Hydrogen is one of the most abundant elements in the universe and could play a significant role in the transition to a clean and low-carbon energy system. Shell has a growing network of hydrogen stations in Europe and in North America, where it is part of several initiatives to encourage the adoption of hydrogen in transport.
How hydrogen is produced
日本一本道最新高清无码Hydrogen is abundant but is rarely found in its pure form. It has to be produced through chemical reactions. Around 99% of hydrogen today is produced through fossil-fuel reforming, a process that produces a reaction between natural gas and steam. Hydrogen can also be produced from renewable sources, using biogas, a gaseous form of methane obtained from biomass, or through electrolysis using electricity generated by renewable sources.
Here’s how each of these processes work:
日本一本道最新高清无码The following primary energy sources can be used: Biogas or Biomethane; Natural Gas; Solar or Wind.
Biogas or Biomethane, or Natural Gas go through a thermochemical conversion called steam methane reform (SMR) which produces a reaction with steam and forms a synthetic gas that consists predominantly of hydrogen.
Natural gas, solar or wind as a primary energy source can be used to produce electricity, which then is used in a process called electrolysis to split water into hydrogen and oxygen.
Either of these processes produce hydrogen.
Can hydrogen be used to power cars and buses?
Hydrogen can be used to power a number of different types of transportation. It can be stored and transported at high energy density in liquid or gaseous form, and it can be used as a fuel for power or in transport, and in industry as feedstock.
Yes. Just like battery-electric vehicles, hydrogen fuel cell electric vehicles (FCEVs), including passenger cars and buses, are powered by electricity and so produce no carbon dioxide (CO2) or other harmful emissions from their tailpipe – only water vapour. In these vehicles, energy is stored in the form compressed hydrogen fuel, rather than in a battery.
The hydrogen fuel-cells convert compressed hydrogen from their fuel tanks into electricity that powers the electric motor in th