CN1281713C - Method for producing biologic diesel oil from rosin - Google Patents
Method for producing biologic diesel oil from rosin Download PDFInfo
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- CN1281713C CN1281713C CNB2005100391701A CN200510039170A CN1281713C CN 1281713 C CN1281713 C CN 1281713C CN B2005100391701 A CNB2005100391701 A CN B2005100391701A CN 200510039170 A CN200510039170 A CN 200510039170A CN 1281713 C CN1281713 C CN 1281713C
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- rosin
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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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- 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
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Abstract
The present invention discloses a method for preparing biologic diesel oil from rosin. Decarboxylic reaction is carried out to non-polymeric rosin; the decarboxylated liquid rosin is mixed with organic nitric ether according to the weight ratio of 1000: (1 to 5); the rosin and the organic nitric ether are stirred for one to four hours under the temperature of 0 DEG C to 80 DEG C; after the mixture is cooled, biologic diesel oil of yellow rosinyl is obtained. In the present invention, the rosin is first liquefied by the method of changing the partial structure of the rosin so as to meet the requirement of the low viscosity of the biologic diesel oil; materials are compounded and prepared by the high decomposing performance of the organic nitric ether; therefore, the liquefied cetane number of the rosin reaches the standard of the biologic diesel oil; consequently, the biologic diesel oil of rosinyl, which has low viscosity and favorable performance is obtained. Compared with biologic diesel oil prepared from natural oil, the present invention has the advantages of simple manufacturing process and energy source saving; besides, the liquefied rosin is synthesized from non-polymeric rosin, which needs only two hours; the present invention hardly generates acid water; acid water treatment does not need carrying out so the pollution is reduced.
Description
Technical Field
The invention relates to a preparation method of biodiesel, in particular to a method for preparing biodiesel from rosin.
Background
Biodiesel generally refers to long-chain fatty acid methyl esters obtained by synthesis (transesterification) from renewable oil feedstocks. All patents on biodiesel, such as JP-A-7-197047 and JP-A-9235573, US-A-5713965, CN1247221A, are reports on how to prepare fatty acid methyl esters from fats and oils; the research report of preparing the rosin type biodiesel by taking rosin as a raw material does not exist at home and abroad. The existing price of natural oil is generally higher than that of diesel oil by 10-20%, so that the method disclosed by all the previous patent documents is difficult to solve the problem of high preparation cost of the biodiesel no matter how high the yield is, and is still difficult to industrialize in China, so that the methods are only limited on theoretical research and are difficult to further popularize and apply.
Rosin is one of the most important forest renewable resources in China, and the annual output is more than 50 ten thousand tons; the price of the rosin is similar to thatof crude oil, and the rosin is the most competitive natural resource for preparing the biodiesel; however, biodiesel must maintain a lower viscosity, higher cetane number, at low temperatures or otherwise affect its use.
Disclosure of Invention
The invention provides a method for preparing biodiesel from rosin, which has simple production process, no acid water generation and high product purity and can reach the quality standard of biodiesel.
The invention adopts the following technical scheme:
a method for preparing biodiesel from rosin is to carry out decarboxylation reaction on non-polymerized rosin, and is characterized in that a decarboxylation product liquid rosin and organic nitrate are mixed according to the weight ratio of 1000: 1-5, stirred for 1-4 hours at the temperature of 0-80 ℃, and cooled to obtain yellow rosin-based biodiesel, wherein the basic index parameters of the rosin-based biodiesel are as follows: a cetane number of greater than 45, a viscosity (at 25 ℃) of 70-80 mpas and a density of 0.90-0.96 g/ml.
Compared with the prior art for synthesizing biodiesel from grease, the method has the following advantages:
the invention adopts the following route to prepare the biodiesel:
(1) cracking reaction
(2) Material composite
Liquefied decarboxylated non-polymerized rosin + organic nitrate → biodiesel
The non-polymeric rosin used in the present invention includes gum rosin, hydrogenated rosin, disproportionated rosin, and preferably rosin.
