BIOS, ABSTRACTS, PHOTOS

HOT TOPIC HOUR FEBRUARY 27, 2014

“NO_x Catalyst Performance on Mercury and SO₃”

BRYDGER VAN OTTEN - REACTION ENGINEERING INTERNATIONAL

BIO:  Brydger Van Otten received undergraduate degrees in Chemical Engineering and Chemistry as well as her Masters degree in Chemical Engineering from the University of Utah. She currently works for Reaction Engineering International in the Engineering Research and Development department. Her expertise involves management of mercury control demonstrations and modeling of mercury emissions from power plants as well as detailed kinetic modeling and computational fluid dynamics modeling.

ABSTRACT: Evaluation of Mercury Control Strategies in the Presence of SO₃ Using the MerSimTM Model

A modeling study has been performed using REI’s mercury modeling tool MerSim to investigate how mercury control strategies for a utility power plant may perform in the presence of SO₃.  Co-benefit strategies as well mercury specific control technologies were investigated for their ability to maintain performance in the presence of increasing SO₃ concentrations.   

CHRISTOPHER REEVES, CORMETECH, INC.

BIO: Chris is a chemical engineer in Cormetech’s Catalyst Development group and has program management responsibilities for the COMET™ Hg Oxidation technology.  Prior to working in the development group, Chris was the laboratory engineering manager with responsibilities for testing reactor design and engineering support.

ABSTRACT: SCR Catalyst Selection and Management for improved Hg Oxidation Performance

Catalyst selection and management for Hg emission control is analogous to that for DeNOx except for some key differences due to the nature and complexity of the Hg⁰ oxidation reaction kinetics.  Cormetech’s unique capability of testing fresh and field deactivated catalysts has been used to measure the influence of temperature, flue gas composition, catalyst type and catalyst age on Hg oxidation activity, facilitating the development of predictive models and advanced catalysts with significantly improved Hg oxidation performance that maintain high DeNOx activity and equivalent SO₂ oxidation performance.  These tools form the basis of Cormetech’s COMET™ technology that can be applied to characterize and optimize the role of the SCR system in Hg compliance strategies. 

NOEL ROSHA – IBIDEN CERAM

ABSTRACT:  Noel Rosha, P.E., Senior Applications Engineer at CERAM will present "SCR Catalyst Management Targeting Mercury Oxidation".  Utilities are interested in taking advantage of the co-benefit of mercury oxidation in their SCR systems to comply with MATS.  High rates of mercury oxidation are possible through the SCR, but many fuel quality and operations variables will affect mercury oxidation performance.  It is expected that a focus on mercury oxidation will result in more frequent catalyst additions and/or the use of catalyst formulated to target increased oxidation, but would reduce the requirements for other mercury control such as activated carbon.  As such, catalyst management becomes increasingly complex when considering an objective for optimizing mercury oxidation.  CERAM will illustrate the effects that targeted oxidation will have on catalyst management planning including economic considerations.