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Method for preparing biodiesel from pistacia chinensis bunge

A technology of biodiesel and pistachio, which is applied in the fields of biofuel, petroleum industry, fat production, etc., can solve the problems of secondary pollution by-products, low catalytic efficiency, high reaction temperature, etc., to solve the energy crisis and environmental pollution problems, catalyze High efficiency and high activity effect

Inactive Publication Date: 2016-05-04
GUANGXI KUONENGBA ENERGY TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main method of preparing biodiesel from Pistacia chinensis is the transesterification method, but most of the traditional transesterification methods have low catalytic efficiency, low yield, dark color, easy to deteriorate, long reaction time, corrosive equipment, complicated process, and high reaction temperature. , high energy consumption, easy to cause secondary pollution and by-product loss, high cost and other disadvantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The magnetic nano-catalyst used in this embodiment is ZrO 2 -Fe 3 o 4 . Its preparation method comprises the following steps:

[0023] a. Magnetic Fe 3 o 4 Preparation of nanospheres: FeCl with a mass ratio of 1:3 2 and FeCl 3 Dissolve in distilled water, feed nitrogen, stir at 800r / min, add ammonia water drop by drop until the pH value is 10; then control the temperature at 60°C and 300r / min, stir for 2.5h, cool to room temperature after reaction, Fe collection by magnetite adsorption 3 o 4 Particles were washed with distilled water until neutral, and dried in vacuum at 70°C for 2.5 hours to obtain magnetic Fe 3 o 4 Nano microspheres, the particle size of the microspheres is 45nm.

[0024] b. ZrO 2 -Fe 3 o 4 Preparation of magnetic nanocatalysts: Add magnetic Fe3O4 nanospheres and zirconium nitrate solution with a mass ratio of 1:11 to an ultrasonic stirrer, then add magnetic Fe3O4 3 o 4 Add ethanol with a mass ratio of nanospheres of 1:30, add ammonia ...

Embodiment 2

[0031] The magnetic nano-catalyst used in this embodiment is B 2 o 3 -Fe 3 o 4 . Its preparation method comprises the following steps:

[0032] a. Magnetic Fe 3 o 4 Preparation of nanospheres: FeCl with a mass ratio of 1:2 2 and FeCl 3Dissolve in distilled water, feed nitrogen, stir at 600r / min, add ammonia water drop by drop to pH 11; then control the temperature at 68°C, rotate at 250r / min, stir for 2h, cool to room temperature after reaction, use Magnetic adsorption to collect Fe 3 o 4 The particles were washed with distilled water until neutral, and dried in vacuum at 70°C for 3 hours to obtain magnetic Fe 3 o 4 Nano microspheres, the particle size of the microspheres is 62nm.

[0033] b.B 2 o 3 -Fe 3 o 4 Preparation of magnetic nano-catalyst: Add magnetic Fe3O4 nano-microspheres and boron nitrate solution with a mass ratio of 1:9 to an ultrasonic stirrer, then add ethanol with a mass ratio of 1:26 to the magnetic Fe3O4 nano-microspheres, at a speed of 350r...

Embodiment 3

[0040] The magnetic nano-catalyst used in this embodiment is Al 2 o 3 -Fe 3 o 4 . Its preparation method comprises the following steps:

[0041] a. Magnetic Fe 3 o 4 Preparation of nanospheres: FeCl with a mass ratio of 1:2.5 2 and FeCl 3 Dissolve in distilled water, feed nitrogen, stir at 500r / min, add ammonia water drop by drop to pH 12; then control the temperature at 70°C and 150r / min, stir for 1h, cool to room temperature after reaction, use Magnetic adsorption to collect Fe 3 o 4 The particles were washed with distilled water until neutral, and dried in vacuum at 75°C for 2 hours to obtain magnetic Fe 3 o 4 Nano microspheres, the particle size of the microspheres is 72nm.

[0042] b.Al 2 o 3 -Fe 3 o 4 Preparation of magnetic nanocatalysts: magnetic Fe with a mass ratio of 1:10 3 o 4 Nano-microspheres and aluminum sulfate solution were added to the ultrasonic stirrer, and then added with magnetic Fe 3 o 4 Add ethanol with a mass ratio of nanospheres of...

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Abstract

The invention discloses a method for preparing biodiesel from pistacia chinensis bunge. The method comprises the following steps that a kieselguhr adsorbent is added for pretreating pistacia seed oil to obtain pure pistacia seed oil; the pure pistacia seed oil, methyl alcohol and a magnetic nanoparticle catalyst are added into a reaction kettle according to the weight ratio of 100:25-30:0.5-0.8 for an esterification reaction; biodiesel crude products are separated out, purification is carried out, and therefore the biodiesel is obtained. Due to the fact that the magnetic nanoparticle catalyst is introduced into the esterification reaction, the catalytic efficiency is high, the catalytic effect is significant, and therefore the reaction time is shortened, and the biodiesel yield is improved; the magnetic nanoparticle catalyst can conveniently and rapidly separate and recycle the product according to an external magnetic field, and can be repeatedly recycled. In addition, the method has the advantages that the preparation technology is simple, energy conservation and environment protection are achieved, the reaction time is short, the yield is high, and the product purity is high, has the good social benefits, ecological benefits and economic benefits, and can achieve large-scale industrial production easily.

Description

technical field [0001] The invention relates to the technical field of biomass energy, in particular to a method for preparing biodiesel from Pistacia chinensis. Background technique [0002] At present, the contradiction between the continuous growth of global oil demand and the depletion of fossil energy is becoming increasingly prominent, the energy supply situation is becoming more and more tense, the price of crude oil in the international market continues to rise sharply, and the diversification, renewable and clean energy has become the development of human society. It is an inevitable choice. The development of biomass energy is one of the directions to solve the global energy crisis. As a new alternative energy source, biodiesel is developing rapidly in countries all over the world. Biodiesel refers to oil crops such as soybeans, rapeseed, cotton, palm, etc., wild oil plants and engineering microalgae and other aquatic vegetable oils, animal fats, and catering waste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/04C11B3/10C10L1/02
CPCC10L1/02C11B3/10C11C3/04Y02E50/10
Inventor 梁杰锋杨云蒋小平李建华
Owner GUANGXI KUONENGBA ENERGY TECH DEV CO LTD
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