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A kind of gear-shaped biodiesel catalyst and preparation method thereof

A biodiesel, gear-like technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of large specific surface area, many active sites, and difficult products. Separation and other problems, to achieve the effect of high catalytic activity and large specific surface area

Active Publication Date: 2020-05-12
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of environmental pollution of catalysts in the prior art, low reutilization rate, difficult separation of products, etc., the object of the present invention is to provide a gear-shaped biodiesel catalyst and a preparation method thereof. The catalyst of the present invention has a gear-shaped structure, It has a large specific surface area and many active sites; it is used to react biomass oil and methanol to prepare biodiesel, with high catalytic efficiency and can be used repeatedly

Method used

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  • A kind of gear-shaped biodiesel catalyst and preparation method thereof
  • A kind of gear-shaped biodiesel catalyst and preparation method thereof
  • A kind of gear-shaped biodiesel catalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A gear-shaped biodiesel catalyst and a preparation method thereof, which are prepared by the following method:

[0024] (1) Weigh a certain amount of melamine and place it in a muffle furnace to roast for 1 hour at a heating rate of 10°C / min, then cool down naturally to obtain a light yellow powder g-C 3 N 4 , grind the powder into 200 mesh for later use;

[0025] (2) Weigh a certain amount of g-C 3 N 4 Place in a beaker to make a solution and stir vigorously for 4 hours, g-C 3 N 4 The mass ratio with water is 1:80;

[0026] (3) Weigh a certain amount of CaCl 2 , Al(NO 3 ) 3 9H 2 O, La(NO 3 ) 3 ·6H 2 O is added to the above solution to dissolve, the molar ratio of the two trivalent metal ions is 1:1, and the molar ratio of divalent metal ions to trivalent particles is 3:1;

[0027] (4) Prepare a certain concentration of NaOH solution, slowly drop it in the above solution for a period of time and put it in the oven to rest. spare;

[0028] (5) Place the dr...

Embodiment 2

[0033] A gear-shaped biodiesel catalyst and a preparation method thereof, which are prepared by the following method:

[0034] (1) Weigh a certain amount of melamine and place it in a muffle furnace to roast for 1 hour at a heating rate of 10°C / min, then cool down naturally to obtain a light yellow powder g-C 3 N 4 , grind the powder into 200 mesh for later use;

[0035] (2) Weigh a certain amount of g-C 3 N 4 Place in a beaker to make a solution and stir vigorously for 2 hours, g-C 3 N 4 The mass ratio with water is 1:80;

[0036] (3) Weigh a certain amount of CaCl 2 , Al(NO 3 ) 3 9H 2 O, La(NO 3 ) 3 ·6H 2 O is added to the above solution to dissolve, the molar ratio of the two trivalent metal ions is 1:1, and the molar ratio of divalent metal ions to trivalent particles is 4:1;

[0037] (4) Prepare a certain concentration of NaOH solution, slowly drop it in the above solution for a period of time and put it in an oven to rest. spare;

[0038] (5) The dried sol...

Embodiment 3

[0041] A gear-shaped biodiesel catalyst and a preparation method thereof, which are prepared by the following method:

[0042] (1) Weigh a certain amount of melamine and place it in a muffle furnace to roast for 1 hour at a heating rate of 10°C / min, then cool down naturally to obtain a light yellow powder g-C 3 N 4 , grind the powder into 200 mesh for later use;

[0043] (2) Weigh a certain amount of g-C 3 N 4 Place in a beaker to make a solution and stir vigorously for 4 hours, g-C 3 N 4 The mass ratio with water is 1:80;

[0044] (3) Weigh a certain amount of CaCl 2 , Al(NO 3 ) 3 9H2 O, La(NO 3 ) 3 ·6H 2 O is added to the above solution to dissolve, the molar ratio of the two trivalent metal ions is 1:1, and the molar ratio of divalent metal ions to trivalent particles is 5:1;

[0045] (4) Prepare a certain concentration of NaOH solution, slowly drop it in the above solution for a period of time and put it in an oven to rest. ;

[0046] (5) The dried solid is p...

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Abstract

The invention discloses a gear-shaped biodiesel catalyst and a preparation method thereof. The preparation method comprises the following steps: preparing a Ca / Al / La biodiesel catalyst with a pore structure from graphite phase-like carbon nitride (g-C3N4) as a template agent, that is, roasting melamine so as to prepare g-C3N4, dispersing CaCl2, Al(NO3).9H2O, La(NO3)3.6H2O and g-C3N4 in water, after dispersion, slowly dropping a NaOH into a mixed solution, performing continuous reaction for a certain time, performing reaction in an oven, performing suction filtration, drying, and roasting, thereby obtaining the Ca / Al / La biodiesel catalyst. The catalyst disclosed by the invention is relatively large in specific surface area, rich in active site and very high in catalysis activity and can be repeatedly used, and the use amount of the catalyst only accounts for 0.5-2% of the mass of biomass oil.

Description

technical field [0001] The invention specifically relates to a gear-shaped biodiesel catalyst and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] With the continuous development of the world economy, the human demand for energy is increasing, and the use of crude oil will cause great environmental pollution. At the same time, the petrochemical energy in the world is also facing the serious problem of being exhausted. Therefore, looking for a A kind of renewable green energy has become a top priority, and biodiesel is very promising to replace fossil biodiesel. However, in the process of preparing biodiesel, the excessive use of traditional strong acid and strong alkali catalysts will still cause serious pollution to the environment. A catalyst that can be reused, has a high yield, and is environmentally friendly needs to be solved urgently. [0003] At present, the preparation of biodiesel is mainly based o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/10B01J21/02B01J23/02C10L1/02C11C3/10
CPCB01J21/02B01J23/02B01J23/10C10L1/02C11C3/10Y02E50/10
Inventor 韩生颜松赵志成蔺华林常伟连俊刘玥冉许广文
Owner SHANGHAI INST OF TECH
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