[ sealing ]
Navigating the challenges of sealing in the evolving energy landscape
As the world moves toward cleaner energy solutions, hydrogen production through electrolysis has emerged as a key player in reducing carbon emissions. Electrolyzers, which split water into hydrogen and oxygen using electricity, are at the heart of this process.¹ The efficiency and longevity of these systems are critically dependent on the integrity of their sealing gaskets, which play an essential role in ensuring the overall effectiveness and reliability of the process. Understanding the critical factors in sealing hydrogen is essential for minimizing fugitive emissions and providing safe, efficient containment.
By Angelica Pajkovic, Josmar Cristello, and Johannes Mueller, TEADIT
Hydrogen’ s impact on fugitive emissions
Achieving net-zero emissions by 2050 requires eliminating emissions not only during energy conversion but also during energy production. Fossil fuels such as natural gas, oil, and coal emit carbon dioxide( CO 2
) when burned to produce energy. In contrast, hydrogen offers an alternative method of cleaner energy conversion, producing no greenhouse gas( GHG) emissions.
Hydrogen is converted into energy through two primary methods: 1. Combustion: Similar to fossil fuel combustion. Hydrogen combustion is much cleaner, as it produces no CO 2
. However, it can emit nitrogen oxides( NO x
) at high combustion temperatures if not adequately controlled.
2. Electrochemical conversion( fuel cells): Fuel cells convert hydrogen into electricity through an electrochemical reaction. This process is more efficient than combustion and eliminates NO x emissions entirely.
While GHG emissions from energy conversion are a concern, a far greater issue arises during hydrogen production. The industry categorizes hydrogen production methods based on their carbon footprint, using a color-coded spectrum to indicate environmental impact.
Color spectrum of hydrogen
44 Hydrogen Tech World | Issue 22 | June 2025