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Dardas

Zissis Dardas, Worcester, MA US

Patent application numberDescriptionPublished
20090000480Composite Palladium Membrane Having Long-Term Stability for Hydrogen Separation - The materials of adjoining porous metal substrate (01-01-2009
20100005969Pd Menbrane Having Improved H2-Permeance, and Method of Making01-14-2010
20100323250DESULFURIZING SYSTEM FOR A FUEL CELL POWER PLANT - The system (12-23-2010

Patent applications by Zissis Dardas, Worcester, MA US

Zissis Dardas, Worcerter, MA US

Patent application numberDescriptionPublished
20100104903Power Plant With Membrane Water Gas Shift Reactor System - The fuel processing system of the present invention supplies a flow of H2-rich reformate to a water gas shift membrane reactor, comprising a water gas shift reaction region and a permeate region, separated by an H2-separation membrane H2 formed over a catalyst in the reaction region selectively passes through the H2-separation membrane to the permeate region for delivery to a use point (such as the fuel cell of a fuel cell power plant) A sweep gas, preferably steam, removes the H2 from the permeate region The direction of sweep gas flow relative to the reformate flow is controlled for H2-separation performance and is used to determine the loading of the catalyst in the reaction region Coolant, thermal and/or pressure control subsystems of the fuel cell power plant may be integrated with the fuel processing system04-29-2010

Zissis A. Dardas, Worcester, MA US

Patent application numberDescriptionPublished
20090101009Core separator integration for mercury removal from flue gases of coal-fired boilers - A method of separating a coal particle-laden gas mixture into a flue gas recirculation stream and a concentrated sorbent stream includes initiating combustion of a mixture of air and coal in a combustion chamber, extracting a mixture of flue gas and partially-combusted coal particles from the combustion chamber, inducing flow of the mixture of flue gas and partially-combusted coal particles toward a core separator apparatus, and separating the mixture of flue gas and partially-combusted coal particles into the flue gas recirculation stream and the concentrated sorbent stream using a centrifugal action of the core separator apparatus. The recirculation stream and the concentrated sorbent stream flow out of the core separator apparatus on a substantially continuous basis.04-23-2009
20090166001Endothermic cracking aircraft fuel system - An aircraft system includes a heat source and a passage near the heat source for carrying fluid having a cooling capacity to cool the heat source. The passage includes a catalyst that endothermically cracks the fluid to increase the cooling capacity.07-02-2009
20090180941DEACTIVATION RESISTANT PHOTOCATALYSTS - The present disclosure relates to a fluid purification device that has a deactivation resistant photocatalyst having nanocrystallites of less than 14 nanometers (nm) in diameter with at least 200 m2 surface area/cm3 of skeletal volume in cylindrical pores of 5 nm in diameter or larger, with the mode of the pore size distribution 10 nm or more.07-16-2009
20110117002SYSTEMS AND METHODS FOR REMOVAL OF CONTAMINANTS FROM FLUID STREAMS - A contaminant removal system for selectively removing contaminants from a fluid stream. The contaminant removal system has a catalytic reactor of the type that is susceptible to deactivating agents. The catalytic reactor is configured to remove contaminants from a fluid stream. The contaminant removal system has a first adsorbent device positioned upstream, with respect to the fluid stream direction, of the catalytic reactor, that is configured to remove the deactivating agents from the fluid stream. The contaminant removal system has a second adsorbent device positioned downstream, with respect to the fluid stream direction, of the catalytic reactor. The second adsorbent device is configured to remove undesirable byproducts that may be generated when the catalytic reactor removes contaminants from the fluid stream.05-19-2011

Patent applications by Zissis A. Dardas, Worcester, MA US