Abstract:
PROBLEM TO BE SOLVED: To provide a reactor and a method for carrying out gaseous phase endothermic reaction in the reactor.SOLUTION: The present invention provides a method for carrying out gaseous phase endothermic reaction in a reactor, in which a reactant gas is introduced into a reactor via a gas injection unit and distributed uniformly into a heating zone by using a gas distribution unit, and the reactant gas is heated to an average temperature of 500 to 1,500°C in the heating zone by using a heating element and then moved to a reaction zone, and the reactant gas reacts in the reaction zone to produce a formed gas and the formed gas is discharged outside of the reactor via a gas discharge unit. And, the subject matter of the present invention is that the heat evolution by the heating element is controlled by a temperature measurement in the reaction zone and for this reason there exist at least two temperature sensors in the reaction zone. An reactor for carrying out said method is also provided.
Abstract:
[Problem] To provide a gas mixing device capable of promptly mixing a combustible gas with a combustion supporting gas with its simple configuration, and a synthetic gas manufacturing apparatus using the device. [Means for Resolution] In a gas mixing device which supplies a combustible gas and a combustion supporting gas from flow channels of a double pipe including an inner pipe 21 and an outer pipe 22 and mixes the gases, a first guide member 23 guides the gas, flowing out from a gas outflow port on one end side of the inner pipe 21, outward, and a second guide member 24 is formed in an annular shape along an inner peripheral wall of the outer pipe 22 of the second guide member 24 so that the inner peripheral portion is located closer to the upstream side than the outer peripheral portion and the inner peripheral portion is located closer to the center than the outer peripheral portion of the first guide member 23. In addition, a third guide member 25 is provided so as to face a region surrounded by the second guide member 24.
Abstract:
PROBLEM TO BE SOLVED: To provide a carbon nanotube producing apparatus and a carbon nanotube producing method capable of forming carbon nanotubes having a high density and a uniform in-plane CNT height on a substrate.SOLUTION: There is provided a carbon nanotube producing apparatus comprising a reaction chamber 2 that accommodates a substrate 3 that forms carbon nanotubes and a reactive gas supply mechanism for supplying a reactive gas 4 to the substrate 3 accommodated in the reaction chamber 2, in which the reactive gas supply mechanism has two or more shower plates 11 and 12 having a plurality of gas ejection holes, the shower plates being overlappingly arranged so that the reactive gas 4 passes therethrough in order and the reactive gas 4 is supplied to a carbon nanotube forming face of the substrate 3 and the shower plates 11 and 12 are arranged so that the ejection holes of the shower plates 11 and 12 that are adjacent to each other do not overlap each other in a gas ejection direction.
Abstract:
PROBLEM TO BE SOLVED: To provide a gas mixing apparatus capable of quickly mixing a combustible gas and a combustion supporting gas by a simple apparatus composition and to provide a synthesis gas producing apparatus etc. using the apparatus. SOLUTION: In the gas mixing apparatus for supplying the combustible gas and the combustion supporting gas from each flow passage in a double pipe consisting of an inner tube 21 and an outer tube 22 and for mixing these, a first guide member 23 guides the gas flowed out from a gas outflow port of one end side of the inner tube 21 to outside, a second guide member 24 is annularly provided along the inside wall of the outer tube 22 and also the inner peripheral part is located in the upstream side than the outer peripheral part, and the inner peripheral part is positioned in the center side than the outer peripheral part of the first guide member 23. A third guide member 25 is provided so as to oppose to the region surrounded by the second guide member 24. COPYRIGHT: (C)2011,JPO&INPIT