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Production of biological diesel oil by fixed enzyme method

A technology for immobilizing enzymes and biodiesel, which is applied in the preparation of biological raw materials, biofuels, and liquid hydrocarbon mixtures. It can solve the problems of high cost of enzyme and enzyme immobilization, difficult recovery of esterification products, and low enzymatic conversion rate. , to achieve the effect of simple immobilization method, strong tolerance and strong reaction specificity

Active Publication Date: 2006-08-16
茂名市泓宇能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chemical synthesis of biodiesel has the following disadvantages: the process is complicated, alcohol must be excessive, and a corresponding alcohol recovery device must be installed in the follow-up; energy consumption is high, the color is dark, and unsaturated fatty acids in fat are easy to deteriorate at high temperatures, and the esterification products are difficult to recover , high cost; waste lye is discharged during the generation process
However, at present, due to the toxicity of low-carbon alcohols to enzymes, the enzymatic conversion rate is very low, and the enzyme is seriously inactivated, and the cost of enzyme and enzyme immobilization is high. The above problems make the production of biodiesel by enzymatic method still unindustrialized.

Method used

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  • Production of biological diesel oil by fixed enzyme method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 0.5g lipase to 30ml solution containing 0.3g sodium alginate (0.046mol / L) and 0.6g kaolin (20g / L), add 0.5ml gelatin (10g / L), 0.5ml lactose (10g / L ) and 0.3ml of 5% glutaraldehyde solution, stirred for 10 minutes, mixed evenly, shaken for 1h at 42°C, and then injected 25g / L of 100ml CaCl 2 The solution was solidified at 4°C for 4h. Stacked in the first, second and third reactors in a natural state;

[0035]Animal and vegetable oils and methanol are mixed in a molar ratio of 1:1, and biodiesel with a weight ratio of 5:1 is added as a solvent and 20% water of oil weight to form a substrate mixture, and the substrate mixture is placed Magnetic stirring and heating are carried out in the substrate mixing tank, so that methanol and animal and vegetable oils are evenly mixed; after the substrate is evenly mixed, it is pumped into the first-stage reactor by an oil pump and reacted under the catalysis of immobilized enzymes. The reaction solution coming out of the first-s...

Embodiment 2

[0038] Add 0.5g enzyme to 30ml solution containing 0.6g sodium alginate (0.046mol / L) and 0.6g kaolin (20g / L), add 0.5ml gelatin (10g / L), 0.5ml lactose (10g / L) and 0.3ml of 5% glutaraldehyde solution, stirred for 10 minutes, mixed well, shaken for 1h at 40°C, and then injected 20g / L of 100ml of CaCl 2 The solution was solidified at 4°C for 4 hours, filtered, and accumulated in the first, second and third reactors in a natural state.

[0039] Animal and vegetable oils and methanol are mixed in a molar ratio of 1:1, and biodiesel with a weight ratio of 5:1 is added as a solvent and 20% water of oil weight to form a substrate mixture, and the substrate mixture is placed Put it in the substrate mixing tank and carry out magnetic stirring and heating to make methanol and animal and vegetable oils mix evenly; after the substrate mixture is evenly mixed, it is pumped into the first-stage reactor by an oil pump and reacted under the catalysis of immobilized enzyme, and the rest of the ...

Embodiment 3

[0042] Add 0.5g enzyme to 30ml solution containing 0.9g sodium alginate (0.046mol / L) and 0.6g kaolin (20g / L), add 0.5ml gelatin (10g / L), 0.5ml lactose (5g / L) and 0.3ml of 5% glutaraldehyde solution, stirred for 10 minutes, mixed evenly, shaken for 1h at 42°C, and then injected 20g / L of 100ml of CaCl 2 The solution was solidified at 4°C for 4 hours, and accumulated in the first, second and third reactors in a natural state.

[0043] Animal and vegetable oils and methanol are mixed in a molar ratio of 1:1, and biodiesel with a weight ratio of 4:1 is added as a solvent and 20% water of oil weight to form a substrate mixture, and the substrate mixture is placed Put it in the substrate mixing tank and carry out magnetic stirring and heating to make methanol and animal and vegetable oils mix evenly; after the substrate mixture is evenly mixed, it is pumped into the first-stage reactor by an oil pump and reacted under the catalysis of immobilized enzyme, and the rest of the steps are...

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Abstract

A process for producing biological diesel oil by fixed enzyme method is carried out by taking sodium alginate, kaoline, glutaraldehyde, gelatin and lactose as co-fixer, fixing the lipase, piling the spherical fixed enzyme in filled bed columnar reactor naturally, alcoholyzing animal and plant oil fatty with biological diesel oil as solvent and producing biological diesel oil. It is cheap, has less consumption and by product and better quality. It can be used for continuous production.

Description

technical field [0001] The invention relates to a method for producing biodiesel, in particular to a method for catalyzing alcoholysis of animal and vegetable oils into biodiesel by immobilized lipase method in a non-aqueous phase system. Background technique [0002] Diesel is the main power fuel for many large vehicles such as trucks, diesel locomotives and generators. It has the advantages of high power and low price. The demand for diesel in my country is very large, and the growth rate of diesel demand has reached more than 6%, which is much higher than Gasoline growth rate (3.2%). [0003] The main problem of diesel application is low combustion efficiency and serious air pollution. In order to solve the problem of fuel oil exhaust pollution and the deteriorating environmental pressure, people began to study the use of other energy sources such as fuel alcohol fuel instead of gasoline. Currently, fuel alcohol has a considerable proportion in North America, such as the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C12S3/18
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 常杰吕鹏梅王学伟陈英明
Owner 茂名市泓宇能源科技有限公司
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