Abstract: A control device for an internal combustion engine employing PCCI combustion, capable of realizing high-stability operation of the engine throughout a large operation area, is provided. The engine control device comprises a fuel supply system which supplies light oil or mixed fuel containing light oil to the engine, a gas supply system which supplies hydrogen to the engine, and a required premixed gas calculating unit which previously stores and uses multiple combustion waveforms (changing depending on hydrogen addition concentration) as data. The required premixed gas calculating unit selects one of the combustion waveforms so as to achieve high thermal efficiency depending on the status of the engine and determines the hydrogen addition concentration (addition concentration of the hydrogen to be supplied to the engine) corresponding to the selected combustion waveform, by which the generation of PM and NOx can be reduced while also improving the thermal efficiency of the engine.

Abstract: A control device for a premixed charge compression ignition (PCCI) internal combustion engine is provided, capable of stable operation over a wide operating range. The control device of an engine 1 comprises: a fuel supply means 20 of supplying the main fuel to the engine 1; an hydrogen supply means 30 of supplying reformed gas containing hydrogen; a fuel supply control unit 41 of controlling an injection timing and an injection period of the main fuel supplied from the injector 22 of the fuel supply means 20 based on the PCCI combustion condition of the engine 1; and a hydrogen supply control unit 42 of controlling an injection timing and an injection period of reformed gas from the gas injector 32 of the hydrogen supply means 30 based on the PCCI combustion condition.

Abstract: A control device for an internal combustion engine employing PCCI combustion, capable of realizing high-stability operation of the engine throughout a large operation area, is provided. The engine control device comprises a fuel supply system which supplies light oil or mixed fuel containing light oil to the engine, a gas supply system which supplies hydrogen to the engine, and a required premixed gas calculating unit which previously stores and uses multiple combustion waveforms (changing depending on hydrogen addition concentration) as data. The required premixed gas calculating unit selects one of the combustion waveforms so as to achieve high thermal efficiency depending on the status of the engine and determines the hydrogen addition concentration (addition concentration of the hydrogen to be supplied to the engine) corresponding to the selected combustion waveform, by which the generation of PM and NOx can be reduced while also improving the thermal efficiency of the engine.

Abstract: A control device for a premixed charge compression ignition (PCCI) internal combustion engine is provided, capable of stable operation over a wide operating range. The control device of an engine 1 comprises: a fuel supply means 20 of supplying the main fuel to the engine 1; an hydrogen supply means 30 of supplying reformed gas containing hydrogen; a fuel supply control unit 41 of controlling an injection timing and an injection period of the main fuel supplied from the injector 22 of the fuel supply means 20 based on the PCCI combustion condition of the engine 1; and a hydrogen supply control unit 42 of controlling an injection timing and an injection period of reformed gas from the gas injector 32 of the hydrogen supply means 30 based on the PCCI combustion condition.

Abstract: The present invention provides a method of efficiently reforming an automotive fuel and producing hydrogen continuously at high selectivity and high yield even under conditions of low A/F ratio in the reforming of the automotive fuel using autothermal reforming, and the like., can efficiently reform and produce hydrogen even under conditions of low A/F ratio by using oxygen-enriched air and water vapor in reforming reactions of an automotive fuel and adjusting the molar ratio of the water vapor with respect to the carbon atoms in the automotive fuel to reform the automotive fuel.

Abstract: The invention provides a method able to remove coke and an unreacted component deposited in an active spot on the surface of a catalyst and restore reduced catalyst activity to efficiently reform fuel for an automobile for a long time. The catalyst activity can be approximately perfectly restored by burning-off the coke and the unreacted component deposited on the surface of the catalyst by using oxygen enrichment air.

Abstract: A method for reforming a diesel fuel with high efficiency under a same condition as that of gasoline or the like to continuously produce hydrogen with high selectivity and high yield is provided. By allowing three catalysts having different functions from one another to be in a composite state and, then, controlling a reforming reaction of the diesel fuel, the diesel fuel is reformed with high efficiency under a same condition as that of gasoline or the like and, accordingly, hydrogen can continuously be produced with high efficiency and high yield.

Abstract: A method of producing a synthesis gas by a reforming reaction of an organic compound with a reforming agent, in which the reforming reaction is performed using nonthermal plasma.

Abstract: A method of producing a synthesis gas by a reforming reaction of an organic compound with a reforming agent, in which the reforming reaction is performed using nonthermal plasma.

Abstract: A process for the production of hydrogen, which includes subjecting a hydrogen-containing compound (with the exception of a nitrogen-containing compound) to a decomposition reaction with nonthermal plasma.