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Catalyst for synthesizing biodiesel and preparation method thereof

A technology for synthesizing biology and catalysts, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as easy aggregation, polluting groundwater sources, and affecting catalytic activity , to achieve the effects of not easily broken or hydrolyzed, low production cost, and high catalytic activity

Active Publication Date: 2021-05-04
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, calcium oxide used alone as a biodiesel catalyst has the following disadvantages: the specific surface area of ​​calcium oxide is small, it is easy to agglomerate when used, it is difficult to effectively expose the catalytic active sites, and the utilization rate of the catalyst is low, which seriously affects its catalytic activity.
Most of the waste residues are disposed of by dumping and burying. Because the waste residues are light powders, they are easy to cause air pollution. Some waste residues will enter the surface water, pollute the groundwater source, and endanger people's health.

Method used

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  • Catalyst for synthesizing biodiesel and preparation method thereof
  • Catalyst for synthesizing biodiesel and preparation method thereof
  • Catalyst for synthesizing biodiesel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 10g of cyanamide waste residue, 2g of starch and 10g of water and mix evenly to obtain a mixture; compress the mixture with an extruder, ventilate and dry it, then place it in a tube furnace, feed in nitrogen and heat it to make the material in the tube furnace The temperature reached 700° C. and kept at a constant temperature for 5 hours; then the temperature was lowered and the calcium oxide / carbon composite catalyst was obtained.

Embodiment 2

[0033] Weigh 10 g of cyanamide waste residue, 2 g of carboxymethyl cellulose and 10 g of water and mix them evenly to obtain a mixture; compress the mixture with an extruder, place it in a tube furnace after ventilating and drying, feed nitrogen and heat to make the tube The temperature of the material in the formula furnace reaches 600° C. and is kept constant for 5 hours; then the temperature is lowered and the calcium oxide / carbon composite catalyst is obtained.

Embodiment 3

[0035] Weigh 10g of thiourea waste residue, 2g of starch and 10g of water and mix evenly to obtain a mixture; compress the mixture with an extruder, ventilate and dry it, then place it in a tube furnace, feed nitrogen and heat it, and make the material in the tube furnace The temperature reached 800° C. and kept at a constant temperature for 5 hours; then the temperature was lowered and the calcium oxide / carbon composite catalyst was obtained.

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Abstract

The invention discloses a catalyst for synthesizing biodiesel and a preparation method of the catalyst. The preparation method comprises the following steps: step 1, sufficiently mixing industrial waste residues and an organic binder, and carrying out extrusion molding; and 2, carrying out heat treatment on the industrial waste residues formed in the step 1 in an inert atmosphere at 600-1000 DEG C to obtain the catalyst for synthesizing biodiesel, and the industrial waste residues are waste residues generated by introducing carbon dioxide for precipitation and filtering after lime nitrogen is hydrolyzed in the production process of chemicals taking lime nitrogen as a raw material. According to the preparation method, the industrial waste residues are used as raw materials, the high-activity and high-stability catalyst is obtained with low production cost, the problem of harm of the industrial waste residues to the environment is solved, and the additional value of the industrial waste residues is increased.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a catalyst for synthesizing biodiesel and a preparation method thereof. Background technique [0002] Petroleum resources are dwindling, and problems such as smog, greenhouse effect, and environmental pollution caused by burning fossil fuels have seriously affected people's lives and health. Energy shortages and environmental pollution have become major issues worldwide. Therefore, searching for renewable clean energy, solving energy shortages, and reducing environmental pollution caused by fossil fuel energy combustion have received widespread attention from all countries in the world. [0003] Compared with petrochemical diesel, biodiesel has the advantages of low sulfur content, high cetane number, and less harm to the environment. It is a high-quality and clean fuel and one of the most popular alternative energy sources for petroleum. The most commonly used technical route...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/02B01J35/10C10L1/02C11C3/10
CPCB01J23/02C11C3/10C10L1/02B01J35/633B01J35/615Y02E50/10
Inventor 李瑛蓝国钧邱一洋唐浩东韩文锋
Owner ZHEJIANG UNIV OF TECH
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