Generating green hydrogen from biomass!

14 Jul 2022 CW Team

A team of researchers at the Indian Institute of Science (IISc) in Bengaluru has developed a technology to produce hydrogen from biomass. India uses nearly 50 lakh tonnes of hydrogen for various processes in different sectors, and the hydrogen market is expected to grow substantially in the coming years, according to S Dasappa, Professor at the Centre for Sustainable Technologies, and Chair of the Interdisciplinary Centre for Energy Research at IISc., who led the research efforts.

The process consists of two steps. In the first step, biomass is converted into syngas – a hydrogen-rich fuel gas mixture – in a novel reactor using oxygen and steam. In the second step, pure hydrogen is generated from syngas using an indigenously developed low-pressure gas separation unit.

Both these technologies, developed in Dasappa’s lab, ensure that this process is a highly efficient method of generating green hydrogen – it produces 100 g of hydrogen from 1 kg of biomass even though only 60 g of hydrogen are present in 1 kg of biomass. This is because in this process, steam, which also contains hydrogen, participates in both homogeneous and heterogeneous reactions (in homogeneous reactions, reactants are in a single phase whereas in heterogeneous reactions, the reactants are in two or more phases).

The production of green hydrogen using this process is environmentally friendly for another reason – it is carbon negative. The two carbon-based by-products are solid carbon, which serves as a carbon sink, and carbon dioxide, which can be used in other value-added products.

This indigenous technology is a step towards achieving the goal of Atmanirbhar Bharat, Dasappa said. The technology also dovetails nicely with the National Hydrogen Energy Roadmap, an initiative of the Government of India that aims to promote the use of hydrogen as a fuel and reduce dependence on fossil fuels, he added.

Building Material

18 Sep 2025

Ambuja Cements Drags JSW Cement to Court Over ‘Kawach’ Brand

Ambuja Cements, part of the Adani Group, has filed a trademark infringement case against JSW Cement in the Delhi High Court, alleging that its rival copied the ‘Kawach’ brand with its new product ‘Jal Kavach’.Justice Manmeet Pritam Singh Arora issued summons to JSW Cement and its subsidiary, JSW IP Holdings Pvt Ltd, while referring the matter to mediation. Hearings are scheduled to resume on October 15 if no settlement is reached.Ambuja, which registered the ‘Kawach’ trademark in 2019, argues that the term ‘Kavach’—meaning shield—is the distinctive feature of its branding. ..

Bentley Systems Named Innovation Partner of the Year 2025 by Afcons

Bentley Systems, the infrastructure engineering software company, has been recognised by Afcons Infrastructure Limited as its Innovation Partner of the Year 2025 at the Innovation Partners 2025 Felicitation Ceremony in Mumbai. The award acknowledges Bentley’s contribution to Afcons’ engineering digitalisation journey through an enterprise agreement providing access to over 250 Bentley engineering software tools. This adoption has enabled Afcons to accelerate project delivery, standardise digital workflows, and strengthen innovation across its infrastructure portfolio. Among key i..

SBI Sells 13.18% Stake in Yes Bank to Japan’s SMBC

State Bank of India (SBI) has completed the sale of a 13.18 per cent stake in Yes Bank to Japan’s Sumitomo Mitsui Banking Corporation (SMBC) for over Rs 8,889 crore. The divestment is part of a Rs 13,482 crore deal finalised in May with SMBC and seven private banks.Following the transaction, SBI’s shareholding in Yes Bank stands at 10.8 per cent. The deal, involving 4,134.4 million shares at Rs 21.50 each, is the largest cross-border transaction in the Indian banking sector.SBI Chairman C S Setty described the 2020 RBI-led rescue of Yes Bank as a pioneering public-private partnership, addi..