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Novel catalyst for synthesizing biodiesel and application method of novel catalyst

A technology for synthesizing organisms and catalysts, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, heterogeneous catalyst chemical elements, etc., and can solve environmental pollution, equipment corrosion, sulfur content increase. High problems, to achieve the effect of improving product purity, less corrosiveness, and high production safety factor

Inactive Publication Date: 2020-03-17
WEIFANG JIN XIN DA BIO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it adopts methanesulfonic acid and p-toluenesulfonic acid as catalysts in the esterification reaction of oil and glycerol. Although this kind of sulfur-containing catalyst catalyzes the esterification reaction efficiency is higher, and the esterification reaction temperature is also lower, but It will increase the sulfur content in biodiesel products, and release sulfur-containing gas after burning biodiesel, which is not only corrosive to equipment, but also causes serious environmental pollution

Method used

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  • Novel catalyst for synthesizing biodiesel and application method of novel catalyst
  • Novel catalyst for synthesizing biodiesel and application method of novel catalyst
  • Novel catalyst for synthesizing biodiesel and application method of novel catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 A kind of synthetic biodiesel novel catalyst and its application

[0031] 1. Feeding

[0032] Add kitchen waste oil raw materials into the reaction kettle, heat up to 60°C; start stirring, add glycerin raw materials, and stir and mix at a speed of 240r / min for 15 minutes;

[0033] The consumption of described glycerol is 10% of kitchen waste oil quality;

[0034] 2. Esterification reaction

[0035] Add an esterification catalyst into the kettle, gradually raise the temperature to 250°C at a heating rate of 20°C / min, and start the esterification reaction;

[0036] The esterification catalyst is composed of zinc oxide with a purity of 99% and a mesh number of 400;

[0037] Described esterification catalyst, its consumption accounts for 1% of kitchen waste oil quality;

[0038] 3. Central control detection:

[0039] During the esterification reaction, samples are taken every 2 hours, and the acid value of the product is measured by acid-base titration met...

Embodiment 2

[0065] Embodiment 2 A novel catalyst for synthesizing biodiesel and its application

[0066] 1. Feeding

[0067] Add the kitchen waste oil raw material into the reaction kettle, raise the temperature to 60-65°C; start stirring, add the glycerin raw material at a speed of 240r / min, and stir and mix for 15 minutes;

[0068] The add-on of described glycerin is 13% of kitchen waste oil quality;

[0069] 2. Esterification reaction

[0070] Add an esterification catalyst into the kettle, gradually raise the temperature to 250°C at a heating rate of 20°C / min, and start the esterification reaction;

[0071] The esterification catalyst is composed of modified composite zinc oxide solid particles with a relative density of 5.92 and a mesh number of 200 mesh;

[0072] The raw material composition of the esterification catalyst, in parts by weight, includes: 10 parts of zinc oxide, 5 parts of zinc permanganate, 0.5 parts of cerium oxide, and 4 parts of tetramethoxysilane;

[0073] The...

Embodiment 3

[0102] Embodiment 3 A kind of synthetic biodiesel novel catalyst and its application

[0103] 1. Feeding

[0104] Add the kitchen waste oil raw material into the reaction kettle, raise the temperature to 65°C; start stirring, add the glycerin raw material at a speed of 240r / min, and stir and mix for 15 minutes;

[0105] The add-on of described glycerin is 13% of kitchen waste oil quality;

[0106] 2. Esterification reaction

[0107] Add an esterification catalyst into the kettle, gradually raise the temperature to 260°C at a heating rate of 20°C / min, and start the esterification reaction;

[0108] The esterification catalyst is composed of modified composite zinc oxide solid particles with a relative density of 6.10 and a mesh number of 400 mesh;

[0109] The raw material composition of the esterification catalyst, in parts by weight, includes: 6 parts of zinc oxide, 5 parts of zinc permanganate, 2 parts of cerium oxide, and 2 parts of tetramethoxysilane;

[0110] The prep...

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Abstract

The invention provides a novel catalyst for synthesizing biodiesel and an application method of the novel catalyst. The novel catalyst comprises an esterification catalyst and an ester exchange catalyst, wherein the esterification catalyst is zinc oxide, the ester exchange catalyst is a supported catalyst, and the ester exchange catalyst comprises the raw materials in parts by weight: 10-15 partsof aluminum oxide, 10-12 parts of zinc nitrate, 5-8 parts of dioctyl tin oxide, 20-25 parts of bentonite, 1-2 parts of polyvinyl alcohol and 5-8 parts of cellulose. The catalyst provided by the invention is used for preparing biodiesel; under a condition that a sulfur-containing catalyst is not used, the reaction yield of the esterification reaction can reach 91-96%, the ester exchange reaction yield can reach 96-98%, the purity of the finally prepared biodiesel product reaches 99.0-99.6%, the density (20 DEG C) is 865-890 / kg / m<3>, the acid value is 0.30-0.45 mg KOH / g, and the product qualityis excellent.

Description

technical field [0001] The invention relates to the technical field of synthetic biodiesel, in particular to a novel catalyst for synthesizing biodiesel and its application. Background technique [0002] Biodiesel is a clean alternative fuel produced from renewable biological resources such as plants and animal fats. It is a non-polluting renewable energy source with reduced exhaust emissions during use. Therefore, biodiesel has important promotion and use value. [0003] The traditional industrial production of biodiesel uses kitchen waste oil and methanol as raw materials, and is obtained by the esterification reaction of free fatty acids and methanol. However, the traditional esterification reaction uses concentrated sulfuric acid as a catalyst. , but this reaction needs to be carried out under high temperature conditions. Concentrated sulfuric acid is highly corrosive to equipment and pipelines at high temperatures, and the equipment loss is large; in addition, kitchen...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J23/14C11C3/02C11C3/10C11C3/06C10L1/02
CPCB01J23/002B01J23/14B01J23/34B01J2523/00C10L1/026C11C3/02C11C3/06C11C3/10B01J2523/27B01J2523/31B01J2523/43Y02E50/10
Inventor 雷世勇张家鹏张军涛
Owner WEIFANG JIN XIN DA BIO CHEM
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