The rosin belongs to polycyclic non-normal alkane, is a solid brittle substance, and has the structural characteristics that the viscosity and the cetane number of a product are difficult to reach the standard of the biodiesel, so that the application of the rosin directly serving as the biodiesel is limited; according to the invention, the rosin is liquefied by using a method of changing the partial structure of the rosin, the requirement of low viscosity of the biodiesel is met, and the advantage of strong decomposability of the organic nitrate is adopted for material compounding, so that the cetane number of the liquefied rosin reaches the standard of the biodiesel; thereby obtaining the rosin-based biodiesel with low viscosity and good performance. Compared with the preparation of biodiesel from natural oil, the method has simple process, the time for synthesizing the liquefied rosin from the non-polymerized rosin is only 2 hours, and the energy is saved; the invention hardly generates acid water, does not need acid water treatment and reduces pollution. Meanwhile, the biodiesel prepared from the rosin has no byproducts such as glycerin and the like, the glycerin content is 0, and the purity of the liquefied decarboxylated rosin is high.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Examples
A method for preparing biodiesel from rosin comprises the steps of carrying out decarboxylation reaction on non-polymerized rosin, and mixing a decarboxylation product liquid rosin and organic nitrate according to the weight ratio of 1000: 1-5, for example: mixing the materials according to the weight ratio of 1000: 1, 1000: 5 or 1000: 3, stirring for 1-4 hours at the temperature of 0-80 ℃, and cooling to obtain yellow rosin-based biodiesel, wherein the non-polymerization type rosin decarboxylation reaction isto add a PH 4-5 inorganic acid catalyst accounting for 1-20% of the weight of the non-polymerization type rosin into the non-polymerization type rosin under the protection of nitrogen, heat the mixture to 100-300 ℃, react for 1-6 hours, cool the reaction product to 40-90 ℃, remove the catalyst to obtain yellow decarboxylation liquid rosin, the inorganic acid catalyst is activated clay with the PH value of 4-5, and the non-polymerization type rosin is gum rosin, hydrogenated rosin or disproportionated rosin non-polymerization type rosin. The organic nitrate is fatty alcohol nitrate with 4-10 carbons. Can be one of butyl nitrate, isoamyl nitrate, isooctyl nitrate, n-octyl nitrate, n-hexyl nitrate or cyclohexyl nitrate.
Example 1
A method for preparing biodiesel from rosin comprises the steps of carrying out decarboxylation reaction on non-polymerized rosin, stirring a decarboxylation product and organic nitrate at 0-80 ℃ for 1-4 hours, and cooling to obtain yellow rosin-based biodiesel. The basic index parameters of the rosin-based biodiesel are as follows: a cetane number of greater than 45, a viscosity (at 25 ℃) of 70-80 mpas and a density of 0.90-0.96 g/ml.
The rosin is non-polymerized rosin, including gum rosin, hydrogenated rosin, disproportionated rosin; the organic nitrate refers to 4-10 carbon fatty alcohol nitrate, such as: isooctyl nitrate, butyl nitrate, isoamyl nitrate, n-hexyl nitrate, cyclohexyl nitrate, n-octyl nitrate. The amount of the nitrate ester is different according to the characteristics, the weight of the decarboxylated rosin is 0.1-0.3%, and the longer the carbon chain of the nitrate ester is, the less the weight is added, such as: isooctyl nitrate was added at 0.1% by weight of the decarboxylated rosin, while butyl nitrate was added at 0.2%. The decarboxylation reaction of the non-polymerized rosin can be realized by adopting the prior art, in this embodiment, the non-polymerizedrosin is added with an inorganic acid catalyst which is 1-20% of the weight of the non-polymerized rosin under the protection of nitrogen, for example: 1%, 20%, 8%, 14% or 17%, preferably 10%; the inorganic acid catalyst is medium acid and acid salt, such as bisulfate, activated clay with pH 4-5, preferably activated clay with pH 4-5; heating to 100-300 ℃, and reacting for 1-6 hours, preferably 270 ℃, for 2 hours; collecting the substances with the boiling point below 250 ℃, cooling the reaction product to below 90 ℃ after the reaction is finished, and removing the catalyst to obtain the yellow liquid decarboxylated rosin.
