Liu, Shyh-Jiun Huang, Chia-Hung Huang, Chun-Kai Hwang, Weng-Sing This innovation would be very useful for heterogeneous catalysis where elevated temperatures are needed to drive the reaction.Ĭhelating agent-assisted heat treatment of a carbon-supported iron oxide nanoparticle catalyst for PEMFC. Furthermore, because of the foam s open-cell structure, the catalyst can be applied either directly to the foam ligaments or in the form of a catalyst- containing washcoat. Lower temperatures are achievable by supplying less electrical power to the foam.
Although the light-off temperature of most catalysts is only a few hundred degrees Celsius, the electrically heated foam is able to achieve temperatures of 1,200 C. With the electrically heated catalyst bed, virtually all of the power is used to heat the support, and only a small fraction is lost to the surroundings. The catalyst bed is heated indirectly, thus requiring excessive power. This typically is done by heating the assembly that contains the catalyst bed, which results in much of the power being wasted and/or lost to the surrounding environment. Catalyst beds must be heated to a light-off temperature before they catalyze the desired reactions. Designed for heterogeneous catalysis, the method can be used by the petrochemical, chemical processing, and power-generating industries, as well as automotive catalytic converters. This allows the catalyst bed to be heated directly, requiring less power to reach the desired temperature more quickly. The foam support may be resistively heated by passing an electric current through it. McNeal, Shawn R.Ī method of heating a foam-based catalyst bed has been developed using silicon carbide as the catalyst support due to its readily accessible, high surface area that is oxidation-resistant and is electrically conductive.
Method of Heating a Foam-Based Catalyst Bedįortini, Arthur J.
#Spiral knights evo catalyst full#
When the hydrocarbon absorber is not full and able to collect additional hydrocarbons, the flow of air ismore » directed through a bypass path that bypasses the electrically heated catalyst to conserve the thermal energy stored within the electrically heated catalyst.« less When the hydrocarbon absorber is full and unable to collect additional hydrocarbons, the flow of air is directed through an electrically heated catalyst to treat the flow of air and remove the hydrocarbons. Roos, Bryan Nathaniel Gonze, Eugene V Santoso, Halim GĪ method of treating emissions from an internal combustion engine of a hybrid vehicle includes directing a flow of air created by the internal combustion engine when the internal combustion engine is spinning but not being fueled through a hydrocarbon absorber to collect hydrocarbons within the flow of air. Method of treating emissions of a hybrid vehicle with a hydrocarbon absorber and a catalyst bypass systemĭOE Office of Scientific and Technical Information (OSTI.GOV)
0 kommentar(er)
