A Power to Gas technológia hatékonysága : The efficiency of Power to Gas technology

The significant role of hydrogen in the transition to the current energy system without net emissions is obvious, the smart interconnection of renewable electricity. Most importantly, it does not emit CO2 and causes almost no air pollution when used. It thus offers a solution for the decarbonisation of industrial processes and economic sectors. In our article, we examine the amount of greenhouse gases emitted by different hydrogen production technologies

Hidrogén szivárgás földgázrendszer esetén : Hydrogen leakage in natural gas systems

The use of hydrogen as an energy source is advantageous because its combustion processes only produce water vapor. The production of hydrogen is possible by electrolysis, which requires only electricity and clean water. In the case when the source of energy used is renewable, the process creates completely carbon-free energy. This produces green hydrogen. Thus, generated excess energy can be stored in underground gas storage facilities, where it is delivered mixed with natural gas. However, it can cause serious leakage problems for plastics, that hydrogen is a much smaller and more mobile molecule than methane

Hidrogén előállításának lehetőségei: Possibilities of hydrogen production

In the 16th century, Turquet De Mayerne was the first to describe the formation of hydrogen. Then not long after, in 1671, Robert Boyle reported independently of him. Finally, in 1776, Henry Cavendish discovered it as a stand-alone element. [1] Its name is derived from the Greek word hydrogen, which means aquifer. Hydrogen is the lightest element, it has a high calorific value and a high heat of combustion, it is flammable and explosive in a wide concentration range, and it is a rapidly diffusing, mixing gas. [2] Although one of the most common elements in the universe, it is not free on Earth, it occurs only in its compounds in enormous quantities. It can be produced from hydrogen compounds by various processes using energy. The article presents some possibilities of hydrogen production, without claiming to be exhaustive. Kivonat A XVII. században elsőként Turquet De Mayerne írta le a hidrogén keletkezését. Majd nem sokkal később, 1671-ben tőle függetlenül Robert Boyle is beszámolt róla. Végül 1776-ban Henry Cavedish felfedezte, hogy önálló elem. [1] Nevét a görög hydrogénium szóból származtatjuk, amely jelentése vízalkotó. A hidrogén a legkönnyebb elem, fűtőértéke, égéshője nagy, széles koncentrációs tartományban éghető és robbanóképes, továbbá gyorsan diffundáló, keveredő gáz. [2] Ugyan a világegyetem egyik leggyakoribb eleme, de a Földön szabadon nem, csak vegyületeiben fordul elő hatalmas mennyiségben. A hidrogén vegyületeiből előállítható, különböző eljárásokkal, energia felhasználásával. A cikk a hidrogén előállítás egyes lehetőségeit mutatja be, a teljesség igénye nélkül