Types of hydrogen are there ?

Hydrogen energy can be synthesized from a variety of natural fuels. Which we can classify by the type of energy source and the method of producing hydrogen. It is specified in various colors as follows.

1.Green Hydrogen

is hydrogen produced using electricity from clean energy sources, wind energy, solar energy and electrolysis process (electrolysis), which green hydrogen is considered hydrogen with low or zero emissions Because it uses clean energy sources such as wind or sunlight. Supply electricity for electrolysis in the process of separating water (H2O) into hydrogen (H2) and oxygen (O2).

2.Yellow Hydrogen

is hydrogen produced from electrical energy from fossil fuels. and alternative energy together with the electrolysis process (Electrolysis) This process uses electrical energy to separate hydrogen from water. which is the difference between yellow hydrogen with green hydrogen Well, the energy used for production will involve fossil fuels as well.

3.Pink Hydrogen

It is hydrogen produced using nuclear energy. together with the electrolysis process (Electrolysis) This process uses electrical energy to separate hydrogen from water. However, pink hydrogen still has some limitations, namely the high production cost. And there are also safety risks from nuclear power plants.

4. Blue Hydrogen (Blue Hydrogen)

It is hydrogen that can be produced from natural gas and coal. Production from natural gas uses a steam reforming process at a high temperature of approximately 800-1,000 degrees Celsius, which transforms hydrocarbons in natural gas with steam. along with storing Co2. As for the use of coal, a process called Gasification is used, which is a combustion with high heat. Coupled with Co2 storage

5. Gray Hydrogen

Hydrogen is produced from a chemical process using fossil fuels such as natural gas, which separates hydrocarbon compounds from fossil fuels. Using chemical processes such as steam reforming or partial oxidation processes, Co2 is released into the atmosphere in large quantities. Because this process is the burning of fossil fuels. This makes gray hydrogen the hydrogen that emits the most greenhouse gases today. Gray hydrogen is the easiest and cheapest form of hydrogen to produce today. Therefore, it is widely used in various industries such as the petrochemical industry. Chemical industry and steel industry, etc.

6.Brown Hydrogen

It is hydrogen produced using the gasification process. (Gasification) of coal using high heat. It produces carbon dioxide (CO2), hydrogen, and other gases. Brown hydrogen is less clean than blue or yellow hydrogen. Because the production process releases carbon dioxide (CO2), the production costs are quite low. Therefore, it is commonly used in many large industries.