Hydrogen Generator - What is the energy supply method for hydrogen?

There are two main ways of supplying hydrogen energy: electrolysis of water and pyrolysis.

Electrolytic water: This is currently one of the common hydrogen production methods. Electrolysis of water is the process of breaking down water molecules and producing hydrogen and oxygen by applying electricity to the water. This process requires electrical energy, usually achieved using an electrolytic cell.

Pyrolysis: Pyrolysis is a method of producing hydrogen gas by decomposing natural gas or other hydrocarbons at high temperatures. This process usually requires a higher temperature, usually above 800 degrees Celsius. During the pyrolysis process, hydrocarbons will decompose into carbon and hydrogen. Pyrolysis is mainly used in industrial production, but due to the need for high temperatures, its energy efficiency is relatively low.

Hydrogen Generator - What is the energy supply method for hydrogen?

In addition to electrolysis of water and pyrolysis, there are also some other hydrogen production methods. Here are some of them:

Gas phase water decomposition: This is a method of using high temperature to decompose water vapor and produce hydrogen gas. This process usually requires a high-temperature furnace or solar energy, so the energy cost is relatively high.

Biological fermentation: Some microorganisms can produce hydrogen gas through the fermentation process. This usually involves using specific microbial strains in bioreactors to generate hydrogen gas from organic waste and other organic substances.

Carbon thermal reduction: This is a method of producing hydrogen gas by reacting carbon with water vapor. This process utilizes the high thermal reducibility of carbon, but also produces some by-products, such as carbon monoxide.

Hydrogen Generator - What is the energy supply method for hydrogen?

These methods have their applicability and limitations in different applications and scales. When choosing a hydrogen production method, it is necessary to comprehensively consider factors such as cost, efficiency, and sustainability.