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A kind of preparation method of composite bio-based immobilized biodiesel catalyst

A biodiesel, catalyst technology, applied in the direction of organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, catalyst carrier, etc., can solve problems such as easy aggregation compatibility, achieve high catalytic activity, source Broad, Inexpensive Effects

Active Publication Date: 2019-12-13
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although graphene has many excellent properties, graphene sheets are easy to aggregate and have poor compatibility with other materials, while graphene oxide not only still has excellent mechanical properties of graphene, but also contains a variety of oxygen-containing functional groups on the surface, making it easier to Composite with other materials to prepare the required new composite materials

Method used

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  • A kind of preparation method of composite bio-based immobilized biodiesel catalyst
  • A kind of preparation method of composite bio-based immobilized biodiesel catalyst
  • A kind of preparation method of composite bio-based immobilized biodiesel catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0033](1) Mix 5g of cellulose and 50g of 1-butyl-3-methylimidazolium chloride ionic liquid into a 100mL microwave reaction vial, place the microwave vial in a microwave reactor at a temperature of 40°C, a power of 500W, and a time of 6 minute.

[0034] (2) Graphene oxide prepared by Hummer's method was formulated into 40 mL of graphite oxide solution with a mass percent concentration of 0.625 mg / mL. The graphite oxide was peeled off by a high-speed homogenizer, the speed of the high-speed homogenizer was 8000 rpm, the ultrasonic power was 200W, the temperature was 20°C, and the time was 2 hours. Mix the cellulose solution prepared in step (1) with the prepared graphene oxide solution evenly.

[0035] (3) Add 8 mL of cyclohexane and 0.8 mL of Tween 60 into the mixed graphene oxide / cellulose solution prepared in step (2), and stir mechanically at a high speed at 90° C. for 10 minutes to emulsify it. At the same time, take 250mL of 10# transformer oil and put it into a 500mL ro...

Embodiment 2

[0042] (1) Mix 5g of cellulose and 40g of 1-allyl-3-methylimidazolium chloride ionic liquid into a 100mL microwave reaction vial, place the microwave vial in a microwave reactor at a temperature of 50°C, a power of 600W, and a time of 5 minutes.

[0043] (2) The graphene oxide prepared by Hummer's method was prepared into 40 mL of graphene oxide solution whose mass percent concentration was 1 mg / mL. The graphite oxide was peeled off by a high-speed homogenizer, the speed of the high-speed homogenizer was 9000 rpm, the ultrasonic power was 300W, the temperature was 25°C, and the time was 1 hour. Mix the cellulose solution prepared in step (1) with the prepared graphene oxide solution evenly.

[0044] (3) Add 8 mL of cyclohexane and 0.8 mL of Tween 60 into the mixed graphene oxide / cellulose solution prepared in step (2), and stir mechanically at a high speed at 90° C. for 10 minutes to emulsify it. At the same time, take 250mL of 25# transformer oil and put it into a 500mL rou...

Embodiment 3

[0051] (1) Mix 5g of cellulose and 45g of 1-methyl-3-butylimidazolium acetate ionic liquid into a 100mL microwave reaction vial, place the microwave vial in a microwave reactor at a temperature of 60°C, a power of 800W, and a time of 4 minute;

[0052] (2) The graphene oxide prepared by Hummer's method was prepared into 40 mL graphene oxide solution whose mass percent concentration was 2.5 mg / mL. The graphite oxide was peeled off by a high-speed homogenizer, the speed of the high-speed homogenizer was 10000 rpm, the ultrasonic power was 200W, the temperature was 30°C, and the time was 2 hours. Mix the cellulose solution prepared in step (1) with the prepared graphene oxide solution evenly.

[0053] (3) Add 8 mL of cyclohexane and 0.8 mL of Tween 60 into the mixed graphene oxide / cellulose solution prepared in step (2), and stir mechanically at a high speed at 90° C. for 10 minutes to emulsify it. At the same time, take 200mL of 25# transformer oil and put it into a 500mL roun...

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Abstract

The invention relates to a preparation method of a graphene oxide / cellulose composite biological supported biodiesel catalyst. The graphene oxide / cellulose composite biobased supported catalyst is made by adopting microwave-assisted ionic liquid dissolution cellulose technology, high-speed homogeneous ultrasonic-assisted peeling technology, particle-size-controllable sphere preparation technology, composite microsphere amino modification technology and supporting-amount-controllable composite microsphere supporting technology. Through adjustment of technical parameters, catalysts with different particle sizes, amino grafting types and heteropoly acid supporting amounts are obtained and can be used for adapting to different base oil types, reactant consumption and reaction environments, thereby achieving the maximum biodiesel yield. Moreover, the prepared composite microsphere catalyst selects renewable raw materials, is low in price, and is green and eco-friendly. The catalyst is excellent in catalytic activity and mechanical property, high in recycling frequency, and convenient to recycle after reaction, and is an ideal heterogeneous catalyst in biodiesel production.

Description

technical field [0001] The invention relates to the technical field of biodiesel preparation, in particular to a method for preparing a heteropolyacid catalyst immobilized on graphene oxide / cellulose composite microspheres and a method for preparing biodiesel by catalyzing an esterification reaction. Background technique [0002] With the depletion of fossil energy and the deterioration of the global ecological environment, the development of green and environmentally friendly renewable energy has become an inevitable trend. As a substitute for petroleum fuel, biodiesel has the advantages of no sulfur and aromatic hydrocarbons, easy biodegradation, high cetane number, good lubrication performance, safe storage and transportation, good antiknock performance, and high energy density. A new type of biomass liquid fuel that has great development potential and needs to be developed and promoted urgently. [0003] At present, the widely used preparation method is to obtain biodie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/34B01J32/00B01J21/18B01J35/08
CPCB01J21/18B01J27/188B01J31/069B01J31/34B01J35/08
Inventor 付玉杰王希清刘志国罗猛顾成波姚丽萍李天凤
Owner NORTHEAST FORESTRY UNIVERSITY
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