Help: Hello everyone, what are the current types of hydrogen production processes and equipment? What is the difference in hydrogen production costs among them?
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Help: Hello everyone. What are the current types of hydrogen production processes and equipment, and what are the differences in hydrogen production costs among them? Are there any other methods for exhaust gas treatment besides incinerators?
There are many approaches to industrial hydrogen production, which can be mainly classified into the following categories: (1) Hydrogen production from fossil fuels: hydrogen production from natural gas, coal, etc. (2) Hydrogen production using hydrogen-rich gas: hydrogen production from waste gases generated in ammonia synthesis, hydrogen production by recovering hydrogen-rich gas in refineries, hydrogen production by recovering by-product hydrogen in chlor-alkali plants, and the recovery and utilization of hydrogen from coke oven gas, etc. (3) Hydrogen production from methanol: hydrogen production via methanol decomposition, hydrogen production via methanol steam reforming, hydrogen production via methanol partial oxidation, and hydrogen production via methanol conversion. (4) Hydrogen production by hydrolysis: water electrolysis, alkaline electrolysis, polymer electrolyte membrane electrolysis, high-temperature electrolysis, photoelectrolysis, biophotolysis, and thermochemical hydrolysis. (5) Biomass-based hydrogen production. (6) Biological hydrogen production.
The choice of hydrogen production method is primarily determined by a comprehensive consideration of factors such as investment and operating costs. Exhaust gas can be used as fuel to supply heat to heat transfer oil furnaces; it can be burned directly in combination with fuel gas, or it can undergo catalytic combustion without an open flame.