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Method for increasing yield of biomass-based colloidal carbon

A production method, biomass technology, applied in the preparation/purification of carbon, etc.

Inactive Publication Date: 2013-09-04
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of phenolic compounds in the process of dehydration polymerization of sugar compounds to form colloidal carbon to increase its yield has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Combine rice husk with 72% H 2 SO 4 Mix according to a solid-liquid ratio of 1:10 (Kg / L), place in a 50°C water bath for 10 minutes, adjust the acid concentration to 40%, and filter to obtain a sugar-acid solution;

[0013] (2) Place the sugar-acid solution in a 95°C water bath for carbonization reaction for 6 hours, filter, wash with water, and dry to obtain colloidal carbon (mix the sugar-acid solution with monophenol at a mass ratio of rice husk / phenol of 5:1, Place in a 95°C water bath for carbonization reaction for 6 hours, filter, wash with water, and o C and dried to obtain colloidal carbon).

[0014] (3) The yield of colloidal carbon without phenol was 6.82%, and the yield of colloidal carbon with phenol was 17.35%,

[0015] The yield of colloidal carbon increased by 10.53%.

Embodiment 2

[0017] Change phenol to resorcinol, other conditions are as embodiment 1, productive rate is 19.8%, and the productive rate of colloidal carbon has improved 12.98%.

Embodiment 3

[0019] Change phenol to be phloroglucinol, and other conditions are as embodiment 1, productive rate is 18.3%, and the productive rate of colloidal carbon has improved 11.48%.

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PUM

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Abstract

The invention discloses a method for increasing a yield of biomass-based colloidal carbon, and particularly relates to a method for increasing a yield of colloidal carbon by hydrolyzing a biomass with concentrated acid, condensing and carbonizing a sugar acid solution in situ, and introducing a phenolic compound. The method comprises the following specific steps that the biomass is hydrolyzed by inorganic acid with certain concentration, and filtered to form the sugar acid solution and filter residues; the concentration of the sugar acid solution is adjusted; and colloidal carbon is condensed, carbonized and prepared under the condition that the phenolic compound is added in sugar acid solution dehydration and polymerization processes. The method is simple and easy to realize.

Description

technical field [0001] The present invention relates to a technique of using different phenolic compounds to affect the yield of biomass-based colloidal carbon. Background technique [0002] With the rapid development of industry, the growth of population and the improvement of people's living standards, energy shortages and environmental pollution have become global problems. Finding alternatives to fossil resources and pursuing sustainable development, environmental protection and circular economy have become the priorities of many countries. important development strategy. Research on the production of multifunctional inorganic nanomaterials from waste biomass shows a continuous growth trend. Due to the advantages of abundant resources, wide sources, renewable and biodegradable, biomass materials have been widely used in the fields of synthetic plastics, fibers, functional materials, composite materials and so on. The preparation of multifunctional nano-carbon materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02C01B32/05
Inventor 郭玉鹏赵凯邹博丁丽丽顾小雪王子忱
Owner JILIN UNIV