Search Results - maria+flytzani-stephanopoulos

4 Results Sort By:
SO2 Stabilization of Dispersed Silver on Alumina at High Temperatures
BACKGROUNDSilver catalysts can be used for ethylene epoxidation and appear promising for selective catalytic reduction (SCR) of NOx with hydrocarbons. For example, silver catalysts have potential application in SCR of NOx with hydrocarbons or oxygenates to remove nitrogen oxides from various exhaust gas effluents. The promise of the silver catalysts...
Published: 8/17/2021   |   Inventor(s): Maria Flytzani-Stephanopoulos, Xiaoyan She
Keywords(s):  
Category(s): Chemistry: catalyst, Chemistry: exhaust treatment
Conversion of Biomass to Gaseous Fuel Hydrocarbons
Unmet need: Declining petroleum resources have heightened the interest in biomass as potentially the only sustainable source of organic carbon that can be used in the chemical and energy industry Technology solution: New hybrid approach to biofuels production from renewable resources - Utilize metabolic engineering to synthesize targeted biomolecules...
Published: 8/17/2021   |   Inventor(s): Maria Flytzani-Stephanopoulos, Gregory Stephanopoulos, Brian Ricks, Branko Zugic
Keywords(s):  
Category(s): Energy: alternative, Energy: hydrocarbon
Regenerable Sorbents for Hot Fuel Gas Desulfurization for Fuel Cell Applications
TechnologyOver the past two decades, significant effort has been devoted by the DOE, academic groups, and industry to develop regenerable sorbents for the desulfurization of fuel gas streams (particularly coal-derived) at high temperatures. To date, no bulk oxide or mixed oxide sorbent has been found that achieves the desired criteria for high reactivity,...
Published: 8/17/2021   |   Inventor(s): Maria Flytzani-Stephanopoulos, Zheng Wang, Mann Sakbodin
Keywords(s):  
Category(s): Chemistry: coal conversion, Chemistry: gas conversion, Chemistry: petroleum, Energy: alternative, Energy: hydrocarbon, Energy: conservation, Environmental: emissions reduction
Novel Catalysts with Substantially Reduced Metal Content and Undiminished Activity
SummaryResearchers at Tufts University have discovered a novel method to make effective catalysts for fuel cells using only a fraction of the precious metals typically used, substantially lowering manufacturing costs. The resulting catalyst is virtually free of microcrystalline metal particles and just as efficient as traditional catalysts.BackgroundFuel...
Published: 8/17/2021   |   Inventor(s): Maria Flytzani-Stephanopoulos, Howard Saltzburg, Qi Fu*
Keywords(s):  
Category(s): Chemistry: catalyst, Energy: alternative