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Catalysts for solid base for producing biodiesel

A solid base catalyst, catalyst technology, applied in physical/chemical process catalysts, catalyst carriers, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of complex post-processing, difficult industrialization, and high cost of enzymes, Achieve the effect of easy industrial application, simple preparation method and good catalytic performance

Inactive Publication Date: 2007-09-26
SHANGHAI SUNRISE POLYMER MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of catalyst for preparing biodiesel and its application to catalyze the preparation of biodiesel for the deficiencies in the prior art, which overcomes the separation difficulties of the homogeneous acid-base catalyst used in the existing transesterification reaction, Disadvantages such as complex post-processing, low product yield, low conversion rate of biological enzyme catalyst, high enzyme cost, short enzyme life, and difficult industrialization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Weigh K 2 CO 3 2.898g and La(NO 3 ) 3 ·6H 2 O 0.6495g in a beaker, add 6.000g deionized water, stir and dissolve to obtain an aqueous solution, pour the aqueous solution into a beaker with sepiolite (200 mesh) having the same volume as the aqueous solution, stir, and soak for 24h, After drying at 120°C, put it into a muffle furnace and roast at 800°C for 4 hours, take it out and cool it in a desiccator, press into tablets, grind and sieve to make solid particles of 100 mesh to 200 mesh, that is, Lanthanum-K 2 CO 3 / Sepiolite solid base catalyst.

[0017] Add 100g of soybean oil into a 250ml three-neck flask, preheat to 70°C in a water bath, add 45.2g of methanol and 3.0g of a supported solid base catalyst, stir and reflux for 4 hours, the stirring speed is greater than 600 rpm, and the reaction is over. Pour it into a separatory funnel to separate the catalyst at the bottom layer, leave it for 24 hours and then separate into layers. The product in the upper laye...

Embodiment 2

[0019] Weigh KNO 3 4.242g and Ce(NO 3 ) 3 ·6H 2 O 0.0651g in a beaker, add 6.000g deionized water, stir and dissolve to obtain an aqueous solution, pour the aqueous solution into a beaker equipped with attapulgite (300 mesh) with the same volume as the aqueous solution, stir, and immerse for 48h. After drying at 120°C, put it into a muffle furnace and roast at 700°C for 5 hours, take it out and cool it in a desiccator, press into tablets, grind and sieve to make solid particles below 200 mesh, that is, cerium-KNO 3 / Attapulgite solid base catalyst.

[0020] Add 100g of jatropha seed oil to a 250ml three-neck flask, preheat to 70°C in a water bath, add 33.9g of methanol and 2.0g of supported solid base catalyst, stir and reflux for 6h, the stirring speed is greater than 600 rpm, and the reaction is over . Pour it into a separatory funnel to separate the catalyst at the bottom layer, leave it for 24 hours and then separate into layers. The product in the upper layer is di...

Embodiment 3

[0022] Weigh Na 2 CO 3 2.226g and Zn(NO 3 ) 2 ·6H 2 O 0.1782g in a beaker, add 6.000g of deionized water, stir and dissolve to obtain an aqueous solution, pour the aqueous solution into a beaker filled with zeolite (200 mesh) with the same volume as the aqueous solution, stir, soak for 24h, at 120°C After drying, put it into a muffle furnace and roast at 800°C for 4 hours, take it out and cool it in a desiccator, press it into tablets, grind and sieve it, and make solid particles below 200 meshes to obtain zinc-Na 2 CO 3 / Zeolite solid base catalyst.

[0023] Add 100g of jatropha seed oil to a 250ml three-neck flask, preheat to 70°C in a water bath, add 56.5g of methanol and 3.0g of a supported solid base catalyst, stir and reflux for 4 hours, the stirring speed is greater than 600 rpm, and the reaction is over . Pour it into a separatory funnel to separate the catalyst at the bottom layer, leave it for 24 hours and then separate into layers. The product in the upper ...

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PUM

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Abstract

The invention discloses a solid base catalyst for preparing bio-diesel, characterized in that porous material with the same cubage is dipped in alkali metal or alkaline earth metal soluble salt solution and transition metal element or thulium soluble salt solution, whose weight proportion is that porous material: alkali metal or alkaline earth metal soluble salt: transition metal element of thulium soluble salt is 1: 0.02-1: 0.001-0.2; it is dried, baked, rubbed and screened to be obtained. The invention is provided with good catalytic performance, easy treatment after transesterification, no waste liquid generated and easy separation. It can be used repeatedly and it is easy to be used in industry.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a solid base catalyst for preparing biodiesel. Background technique [0002] Biodiesel is a clean renewable energy source and a high-quality substitute for petrochemical diesel. Use oil crops such as soybean and rapeseed, oil palm and pistachio and other oil forest fruits, engineering microalgae and other oil-bearing aquatic plants, animal fats, waste cooking oil, etc. as raw materials and low-carbon alcohols such as methanol or ethanol in acid or alkaline catalysts The esterification reaction is carried out under the following conditions to generate the corresponding fatty acid methyl ester or ethyl ester, which is biodiesel. The main advantages of biodiesel include: high cetane number, no sulfur and aromatics, good lubricity, high kinematic viscosity, higher flash point than petrochemical diesel, conducive to safe transportation and storage, good low temperature fluidity, ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10B01J23/06B01J32/00C07C67/03C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 郑柏存傅乐峰雷经新王大军
Owner SHANGHAI SUNRISE POLYMER MATERIAL CO LTD
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