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Novel solid body base catalyst and applications thereof in biological diesel oil synthesizing

A technology of solid alkali catalyst and biodiesel, which is applied in the direction of physical/chemical process catalyst, biofuel, biological raw material, etc., can solve the problems of wasting raw material, time-consuming and energy-consuming, etc., and achieve high raw material utilization rate, no environmental pollution, and high production high rate 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 thereof in biological diesel oil synthesizing
  • Novel solid body base catalyst and applications thereof in biological diesel oil synthesizing
  • Novel solid body base catalyst and applications thereof in biological diesel oil synthesizing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Preparation of the 1st step solid base catalyst

[0017] Put 6g of magnesium nitrate and 10g of potassium hydroxide in a mortar, grind it at room temperature for about 1 hour, and then roast it in a muffle furnace at 800°C for 5 hours to obtain it.

[0018] Step 2 transesterification reaction

[0019] 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.

[0020] Step 3 Separation of catalyst and purification of product

[0021] Filter the material in the three-necked bottle, the filtered catalyst can be directly used for the next reaction, the filtrate is separated to separate the lower layer of glycerin, and the upper layer mixture is added with 6% NaHCO 3 Solution 70ml washes to neutrality, to remove unreacted free fatty acid, separates the upper layer organic...

Embodiment 2-6

[0023] Except following difference, all the other are identical with embodiment 1, in the process of preparing catalyst, magnesium nitrate is by the consumption of table 1.

[0024] Table 1

[0025]

Embodiment 7-11

[0027] Except for the following differences, all the other are the same as in Example 1, using the nitrates shown in Table 2 respectively.

[0028] Table 2

[0029]

[0030]

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PUM

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Abstract

The invention discloses a solid base catalyst and application thereof on the preparation of biodiesel. The catalyst is prepared by the solid-phase reaction between metal nitrate and base or alkali carbonate and calcining at a high temperature. The biodiesel 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 to mixture at the upper layer; drying with anhydrous MgSO4; reducing the pressure and distilling. The application of the catalyst on the preparation of the biodiesel has the advantages of high yield, cheap catalyst, small catalyst consumption, mild reaction conditions, short reaction time, reutilization of the catalyst, environment friendliness and low requirement for the raw material.

Description

technical field [0001] The invention relates to the technical field of organic chemical synthesis, in particular to a solid base catalyst and its application in preparing biodiesel. 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 raw mate...

Claims

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Application Information

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IPC IPC(8): B01J23/04B01J23/06B01J27/232C10G3/00
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