Filter pressing type water electrolysis hydrogen production device and method

Abstract

The invention discloses a filter pressing type water electrolysis hydrogen production device and method, and relates to the technical field of water electrolysis hydrogen production. The device comprises an electrolytic bath; a plurality of diaphragms are arranged in the electrolytic bath in parallel; the electrolytic tank is divided into a plurality of independent electrolytic cavities through diaphragms; an anode electrode and a cathode electrode are respectively arranged in two electrolytic cavities at two ends of the electrolytic bath; a partition plate assembly is arranged between any two diaphragms; one side, away from the anode electrode, of the partition plate assembly is an inert electrode, and one side, close to the anode electrode, of the partition plate assembly is an alkaline electrolysis water electrode; anode electrolysis areas are formed between the diaphragm and the inert electrode and between the diaphragm and the anode electrode; and cathode electrolysis areas are formed between the diaphragm and the alkaline electrolysis water electrode and between the diaphragm and the cathode electrode. Through the arrangement of the anolyte storage tank, the diaphragm and the like, the two-step water electrolysis hydrogen production and oxygen production space separation and time synchronization are realized, the capacity of a redox buffer medium can be improved, and the water electrolysis hydrogen production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production by electrolysis of water, in particular to a pressure filter type electrolysis water hydrogen production device and method. Background technique [0002] Hydrogen energy is recognized as clean energy, which has the advantages of light density, good thermal conductivity, and good combustion performance. Hydrogen energy is a secondary energy source, which is produced by using other energy sources in a certain way, unlike coal, oil, and natural gas, which can be directly mined. Commonly used industrial hydrogen production methods mainly include hydrogen production by steam reforming of natural gas, hydrogen production by steam reforming of methanol, hydrogen production by electrolysis of water, and hydrogen production by oxidative reforming of hydrocarbons. [0003] The operation of electrolyzing water to produce hydrogen is relatively simple, the technology is relatively mature, and the...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a pressure filter type electrolyzed water hydrogen production device and method, through the setting of the anolyte storage tank, diaphragm, etc., to realize the two-step hydrogen production in the actual electrolysis process, that is, only produce hydrogen in the electrolysis process , does not produce oxygen, avoiding the existing problems that easily lead to the mixing of hydrogen and oxygen

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