Abstract:
Disclosed herein is a system for reducing NOx emissions comprising a fuel tank in fluid communication with a fuel converter, wherein the fuel converter is located down stream of the fuel tank and wherein the fuel converter comprises a catalyst composition that is operative to continuously convert heavy hydrocarbon molecules having 9 or more carbon atoms per molecule into light hydrocarbon molecules having 8 or less carbon atoms per molecule; a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter and located downstream of the fuel converter; and an engine in fluid communication with the fuel tank and the selective catalytic reduction catalyst reactor, wherein the engine is located downstream of the fuel tank and upstream of the selective catalytic reduction catalyst reactor.
Abstract:
System (10) and method for supplying reductants to an emission treatment system. (28) The system includes a fuel tank (14) adapted to supply a premixed fuel stream that includes a primary component and a reductant component, and an engine (12) in fluid communication with the fuel tank(14) , wherein the engine (14) is configured to create an emission. The engine (14) includes an emission treatment system (28) to treat the emission. The system (10) also includes a separation system (32) that includes a membrane with differential permeability for the reductant component relative to the primary component. The separation system (32) is configured to receive at least a portion of the premixed fuel stream from the tank (14) and to separate the premixed fuel stream into a first fraction (44) and a second fraction (3S) . The first fraction (44) includes a higher concentration of the reductant component than the second fraction, (36) and the separation system (32) is configured to supply the first fraction (44) to the emission treatment system (28) .
Abstract:
The disclosed embodiments relate to a method and system for regeneration of a catalyst. The system includes an engine that creates an exhaust stream, a reactor that includes a catalyst is in fluid communication with the engine to receive the exhaust stream and a sensor that measures a system parameter related to the engine or the reactor and produces a signal corresponding to the system parameter. The system also includes a controller that receives the signal and directs the exhaust stream to the catalyst if the system parameter is indicative of a regeneration value.
Abstract:
The disclosed embodiments relate to a method and system (10) for regeneratio n of a catalyst (18) . The system includes an engine (12) that creates an exhaust stream, a reactor (16) that includes the catalyst is in fluid communication with the engine to receive the exhaust stream and a sensor (22 ) that measures a system parameter related to the engine or the reactor and produces a signal corresponding to the system parameter. The system also includes a controller (19) that receives the signal and directs the exhaust stream to the catalyst if the system parameter is indicative of a regenerati on value.
Abstract:
Disclosed herein is a system for reducing NOx emissions comprising a fuel tank in fluid communication with a fuel converter, wherein the fuel converter is located down stream of the fuel tank and wherein the fuel converter comprises a catalyst composition that is operative to continuously convert heavy hydrocarbon molecules having 9 or more carbon atoms per molecule into light hydrocarbon molecules having 8 or less carbon atoms per molecule; a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter and located downstream of the fuel converter; and an engine in fluid communication with the fuel tank and the selective catalytic reduction catalyst reactor, wherein the engine is located downstream of the fuel tank and upstream of the selective catalytic reduction catalyst reactor.
Abstract:
A catalyst system for the reduction of NOx comprises a catalyst comprising a metal oxide catalyst support, a catalytic metal oxide comprising at least one of gallium oxide or silver oxide, and at least one promoting metal selected from the group consisting of silver, cobalt, molybdenum, tungsten, indium, bismuth and mixtures thereof. The catalyst system further comprises a gas stream comprising an organic reductant, and a compound comprising sulfur. A method for reducing NOx utilizing the said catalyst system is also provided.
Abstract:
A catalyst system for the reduction of NOx comprises a catalyst comprising a metal oxide catalyst support, a catalytic metal oxide comprising at least one of gallium oxide or silver oxide, and at least one promoting metal selected from the group consisting of silver, cobalt, molybdenum, tungsten, indium, bismuth and mixtures thereof. The catalyst system further comprises a gas stream comprising an organic reductant, and a compound comprising sulfur. A method for reducing NOx utilizing the said catalyst system is also provided.
Abstract:
Disclosed herein is a system for reducing NOx emissions comprising a fuel tank in fluid communication with a fuel converter, wherein the fuel converter is located down stream of the fuel tank and wherein the fuel converter comprises a catalyst composition that is operative to continuously convert heavy hydrocarbon molecules having 9 or more carbon atoms per molecule into light hydrocarbon molecules having 8 or less carbon atoms per molecule; a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter and located downstream of the fuel converter; and an engine in fluid communication with the fuel tank and the selective catalytic reduction catalyst reactor, wherein the engine is located downstream of the fuel tank and upstream of the selective catalytic reduction catalyst reactor.