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Porous graphite carbon composite material as well as preparation method and application thereof

A technology of porous graphite carbon and composite materials, which is applied in the field of porous graphite carbon composite materials and the preparation of porous graphite carbon composite materials, can solve the problems of inability to balance strength and carbon content, low overall performance, etc., and achieve good mechanical properties and raw materials. The effect of a wide range of sources and good heat resistance

Inactive Publication Date: 2015-06-03
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a porous graphite carbon composite material, which solves the problem that the overall performance of the existing activated carbon catalyst support material cannot be balanced due to the inability to balance the strength and carbon content.

Method used

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  • Porous graphite carbon composite material as well as preparation method and application thereof
  • Porous graphite carbon composite material as well as preparation method and application thereof
  • Porous graphite carbon composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The porous graphite carbon composite material of the present embodiment is made of the following raw materials in parts by weight: 75 parts of graphite, 13 parts of polystyrene cation exchange resin, 12 parts of pitch coke, and 100 parts of polyvinyl alcohol solution with a mass concentration of 15%. , 30 parts of coal tar pitch.

[0033] The preparation method of the porous graphite carbon composite material of the present embodiment, the flow chart is as follows figure 2 shown, including the following steps:

[0034] 1) Preprocessing:

[0035] Soak graphite powder in nitric acid with a concentration of 1mol / L for 0.5h, ultrasonically wash for 10min, filter and wash with water until neutral, dry in an oven at 110°C for 1h, and set aside;

[0036] Soak the polystyrene cation exchange resin in 1mol / L hydrochloric acid for 10 hours, wash it with water until neutral, dry it at 80°C, and set it aside;

[0037] Grind the pitch coke into powder and sieve through a 200-mes...

Embodiment 2

[0047] The porous graphite carbon composite material of the present embodiment is made of the following raw materials in parts by weight: 70 parts of graphite, 8 parts of phenolic resin, 10 parts of pitch coke, 120 parts of polyvinyl alcohol solution with a mass concentration of 10%, 20 parts of coal tar pitch share.

[0048] The preparation method of the porous graphite carbon composite material of the present embodiment comprises the following steps:

[0049] 1) Preprocessing:

[0050] Soak graphite powder in nitric acid with a concentration of 1mol / L for 0.5h, ultrasonically wash for 10min, filter and wash with water until neutral, dry in an oven at 110°C for 1h, and set aside;

[0051] Grind the pitch coke into powder and sieve through a 200-mesh sieve, then take the fine powder for later use;

[0052] 2) Take 70 parts by weight of graphite powder, 8 parts by weight of phenolic resin, and 10 parts by weight of pitch coke powder, mix and stir evenly, add 120 parts by weig...

experiment example

[0060] In this experimental example, the properties of the porous graphite carbon composite material obtained in Examples 1 and 2 were tested, and the results are shown in Table 1. Among them, the comparative example is activated carbon material (commercially available).

[0061] Table 1 Performance test results of the porous graphite carbon composite material obtained in Examples 1-2

[0062] project

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Abstract

The invention discloses a porous graphite carbon composite material as well as a preparation method and application thereof. The porous graphite carbon composite material is prepared from the following raw materials in parts by weight: 70-80 parts of graphite, 8-15 parts of thermosetting resin, 10-12 parts of pitch cokes, 100-120 parts of polyvinyl alcohol solution and 20-35 parts of coal pitch. The porous graphite carbon composite material disclosed by the invention has the advantages that the porous graphite carbon composite material is formed by taking graphite as a main component, thermosetting resin as a main carbon source of a pore forming model and activated carbon as well as pitch cokes, coal pitch and other raw materials as auxiliary materials, and is high in carbon content and relatively high in specific surface area and adsorption porosity; compared with activated carbon, the porous graphite carbon composite material has better mechanical performance; due to the high temperature resistance of the graphite component, the porous graphite carbon composite material has better heat resistance, thermal shock resistance and impact resistance as comparison with activated carbon; the porous graphite carbon composite material can be made into a honeycomb-shaped graphite carbon composite material through extrusion forming, and is used as a favorable industrial catalyst carrier material.

Description

technical field [0001] The invention belongs to the technical field of graphite carbon materials, and in particular relates to a porous graphite carbon composite material, and at the same time relates to a preparation method of the porous graphite carbon composite material and the application of the porous graphite carbon composite material as an industrial catalyst carrier material. Background technique [0002] In contemporary industrial production, more and more types of solid catalysts are used, and the types of supports on which these catalysts are attached are also various. Among many catalyst supports, carbon materials occupy an important part. Due to the good surface adsorption performance of carbon materials and the relatively active valence electrons of atoms, various carbon allotropic materials such as activated carbon, carbon nanotubes, and carbon fibers are used as catalyst carriers. Among them, activated carbon is widely used in technical fields such as cataly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J35/10B01J21/18B01J23/22B01D53/56B01D53/72B01D53/86
Inventor 陈寒玉裴晓红王宁余宏伟张岩
Owner HENAN UNIV OF URBAN CONSTR
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