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Prof. Vikram. M. Gadre
About the Speaker
Fischer-Tropsch synthesis is an indirect coal liquefaction process in which coal is first converted to syngas (a mixture of CO and H2 ) using gasification reactors, and then, syngas is converted to liquid fuels (petrol, diesel, etc.) using Fischer- Tropsch reactors with the help of iron or cobalt as catalysts. While coal is abundant and widely distributed geographically, crude oil reserves are not. Thus, Fischer-Tropsch synthesis is important in the context of the current energy scenario. Unfortunately, Fischer-Tropsch synthesis also produces less valuable heavy substances consisting of molecules of 50 carbon atoms or more. These heavy atoms are separated through distillation and converted through reactions into lighter components, such as petrol and diesel. Reactive distillation is a process that combines reaction and distillation together in a single equipment. As a result, it can effectively replace reactors and distillation columns. All the products that come out of conventional Fischer-Tropsch synthesis plants can be produced in a single reactive distillation column by varying parameters, such as temperature profile, reflux rate and pressure. Reactive distillation processes offer advantages, such as lower equipment cost and better utilization of reaction exotherms.
In the present study, the following are demonstrated through simulations using the process simulator, Aspen Plus, with appropriate kinetic and thermodynamic models:
It is feasible to carry out Fischer-Tropsch synthesis through reactive distillation.
Reactive distillation offers flexibility for Fischer-Tropsch synthesis as concluded from detailed parametric studies and investigations of some alternate column configurations.
A simulation-based design methodology proposed to configure a reactive distillation column for Fischer- Tropsch synthesis performs reasonably well as seen from case-studies considered. •
About the Speaker
S. Srinivas has been a research scholar at the Chemical Engineering Department of IIT Bombay since July 2005. The aim of his research work is to study the feasibility of the Fischer-Tropsch Synthesis in a Reactive Distillation framework through simulations, and further to suggest a possible configuration that can give useful inputs to perform experiments or economic analysis. Most of his research work has been published in international journals, a few of which are listed below.
Srinivas completed his schooling from Vijayawada and Bhilai and received his B.Tech degree in Chemical Engineering from IIT Kharagpur in 2002. He then worked in GAIL India Limited for three years as a Senior Engineer in the LPG Recovery Unit. At present, his research interests include process synthesis and design, energy integration, and process modeling and simulation.
Apart from playing outdoor sports like football and basketball, Srinivas is also interested in listening to old songs and reading books, both fiction and non-fiction
About the Speaker
S. Srinivas has been a research scholar at Srinivas S., Malik R. K. and Mahajani S. M., Feasibility of Reactive Distillation for Fischer-Tropsch Synthesis, Ind. Eng. Chem. Res., 47 (3), 2008, 889-899.
Srinivas S., Malik R. K. and Mahajani S. M., Feasibility of Reactive Distillation for Fischer-Tropsch Synthesis. 2., Ind. Eng. Chem. Res., 48 (10), 2009, 4710-4718.
Srinivas S., Mahajani S. M. and Malik R. K., Reactive Distillation for Fischer-Tropsch Synthesis: Feasible Solution Space, Ind. Eng. Chem. Res., 2010, Accepted. (DOI: 10.1021/ie100106u)
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