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Catalyst for catalytic oxidation of gaseous hydrogen tritide, and preparation method and application of catalyst

A catalytic oxidation and catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of spontaneous combustion, hidden safety hazards, high catalyst costs, etc., to achieve preparation Simple process, long life and high activity

Inactive Publication Date: 2014-06-04
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem with the above three methods is that the cost of the catalyst is too high, and since the organic carrier is used, spontaneous combustion may occur at a relatively high ambient temperature, which has certain safety hazards

Method used

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  • Catalyst for catalytic oxidation of gaseous hydrogen tritide, and preparation method and application of catalyst
  • Catalyst for catalytic oxidation of gaseous hydrogen tritide, and preparation method and application of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Dissolve commercially available 10g of aluminum nitrate in 20ml of deionized water, stir for 30min as solution A; mix 7.5g of sodium hydroxide and 50ml of deionized water as solution B; add solution B dropwise to solution A under vigorous stirring, and keep at room temperature Stir for 2 hours, let stand and age for 48 hours, then suction filter, wash, dry, and then move to a muffle furnace for roasting. The specific calcination process is as follows: start heating at 50°C, program temperature rise at a heating rate of 2.5°C / min, and maintain at 500°C for 4 hours to obtain alumina. After removal, the catalyst was ground to ensure that the catalyst was in powder form.

[0028] Weigh 10g of alumina powder prepared by the above method and pour it into 200ml of toluene solution, add 5ml of n-octyltriethoxysilane (OTES), (Sinopharm Reagent, product number XW29437511, CAS: 2943-75-1, molecular formula :C1 4 h 32 o 3 Si, molecular weight: 276.4876, relative density: 0.879g...

Embodiment 2

[0031] Prepare 2%Pt / Al by the same method of embodiment 1 2 o 3 Catalyst, the feeding ratio is the same.

Embodiment 3

[0033] Prepare 3%Pt / Al by the same method of embodiment 1 2 o 3 Catalyst, the feeding ratio is the same.

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Abstract

The invention discloses a catalyst for the catalytic oxidation of gaseous hydrogen tritide. The catalyst is obtained mainly by supporting platinum oxide by adopting the oxide of transition metal as a carrier, wherein the transition metal is Al, Ti, Mn, Co, Fe, Cu and Ni. Air serving as the catalyst is carried into a reactor to convert elementary tritium in the hydrogen tritide into water. The catalyst is subjected to hydrophobic modification, and is high in activity, long in service life and particularly applied to the catalytic oxidation recovery of tritium in the hydrogen tritide.

Description

technical field [0001] The invention belongs to the technical field of hydrogen-tritium catalytic oxidation and environmental protection, and in particular relates to a platinum oxide / transition metal oxide catalyst for catalytic oxidation recovery of gaseous hydrogen tritium and a preparation method thereof, and provides a catalyst for complete catalytic oxidation recovery The method of tritium element contained in hydrogen tritium in the environment. Background technique [0002] Tritium is a very important national defense resource, and the recovery of tritium has important national defense significance and economic value. Because the catalytic oxidation of hydrogen tritium produces a large amount of water, if a hydrophilic carrier is used, the water in the environment will be adsorbed on the surface of the catalyst, greatly reducing the activity of the catalyst; at the same time, because the hydrophilic catalyst absorbs a large amount of water, it cannot be recovered Tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01J23/656B01J23/89C01B5/02
Inventor 钦政王幸宜刘卫钱渊包广粮吴勐
Owner EAST CHINA UNIV OF SCI & TECH
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