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Solid basic catalyst and preparation method and application thereof

A solid base catalyst, catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of high cost, low biodiesel production efficiency, and product processing. complex problems, to achieve the effect of fast heating rate, sensitive temperature program control, and good catalytic activity

Inactive Publication Date: 2011-09-07
BEIJING FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, there are also problems with the use of homogeneous catalysts: the use of catalysts such as sodium hydroxide, potassium hydroxide, sodium methoxide, etc., there are requirements for raw materials, harsh conditions of anhydrous and acid-free, saponification phenomenon, complex post-processing of products, etc. shortcoming
[0010] In order to overcome the shortcomings of the prior art, problems such as high cost and low production efficiency of biodiesel, the inventor has carried out a large number of tests to finally determine the present invention.

Method used

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  • Solid basic catalyst and preparation method and application thereof
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  • Solid basic catalyst and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: the preparation method of solid catalyst

[0048] 1. Preparation method

[0049] 1) Calcium nitrate, magnesium nitrate and zinc nitrate are mixed in a mass ratio of 1.0: 1.8: 2.3, dissolved in 500ml of distilled water to obtain a nitrate mixed solution;

[0050] 2) Dissolve ammonium carbonate in 500ml of distilled water to obtain a 1mol / l carbonate solution;

[0051] 3) while rapidly stirring the nitrate solution, slowly add the carbonate solution, control the pH value of the solution to 7, and react for 3 hours to form a precipitate;

[0052] 4) Suction filter the obtained precipitate, wash with hot water, and dry at 60° C. for 10 h. The solid base catalyst was obtained by grinding the dried product into a white powder and calcining it in a microwave muffle furnace at 1000° C. for 5 hours.

[0053] 2. The yield of the solid base catalyst is 26.2%.

[0054] 3. The mass ratio of calcium oxide, magnesium oxide and zinc oxide in the solid base catalyst is 1...

Embodiment 2

[0055] Embodiment 2: the preparation method of solid base catalyst

[0056] 1. Preparation method

[0057] 1) Calcium nitrate, magnesium nitrate and zinc nitrate are mixed in a mass ratio of 2.2: 1.0: 8.9 and dissolved in 500ml of distilled water to obtain a nitrate mixed solution;

[0058] 2) Dissolve sodium carbonate in 500ml of distilled water to obtain a 1mol / l carbonate solution;

[0059] 3) while rapidly stirring the nitrate solution, slowly add the carbonate solution, control the pH value of the solution to 6.5, and react for 4 hours to form a precipitate;

[0060] 4) Suction filter the obtained precipitate, wash with hot water, and dry at 110°C for 1 hour;

[0061] 5) Grinding the dried material to obtain a white powder, and calcining the white powder in a microwave muffle furnace at 800° C. for 2 hours to obtain the solid base catalyst.

[0062] 2. The yield of the solid base catalyst is 36.1%.

[0063] 3. The mass ratio of calcium oxide, magnesium oxide and zinc ...

Embodiment 3

[0064] Embodiment 3: the preparation method of solid base catalyst

[0065] 1. Preparation method:

[0066] 1) Calcium nitrate, magnesium nitrate and zinc nitrate are mixed in a mass ratio of 2.2:7.2:1.3 and dissolved in 500ml of distilled water to obtain a nitrate mixed solution;

[0067] 2) Potassium carbonate was dissolved in 500ml of distilled water to obtain a 1mol / l carbonate solution;

[0068] 3) while rapidly stirring the nitrate solution, slowly add the carbonate solution, control the pH value of the solution to 7.5, and react for 4 hours to form a precipitate;

[0069] 4) Suction filter the obtained precipitate, wash with hot water, and dry at 110°C for 4 hours;

[0070] 5) Grinding the dried material into a white powder, and putting the white powder into a microwave muffle furnace for calcination at 700° C. for 3 hours to obtain the solid base catalyst.

[0071] 2. The yield of the solid base catalyst is 27.5%.

[0072] 3. The mass ratio of calcium oxide, magnes...

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Abstract

The invention relates to a novel solid basic catalyst, a preparation method and application thereof to biodiesel transformation. The solid basic catalyst comprises calcium oxide, magnesium oxide and zinc oxide in the mass ratio of (1.0-3.2):(0.6-3.9):(1.0-16.5). By adopting the invention, a solid basic catalyst can be prepared at low cost, biodiesel can be obtained by quickly and efficiently catalyzing an ester exchange reaction between plant oil and methanol, the biodiesel can be separated from byproducts and the catalyst by centrifuging, and product separation is easy; meanwhile, the production cost can be lowered greatly, and the production efficiency is improved.

Description

technical field [0001] This paper relates to a new type of solid base catalyst, in particular to a new type of solid base catalyst containing three oxides of calcium, magnesium and zinc, its preparation method and its application in biodiesel conversion. Background technique [0002] With the rapid development of the economy, the consumption of petroleum products increases rapidly. Energy security has become more and more important. Vigorously developing bio-energy can effectively broaden the way to obtain energy, and bio-energy has excellent characteristics such as environmental protection and renewable, which can better achieve healthy economic development. [0003] As a kind of bio-energy, biodiesel has easy access to raw material vegetable oil, simplified production process, high unit calorific value of the product, and can be directly applied to existing diesel engines without structural modification. These advantages make biodiesel huge. Market potential. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/06C11C3/10C10L1/02
CPCY02E50/13Y02E50/10
Inventor 蒋建新邢杨蒲志鹏李雪朱莉伟
Owner BEIJING FORESTRY UNIVERSITY
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