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Preparation method and application of a biomass honeycomb semi-coke-supported nickel-iron nanoparticle catalyst

A particle catalyst, biomass technology, applied in catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve problems such as a large amount of flue gas, tar production, and energy waste , to reduce pollution, increase specific surface area and pore volume, and reduce preparation cost

Active Publication Date: 2021-03-30
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of modern society, a large amount of waste biomass will be produced. Composting and incineration are mainly used for the treatment of waste biomass, but this method will generate a lot of smoke and waste energy.
At this stage, various thermochemical technologies (such as pyrolysis and gasification) convert biomass into high-value products, but in this process, the key problem of tar is inevitably generated

Method used

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  • Preparation method and application of a biomass honeycomb semi-coke-supported nickel-iron nanoparticle catalyst
  • Preparation method and application of a biomass honeycomb semi-coke-supported nickel-iron nanoparticle catalyst
  • Preparation method and application of a biomass honeycomb semi-coke-supported nickel-iron nanoparticle catalyst

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Experimental program
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Effect test

Embodiment 1

[0030] The raw material of Sargassum algae was washed with deionized water, dried at 105°C for 48 hours, crushed with a pulverizer, sieved to 40-80 mesh, and then dried for later use;

[0031] Weigh 13.5 g FeCl 3 ·6H 2 O and 11.85 gNiCl 2 ·6H 2 O solid was dissolved in 200 mL deionized water, weighed 20 g dry Sargassum powder and added FeCl 3 and NiCl 2 Mix the solution and stir it magnetically for 8 h at room temperature to make the Sargassum and FeCl 3 and NiCl 2 The mixed solution was fully contacted, and after the stirring was completed, it was dried in a drying oven at 105 °C for 24 h, and ground to obtain the SC@0.05Ni-Fe precursor;

[0032] Weigh 20 gSC@0.05Ni-Fe precursor and place it in a single temperature zone horizontal tube furnace, 2The gas flow rate was 500mL / min, and the mixture was heated to 800°C at a heating rate of 10°C / min and kept for 60 min. After natural cooling was completed, a biomass honeycomb semi-coke supported nickel / iron nanoparticle catal...

Embodiment 2

[0035] Sargassum raw material was washed with deionized water, dried at 105 °C for 48 h, crushed with a pulverizer, sieved to 40-80 mesh, and then dried for later use;

[0036] Weigh 27 g FeCl 3 ·6H 2 O and 23.7 gNiCl 2 ·6H 2 O solid was dissolved in 200 mL deionized water, weighed 20 g dry Sargassum powder and added FeCl 3 and NiCl 2 Mix the solution and stir it magnetically for 8 h at room temperature to make the Sargassum and FeCl 3 and NiCl 2 The mixed solution was fully contacted, and after the stirring was completed, it was dried in a drying oven at 105 °C for 24 h, and ground to obtain the SC@0.1Ni-Fe precursor;

[0037] Weigh 20 gSC@0.1Ni-Fe precursor and place it in a single temperature zone horizontal tube furnace, 2 The gas flow rate is 300-700mL / min, and the mixture is heated to 800-900 °C at a heating rate of 10-15 °C / min and kept for 60-90 min. After natural cooling is completed, a biomass honeycomb semi-coke loaded nickel / iron nano Particle catalyst SC@0...

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Abstract

The invention discloses a preparation method and application of a biomass honeycomb semi-coke-loaded nickel-iron nanoparticle catalyst. This method uses Sargassum as raw material and introduces FeCl 3 ·6H 2 O and NiCl 2 ·6H 2 O serves as a chemical activator and metal-donating substance. Sargassum is mixed with a certain proportion of FeCl. 3 ·6H 2 O and NiCl 2 ·6H 2 The O mixed solution is mixed and impregnated, and the carrier gas N is passed into the tube furnace. 2 Perform heat treatment to directly convert the Sargassum raw material into an excellent catalyst with high specific surface area, multiple active sites and special honeycomb structure, and apply it to the catalytic cracking process of biomass pyrolysis tar. The present invention uses waste seaweed biomass to treat biomass pyrolysis tar to achieve waste treatment, and the biomass growth cycle is short, the preparation process is simple, the cost is low, and the environmental pollution is small. The prepared Sargassum carbon-based honeycomb catalyst is in the production process. Stable and ideal results have been achieved in the catalytic cracking of material tar.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical industry for environmental protection and utilization of biomass solid waste, and specifically relates to a preparation method and application of a biomass honeycomb semi-coke loaded nickel-iron nano particle catalyst. Background technique [0002] In the production process of modern society, a large amount of waste biomass will be produced. Composting and incineration are mainly used for the treatment of waste biomass, but this method will generate a lot of smoke and waste energy. At present, various thermochemical technologies (such as pyrolysis and gasification) convert biomass into high-value products, but in this process, the key problem of tar is inevitably generated. At present, the treatment of tar includes two methods of physical cleaning and chemical conversion. Among them, the physical cleaning method is easy to cause environmental pollution and energy waste, and the chemic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/755B01J35/00B01J35/04B01J35/10B01J37/08B01J37/16C10B53/02C10B57/18C10B57/04
CPCB01J37/084B01J37/16B01J23/755C10B53/02C10B57/18C10B57/04B01J35/393B01J35/56B01J35/615Y02E50/10
Inventor 郭飞强梁爽贾小芃田倍乐董亦琛杜世麟钱琳
Owner CHINA UNIV OF MINING & TECH
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