Oil and Natural Gas Corp (ONGC) today said it has received US Patent on hydrogen generation process, opening up new vista for generating the clean energy source from water on commercial scale.

“United States Patent and Trademark Office has issued a Patent to ONGC Energy Centre (OEC) Trust and Institute of Chemical Technology (ICT), Mumbai for the innovative research work on ‘Hydrogen Production Method by Multi—step Copper—Chlorine Thermo chemical Cycle’,” the company said in a statement here.

Hydrogen is considered as one of the most efficient and clean emerging sources of energy for transport and power generation applications.

Research efforts by ICT and OEC are continuing to develop and demonstrate indigenous integrated facility for closed loop operation of the process for hydrogen generation at a laboratory scale. Key reactors used in this process have been indigenously developed.

“The Patent holds the potential to open up new vista for generation of hydrogen from water on commercial scale in a sustainable manner in the coming years,” it said.

The ONGC Energy Centre Trust, set up by ONGC, has been pursuing a programme to develop innovative methods to generate hydrogen by splitting water thermo chemically, using heat generated from solar or nuclear energy.

Such methods involve carrying out a sequence of chemical reactions at high temperature (5500C — 9000C) that use metals, acids and water. When such processes are carried out in a closed—loop process, they result in splitting of water into hydrogen and oxygen while reactants are regenerated.

There are challenges in development and integration of these complex chemical reactions at high temperature for which research is being pursued by many countries.

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