Method for producing high-purity hydrogen by electrolyzing water

• Main Author: FAN QINBAI
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to the technical field of hydrogen production, in particular to a method for producing high-purity hydrogen by electrolyzing water. Comprising the following steps: raw water is subjected to precipitation and adsorption purification and then flows into an electrolytic tank; adding a catalyst into the electrolytic tank for mixing; a cathode plate and an anode plate are respectively fixed in a cathode chamber and an anode chamber in an electrolytic tank; air outlet holes are formed in the cathode chamber and the anode chamber, the cathode chamber and the anode chamber are filled with alkaline electrolyte, an auxiliary electrode NiOOH pole piece is arranged in the cathode chamber, and an auxiliary electrode Ni (OH) 2 pole piece is arranged in the anode chamber; oxygen is collected at the air outlet of the cathode chamber, and hydrogen is collected at the air outlet of the anode chamber. According to the method for producing the high-purity hydrogen by electrolyzing the water, oxygen in the h