India’s maiden project of blending hydrogen
Part of: Prelims and Mains GS-III: Energy
In news: Gas Authority of India Limited (GAIL) has commenced India’s first-of-its-kind project of mixing hydrogen into natural gas system at Indore, Madhya Pradesh.
- This project is to establish the techno-commercial feasibility of blending hydrogen in the CGD network
- Marks the stepping stone of India’s journey towards a hydrogen-based and carbon-neutral future.
- This grey hydrogen would subsequently be replaced by green hydrogen.
- Help in creation of a robust standard and regulatory framework in India to cover the aspects of injecting hydrogen into natural gas
This is in line with the growth of a gas-based economy in India and with India’s vision of a greener and cleaner environment. As our country is moving forward with ambitious goal of achieving a carbon-neutral and self-reliant future, this project is a significant step in that direction.
Zero-emission hydrogen is gaining momentum around the world and depending on the source, the hydrogen can be classified into green, blue and grey.
- The hydrogen that is obtained by splitting water by electrolysis using electricity from renewable energy sources like solar and wind.
- The process helps in the production of only oxygen and hydrogen.
- The hydrogen is used and oxygen is vented into the atmosphere with no negative impact.
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- Produced from natural gas with a process of steam methane reforming, where natural gas is mixed with very hot steam and a catalyst.
- A chemical reaction occurs creating hydrogen and carbon monoxide.
- Water is added to that mixture, turning the carbon monoxide into carbon dioxide and more hydrogen.
- If the carbon dioxide emissions are then captured and stored underground, the process is considered carbon-neutral, and the resulting hydrogen is called blue hydrogen.
- Made from natural gas reforming like blue hydrogen, but without any efforts to capture carbon dioxide by-products.
What is Hydrogen Blending?
- Hydrogen energy is a viable solution for reducing society’s dependence on fossil fuels and decarbonizing a number of energy sectors.
- One of the measure to phase hydrogen into the energy sector is though natural gas/hydrogen (NG/H2) blending.
- As the name would suggest, NG/H2 blending integrates concentrations of hydrogen into existing natural gas pipelines in order to reduce the carbon intensity of the methane.
- This blending carries the hydrogen and natural gas mix to the intended location.
- The blending of natural gas and hydrogen is currently in its early stages of development.
News Source: PIB