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Hydrogen purification and transportation method

A technology of hydrogen and mixed gas, applied in chemical instruments and methods, separation methods, hydrogen separation, etc., can solve the problems of complex equipment, large investment, high energy consumption, etc., and achieve extended regeneration time, high safety, and simple system structure Effect

Inactive Publication Date: 2011-03-02
湖南双阳高科化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production method of syngas needs to be heated to a higher temperature, and there are technical problems of high energy consumption, complex equipment, and large investment

Method used

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  • Hydrogen purification and transportation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The hydrogen mixed gas containing water vapor obtained from the upstream sodium chlorate production process enters the chilled water cooler at a pressure of 15-25KPa, and the chilled water cooler is fed with cooling water at 3°C ​​to reduce the temperature of the mixed gas to 5 ℃, the cooled mixed gas enters the gas-liquid separator, the water vapor is condensed and separated from the mixed gas, and the condensed water is discharged into the water seal. At the lowest point of the gas transportation pipelines, a condensed water discharge pipe is installed, and the pipes The condensed water in the road is discharged into the water seal to further reduce the moisture content in the gas; the mixed gas after cooling and dewatering by the chilled water cooler enters the activated carbon adsorption device to further absorb moisture and impurities; after the above treatment, it enters the dry gas It is stored in a cabinet. There are water seals on the inlet and outlet pipes of t...

Embodiment 2

[0018] The hydrogen mixed gas containing water vapor obtained from the upstream sodium chlorate production process enters the chilled water cooler at a pressure of 15-25KPa, and the chilled water cooler is fed with cooling water at 5°C to reduce the temperature of the mixed gas to 9 ℃, the cooled mixed gas enters the gas-liquid separator, the water vapor is condensed and separated from the mixed gas, and the condensed water is discharged into the water seal. At the lowest point of the gas transportation pipelines, a condensed water discharge pipe is installed, and the pipes The condensed water in the road is discharged into the water seal to further reduce the moisture content in the gas; the mixed gas after cooling and dewatering by the chilled water cooler enters the activated carbon adsorption device to further absorb moisture and impurities; after the above treatment, it enters the dry gas It is stored in a cabinet. There are water seals on the inlet and outlet pipes of the...

Embodiment 3

[0020] The hydrogen mixed gas containing water vapor obtained from the upstream sodium chlorate production process enters the chilled water cooler at a pressure of 15-25KPa, and the chilled water cooler is fed with cooling water at 4°C to reduce the temperature of the mixed gas to 7 ℃, the cooled mixed gas enters the gas-liquid separator, the water vapor is condensed and separated from the mixed gas, and the condensed water is discharged into the water seal. At the lowest point of the gas transportation pipelines, a condensed water discharge pipe is installed, and the pipes The condensed water in the road is discharged into the water seal to further reduce the moisture content in the gas; the mixed gas after cooling and dewatering by the chilled water cooler enters the activated carbon adsorption device to further absorb moisture and impurities; after the above treatment, it enters the dry gas It is stored in a cabinet. There are water seals on the inlet and outlet pipes of the...

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Abstract

The invention relates to a hydrogen purification and transportation method which comprises the following steps: 1. a gas mixture containing water vapor and hydrogen from the upstream industrial production of sodium chlorate firstly enters a cooler, the gas mixture is cooled, the cooled synthetic gas enters a gas-liquid separator, the condensed water vapor is separated from the gas mixture, and the condensation water is discharged into a water seal; 2. the dewatered gas mixture obtained in step 1 enters an active carbon adsorption plant; and 3. the gas processed in step 2 is sent into a dry gas-holder to be stored, and the gas in the dry gas-holder is compressed by a compressor and then sent to the outside.

Description

technical field [0001] The invention relates to the technical field of industrial hydrogen production, in particular to a method for purifying and transporting hydrogen, a by-product of sodium chlorate production. Background technique [0002] The development of hydrogen peroxide production methods in my country has roughly experienced three development stages: electrolysis, nickel catalyst stirred tank hydrogenation process anthraquinone method and palladium catalyst fixed bed hydrogenation process anthraquinone method. The anthraquinone method of the hydrogenation process is the main production method. The production of hydrogen peroxide by the anthraquinone method is based on 2-ethylanthraquinone and tetrahydro-2-ethylanthraquinone as carriers, heavy aromatic hydrocarbons and trioctyl phosphate as mixed solvents, and is formulated as a working solution. The working liquid enters the fixed bed with palladium catalyst together with hydrogen, and undergoes hydrogenation reac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/56B01D53/02B01D5/00F17B1/24
Inventor 付志成郑红伟杨云强
Owner 湖南双阳高科化工有限公司
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