Method for producing biological diesel oil by using high-acidity waste animal and vegetable oil

A technology for waste animal and vegetable oil and biodiesel, which is applied in the preparation of biological raw materials, liquid hydrocarbon mixtures, and petroleum industry, etc., can solve the problems of using environmental pollution, etc., and achieve the effects of less exhaust pollution, reduction of greenhouse effect, and easy implementation.

Inactive Publication Date: 2003-04-23
宋庭礼 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem that the prior art can only use edible animal and vegetable oil to produce biodiesel, and at the same time, the waste animal and vegetable oil with high acid value has not been fully and effectively utilized to cause pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0019] Raw materials: 30kg of waste cottonseed oil with high acid value

[0020] First, put the waste cottonseed oil with high acid value into the dehydrator, and dehydrate it under vacuum condition at 70°C; after dehydration, enter the reaction kettle, add 3.6Kg of methanol and 1.2Kg of sulfuric acid at 70°C Esterification and transesterification, the reaction time lasts for 3.0 hours; the reacted product enters the phase separator, adds 1.2Kg of activated clay, and conducts phase separation treatment at 60°C for a total of 0.5 hours; finally, at 105°C The decolorization treatment was carried out for 0.5 hours in total, and 28.5kg of fatty acid methyl ester——biodiesel was produced, with a yield of 95%.

specific Embodiment approach 2

[0021] Raw material: 20kg of spoiled high acid value waste rapeseed oil

[0022] First, put the waste cottonseed oil with high acid value into the dehydrator, and dehydrate it under vacuum at 60°C; after dehydration, enter the reaction kettle, add 2Kg of methanol and 0.4Kg of sulfuric acid to carry out esterification at 72°C Chemicalization and transesterification reaction, the reaction time lasts for 3.5 hours; the reacted product enters the phase separator, adds 1.0Kg of activated clay, and carries out phase separation treatment at 65°C for a total of 0.5 hours; finally, at 110°C The decolorization treatment lasted for 0.4 hours in total, and 19.0 kg of fatty acid methyl ester—biodiesel was produced, with a yield of 95%.

specific Embodiment approach 3

[0023] Raw material: high acid value waste oil with more impurities----swill oil 40kg

[0024] First, put the swill oil into the dehydrator, and dehydrate it under vacuum condition at 70°C; after dehydration, enter the reaction kettle, add 6Kg of methanol and 2.4Kg of sulfuric acid to carry out esterification and transesterification at 75°C, The reaction time lasts for 4.0 hours; the reacted product enters the phase separator, and 2.4Kg of activated clay is added, and the phase separation treatment is carried out at 75°C for a total of 0.5 hours; finally, the decolorization treatment is carried out at 115°C for a total of After 0.5 hour, 38kg of fatty acid methyl ester—biodiesel is produced, with a yield of 95%.

[0025] The biodiesel of the present invention can be used as fuel for automobiles by adding modified polyvinyl alcohol additives in a certain proportion or directly detaching it from petrochemical diesel.

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Abstract

The present invention relates to a method for producing biological diesel oil-fatty acid methyl ester by using waste animal and vegetable oil with high acid value. It is characterized by that it adopts acidic catalysis method, under the action of acidic catalyst is makes the waste animal and vegetable oil react with low carbon alcohol, and adopts the following four steps: (1) dewatering; (2) esterification and ester exchange; (3) phase separation; and (4) decolouring so as to produce the invented biological diesel fatty acid methyl ester.

Description

technical field [0001] The invention relates to a method for producing fatty acid methyl ester—biodiesel from waste animal and vegetable oil with high acid value, which belongs to the field of oil chemistry. Background technique [0002] Recently, the technical hotspot of fuel oil is on the one hand, focusing on alternatives, that is, non-petrochemical sources of energy; on the other hand, it is the so-called "renewable raw materials", especially animal and vegetable oils. The main components of animal and vegetable oils are fatty acid glycerides, which are biodegradable and environmentally compatible energy sources. However, its physical and chemical properties (large molecular weight, low temperature fluidity, high temperature thermal stability) limit its use in automobiles. Through chemical methods, it is modified to reduce the cold filter point and high temperature thermal stability, and it becomes so-called biodiesel, so that it can be use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 宋庭礼朱向平
Owner 宋庭礼
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