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Polyaniline coated carbon material-based solid base catalyst, and application thereof in preparation of biodiesel

A technology of polyaniline and bio-carbon materials, which is applied in the direction of catalytic reaction, ester group and hydroxyl reaction preparation, physical/chemical process catalyst, etc., can solve problems such as equipment corrosion and environmental pollution, and achieve the effect of easy separation and high catalytic efficiency

Pending Publication Date: 2018-12-04
YANGZHOU POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many methods for preparing biodiesel, large-scale industrial production still uses traditional homogeneous catalysis such as liquid acid and alkali, and the commonly used homogeneous catalysts include CaO, H 2 SO 4 , NaOH, etc., which seriously corrode the equipment, and the products need to be neutralized and washed, resulting in the production of a large amount of industrial wastewater and environmental pollution

Method used

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  • Polyaniline coated carbon material-based solid base catalyst, and application thereof in preparation of biodiesel
  • Polyaniline coated carbon material-based solid base catalyst, and application thereof in preparation of biodiesel
  • Polyaniline coated carbon material-based solid base catalyst, and application thereof in preparation of biodiesel

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (1) Take dried sweet potato leaves (400g), heat up to 600 degrees under nitrogen protection, and after carbonization for 6 hours, cool to room temperature naturally to obtain biochar material;

[0033] (2) Take the biochar material (10g) obtained in step (1) and soak it in hydrochloric acid solution (1.0mol / L, 150mL) ultrasonically (30kHz) for 5 hours, add aniline (5mL), and add ammonium persulfate under ice bath solution (0.5mol / L, 100mL), continue to react in an ice bath for 10h, filter, precipitate, wash, and dry to obtain a polyaniline-coated biochar material (hereinafter referred to as product a).

Embodiment 2

[0035] (1) Take dried sweet potato leaves (400g), heat up to 700 degrees under nitrogen protection, and after carbonization for 5 hours, cool to room temperature naturally to obtain biochar materials;

[0036] (2) Take the biochar material (10g) obtained in step (1) and soak it in hydrochloric acid solution (2.0mol / L, 100mL) ultrasonically (40kHz) for 4 hours, add aniline (5mL), and add ammonium persulfate under ice bath solution (1.0 mol / L, 75 mL), continue to react in an ice bath for 6 h, filter, precipitate, wash, and dry to obtain a polyaniline-coated biochar material (hereinafter referred to as product b).

Embodiment 3

[0038] Take product a (4g) and KF (4g), K 2 CO 3 (12g) was mixed and ball milled for 6 hours, washed with water and absolute ethanol in sequence, and vacuum-dried at 90°C for 24 hours to obtain polyaniline-coated biochar material loaded with alkali (hereinafter referred to as product A).

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Abstract

The invention relates to a polyaniline coated carbon material-based solid base catalyst, and an application thereof in the preparation of biodiesel. A preparation method of the solid base catalyst comprises the following steps: mixing and ball-milling a polyaniline coated carbon material, KF and K2CO3 for 6 h, sequentially washing the obtained mixture with water and anhydrous ethanol, and performing vacuum drying at 90 DEG C for 24 h to obtain the solid base catalyst.

Description

technical field [0001] The invention belongs to the field of biodiesel catalysts, and in particular relates to a polyaniline-coated carbon material-based solid base catalyst and its application in preparing biodiesel. Background technique [0002] Biodiesel has become a research hotspot in various countries because of its environmental friendliness and renewability. Biodiesel uses vegetable oil, animal fat oil, waste cooking oil, etc. as raw materials, and performs transesterification with low molecular weight alcohols to obtain fatty acid alkyl monoesters. Its properties are very close to those of mineral diesel, and it is a renewable clean fuel. Although there are many methods for preparing biodiesel, large-scale industrial production still uses traditional homogeneous catalysis such as liquid acid and alkali, and the commonly used homogeneous catalysts include CaO, H 2 SO 4 , NaOH, etc., which seriously corrode the equipment, and the products need to be neutralized and ...

Claims

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Application Information

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IPC IPC(8): B01J31/06C10L1/02C11C3/10C07C67/03C07C69/003
CPCC10L1/02C11C3/10C07C67/03B01J31/06B01J2231/49B01J35/396C07C69/003Y02E50/10
Inventor 毛楚畅韦玲罗志臣王雪源戴凯麒葛本
Owner YANGZHOU POLYTECHNIC INST