Method for producing light biological diesel oil with seed oil of camphor

A technology of biodiesel and camphor tree seed oil, which is applied to the preparation of biological raw materials, biofuels, liquid hydrocarbon mixtures, etc., can solve the problem of light biodiesel not appearing, and achieve the effect of low energy consumption and easy separation and collection

Inactive Publication Date: 2009-04-08
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bibliographical reports on the preparation of light biodiesel from camphor tree seed oil have not appeared so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Stir and heat camphor seed crude oil to 65°C, add phosphoric acid (concentration: 85%) of 0.2% oil weight and 65°C water with 15% oil weight while stirring, continue stirring for 10 minutes, centrifuge, and vacuum dehydrate;

[0028] The above pretreated raw materials, under the action of an esterification catalyst with an esterification catalyst / free fatty acid molar ratio of 0.5, add methanol at a ratio of methanol / free fatty acid molar ratio of 5, react at a temperature of 65°C for 105min, and then centrifuge Separation; the esterification catalyst and methanol phase return to the esterification reactor, and the esterification product and methanol phase enter the transesterification reactor.

[0029] The product in the above-mentioned esterification reaction, under the action of a transesterification catalyst whose molar ratio of transesterification catalyst / total fatty acid is 0.15, is added methanol in a ratio of 7 to a molar ratio of methanol / total fatty acid, and ...

Embodiment 2

[0031] Stir and heat camphor seed crude oil to 68°C, add phosphoric acid (85% concentration) with 1% oil weight and 68°C water with 12% oil weight while stirring, continue stirring for 7 minutes, centrifuge, and vacuum dehydrate;

[0032] The above pretreated raw materials, under the action of an esterification catalyst with an esterification catalyst / free fatty acid molar ratio of 0.7, add methanol at a ratio of methanol / free fatty acid molar ratio of 7, react at a temperature of 70°C for 90 minutes, and then centrifuge Separation; the esterification catalyst and methanol phase return to the esterification reactor, and the esterification product and methanol phase enter the transesterification reactor.

[0033] The product in the above-mentioned esterification reaction, under the action of a transesterification catalyst whose molar ratio of transesterification catalyst / total fatty acid is 0.2, is added methanol in a ratio of 8 to a molar ratio of methanol / total fatty acid, and...

Embodiment 3

[0035] Stir and heat camphor tree seed crude oil to 60°C, then add 0.1% phosphoric acid (concentration: 85%) of oil weight and 60°C water with 10% oil weight while stirring, continue stirring for 5 minutes, centrifuge, and vacuum dehydrate.

[0036]The above pretreated raw materials, under the action of an esterification catalyst with an esterification catalyst / free fatty acid molar ratio of 0.6, add methanol at a ratio of methanol / free fatty acid molar ratio of 5, react at 64°C for 120min, and then centrifuge separate. The esterification catalyst and methanol phase return to the esterification reactor, and the esterification product and methanol phase enter the transesterification reactor.

[0037] The product in the above-mentioned esterification reaction, under the action of a transesterification catalyst whose molar ratio of transesterification catalyst / total fatty acid is 0.18, is added methanol at a ratio of 6 to a molar ratio of methanol / total fatty acid, and reacted fo...

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PUM

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Abstract

The invention relates to a method for preparing light biodiesel from camphor tree seed oil, which includes the pretreatments of impurity removing and degumming. The invention is characterized in that: the pretreated product is added with carbinol under the effect of the molar ratio of 0.5 to 0.7 between the esterification catalyst sulfate propyl sulfonic paramethyl imidazole acidated ion liquid and dissociated fatty acid according to a molar ratio of 5-7 between the carbinol and the dissociated fatty acid for reaction for 90 to 120min at the temperature of 64 to 70 DEG C and then separated through centrifuging; the esterification catalyst and the carbinol return an esterification reaction vessel; the product of esterification and the carbinol enter an ester exchange reaction vessel; under the effect of the molar ratio of 0.15 to 0.2 between the ester exchange catalyst grain-shaped loading type KOH / MgO / Al2O3 and total fatty acid, the carbinol is added according to a molar ratio of 6 to 8 between the carbinol and the total fatty acid for reaction for 180 to 210min at the temperature of 64 to 70 DEG C, then filtered and separated through centrifuging; a glycerin phase recycles the carbinol through film distilling and obtains the glycerin; a formic ester phase recycles the carbinol through film distilling and is decolored for obtaining the light biodiesel which not only can be mixed with light diesel oil or vehicle diesel oil for being used as a diesel oil engine fuel, but also can be directly used as the diesel oil engine fuel.

Description

technical field [0001] The invention belongs to the field of bio-oil synthesis, in particular to the preparation of light biodiesel. Background technique [0002] With the decrease of global oil resource reserves and the gradual deterioration of the climate, the research, development, production and use of biodiesel have been favored by more and more countries. Many European, American, and Asian countries are paying attention to the development of biodiesel, and have successively researched and developed a variety of long-carbon chain fatty acid oils (above C16) produced by converting soybean oil, rapeseed oil, palm oil, tung oil, and waste oil. Diesel engine fuel blending uses biodiesel-heavy biodiesel technology, and the annual output of heavy biodiesel (above C16) has grown to hundreds of thousands of tons to millions of tons. At present, most of the raw materials used to produce heavy biodiesel are edible long-chain fatty acid oils (above C16), forming a situation of co...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 曾哲灵万冬满
Owner NANCHANG UNIV
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