Titanium nitride-loaded active carbon adsorbent and preparation method thereof

A technology of activated carbon adsorption and activated carbon, which is applied in the direction of chemical instruments and methods, and other chemical processes, to achieve the effects of mild preparation conditions, simple operation, and easy promotion of industrialization and marketization

Inactive Publication Date: 2012-10-17
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no high-temperature calcination loaded TiO 2 A report on the preparation of activated carbon adsorbents loaded with TiN

Method used

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  • Titanium nitride-loaded active carbon adsorbent and preparation method thereof
  • Titanium nitride-loaded active carbon adsorbent and preparation method thereof
  • Titanium nitride-loaded active carbon adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Screen the commercial activated carbon AC-1 before use, sieve through 10-20 meshes, place the obtained activated carbon in a beaker filled with deionized water twice the volume of activated carbon, and place it in an aqueous solution In a digitally controlled ultrasonic cleaner, ultrasonicate at room temperature for 1 hour to remove powder and oily substances in the activated carbon, wash with deionized water, filter with suction, and dry;

[0027] (2) Mix 33.7ml deionized water, 6.5ml concentrated HCl solution and 9.8ml TiCl 3 The solution was sequentially added to the polytetrafluoroethylene liner of the 100ml stainless steel reaction kettle, and configured as 0.5mol / L TiCl 3 - HCl solution;

[0028] (3) Add 20g of the granular activated carbon obtained in step (1) to the solution prepared in step (2), tighten the stainless steel reaction kettle, and place it in an electric heating constant temperature blast drying oven controlled by program temperature for hydro...

Embodiment 2

[0032] (1) Screen commercial activated carbon AC-2 before use, sieve through 10-20 meshes, place the obtained activated carbon in a beaker filled with deionized water twice the volume of activated carbon, and place it in a In a digitally controlled ultrasonic cleaner, ultrasonicate at room temperature for 1.5 hours to remove powder and oily substances in activated carbon, wash with deionized water, filter with suction, and dry;

[0033] (2) Mix 33.7ml deionized water, 6.5ml concentrated HCl solution and 9.8ml TiCl 3 The solution was sequentially added to the polytetrafluoroethylene liner of the 100ml stainless steel reaction kettle, and configured as 0.5mol / L TiCl 3 - HCl solution;

[0034] (3) Add 20g of granular activated carbon obtained in step (1) to the solution prepared in step (2), tighten the stainless steel reaction kettle, place it in an electric constant temperature blast drying oven for hydrothermal treatment, and treat it at 160°C for 24h. The activated carbon a...

Embodiment 3

[0037] (1) Screen the commercial activated carbon AC-3 before use, sieve through 10-20 meshes, place the obtained activated carbon in a beaker filled with deionized water twice the volume of activated carbon, and place it in an aqueous solution In a digitally controlled ultrasonic cleaner, ultrasonicate at room temperature for 2 hours to remove powder and oily substances in the activated carbon, wash with deionized water, suction filter, and dry;

[0038] (2) Mix 33.7ml deionized water, 6.5ml concentrated HCl solution and 9.8ml TiCl 3 The solution was sequentially added to the polytetrafluoroethylene liner of the 100ml stainless steel reaction kettle, and configured as 0.5mol / L TiCl 3 - HCl solution;

[0039] (3) Add 20g of granular activated carbon obtained in step (1) to the solution prepared in step (2), tighten the stainless steel reaction kettle, place it in an electric constant temperature blast drying oven for hydrothermal treatment, and treat it at 160°C for 24h. The a...

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Abstract

The invention provides a titanium nitride-loaded active carbon adsorbent and a preparation method thereof, belonging to the technical fields of adsorbents. Titanium nitride is loaded on active carbon to form combined particles. The preparation method comprises the following steps: pretreating and drying active carbon; preparing a TiCl3-HCl solution from TiCl3 and transferring the solution to a polytetrafluoroethylene inner tank of a stainless steel reaction kettle; adding active carbon into the inner tank and carrying out hydro-thermal treatment; rinsing and drying active carbon obtained after hydro-thermal treatment so as to obtain the titanium nitride-loaded active carbon adsorbent; and roasting the adsorbent in a porcelain boat under nitrogen protection and allowing temperature of the adsorbent to drop to room temperature so as to obtain a final product of the titanium nitride-loaded active carbon adsorbent. The preparation method is simple and is convenient to operate; and the prepared load type adsorbent is granular, which enables adsorption capacity and penetration time of the adsorbent to be enhanced.

Description

technical field [0001] The invention relates to an activated carbon and a preparation method, in particular to an activated carbon adsorbent loaded with titanium nitride and a preparation method, and belongs to the technical field of adsorbents. Background technique [0002] According to statistics, my country has 18 billion m 3 The above pure methane is mixed into the mine air flow and evacuated through the exhaust air, which is equivalent to more than 36 million tons of coal being wasted in vain. Not only that, the greenhouse effect of methane is CO 2 21 times that of CO 2 Seven times that of methane, the damage to the atmospheric environment caused by the discharge of methane into the atmosphere has become a major environmental problem faced by the whole world. Due to the large flow rate, low concentration, low enrichment efficiency, potential safety hazards, and difficulties in comprehensive utilization, the development and application of gas enrichment technology in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30
Inventor 李坚马东祝郭连杰王洪明梁文俊何洪
Owner BEIJING UNIV OF TECH
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