11-Apr-2022: New materials & processes for carbon capture and utilization could show new light for global warming challenge

A group of scientists have computationally designed a hybrid material which can absorb greenhouse gas methane, converting it to clean Hydrogen and also simulated a process of capturing carbon dioxide in-situ and converting it to high purity hydrogen from non-fuel grade bioethanol. They have also designed a facility that can test such materials and help further carbon capture research at the institute.

Given the global warming potential of greenhouse gases, scientists are trying to explore innovative methods of absorbing these gases and converting them to useful substances. New materials that can play dual role of absorption as well as conversion is the new challenge area for scientist in carbon capture innovation.

Responding to the challenge, in a series of researches on carbon capture and utilization scientists from Indian Institute of Chemical Technology (IICT), Hyderabad have not only computationally designed a hybrid material that can capture methane and also act as catalyst to convert it to high purity hydrogen, but also simulated and designed a process for in situ capture of carbon dioxide and its conversion to high purity hydrogen from non-fuel grade bioethanol through a mechanism called the optimized intensified chemical looping reforming. The later research has been published in the Elsevier journal Chemical Engineering and Processing.

They researchers have also fabricated a facility that can further carbon capture and conversion research at the institute. The facility, a dual operational fixed cum fluidized bed reactor system (FBR) can carry out sorption enhanced steam methane reforming (SESMR) for high purity H2 production based on the modelling and preliminary experimental studies.

The FBR facility has been successfully commissioned recently in Jan 2022 at CSIR-IICT, Hyderabad, under a Mission Innovation Project supported by Department of Science and Technology to IICT Hyderabad. It is unique and available for the first time in the country to test the performance of dual functional materials for SESMR in fluidized bed reactor system. SESMR offers specific advantages of in-situ CO2 removal through sorbents and thereby overcomes the equilibrium limitations of steam reforming and leads to high purity H2 production.

Potential dual functional materials identified from theoretical predictions are now being synthesized and simultaneously FBR operating conditions are being optimized for existing sorbent/catalyst materials for meeting increasing challenges of carbon capture and utilization and associated research.

30-Mar-2022: National Workshop on Carbon Capture, Utilisation and Storage

It is critical for a developing nation like India to address the rising greenhouse gas emissions resulting from a rapidly expanding industrial sector, while not compromising its economic growth. The Indian power/ steel/ cement/ refinery and other heavy industrial sectors rely heavily, at present, on coal and petroleum products. However, in the long-term, deep decarbonisation scenarios through Carbon Capture, Utilization and Storage (CCUS), could play an important role to achieve net-zero emissions in energy systems.

In view of the above, the NITI Aayog  organised a National Workshop on CCUS on 30th March 2022, in the hybrid mode. The workshop brought together government officials, industry leaders and the academia to discuss the role of CCUS in enabling a circular economy for India.

In the inaugural session, Shri Amitabh Kant, Chief Executive Officer, NITI Aayog, mentioned about India’s commitment, in the CoP 26, to become a NET ZERO Carbon Nation by 2070, and the consequent need to make the CCUS projects both technically, as well as economically viable.

The Secretary, Ministry of Coal -- Shri Anil Kr Jain -- emphasised on the launching of a National Mission on CCUS and added that the CCUS projects would become viable once CO2 capture was done at the pithead.

Dr. K Vijay Raghavan, Principal Scientific Adviser to the Government of India, said that a carbon market, with a suitable pricing mechanism, was important to create a pull amongst the stakeholders to ensure the right level of investment in CCUS technologies in India

Shri Atanu Mukherjee, President and Chief Executive Officer, M N Dastur Co. Ltd., presented the methodology of capturing and utilizing CO2 economically and  effectively, at an industrial scale. He emphasised on the need for a  policy support for enabling the CCUS value chain and the related carbon markets.

The Vice Chairman, NITI Aayog – Dr  Rajiv Kumar -- in his inaugural address, mentioned that India was, probably, the only country in the world that was required to continue growing, but in an environmentally benign manner. Such an imposing challenge, he added, could be met only through the implementation of CCUS projects.  He further surmised that one sector – that continued to remain largely unnoticed from the carbon point-of-view – was Agriculture. In order to restore the carbon content in the soil to about 2.5% from the existing approximately 0.4%, natural farming needed to be promoted in a big way across the country. He concluded his address by saying that the NITI Aayog would  come out, through a consultative process in the form of a task force, with a policy document for promoting the deployment of CCUS projects, in potential  sites across India, in a time bound manner.

The 3 technical sessions deliberated on the work needed to overcome the current lack of experience while developing and integrating the capture and utilization of CO2, coupled  with an optimum storage infrastructure.

In order to introduce and promote CCUS in India, a stewardship role  needed to be played by the Government of India for the development of a robust and effective CCUS policy framework.