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Solid acid catalyst for biodiesel and method for preparing biodiesel

A solid acid catalyst and biodiesel technology, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of low storage stability of biodiesel, insufficient catalytic reaction, biodiesel product collection, etc. The efficiency is not high, to achieve the effect of reducing acid catalyst content, accelerating dehydration, and high acid site density

Active Publication Date: 2021-06-25
湖北碧美新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the catalytic reaction in the transesterification reaction of raw materials such as vegetable oil, waste catering oil and animal fat is not active enough so that the yield of biodiesel product is still not high, and the storage stability of biodiesel is still not high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

[0031] A solid acid catalyst for biodiesel, comprising 50 parts of alkali lignin, 50 parts of phosphoric acid, 30 parts of concentrated sulfuric acid, 10 parts of 2-oxo-1,5-glutaric acid, and isostearyl alcohol in parts by weight 5 parts of ferulic acid ester, BaFeO 3 3 parts, the mass fraction of the phosphoric acid is 80%, the BaFeO 3 It is a 4d cubic perovskite structure.

[0032] The present invention also provides a kind of method that solid acid catalyst prepares biodiesel, comprises the following steps:

[0033] Step S1: Pretreatment of waste catering oil: filter the waste catering oil, remove solid impurities, wash twice with hot water to remove water-soluble impurities, and then remove water by drying to prepare pretreated waste oil for later use;

[0034] Step S2: Prepare solid acid catalyst: (1) impregnate alkali lignin into phosphoric acid, ...

Embodiment 2

[0038] Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

[0039] A solid acid catalyst for biodiesel, comprising 50 parts of alkali lignin, 60 parts of phosphoric acid, 40 parts of concentrated sulfuric acid, 15 parts of 2-oxo-1,5-glutaric acid, and isostearyl alcohol in parts by weight 10 parts of ferulic acid ester, BaFeO 3 5 parts, the mass fraction of the phosphoric acid is 85%, the BaFeO 3 It is a 4d cubic perovskite structure.

[0040] The present invention also provides a kind of method that solid acid catalyst prepares biodiesel, comprises the following steps:

[0041] Step S1: Pretreatment of waste catering oil: filter the waste catering oil, remove solid impurities, wash with hot water 3 times to remove water-soluble impurities, and then remove water by drying to prepare pretreated waste oil for later use;

[0042]Step S2: Prepare solid acid catalyst: (1) impregnate alkali lignin into phosphoric acid...

Embodiment 3

[0046] Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

[0047] A solid acid catalyst for biodiesel, comprising 50 parts of alkali lignin, 55 parts of phosphoric acid, 35 parts of concentrated sulfuric acid, 13 parts of 2-oxo-1,5-glutaric acid, and isostearyl alcohol in parts by weight 8 parts of ferulic acid ester, BaFeO 3 4 parts, the mass fraction of the phosphoric acid is 83%, the BaFeO 3 It is a 4d cubic perovskite structure.

[0048] The present invention also provides a kind of method that solid acid catalyst prepares biodiesel, comprises the following steps:

[0049] Step S1: Pretreatment of waste catering oil: filter the waste catering oil, remove solid impurities, wash with hot water 3 times to remove water-soluble impurities, and then remove water by drying to prepare pretreated waste oil for later use;

[0050] Step S2: Prepare solid acid catalyst: (1) impregnate alkali lignin into phosphoric acid...

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PUM

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Abstract

The invention provides a solid acid catalyst for biodiesel. The solid acid catalyst comprises the following components in parts by weight: 50 parts of alkali lignin, 50-60 parts of phosphoric acid, 30-40 parts of concentrated sulfuric acid and 10-15 parts of 2-oxo-1, 5-glutaric acid. The invention aims to provide the solid acid catalyst which is green, clean, high in catalytic activity and high in biodiesel yield and a method for preparing biodiesel.

Description

technical field [0001] The invention relates to the technical field of biodiesel preparation, in particular to a solid acid catalyst for biodiesel and a method for preparing biodiesel. Background technique [0002] Biodiesel is produced through the transesterification reaction of fatty acid triglycerides in vegetable oil (such as soybean oil, peanut oil, rapeseed oil, etc.), waste cooking oil and animal fat with low-chain alcohols (mainly methanol) The new type of fuel mainly composed of fatty acid monoesters is mainly composed of long-chain fatty acid methyl esters containing 14 to 24 even-numbered carbon atoms, of which saturated fatty acid methyl esters are mainly C 14∶0 ~C 24∶0 , unsaturated fatty acid methyl esters are mainly C 16∶1 ~C 22∶1 、C 18∶2 ~C 20∶2 and C 18∶3 . [0003] Biodiesel is a clean renewable resource, known as "green diesel", its performance is very similar to ordinary diesel, and it is a high-quality substitute for fossil fuels. Biodiesel conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28B01J23/78B01J37/02B01J37/08C10L1/12C10L1/188C10L1/19C10L1/24C10L10/00
CPCB01J31/28B01J23/78B01J23/002B01J37/0203B01J37/08C10L1/10C10L10/00C10L1/2462C10L1/1283C10L1/1275C10L1/1881C10L1/19C10L1/1233B01J35/33
Inventor 石健君
Owner 湖北碧美新能源科技有限公司
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