A few days ago Toyota unveiled its final commercial commitment to hydrogen fuel cell, embodied in its new Mirai. This element, is the most abundant in nature, also the cleanest in terms of emissions being considered as replacements for fossil fuels.
However, in the absence of just free form in nature, to obtain in large quantities requires an industrial process which the Total Company devotes a recent informative report.
On Earth, hydrogen is often linked to other elements. The most abundant association is with carbon, with which it forms methane gas and oxygen to form the most abundant liquid on our planet, water. The cleanest way to obtain uncontaminated methane during the manufacturing process is to use renewable energy such as wind or solar to produce an electrolysis to release hydrogen molecules.
Today, obtaining hydrogen comes in its 95 percent of fossil energy sources: natural gas and petroleum, or biomass from wood. There are three industrial methods for hydrogen: molecular transformation, coal gasification and water electrolysis.
The first technique involves the use of chemicals to obtain hydrogen from natural gas oilfield reactions. Is used to steam at very high temperatures to dissociate the carbon hydrogen form natural gas. In two successive reactions, this results dihydrogen one hand and carbon dioxide on the other.
In the case of coal gasification, a reactor is used to burn coal at high temperatures. In the combustion gases which result on the one hand and on the other dihydrogen to carbon monoxide are released.