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Solid base biodiesel catalyst with animal bones as carrier and preparation method thereof

A biodiesel and solid base technology, applied in the direction of physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., can solve the problems of low catalytic efficiency, easy loss of active components, easy deactivation, etc., and achieve repeatable Good availability, low price, and the effect of increasing the contact area

Inactive Publication Date: 2018-06-15
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing composite catalysts have the problem that the active components of the solid base catalyst are easily lost during the reaction, and are easily deactivated under higher temperature conditions, and the catalytic efficiency is not high.

Method used

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  • Solid base biodiesel catalyst with animal bones as carrier and preparation method thereof
  • Solid base biodiesel catalyst with animal bones as carrier and preparation method thereof
  • Solid base biodiesel catalyst with animal bones as carrier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of the solid base biodiesel catalyst with animal bone as carrier, comprises the steps:

[0021] (1) Clean the pig bones and dry them in a drying oven at 105°C for 24 hours. The dried pig bones are crushed with a pulverizer and passed through a 170-mesh sieve to obtain powder solids. Biochar was obtained by pyrolysis for 2 hours.

[0022] (2) Mix 2 g of biochar obtained in step (1) with a KOH solution with a volume of 500 mL and a concentration of 2 mol / L, stir for 1 h at a speed of 700 r / min, and filter the resulting mixed solution to obtain the filtered The filtrate was washed 5 times with deionized water, and the pH value of the aqueous solution after washing was 7.0. The filtrate was dried in an oven at 105° C. for 24 hours to obtain activated biochar.

[0023] (3) Take 0.6g K 2 CO 3 Dissolved in 100mL of water to obtain K 2 CO 3 Solution, weigh the biochar 1.4g after the activation that step (2) obtains and dissolve in K 2 CO 3 In the s...

Embodiment 2

[0038] The preparation method of the solid base biodiesel catalyst with animal bone as carrier, comprises the steps:

[0039] (1) Clean the pig bones and dry them in a drying oven at 105°C for 24 hours. The dried pig bones are crushed with a pulverizer and passed through a 170-mesh sieve to obtain powder solids. Pyrolysis for 2 hours to obtain biochar.

[0040] (2) Mix 2 g of biochar obtained in step (1) with a KOH solution with a volume of 500 mL and a concentration of 1 mol / L, stir for 1 h at a speed of 700 r / min, and filter the resulting mixed solution to obtain the filtered The filtrate was washed 5 times with deionized water, and the pH value of the aqueous solution after washing was 7.0. The filtrate was dried in an oven at 105° C. for 24 hours to obtain activated biochar.

[0041] (3) Take 0.6g K 2 CO 3 Dissolved in 100mL of water to obtain K 2 CO 3 Solution, weigh the biochar 1.4g after the activation that step (2) obtains and dissolve in K 2 CO 3 In the solutio...

Embodiment 3

[0044] The preparation method of the solid base biodiesel catalyst with animal bone as carrier, comprises the steps:

[0045] (1) Clean the pig bones and dry them in a drying oven at 105°C for 24 hours. The dried pig bones are crushed with a pulverizer and passed through a 170-mesh sieve to obtain powder solids. Pyrolysis for 2 hours to obtain biochar.

[0046] (2) Mix 2 g of biochar obtained in step (1) with a KOH solution with a volume of 500 mL and a concentration of 3 mol / L, stir for 1 h at a speed of 700 r / min, and filter the resulting mixed solution to obtain the filtered The filtrate was washed 5 times with deionized water, and the pH value of the aqueous solution after washing was 7.0. The filtrate was dried in an oven at 105° C. for 24 hours to obtain activated biochar.

[0047] (3) Take 0.6g K 2 CO 3 Dissolved in 100mL of water to obtain K 2 CO 3 Solution, weigh the biochar 1.4g after the activation that step (2) obtains and dissolve in K 2 CO 3 In the solutio...

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Abstract

The invention provides a solid base biodiesel catalyst with animal bones as a carrier and a preparation method thereof. The preparation method includes the following steps: drying and crushing washedpig bones for pyrolyzing to obtain biocharcoal; mixing and stirring the biocharcoal and a potassium hydroxide solution, filtering, washing filtrate with deionized water until the pH value of the watersolution after the filtrate is washed is 6.8-7.2, and drying the filtrate to obtain activated biocharcoal; adding the activated biocharcoal to a potassium carbonate solution to stir evenly to preparea composite catalyst, drying and calcining to obtain the solid base biocatalyst. The pig bones are used to prepare the catalyst carrier. The pig bones contain rich organic matters. The main components of the pyrolyzed biocharcoal are hydroxyapatite and carbon. The hydroxyapatite can interact with active substance K2CO3 to form a KCaPO4 structure. The structure can effectively prevent the loss ofmetal ion K +. The catalytic activity and catalytic stability of the catalyst are guaranteed.

Description

Technical field: [0001] The invention belongs to the technical field of biodiesel catalysts, and in particular relates to a solid alkali biodiesel catalyst with animal bones as a carrier and a preparation method thereof. Background technique: [0002] The depletion of traditional energy requires the development of new renewable energy. Biodiesel, as a non-toxic, green and renewable energy, has been widely concerned. Biodiesel is mainly produced by transesterification of animal and vegetable oils or waste oils with high acid value and methanol. Homogeneous catalysis is used in traditional biodiesel production. Although the catalytic reaction is fast and the yield of biodiesel is high, the homogeneous reaction has problems such as corrosive equipment, complicated post-treatment of products, difficult recovery and large amount of waste water. Therefore, the application of heterogeneous catalysts in the production of biodiesel has attracted much attention. There are many types...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/18B01J32/00C10L1/02C11C3/10
CPCB01J27/1806B01J32/00C10L1/02C11C3/10Y02E50/10
Inventor 袁浩然王舒笑单锐顾菁
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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