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Apparatus and method for hydrogen oxygen composite reaction

A reaction, hydrogen and oxygen technology, applied in the direction of chemical methods, reactors, emergency protection devices, etc. that make gaseous medium react with gaseous medium, can solve the problem of heat removal, etc., and achieve high operating flexibility, no hot spots, and convenient heat transfer Effect

Active Publication Date: 2006-11-22
SICHUAN INST OF MATERIALS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The hydrogen-oxygen compound reaction device of the present invention adopts a fluidized bed reactor with two independent gas distributors, which can not only solve the safety problem of the compound reaction of high-concentration hydrogen and oxygen, but also remove heat and efficiently convert hydrogen

Method used

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  • Apparatus and method for hydrogen oxygen composite reaction
  • Apparatus and method for hydrogen oxygen composite reaction
  • Apparatus and method for hydrogen oxygen composite reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] figure 1 It is a schematic diagram of the structure of the hydrogen-oxygen recombination reaction device provided by the present invention. The oxygen distributor 9 adopts a hood structure, the hydrogen distributor 10 adopts a double-layer ring pipe structure, the internal member 13 is a ridge-shaped internal member, and the catalyst dense phase zone 11 A built-in heat exchanger 12 is adopted, and a heater 17 is provided in the expansion section 15 of the reactor, and the heater 17 adopts an external heating method.

[0053] in such as figure 1 The reaction is carried out in the fluidized bed reactor shown for the hydrogen-oxygen recombination reaction. A catalyst with a platinum content of 200 mg / kg is used, its average particle size is 60 μm, and its loading capacity is 1000 g. First feed pure oxygen from the oxygen distributor 9 with a flow rate of 1Nm 3 / h, start the heating device to make the temperature of the catalyst zone higher than 100°C. Then, pure hydrog...

Embodiment 2

[0055] figure 2 It is a schematic diagram of the structure of the hydrogen-oxygen recombination reaction device provided by the present invention. The oxygen distributor 9 adopts a plate structure, the hydrogen distributor 10 adopts a double-layer ring pipe structure, the internal member 13 is a ridge-shaped internal member, and the catalyst dense phase zone 11 adopts Built-in heat exchanger, the reactor expansion section 15 is provided with a heater 17, and the heater 17 adopts an external heating method.

[0056] in such as figure 2 The reaction is carried out in the fluidized bed reactor shown for the hydrogen-oxygen recombination reaction. A catalyst with a platinum content of 300 mg / kg was used, its average particle size was 300 μm, and its loading capacity was 360 g. First feed pure oxygen from the oxygen distributor 9 with a flow rate of 1Nm 3 / h, start the heating device to make the temperature of the catalyst zone higher than 100°C. Then, pure hydrogen is gradua...

Embodiment 3

[0058] image 3 It is a schematic diagram of the structure of the device for the hydrogen-oxygen recombination reaction provided by the present invention. The oxygen distributor 9 adopts an annular structure, the hydrogen distributor 10 adopts a single-layer annular structure, and the internal member 13 is a grid-shaped internal member, and the catalyst is densely phased. The zone 11 adopts a built-in heat exchanger, and the reactor expansion section 15 is provided with a heater 17, and the heater 17 adopts an external heating method.

[0059] in such as image 3 The reaction is carried out in the fluidized bed reactor shown for the hydrogen-oxygen recombination reaction. A catalyst containing 200 mg / kg of palladium is used, the average particle size is 45 μm, and the loading amount is 1000 g. First feed pure oxygen from the oxygen distributor 9 with a flow rate of 1.5Nm 3 / h, start the heating device to make the temperature of the catalyst zone higher than 100°C. Then, pu...

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Abstract

The invention discloses a device and method for oxyhydrogen combination reaction. Said device comprises fluidized-bed reactor, the bottom of reactor is equipped with air containing oxygen inlet, said inlet is connected with hydrogen distributor, hydrogen distributor is fixed on tubular wall; a catalyst dense-flow area is equipped inside the reactor, heat exchanger is connected with said tubular wall; said dense-phase area is equipped with internal element connected with heat exchanger, the upper of said reactor is equipped with enlarged segment and gas-solid separation device connected with said enlarged segment; enlarged segment is equipped with heater; the tubular wall of reactor in axial direction is equipped with catalyst inlet, the bottom of reactor is equipped with devitalized catalyst outlet. The method essentially comprises controlling molecular ration between hydrogen and oxygen, controlling temperature, gas speed and air speed of catalyst in catalyst dense-phase area. The invention is characterized by strong elasticity of operation, convenient heat mobility, and high conversion rate for oxyhydrogen combination and need no inactive gas for dilution.

Description

technical field [0001] The invention belongs to the technical field of chemical process and equipment. In particular, it relates to a device and method for composite reaction of hydrogen and oxygen. Background technique [0002] During the production of heavy water and the operation of nuclear devices, a large amount of hydrogen and oxygen will be produced. Due to the explosive nature of hydrogen, such gases cannot be discharged directly and need to be chemically transformed. Dealing with the generated hydrogen and oxygen is extremely important to process safety. [0003] The key to treating the generated hydrogen and oxygen is to control the concentration of hydrogen and oxygen, and to make hydrogen and oxygen undergo compound reaction under catalytic conditions, so that the catalyst conversion reaction can be carried out in a relatively safe environment. The currently commonly used hydrogen-oxygen recombination method is to use a large amount of inert gas to reduce the h...

Claims

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Application Information

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IPC IPC(8): B01J12/00C01B5/00G21C9/06
CPCY02E30/30
Inventor 桑革骞伟中赖新春魏飞曹伟沈崇雨苏永军罗文华
Owner SICHUAN INST OF MATERIALS & TECH
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