Green Hydrogen Alternative Energy
Due to climate change caused by global warming, there will only be more and more problems. The main problem comes from the increasing amount of carbon dioxide emissions from burning various fuels. both from transportation and industrial production
This leads to more research and development of alternative energy use. Which alternative energy refers to the energy obtained from other sources of natural energy that is clean energy. to reduce dependence on fossil fuels, shale, petroleum or natural gas in order to reduce carbon dioxide emissions
If talking about the word alternative energy, there are many types. Currently popular are Water power is currently used to generate electricity known as ‘Hydropower’,
which is the use of water turbines to change the kinetic energy of water caused by water discharge from high ground to turn a turbine and generator to generate electricity. solar power For example, the use of solar cells (Solar Cell) that we know well.
geothermal energy by using hot steam from the production well to spin an electric generator Biomass energy, fermentation of animal manure to produce biogas (Biogas) Hydrogen power is one of the alternative energy as well, especially green hydrogen.
Hydrogen energy are being watched very well especially in Europe which has continuous development plans It is estimated that within the next 30 years, by 2050, hydrogen energy will be fully utilized. to replace fossil fuel energy in hopes of reducing greenhouse gas emissions to zero
What is hydrogen?
Hydrogen is the lightest and most common element on Earth.
Hydrogen provides high fuel energy, colorless, odorless, flammable and clean, non-toxic to the environment. in greek Hydrogen means water causing agent. Because when it goes through the combustion process, the resulting product is water.
Hydrogen energy It is considered a highly efficient, clean, environmentally friendly fuel. And it is another alternative that can be used as an alternative energy to traditional energy.
Traditional energy sources produce greenhouse gases. which affects global climate change or that is global warming which hydrogen energy is clean energy therefore does not cause the greenhouse effect But the process of producing hydrogen that is clean and does not pollute the environment is Raw materials used as fuels and technologies to create hydrogen is an important translator
The raw materials for hydrogen production include:
Fossil fuels such as natural gas, coal, petroleum
Renewable energy sources such as biomass, water
nuclear power
Hydrogen production technology
Thermochemical Process
It is a chemical method using heat. The main raw materials are various types of hydrocarbons, fossils such as coal, etc.
Today, this is the largest method of producing hydrogen energy.
There are 2 processes: Steam reforming and gasification
by this process does not reduce the amount of carbon dioxide at all Because production also results in a large amount of carbon dioxide emissions. which goes through an additional hydrogen purification process.
Electrolysis process
or Electro chemical process. This method is not new at all. Which has been invented since 1888, but each brand, each model has differences in materials, quality, safety
The electrolysis method uses electricity to separate the water molecules, which is H2O. to come out as hydrogen and oxygen gas
The hydrogen gas will be clean hydrogen gas. because no carbon dioxide is released
Biochemical Process
or biochemical processes Most of them rely on the photosynthesis process of small organisms. Most of them are currently being tested in blue-green algae.
But this method is still very limited in production. Both in terms of productivity and efficiency are low and production costs are still high.
Get to know the color of hydrogen.
Grey
is to produce hydrogen and also produce carbon dioxide. which is not good for the environment The production process still uses fossils.
Light blue
is the use of hydrocarbons or fossils as raw materials but increases the capture and storage of carbon dioxide.
Green
is the separation of water by electricity which does not emit carbon dioxide out using water as a raw material Or another method is the biomass method.
Other benefits and limitations of hydrogen
Benefit
oil refining, petroleum refining, petroleum It is used to improve the quality of crude oil to produce fuel.
Fuel cell
Used to generate electricity in fuel cells through the process of electrolysis. an electric current
Food industry
Used to change the unsaturated fatty acid structure in animal fats and vegetable oils to saturated fatty acids.
Pharmaceutical
Used as a precursor to the production of Sorbitol, which is used in the production of cosmetic products, surfactants, etc.
industry
Used for welding, metal cutting
aerospace
It is an alternative energy for fuel cells in the aerospace industry due to its light weight.
Limitations of the use of hydrogen energy
storage and transportation
Because hydrogen is a small, lightweight element and has corrosive properties. thus making it difficult to store and transport.
High cost
in the production of green hydrogen Without CO2 emissions, a device called an electrolyzer is used to split water into hydrogen and oxygen using electricity. The cost of this equipment is still high.
