Preparation method and novel using methods of carbon monolith binder

Technology of a binder and a new method, applied in the field of biomass binders for prepared carbon

Inactive Publication Date: 2012-09-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention uses biomass waste: corn cob, rice husk, oak wood, rubber wood, etc. as raw materials to prepare carbon binder, and proposes two methods of using the binder, which have not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: pyrolyze corncobs at 500°C for 2 hours, collect and condense the pyrolysis gas to obtain corncob pyrolysis oil, and dehydrate the pyrolysis oil at 120°C for 1 hour to obtain a binder. The binder and the carbon powder are mixed at a mass ratio of 1:1, and extruded at 0.5 MPa to prepare a shaped carbon with a drop frequency of 1.5 meters>10.

Embodiment 2

[0013] Example 2: Pyrolyze corncobs at 500°C for 2 hours, remove the pyrolysis gas generated in the first 20 minutes, then use carbon powder to absorb the pyrolysis gas, and extrude the carbon powder at room temperature and 0.5Mpa to prepare 1.5-meter drop times > 8 type charcoal.

Embodiment 3

[0014] Embodiment 3: Change the raw material to be rice husk, and other conditions are as in embodiment 1, and obtain binder. The molded charcoal prepared by this binder has a drop frequency of >5 at 1.5 meters.

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PUM

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Abstract

The invention discloses a preparation method and two novel using methods of a carbon monolith binder. The preparation method comprises the steps of: preparing and using biomass pyrolysis oil as a novel binder in a powdered carbon forming process from biomasses such as corn cob, rice husk, Chinese oak, rubber wood timber and the like by means of pyrolyzation and condensation. The invention also provides two using methods. One using method is mixing the binder (with moisture removed) with powdered carbon at the mass ratio of 1:1 to 1:3 at the temperature of 50-100 DEG C and then performing extrusion forming, and the other using method is directly absorbing pyrolysis gas generated by the biomass in a pyrolysis process by using the powdered carbon and then directly performing extrusion forming. The obtained carbon monolith is not broken after falling off for 10 times from the height of 1.5m, and a sample is not scattered by stirring after being combusted. The invention relates to the preparation method and the two using methods of the novel binder in the powdered carbon forming process.

Description

technical field [0001] The invention belongs to a binder and its application, in particular to a biomass binder used for preparing carbon and its application method. Background technique [0002] my country's biomass resources are very rich, and the comprehensive utilization of biomass waste is an important research field. A large number of residues such as rice husks, corncobs, truncated heads, branches, sawdust, and wood bran are produced in the process of agricultural and forestry processing. These wastes have various shapes, which brings inconvenience to further processing and utilization. The traditional combustion method will seriously pollute the environment. How to effectively and rationally utilize these renewable resources is of great significance. [0003] Biochar is widely used in many fields such as food, pharmaceutical, chemical industry, metallurgy, national defense, agriculture and environmental protection. Making carbon powder into molded carbon can reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/14
CPCY02E50/30
Inventor 郭玉鹏丁丽丽李艳南王子忱
Owner JILIN UNIV
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