An article by Investor.bg follows the development of technologies for hydrogen production, as well as the prices at which is traded. An excerpt from the article is published below. You can read the original at: https://www.investor.bg/analizi/91/a/kolko-sthttps:/www.investor.bg/analizi/91/a/kolko-struva-proizvodstvoto-na-vodorod-328319/ruva-proizvodstvoto-na-vodorod-328319/
Discovered in 1520 by the Swiss scientist Paracelsus, hydrogen is today at the heart of the future development of world economy. It is considered a key raw material in the decarbonisation strategy for non-electrifying sectors.
Hydrogen is still used in some industries and 95% of it is produced using fossil fuels – the so-called. “black” hydrogen. Hydrogen produced from natural gas (methane) or petroleum products costs about 1,600 euros per tonne, and from coal – about 1,000 euros per tonne, according to a publication by the Science and Technology Committee in the French Senate.
The production from methane emits about 9-13 tons of carbon dioxide per ton of hydrogen and between 13-18 tons from oil. The most polluting is the production of hydrogen from coal – 20 tons of open-cast coal and 24 tons – for closed mines.
Nevertheless, plans include reducing carbon dioxide emissions and abandoning fossil fuels. Therefore, the main task is how to produce hydrogen so that it meets environmental goals. One of the first ideas that emerged was to use existing technologies, but combined with the carbon capture and storage. In this way the so-called “blue” hydrogen is produced.
With carbon capture and storage technology, emissions are reduced to less than 5 tons when the primary source is methane or oil. According to the data, the current capture and storage of carbon dioxide costs about 2,000 euros per tonne, with the horizon for the price to fall to 50 euros per tonne in the long run.
But the technology, which will reduce hydrogen emissions, actually makes its production more expensive by additional 500 – 2,000 euros per tonne, or 30-125%.
However, the method of electrolysis has aroused much greater interest in recent months. With 9 liters of water and 55 kilowatt hours of electricity, 1 kilogram of hydrogen is produced.
But for now, electrolysis is significantly more expensive than producing hydrogen from fossil fuels – between 4,000 and 6,000 euros per tonne, although if energy from renewable sources is used, the so-called “green” or “pure” hydrogen is produced, considered the future of the decarbonisation of EU by 2050.
The complete article is available at: