Fall 2015
Sarma V. Pisupati
Professor of Energy and Mineral Engineering
Undergraduate Program Chair of Energy Engineering
Director of Online Education
John and Willie Leone Family Department of Energy and Mineral Engineering
College of Earth and Mineral Sciences
The Pennsylvania State University
Wednesday, December 2, 2015

High pressure gasification is desirable to generate gas that can be used for power generation, produce hydrogen for refining operations and liquid fuels through F-T synthesis. Demonstration power plants utilizing advanced power generation methods using Integrated Gasification Combined Cycle (IGCC) have been facing problems with carbon conversion and ash fouling. Sulfur species in the products can cause corrosion to syngas cooler, strengthen the deposits by interacting with iron or iron oxides, and can poison the Fischer Tropsch (FT) catalysts in the downstream of a coal to liquids plant. A detailed analysis of various IGCC plant operational data by US Department of Energy revealed that gasification island problems require a better understanding of mineral matter transformations and carbon carryover leading to fouling of secondary syn. gas coolers. A high pressure, high temperature entrained flow reactor was recently designed and built at Penn State to understand the high pressure gasification behavior of coals and biomass, mineral matter transformations, and measure pollutant formation kinetics. This reactor is used to understand these issues related to coal/biomass/petcoke gasification behavior and synergies between coal and biomass during cogasification. This presentation will discuss the design methodology, preliminary modeling and experimental results on pyrolysis of biomass/coal blends, conversion behavior of organic and inorganic forms of sulfur during gasification and mineral transformations that could potentially lead to unburnt carbon loss and fouling problems.

 

Biosketch

Sarma Pisupati is Professor and Chair of the Energy Engineering Program, and Director of Online Education in the John and Willie Leone Family Department of Energy and Mineral Engineering at Penn State. He also codirects Coal Science and Technology Program of the EMS Energy Institute. He earned B.S. and M.S. degrees in Chemical Engineering and a Ph.D. degree in Fuel Science. He has been studying and teaching issues related to the energy and environment for the past 34 years. He has worked in industry for five years before joining The Pennsylvania State University.

Prof. Pisupati's main areas of scientific research are combustion behavior of fossil fuels in fixed; fluidized and pulverized modes; computational fluid dynamic modeling of combustion systems for emission reduction; advanced power generation methods; oxy-fuel combustion; slagging and fouling in gasification; coal and biomass co gasification, energy conservation methods. He was Principal Investigator (PI) or co-PI on 60 externally funded scientific research projects and was involved in 15 other projects with specific responsibilities. He coauthored about 200 research publications and has one US patent.