Method for making biologic diesel oil

A technology for biodiesel and a manufacturing method, which is applied in the preparation of biological raw materials, biofuels, liquid hydrocarbon mixtures, etc., can solve the problems of difficult large-scale production, complex production process, large environmental pollution, etc., and achieves less emissions and simple production process. , the effect of short dehydration time

Inactive Publication Date: 2007-07-25
BEIJING QINGYANLIHUA GASOLINEEUM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production of biodiesel usually adopts chemical method, physical method and bio-enzyme production technology. The production process is complicated, the equipment investment is large, and it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Biodiesel of the present invention is prepared according to the following steps:

[0030] 1) Add 390 kg of water, 28 kg of sulfuric acid, 6.5 kg of oleic acid and 3.5 kg of sodium xylene sulfonate to 700 kg of animal and vegetable oil by weight, heat to 150-200°C at room temperature, reflux through the condenser, and stir React for 2 to 4 hours, then stand still for 1 hour, discharge impurities and acid water, and make crude fatty acid;

[0031] 2) The crude fatty acid is vacuumized at 60-80°C to 0.04-0.09Mp for dehydration, and stirred to obtain anhydrous fatty acid;

[0032] 3) In the anhydrous fatty acid, add 1.4 kg of zirconium sulfate and 229 kg of methanol per 1000 kg of fatty acid, heat at 70-75°C, reflux for 2-4 hours, remove impurities after precipitation, and recover excess methanol by reflux. into crude biodiesel;

[0033] 4) The above-mentioned crude biodiesel is firstly washed with water, that is, adding more than 6% of water according to the weight of th...

Embodiment 2

[0035] Biodiesel of the present invention is prepared according to the following steps:

[0036] 1) Add 210 kg of water, 52 kg of sulfuric acid, 3.5 kg of oleic acid and 6.5 kg of sodium xylene sulfonate to 1300 kg of waste oil by weight, heat to 150-200°C under normal pressure, condense and reflux through the condenser, and stir React for 2 to 4 hours, then stand still for 1 hour, discharge impurities and acid water, and make crude fatty acid;

[0037] 2) heating the crude fatty acid to 105°C for dehydration, and stirring to obtain anhydrous fatty acid;

[0038] 3) In the anhydrous fatty acid, add 2.6 kg of zirconium sulfate and 123 kg of methanol per 1000 kg of anhydrous fatty acid, heat at 70-75°C, reflux for 2-4 hours, discharge impurities after precipitation, and use reflux to recover excess Methanol to make crude biodiesel;

[0039] 4) The above-mentioned crude biodiesel is first washed with water, that is, adding more than 6% saturated saline according to the weight o...

Embodiment 3

[0041] Biodiesel of the present invention is prepared according to the following steps:

[0042] 1) Add 300 kg of water, 40 kg of sulfuric acid, 5 kg of oleic acid and 5 kg of sodium xylene sulfonate to 1000 kg of swill oil by weight, heat to 150-200 ° C at room temperature, condense and reflux through the condenser, and stir the reaction 2 to 4 hours, then stand still for 1 hour, discharge impurities and acid water, and make crude fatty acid;

[0043] 2) The crude fatty acid is vacuumized at 60-80°C to 0.04-0.09Mp for dehydration, and stirred to obtain anhydrous fatty acid;

[0044] 3) In the anhydrous fatty acid, add 2 kg of zirconium sulfate and 176 kg of methanol per 1000 kg of anhydrous fatty acid, heat at 70-75 ° C, reflux for 2-4 hours, discharge impurities after precipitation, and use reflux to recover excess Methanol to make crude biodiesel;

[0045] 4) The above-mentioned crude biodiesel is firstly washed with water, that is, adding more than 6% of water according ...

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PUM

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Abstract

This invention discloses a method for producing biodiesel oil. The method comprises: (1) adding water, sulfuric acid, oleic acid and sodium dimethylbenzenesulfonate into animal oil, plant oil and/or waste oil to prepare crude fatty acids; (2) dehydrating to obtain anhydrous fatty acids; (3) adding methanol and sulfate catalyst, and esterifying to obtain crude biodiesel oil; (4) washing with water, decoloring, dehydrating, and filtering to obtain refined biodiesel oil. The method has such advantages as simple process, low equipment investment, saved energy consumption, high resource utility, low cost, and little pollution.

Description

technical field [0001] The invention relates to a diesel processing technology, in particular to a biodiesel manufacturing method. Background technique [0002] At present, the production of biodiesel usually adopts chemical method, physical method and bio-enzyme production technology. The production process is complicated, the equipment investment is large, and it is difficult to form large-scale production. In addition, concentrated acid or concentrated alkali is usually used as a catalyst in the esterification process. , relatively large pollution to the environment. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a biodiesel manufacturing method with simple production process, low equipment investment, low cost, easy scale production and little environmental pollution. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a biodiesel manufacturing me...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 鲁希诺
Owner BEIJING QINGYANLIHUA GASOLINEEUM CHEM
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