Example 2
Adding 1000 g of hydrogenated rosin and 100 g of activated clay with the pH value of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 180 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 620 g of yellow low-viscosity liquid rosin.
Heating 620 g of liquid rosin and 2 g of isooctyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 622 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 48.
Example 3
Adding 1000 g of hydrogenated rosin and 100 g of activated clay with the pH value of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 180 g of low-boiling-point oil, cooling a reactionproduct to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 620 g of yellow low-viscosity liquid rosin.
Heating 620 g of liquid rosin and 2.5 g of butyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 622 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 47.
Example 4
Adding 1000 g of hydrogenated rosin and 100 g of activated clay with the pH value of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 180 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 620 g of yellow low-viscosity liquid rosin.
Heating 620 g of liquid rosin and 2 g of n-octyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 622 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 49.
Example 5
Adding 1000 g of hydrogenated rosin and 100 g of activated clay with the pH value of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 180 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 620 g of yellow low-viscosity liquid rosin.
Heating 620 g of liquid rosin and 2 g of cyclohexyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 622 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 55.
Example 6
Adding 1000 g of hydrogenated rosin and 100 g of activated clay with the pH value of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 180 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 620 g of yellow low-viscosity liquid rosin.
Heating 620 g of liquid rosin and 2 g of n-hexyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 622 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 50.
Example 7
Adding 1000 g of hydrogenated rosin and 100 g of activated clay with the pH value of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 180 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 620 g of yellow low-viscosity liquid rosin.
Heating 620 g of liquid rosin and 3 g of isoamyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 622 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 46.
Example 8
Adding 1000 g of disproportionated rosin and 100 g of activated clay with PH 4-5 into a three-neck flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and removing the activated clay by vacuum filtration to obtain 610 g of yellow low-viscosity liquid rosin. Heating 610 g of liquid rosin and 3 g of n-butyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 613 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 47.
Example 9
Adding 1000 g of disproportionated rosin and 100 g of activated clay with PH 4-5 into a three-neck flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and removing the activated clay by vacuum filtration to obtain 610 g of yellow low-viscosity liquid rosin.
610 g of liquid rosin and 3 g of isoamyl nitrate are heated to 50 ℃ and stirred for about 1 hour to obtain 613 g of yellow low-viscosity rosin-based biodiesel, and the cetane number of the biodiesel is 48.
Example 10
Adding 1000 g of disproportionated rosin and 100 g of activated clay with PH 4-5 into a three-neck flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and removing the activated clay byvacuum filtration to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of n-octyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 49.
Example 11
Adding 1000 g of disproportionated rosin and 100 g of activated clay with PH 4-5 into a three-neck flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and removing the activated clay by vacuum filtration to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of isooctyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 49.
Example 12
Adding 1000 g of disproportionated rosin and 100 g of activated clay with PH 4-5 into a three-neck flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and removing the activated clay by vacuum filtration to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of cyclohexyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 52.
Example 13
Adding 1000 g of disproportionated rosin and 100 g of activated clay with PH 4-5 into a three-neck flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and removing the activated clay by vacuum filtration to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of n-hexyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 51.
Example 14
Adding 1000 g of gum rosin and 100 g of activated clay with the pH of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 3 g of n-butyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 613 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 46.
Example 15
Adding 1000 g of gum rosin and 100 g of activated clay with the pH of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 610 g of yellow low-viscosity liquid rosin.
