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Method for degrading coal by using Fenton reaction

A technology of reaction and coal sample, applied in the field of degrading coal by Fenton reaction

Active Publication Date: 2013-07-31
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

By searching the prior art at home and abroad, no report of the same or similar technology as the present invention was found

Method used

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  • Method for degrading coal by using Fenton reaction
  • Method for degrading coal by using Fenton reaction
  • Method for degrading coal by using Fenton reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Get 0.5g coal powder, add 0.1mol / L NaOH solution and soak for 1d, filter the coal sample after soaking, adopt HCl to adjust the pH value of the filtrate between 1-2 and let it stand for 1h. Filter the solution after acid extraction with a filter membrane, wash until the filtrate is colorless and transparent, and weigh the weight of the filtrate after the filter membrane is dried.

Embodiment 2

[0031] Embodiment 2: change the sodium hydroxide concentration into 0.2mol / L, and other concrete experimental steps are with embodiment 1.

Embodiment 3

[0032] Embodiment 3: change the sodium hydroxide concentration into 0.5mol / L, and other concrete experimental steps are with embodiment 1.

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Abstract

The invention discloses a method for degrading coal by using a Fenton reaction. The method comprises the following specific steps of taking a proper amount of a coal sample; adding a FeCl2 solution to immerse the coal sample, so as to make Fe<2+> completely absorbed by the coal sample; adding a certain amount of H2O2 to start the reaction at a temperature of 35 DEG C; adding a certain amount of a NaOH solution to carry out alkaline extraction; placing a coal sample solution in a beaker; adjusting the pH value of the coal sample solution to 1-2 by using HCl; filtering the coal sample solution; and drying a material obtained by the filtration and weighing the dried material. In an optimized experimental condition, the content of relatively small molecules that can be utilized subsequently can be increased obviously.

Description

technical field [0001] A method for degrading coal by using the Fenton reaction, which is characterized in that the three-dimensional network macromolecular structure of coal is destroyed under mild conditions, and it is converted into smaller molecules that can be directly used by microorganisms, thereby improving the conversion of coal degradation into gas Rate. belongs to the field of energy. Background technique [0002] Coal is a complex macromolecular solid mixture formed by ancient plants in different natural environments through a series of biological, chemical and physical chemical changes. A complex three-dimensional network structure formed by cross-linking such as dipole interactions and covalent bonds, and some small molecules may be embedded in the three-dimensional network main structure. Coal biogas generation is a technology that uses enzymes or microorganisms to convert coal into gaseous fuels such as methane. It is a new attempt and effort in the compreh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07G99/00
Inventor 武俐邰超赵同谦李怀珍金毅宋党育梁惠珍徐垒吴桂侠张少栋
Owner HENAN POLYTECHNIC UNIV
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