vegetables oil that consumes of China; directly produce about 2,500,000 tons of leftover bits and pieces acidifying oil; development along with the big and medium-sized cities catering trade; annual about 5,000,000 tons of the sewer oil that produces; utilize these waste greases to make biofuel and help reducing the biofuel cost, ensure that for development China biofuel industry Oil Safety and protection environmental ecology have considerable effect as raw material.And these greasy acid numbers are generally all more than 100mgKOH/g, free lipid acid and fatty acid glycerine ester content almost respectively account for half in the acidifying oil, usually adopt technical process at present to other esterification of acidifying oil content and transesterify " two-step approach ", generate crude fatty acid methyl ester, obtain meeting the biofuel of fuel standard again through technological processs such as Separation ﹠ Purification." two-step approach " technology exists that production process is tediously long, production energy consumption is big, production cost is high and shortcoming such as the easy saponification of transesterification reaction.
Summary of the invention
For addressing the above problem, the invention provides a kind of complex acid catalyst of acidifying oil production biofuel and the production method of biofuel, this complex acid catalyst can make in the acidifying oil transesterification reaction of the esterification of free lipid acid and methyl alcohol and glycerin fatty acid ester and methyl alcohol carry out one simultaneously and go on foot and finish, generate fatty acid methyl ester, the i.e. technological process of " single stage method ", thus reach the purpose that makes full use of raw material and simplify production process.
The complex acid catalyst of this acidifying oil production biofuel of the present invention and the production method of biofuel comprise a kind of complex acid catalyst, complex acid catalyst is made up of the vitriol oil, strong phosphoric acid, linear alkyl benzene sulphonic acid, and according to the vitriol oil: strong phosphoric acid: linear alkyl benzene sulphonic acid=2～4: 1: 1 mass ratio mixes; Complex acid catalyst adds reactor in being dissolved in methyl alcohol, and the following production process of process:
1, complex acid catalyst and acidifying oil, methyl alcohol are added in the closed reactor together, composite catalyst consumption 1.0%～5.0% (oil is heavy), methanol usage 15%～50% (oil is heavy), temperature is reacted 2h～6h at 65 ℃～75 ℃;
2, excessive methanol is reclaimed in distillation, adds in 2.0%～10% the yellow soda ash dilute solution in step 1 resultant and complex acid catalyst, adds 0.5% industrial brine solution, wash 2～3 times to neutral, standing demix, upper strata are fatty acid methyl ester, and lower floor is a glycerine salt solution;
3, the lower floor's glycerine salt solution of draining enters the molecule rectifying tower behind the fatty acid methyl ester flash-evaporation dehydration of upper strata, obtains corps acid methyl esters, i.e. biofuel.
The complex acid catalyst of acidifying oil production biofuel of the present invention and the production method of biofuel provide this complex acid catalyst, utilize this Catalyst Production biofuel to have characteristics such as adaptability to raw material is wide, reaction conditions is gentle, the reaction times is short.Simultaneously, utilize that this catalyzer is simple, workable with acidifying oil production method of bio-diesel oil technology, production energy consumption is low, biofuel transformation efficiency height, improved economic benefit.
Embodiment
Embodiment one
1, in reactor, adds 100kg soybean acidified oil (acid number is 140mgKOH/g), add complex acid catalyst 3kg (being dissolved in advance in the 10kg methyl alcohol), complex acid catalyst is by the vitriol oil: strong phosphoric acid: the mass ratio of linear alkyl benzene sulphonic acid=4: 1: 1 mixes, add 20kg methyl alcohol, 72 ℃ of temperature of reaction, reaction 6h, the survey acid number is 1.1mgKOH/g;
2, excessive methanol is reclaimed in distillation, adds in 2.0%～10% the yellow soda ash dilute solution in step 1 resultant and complex acid catalyst, adds 0.5% industrial brine solution, wash 2～3 times to neutral, standing demix, upper strata are fatty acid methyl ester, and lower floor is a glycerine salt solution;
3, the lower floor's glycerine salt solution of draining enters the molecule rectifying tower behind the fatty acid methyl ester flash-evaporation dehydration of upper strata, obtains corps acid methyl esters, i.e. biofuel 90.6kg.
Embodiment two
1, in reactor, adds 100kg cottonseed acid carburetion (acid number is 120mgKOH/g), add complex acid catalyst 4kg (being dissolved in advance in the 10kg methyl alcohol), complex acid catalyst is by the vitriol oil: strong phosphoric acid: the mass ratio of linear alkyl benzene sulphonic acid=4: 1: 1 mixes, add 20kg methyl alcohol, 75 ℃ of temperature of reaction, reaction 6h, the survey acid number is 1.2mgKOH/g;
2, excessive methanol is reclaimed in distillation, adds in 2.0%～10% the yellow soda ash dilute solution in step 1 resultant and complex acid catalyst, adds 0.5% industrial brine solution, wash 2～3 times to neutral, standing demix, upper strata are fatty acid methyl ester, and lower floor is a glycerine salt solution;
3, the lower floor's glycerine salt solution of draining enters the molecule rectifying tower behind the fatty acid methyl ester flash-evaporation dehydration of upper strata, obtains corps acid methyl esters, i.e. biofuel 89.3kg.
