Use of biomass for cracking residual carbon

A biomass and carbon residue technology, applied in the field of biomass pyrolysis residue carbon, can solve the problems of low utilization rate, environmental pollution, uneconomical and so on

Inactive Publication Date: 2006-04-26
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such treatment is not economical, the utilization rate is not high, and it will also cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The dried charcoal material (biomass pyrolysis residual carbon and biomass pyrolysis residual tar were mixed and molded at a weight ratio of 0.5:1) was heated at a rate of 4°C / min under the protection of nitrogen with a flow rate of 10mL / min g charcoal When the temperature reaches 650°C, turn on the water with a water flow rate of 1mL / min·g carbon, pass the generated water vapor into the sample, and activate the reaction for 6 hours. Finally, under the protection of nitrogen, the temperature is lowered to room temperature, the product is taken out, dried to constant weight, and pulverized to obtain powdered activated carbon with an iodine adsorption value of more than 750 mg / g and a methylene blue value of more than 150 mg / g.

Embodiment 2

[0014] The dried charcoal material (biomass pyrolysis residual carbon and biomass pyrolysis residual tar were mixed and molded at a weight ratio of 1:1) was heated at a rate of 4°C / min under the protection of nitrogen with a flow rate of 15mL / min g charcoal When the temperature reaches 750°C, turn on the water with a water flow rate of 0.05mL / min·g carbon, pass the generated water vapor into the sample, and activate the reaction for 4 hours. Finally, under the protection of nitrogen, the temperature is lowered to room temperature, the product is taken out, dried to constant weight, and pulverized to obtain powdered activated carbon with an iodine adsorption value of more than 750 mg / g and a methylene blue value of more than 150 mg / g.

Embodiment 3

[0016] The dried charcoal material (biomass pyrolysis residual carbon and biomass pyrolysis residual tar are mixed and shaped at a weight ratio of 1.5:1) is heated at a rate of 4°C / min under the protection of nitrogen with a flow rate of 20mL / min g charcoal When the temperature reaches 800°C, turn on the water with a water flow rate of 0.05mL / min·g carbon, pass the generated water vapor into the sample, and activate the reaction for 3 hours. Finally, under the protection of nitrogen, the temperature is lowered to room temperature, the product is taken out, dried to constant weight, and pulverized to obtain powdered activated carbon with an iodine adsorption value of more than 750 mg / g and a methylene blue value of more than 150 mg / g.

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Abstract

The invention discloses the use of the by-product in the process of preparing liquid fuel by pyrolysis of biomass—biomass pyrolysis residual charcoal: the biomass pyrolysis residual charcoal is used as the raw material for preparing activated carbon, and is produced by chemical or physical activation. Activated carbon for adsorption and decolorization properties. The significance of the invention lies in that resources are fully utilized (turning waste into wealth); at the same time, the purposes of reducing waste discharge and protecting the environment are realized.

Description

technical field [0001] The invention relates to a new application of residual carbon from biomass cracking, in particular, the application of residual carbon from biomass cracking in the preparation of activated carbon. technical background [0002] Biomass energy is a kind of clean and renewable energy. In today's energy crisis and increasingly serious environmental problems, the development and utilization of biomass energy has great strategic significance. For my country, a country with a large population, large agriculture, and large energy consumption, it is more practical to use biomass resources to improve energy conditions. How to make full use of biomass resources is the direction that people have been exploring and researching. In the experimental research of using fluidized bed technology to quickly crack biomass to produce liquid fuels, in addition to obtaining liquid phase products that can be directly used, a large amount of solid phase products——pyrolysis car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/08
Inventor 李庭琛陈健袁传敏颜涌捷
Owner EAST CHINA UNIV OF SCI & TECH
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