Abstract: The present invention provides a direct-fired supercritical carbon dioxide power generation system and a power generation method thereof, the system comprising: a combustor for burning hydrocarbon fuel and oxygen; a turbine driven by combustion gas discharged from the combustor; a heat exchanger for cooling combustion gas discharged after driving the turbine, by heat exchange with combustion gas recycled and supplied to the combustor; and an air separation unit for separating air to produce oxygen, wherein a portion of the combustion gas discharged after driving the turbine is branched before being introduced to the heat exchanger and is supplied to the air separation unit.

Abstract: The present invention provides a direct-fired supercritical carbon dioxide power generation system and a power generation method thereof, the system comprising: a combustor for burning hydrocarbon fuel and oxygen; a turbine driven by combustion gas discharged from the combustor; a heat exchanger for cooling combustion gas discharged after driving the turbine, by heat exchange with combustion gas recycled and supplied to the combustor; and an air separation unit for separating air to produce oxygen, wherein a portion of the combustion gas discharged after driving the turbine is branched before being introduced to the heat exchanger and is supplied to the air separation unit.

Abstract: The present invention relates to a combustion device 100 for burning refractory hazardous gases and a burning method for the combustion device. More particularly, the combustion device 110 for burning refractory hazardous gases, which is provided in a scrubber system 1 for burning waste gases, the combustion device 110 includes: a first porous body 141; a second porous body 142; and an igniter for forming a flame surface 143 at the interior of the combustion device 110, wherein the flame surface 143 formed by the igniter is located between the first porous body 141 and the second porous body 142, and so as to form the flame surface 143, at least one of the first porous body 141 and the second porous body 142 is moved to conduct excess enthalpy combustion.

Abstract: The present invention relates to a combustion device 100 for burning refractory hazardous gases and a burning method for the combustion device. More particularly, the combustion device 110 for burning refractory hazardous gases, which is provided in a scrubber system 1 for burning waste gases, the combustion device 110 includes: a first porous body 141; a second porous body 142; and an igniter for forming a flame surface 143 at the interior of the combustion device 110, wherein the flame surface 143 formed by the igniter is located between the first porous body 141 and the second porous body 142, and so as to form the flame surface 143, at least one of the first porous body 141 and the second porous body 142 is moved to conduct excess enthalpy combustion.

Abstract: Disclosed is an eccentric jet type low NOX oxyfuel burner for gaseous fuel, which freely controls the shape of a flame and a combustion characteristic by using an eccentric injection nozzle. The disclosed oxyfuel burner reduces an optimum mixture rate forming area in comparison with a conventional coaxial-injection, and enlarges a thin fuel area and an excessive fuel area so that partial generation of a flame with a high temperature is restricted. Therefore, an amount of generated nitrogen oxide can be minimized and the stability of a flame can be significantly improved. Particularly, the oxyfuel burner combines a fuel nozzle and an oxygen combustion nozzle having different diameters so as to use them so that it is very simple and practical to design and manufacture the oxyfuel burner.