Embodiment three
1, in reactor, adds 100kg soap stock acidifying oil (acid number is 160mgKOH/g), add complex acid catalyst 3kg (being dissolved in advance in the 10kg methyl alcohol), complex acid catalyst is by the vitriol oil: strong phosphoric acid: the mass ratio of linear alkyl benzene sulphonic acid=3: 1: 1 mixes, add 20kg methyl alcohol, 71 ℃ of temperature of reaction, reaction 5h, the survey acid number is 0.9mgKOH/g;
2, excessive methanol is reclaimed in distillation, adds in 2.0%～10% the yellow soda ash dilute solution in step 1 resultant and complex acid catalyst, adds 0.5% industrial brine solution, wash 2～3 times to neutral, standing demix, upper strata are fatty acid methyl ester, and lower floor is a glycerine salt solution;
3, the lower floor's glycerine salt solution of draining enters the molecule rectifying tower behind the fatty acid methyl ester flash-evaporation dehydration of upper strata, obtains corps acid methyl esters, i.e. biofuel 91.2kg.
Embodiment four
1, in reactor, adds 100kg oil foot acidifying oil (acid number is 130mgKOH/g), add complex acid catalyst 5kg (being dissolved in advance in the 10kg methyl alcohol), complex acid catalyst is by the vitriol oil: strong phosphoric acid: the mass ratio of linear alkyl benzene sulphonic acid=4: 1: 1 mixes, add 20kg methyl alcohol, 71 ℃ of temperature of reaction, reaction 6h, the survey acid number is 1.1mgKOH/g;
2, excessive methanol is reclaimed in distillation, adds in 2.0%～10% the yellow soda ash dilute solution in step 1 resultant and complex acid catalyst, adds 0.5% industrial brine solution, wash 2～3 times to neutral, standing demix, upper strata are fatty acid methyl ester, and lower floor is a glycerine salt solution;
3, the lower floor's glycerine salt solution of draining enters the molecule rectifying tower behind the fatty acid methyl ester flash-evaporation dehydration of upper strata, obtains corps acid methyl esters, biofuel 84.9kg.
Claims (1)
1. the complex acid catalyst of acidifying oil production biofuel and the production method of biofuel, comprise a kind of complex acid catalyst, it is characterized in that: described complex acid catalyst is made up of the vitriol oil, strong phosphoric acid, linear alkyl benzene sulphonic acid, and according to the vitriol oil: strong phosphoric acid: linear alkyl benzene sulphonic acid=2～4: 1: 1 mass ratio mixes; Described complex acid catalyst adds reactor in being dissolved in methyl alcohol, and the following production process of process:
A, complex acid catalyst and acidifying oil, methyl alcohol are added in the closed reactor together, composite catalyst consumption 1.0%～5.0% (oil is heavy), methanol usage 15%～50% (oil is heavy), temperature be at 65 ℃～75 ℃, reaction 2h～6h;
Excessive methanol is reclaimed in B, distillation, adds in 2.0%～10% the yellow soda ash dilute solution in the steps A resultant and complex acid catalyst, adds 0.5% industrial brine solution, wash 2～3 times to neutral, standing demix, upper strata are fatty acid methyl ester, and lower floor is a glycerine salt solution;
C, the lower floor's glycerine salt solution of draining enter the molecule rectifying tower behind the fatty acid methyl ester flash-evaporation dehydration of upper strata, obtain corps acid methyl esters, i.e. biofuel.
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| CN2010102940140A CN101955850A (en) | 2010-09-28 | 2010-09-28 | Complex acid catalyst for producing biodiesel from acidified oil and production method of biodiesel |
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| CN2010102940140A CN101955850A (en) | 2010-09-28 | 2010-09-28 | Complex acid catalyst for producing biodiesel from acidified oil and production method of biodiesel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963832A (en) * | 2016-11-25 | 2019-07-02 | 阿肯马法国公司 | For processing the acid composition of fatty acid |
Citations (5)
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| WO2002038529A1 (en) * | 2000-11-08 | 2002-05-16 | Energea Umwelttechnologie Gmbh | Method for the production of fatty acid esters of lower alcohols |
| CN1810932A (en) * | 2006-02-22 | 2006-08-02 | 福建师范大学 | Medium temperature and low pressure process to prepare biological diesel oil |
| CN101113361A (en) * | 2006-07-27 | 2008-01-30 | 上海中油企业集团有限公司 | Method for producing biodiesel capable of being applied for industrial production |
| CN101113362A (en) * | 2006-07-27 | 2008-01-30 | 上海中油企业集团有限公司 | Method for producing biodiesel with low cost |
| CN101747951A (en) * | 2008-11-27 | 2010-06-23 | 鲁洪 | Biodiesel and processing technique thereof |
-
2010
- 2010-09-28 CN CN2010102940140A patent/CN101955850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002038529A1 (en) * | 2000-11-08 | 2002-05-16 | Energea Umwelttechnologie Gmbh | Method for the production of fatty acid esters of lower alcohols |
| CN1810932A (en) * | 2006-02-22 | 2006-08-02 | 福建师范大学 | Medium temperature and low pressure process to prepare biological diesel oil |
| CN101113361A (en) * | 2006-07-27 | 2008-01-30 | 上海中油企业集团有限公司 | Method for producing biodiesel capable of being applied for industrial production |
| CN101113362A (en) * | 2006-07-27 | 2008-01-30 | 上海中油企业集团有限公司 | Method for producing biodiesel with low cost |
| CN101747951A (en) * | 2008-11-27 | 2010-06-23 | 鲁洪 | Biodiesel and processing technique thereof |
Non-Patent Citations (1)
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| 梁斌: "生物柴油的生产技术", 《化工进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963832A (en) * | 2016-11-25 | 2019-07-02 | 阿肯马法国公司 | For processing the acid composition of fatty acid |
| US11534743B2 (en) | 2016-11-25 | 2022-12-27 | Arkema France | Acid composition for processing fatty acids |
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Application publication date: 20110126 |