Method for preparing biodiesel from malania oleifera oil

A technology for biodiesel and garlic oil, which is applied in the fields of biofuel, fat oil/fat refining, chemical instruments and methods, etc., can solve the problems of secondary pollution by-products, low catalytic efficiency, and high reaction temperature, so as to solve the energy crisis and Environmental pollution problem, high catalytic efficiency, 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 using garlic fruit biodiesel is transesterification, but most of the traditional transesterification methods have low catalytic efficiency, low yield, dark color, easy deterioration, long reaction time, corrosion of equipment, complicated process, high reaction temperature, and energy consumption. Disadvantages such as large consumption, easy to cause secondary pollution and by-product loss, and high cost

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 Al 2 o 3 -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 1:2.5 2 and FeCl 3 Dissolve in distilled water, feed nitrogen, stir at 1000r / min, add ammonia water drop by drop to pH 11; then control the temperature to 75°C, rotate at 300r / 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 75°C for 3 hours to obtain magnetic Fe 3 o 4 Nano microspheres, the particle size of the microspheres is 56nm.

[0024] 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 Ethanol with a mass ratio of nanosphere...

Embodiment 2

[0031] The magnetic nano-catalyst used in this embodiment is ZrO 2 -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 1:32 and FeCl 3 Dissolve in distilled water, feed nitrogen, stir at 800r / min, add ammonia water drop by drop until the pH value is 12; then control the temperature to 78°C, rotate at 250r / min, stir for 1.5h, cool to room temperature after reaction, Fe collection by magnetite adsorption 3 o 4 The particles were washed with distilled water until neutral, and dried in vacuum at 80°C for 2 hours to obtain magnetic Fe 3 o 4 Nano microspheres, the particle size of the microspheres is 45nm.

[0033] 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 Ethanol with a mass ratio of nanospheres of 1:35, at a speed...

Embodiment 3

[0040] The magnetic nano-catalyst used in this embodiment is B 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 1:3.5 2 and FeCl 3 Dissolve in distilled water, feed nitrogen, stir at 700r / min, add ammonia water drop by drop to pH 11; then control the temperature at 65°C and 200r / min, stir for 3h, 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 68nm.

[0042] b.B 2 o 3 -Fe 3 o 4 Preparation of magnetic nanocatalysts: magnetic Fe with a mass ratio of 1:8 3 o 4 Nano-microspheres and boron nitrate 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 1:25,...

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Abstract

The invention discloses a method for preparing biodiesel from malania oleifera oil. The method includes the following steps that a kieselguhr adsorbent is added to pretreat malania oleifera oil, and pure malania oleifera oil is obtained; pure malania oleifera oil, methyl alcohol and a magnetic nanocatalyst are added into a reaction still for an esterification reaction at the weight ratio of 100:(25-40):(0.8-1.2); after separation of a biodiesel crude product and purification, biodiesel can be obtained. According to the method, the magnetic nanocatalyst is introduced into the esterification reaction and is high in catalytic efficiency and significant in catalytic effect, so that the reaction time is shortened, and the biodiesel yield is increased; besides, the magnetic nanocatalyst can be conveniently and rapidly separated and recycled through an external magnetic field to be repeatedly used. 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, and has great social benefits, ecological benefits and economic benefits, and large-scale industrial production can be easily achieved.

Description

technical field [0001] The invention relates to the technical field of biomass energy, in particular to a method for preparing biodiesel from garlic fruit oil. 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 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/10C10L1/02C11C3/10B01J23/745B01J35/00
CPCB01J23/002B01J23/745B01J35/0033B01J2523/00C10L1/02C11B3/10C11C3/10B01J2523/842B01J2523/305B01J2523/48B01J2523/31Y02E50/10
Inventor 梁杰锋杨云蒋小平李建华
Owner GUANGXI KUONENGBA ENERGY TECH DEV CO LTD
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