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Novel solid body base catalyst and applications for biological diesel oil synthesizing

A technology of solid base catalyst and biodiesel, applied in molecular sieve catalysts, physical/chemical process catalysts, biofuels, etc., can solve the problems of wasting raw materials, time-consuming and energy-consuming, etc., and achieve low energy consumption, no environmental pollution, and high yield high effect

Inactive Publication Date: 2008-08-27
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the synthesis of supported solid base involves dissolving the active component with water first, then impregnating, and then filtering or decompressing to evaporate the water, which is a cumbersome process, which is time-consuming, energy-consuming, and wastes a lot of raw materials.

Method used

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  • Novel solid body base catalyst and applications for biological diesel oil synthesizing
  • Novel solid body base catalyst and applications for biological diesel oil synthesizing
  • Novel solid body base catalyst and applications for biological diesel oil synthesizing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Preparation of the 1st step solid base catalyst

[0016] Take 10g of potassium fluoride aqueous solution with a mass fraction of 30%, add 8g of alumina, stir at 70°C for 4h, spin evaporate at 80°C to remove water, and then roast in a muffle furnace at 500°C for 5h to obtain the product.

[0017] Step 2 transesterification reaction

[0018] Add 5g of rapeseed oil, 1.5g of methanol, and 0.1g of the above-mentioned solid base catalyst into a 100mL three-necked flask equipped with electromagnetic stirring, a thermometer, and a reflux condenser, heat under reflux and stir for 2 hours, and heat to 90°C.

[0019] Step 3 Separation of catalyst and purification of product

[0020] Filter the reacted material in the three-necked bottle, the filtered catalyst can be directly used in the next reaction, the filtrate is separated to separate the lower layer of glycerin, and the upper layer product is added with 6% NaHCO 3 Solution 70ml washes to neutrality, to remove unreacted free...

Embodiment 2-6

[0022] Except for the following differences, all the others are the same as in Example 1. In the process of preparing the catalyst, the amount of alumina used in Table 1 is used.

[0023] Table 1

[0024]

Embodiment 7-15

[0026] Except for the following differences, the others are the same as in Example 1, and the carriers shown in Table 2 are used respectively.

[0027] Table 2

[0028]

[0029]

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PUM

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Abstract

The invention discloses a novel solid base catalyst and application thereof in the preparation of biodiesel oil. The catalyst is prepared by loading potassium fluoride as an active component on carriers; and calcining at a high temperature. The carrier is alumina, activated carbon or diatomite. The biodiesel oil is prepared by transesterification including adding oil and fat, low carbon alcohol and the solid base catalyst into a three-neck container; refluxing under heating and stirring; filtering to remove the catalyst; demixing the filtrate; separating glycerol at the lower layer, adding NaHCO3 solution into the mixture at the upper layer; washing until a neutral condition; drying with anhydrous MgSO4; and reduced pressure distilling. The application of the catalyst in the preparation of biodiesel oil has the advantages of high yield, cheap catalyst, small catalyst consumption, mild reaction conditions, short reaction time, reutilization of catalyst, environment friendliness and low requirement to raw material.

Description

technical field [0001] The invention relates to the technical field of organic chemical synthesis, in particular to a novel solid base catalyst and its application in biodiesel synthesis. Background technique [0002] With the decreasing mineral resources such as petroleum and their impact on the earth's environment, the development of new green and renewable fuel resources has become an issue of widespread concern. Biodiesel is a mono-alkyl ester of long-chain fatty acid, free of sulfur and aromatics, high cetane number, and good lubricating performance, it is a high-quality clean fuel. At the same time, biodiesel has incomparable advantages over traditional fossil fuels. The raw material is renewable biomass oil. The product itself is environmentally friendly, biodegradable, high flash point, non-toxic, low in volatile organic compounds (VOC), and has a high calorific value. High, complete combustion, no need to replace and clean the engine frequently, and it is also a ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/12B01J29/70C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 杨建国梁学正高珊权南南张敬鲍少华王箭何鸣元
Owner EAST CHINA NORMAL UNIV
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