New carbon capture processes could shed new light on the challenge of global warming

Delhi: A group of scientists have computationally designed a hybrid material capable of absorbing methane, a greenhouse gas, converting it into clean hydrogen and also simulated a process of capturing carbon dioxide in situ and converting it into high purity hydrogen from non-combustible grade bioethanol.

They also designed a facility that can test these materials and help continue carbon capture research at the institute.

Considering the global warming potential of greenhouse gases, scientists are trying to explore innovative methods to absorb these gases and convert them into useful substances.

New materials that can play the dual roles of absorption and conversion are the new challenge for the scientist in carbon capture innovation.

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In response to the challenge, in a series of research on carbon capture and utilization, scientists at the Indian Institute of Chemical Technology (IICT), Hyderabad not only computer-engineered a hybrid material capable of capturing methane and also to act as a catalyst to convert it into high purity hydrogen, but also simulated and designed a process to on the spot the capture of carbon dioxide and its conversion into high purity hydrogen from non-combustible grade bioethanol through a mechanism called optimized intensified chemical loop reforming.

The latest research has been published in the journal Elsevier Chemical Engineering and Processing.

The researchers also fabricated a facility that can further research on carbon capture and conversion at the institute.

The facility, a dual stationary and operational Fluidized Bed Reactor (FBR) system, can perform Sorption Enhanced Steam Methane Reforming (SESMR) for the production of high purity H2 based on modeling and preliminary experimental studies.

The FBR facility was successfully commissioned recently in January 2022 at CSIR-IICT, Hyderabad under a mission innovation project supported by the Department of Science and Technology, IICT Hyderabad. It is unique and available for the first time in the country to test the performance of dual function materials for SESMR in the fluidized bed reactor system.

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SESMR offers specific advantages of on the spot The removal of CO2 through sorbents thus overcomes the equilibrium limits of steam reforming and leads to production of high purity H2.

Potential bifunctional materials identified from theoretical predictions are now being synthesized and simultaneously RBF operating conditions are being optimized for existing absorber/catalyst materials to meet the growing challenges of carbon capture and utilization and research associated.

Teresa H. Sadler