Device for preparing clean liquid for clean acetylene gas in chlor-alkali system and method thereof

An acetylene gas, clean technology, applied in the direction of absorption purification/separation, organic chemistry, etc., can solve the problems of high cost of liquid caustic soda and chlorine gas, weak market of concentrated sodium hypochlorite solution, high sales pressure and environmental protection pressure, etc., to achieve good utilization and reduce Costs, the effect of reducing sales pressure

Inactive Publication Date: 2013-09-04
INNER MONGOLIA WUHAI CHEM IND
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  • Abstract
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Problems solved by technology

Sodium hypochlorite acetylene gas cleaner is prepared from 5% dilute lye, chlorine gas and water through Venturi, so the cost of liquid alkali and chlorine gas is relatively high
At present, the market of

Method used

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  • Device for preparing clean liquid for clean acetylene gas in chlor-alkali system and method thereof

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[0015] The present invention will be described in detail below with reference to the accompanying drawings.

[0016] Such as figure 1 As shown, a chlor-alkali system is used to prepare a cleaning solution for cleaning acetylene gas, which includes a concentrated sodium hypochlorite storage tank 1, a concentrated sodium hypochlorite buffer tank 2, a diluted sodium hypochlorite storage tank 3, a diluted sodium hypochlorite high tank 4, and Venturi 5. Lift pumps are installed between the concentrated sodium hypochlorite storage tank 1, the concentrated sodium hypochlorite buffer tank 2, the diluted sodium hypochlorite storage tank 3 and the diluted sodium hypochlorite high-level tank 4. A flow meter is installed between the dilute sodium hypochlorite storage tank 3 and the venturi 5.

[0017] A method for preparing a cleaning solution for cleaning acetylene gas in a chlor-alkali system, which comprises the following steps:

[0018] a. The concentrated sodium hypochlorite solution pro...

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Abstract

The invention discloses a device for preparing a clean liquid for clean acetylene gas in a chlor-alkali system and a method thereof. The device comprises a concentrated sodium hypochlorite storage tank, a concentrated sodium hypochlorite buffer tank, a diluted sodium hypochlorite storage tank, a diluted sodium hypochlorite head tank and a Venturi connected sequentially through a pipeline. The invention belongs to a technical improving process of recycling acetylene from concentrated sodium hypochlorite. Compared with the prior art, the method disclosed by the invention has the advantages that 1, concentrated sodium hypochlorite liquor is used to prepare a sodium hypochlorite solution, so that the byproduct is better used; 2, the use levels of liquid caustic soda and chlorine are reduced during production of an acetylene gas clearing agent, so that the expense generated is lowered; and 3, the selling pressure of the concentrated sodium hypochlorite is reduced.

Description

technical field [0001] The invention belongs to the technological transformation process of reusing acetylene by concentrated sodium hypochlorite, and in particular relates to equipment and a method for preparing cleaning liquid for cleaning acetylene gas in a chlor-alkali system. Background technique [0002] At present, calcium carbide acetylene process PVC manufacturers mostly use sodium hypochlorite solution with an available chlorine content of 0.085% to 0.12% and a pH of 7 to 8 as a detergent for acetylene gas. Sodium hypochlorite acetylene gas cleaner is made up of 5% dilute lye, chlorine gas and water through Venturi, so the cost of liquid alkali and chlorine gas is relatively large. At present, the market for concentrated sodium hypochlorite solution produced by the caustic soda system of chlor-alkali chemical industry is weak, and the sales pressure and environmental protection pressure are relatively high. If it is possible to provide a process for alleviating th...

Claims

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Application Information

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IPC IPC(8): C07C11/24C07C7/11
Inventor 殷付中杜建忠郝海兵王军刘江飞牛世军周鑫张艳龙王敏娜
Owner INNER MONGOLIA WUHAI CHEM IND
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