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Dr. Sivamohan Reddy

Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India


Talk Title
 In-situ gasification of biomass for hydrogen rich fuel gas mixture

Talk Abstract

The continuous consumption of fossil fuels result in the tremendous increase in carbon emissions. This directs to opt for renewable energy source with zero carbon emissions. Biomass being carbon neutral with huge quantities available across the globe can supplement fossil fuels. The primary constituents of lignocellulosic biomass are cellulose, hemicellulose and lignin. Biomass can be converted into biofuels via biological, thermo-chemical and hydrothermal routes. Hydrothermal gasification does not demand extra energy for drying. In-situ gasification of gained attention over the years due to their potential to reduce tar and enhance the gas yields. Temperature plays a key role that determine the over all gas yields and carbon gasification efficiency. Temperature is the prominent operating parameter that decides the dominance of reforming and pyrolytic reactions. Different agricultural and fruit wastes are chosen as biomass for in-situ gasification with water as a medium at high temperature and pressure (Sub- & supercritical). The chosen biomass was washed and impregnated with metal precursor at an optimal pH. Ni and Ru metal precursor was chosen due to their potential to accelerate reforming reactions and methanation reactions. The impregnated and washed biomass samples were characterized using TGA, FTIR, SEM-EDX, TEM, XRD and XPS to understand the impregnation and thermal effect both on gas yields and nano-particle synthesis. The other operating parameter is the feed concentration which was varied to determine their influence on the gasification product yields. Further, the impregnation of catalysts on to the chosen biomass was evaluated and quantified in terms of gasification yields.

Short Biography

Dr. Sivamohan Reddy is an Assistant Professor working in Department of Chemical Engineering at Indian Institute of Technology, Roorkee, Uttarakhand, India. His research group started working on in-situ gasification of different biomass with various metal salts. They started investigating the impact of various operating parameters on the metal adsorption and their behavior on the gas yields during gasification in sub- and supercritical water. He was post-doctoral fellow for two years at Lassonde School of Engineering, York university where he worked on the experimental set up developed by National Aeronautics Space Administration to ignite hydrothermal flames and explore their characterics. During the post-doc research period, they configured batch and continuous set up to perform different thermo and hydrothermal degradation processes. He received his doctoral degree from Indian Institute of Science, Bangalore. India. His parallel research interests are developing nanomaterials for removal of toxic and heavy metals from water, antibacterial/antiviral acitivy and air purification, extraction of nutrachemicals using supercritical carbon dioxide, Supercritical adsorption of drugs on to biopolymers.

Talk Keywords
Biomass, In-situ gasification, Carbon gasification efficiency, Impregnation, catalyst.
Target Audience
Masters & Doctoral Students, Post Doctoral researchers, Industries working on H2 production
Speaker-intro video

The International Conference on Innovative Applied Energy (IAPE’18)