610 g of liquid rosin and 3 g of isoamyl nitrate are heated to 50 ℃ and stirred for about 1 hour to obtain 613 g of yellow low-viscosity rosin-based biodiesel, and the cetane number of the biodiesel is 48.
Example 16
Adding 1000 g of gum rosin and 100 g of activated clay with the pH of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of n-octyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 48.
Example 17
Adding 1000 g of gum rosin and 100 g of activated clay with the pH of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of isooctyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 47.
Example 18
Adding 1000 g of gum rosin and 100 g of activated clay with the pH of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of cyclohexyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 51.
Example 19
Adding 1000 g of gum rosin and 100 g of activated clay with the pH of 4-5 into a three-necked flask with a stirrer, a thermometer, a water separator and a reflux condenser, introducing nitrogen to exhaust air, heating to 270 ℃, reacting for 2 hours, separating low-boiling-point oil from a small amount of water by using the water separator to obtain 190 g of low-boiling-point oil, cooling a reaction product to 80 ℃, and performing vacuum filtration to remove the activated clay to obtain 610 g of yellow low-viscosity liquid rosin.
Heating 610 g of liquid rosin and 2 g of n-hexyl nitrate to 50 ℃, and stirring for about 1 hour to obtain 612 g of yellow low-viscosity rosin-based biodiesel, wherein the cetane number of the biodiesel is 50.
Claims (6)
1. A method for preparing biodiesel from rosin is to carry out decarboxylation reaction on non-polymerized rosin to obtain a non-polymerized rosin decarboxylation product, and is characterized in that the non-polymerized rosin decarboxylation product and organic nitrate are mixed according to the weight ratio of 1000: 1-5, stirred for 1-4 hours at the temperature of 0-80 ℃, and cooled to obtain yellow rosin-based biodiesel.
2. The method for preparing biodiesel from rosin according to claim 1, wherein the decarboxylation reaction of the non-polymerized rosin is carried out by adding 1-20 wt% of the non-polymerized rosin in an inorganic acidic catalyst with pH 4-5 into the non-polymerized rosin under the protection of nitrogen, heating to 100-300 ℃ for 1-6 hours, cooling the reaction product to 40-90 ℃, and removing the catalyst to obtain a yellow decarboxylated product of the non-polymerized rosin.
3. The method for preparing biodiesel from rosin according to claim 2, wherein the inorganic acid catalyst is activated clay having a pH of 4 to 5.
4. The method of claim 1 wherein the non-polymeric rosin is a gum rosin, a hydrogenated rosin, or a disproportionated rosin.
5. The method for preparing biodiesel from rosin according to claim 1, wherein the organic nitrate is a C4-10 fatty alcohol nitrate.
6. The method for preparing biodiesel from rosin according to claim 1, wherein the fatty alcohol nitrate with 4-10 carbons is one of butyl nitrate, isoamyl nitrate, isooctyl nitrate, n-octyl nitrate, n-hexyl nitrate or cyclohexyl nitrate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101735847B (en) * | 2009-12-29 | 2011-12-21 | 浙江省林业科学研究院 | Method for producing rosin fuel oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101629087B (en) * | 2009-07-27 | 2012-10-24 | 中国林业科学研究院林产化学工业研究所 | Method for preparing biomass fuel by utilizing rosin production residues and deep-processing residues thereof |
| CN101875864B (en) * | 2009-10-10 | 2013-03-27 | 粟定纲 | Light diesel preparation method |
| CN102358844B (en) * | 2011-09-16 | 2014-05-21 | 广西大学 | Method for preparing rosin methyl ester and compound biodiesel raw material through pine oleoresin |
| EP3838998A1 (en) * | 2019-12-19 | 2021-06-23 | Kraton Polymers Research B.V. | Biorenewable hydrocarbon compositions and their uses |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101735847B (en) * | 2009-12-29 | 2011-12-21 | 浙江省林业科学研究院 | Method for producing rosin fuel oil |
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