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Ionic membrane method hydrochloric acid electrolysis device

A technology of ion membrane electrolyzer and ion membrane method, which is applied in the field of ion membrane method hydrochloric acid electrolysis device, and can solve the problems of low purity of chlorine gas and high energy consumption of electrolysis

Pending Publication Date: 2021-09-14
BLUESTAR BEIJING CHEM MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned prior art has the defects of high electrolysis energy consumption and low chlorine purity in the electrolysis process.

Method used

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  • Ionic membrane method hydrochloric acid electrolysis device
  • Ionic membrane method hydrochloric acid electrolysis device
  • Ionic membrane method hydrochloric acid electrolysis device

Examples

Experimental program
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Effect test

Embodiment 1

[0042] In this embodiment, the hydrochloric acid of the anolyte enters the tank at a temperature of 55°C and a concentration of 13%-15% after heat exchange; the hydrochloric acid of the catholyte enters the tank at a temperature of 50°C and a concentration of 1%-8% after heat exchange; the operating current density It is 4-5KA / ㎡. After 90 days of continuous operation, the following process data were obtained in Table 1:

[0043] Table 1

[0044]

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Abstract

The invention discloses an ionic membrane method hydrochloric acid electrolysis device, which comprises a plurality of bipolar ionic membrane electrolytic cell units arranged in parallel, a cathode circulating system and an anode circulating system, wherein each bipolar ionic membrane electrolytic cell unit comprises a cathode chamber (1) and an anode chamber (2), a sulfonic acid type ion exchange membrane (3) is arranged between the cathode chamber (1) and the anode chamber (2), a cathode (4) in the cathode chamber and an anode (5) in the anode chamber are respectively made of metal materials, the cathode circulating system comprises a cathode chamber liquid distribution pipe (6) located at the lower portion in the cathode chamber (1), a plurality of liquid outlet holes are formed in the pipe wall of the cathode chamber liquid distribution pipe (6), and the liquid inlet of the cathode chamber liquid distribution pipe (6) is communicated with the liquid outlet of a cathode chamber liquid supplementing pipe (7). The invention aims to provide an ionic membrane method hydrochloric acid electrolysis device, which is low in energy consumption and good in hydrochloric acid corrosion resistance, and realizes stable and efficient resource utilization of hydrochloric acid on the premise of ensuring high-purity quality of chlorine and hydrogen.

Description

technical field [0001] The invention relates to the field of hydrochloric acid electrolysis, in particular to an ion membrane method hydrochloric acid electrolysis device for resource utilization of hydrochloric acid. Background technique [0002] Chlorine gas is an important chemical raw material, and the products produced with chlorine gas as raw material account for a relatively large proportion of chemical products. During the use of chlorine, a large amount of by-product - hydrochloric acid is also produced while obtaining chlorine products. Due to the strong corrosiveness of hydrochloric acid, if it is not handled properly, it will not only cause waste of resources, reduce the economic benefits of enterprises, but also have a serious impact on the environment. According to statistics, China's annual by-product hydrochloric acid is about 20 million tons. The electrolysis method is used to treat the by-product hydrochloric acid harmlessly with electrolysis equipment, wh...

Claims

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Application Information

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IPC IPC(8): C25B1/26C25B9/70C25B15/027C25B15/029C25B15/08C25B1/02
CPCC25B1/26C25B9/70C25B9/13C25B15/027C25B15/029C25B15/083C25B1/02
Inventor 杨航李佑平李想乔霄峰司继松张良虎李海要李爽王小磊单明月石庚斯
Owner BLUESTAR BEIJING CHEM MACHINERY
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