Reforming reactor used in vapor reforming hydrogen production device

Abstract

The invention discloses a reforming reactor used in a vapor reforming hydrogen production device. The reforming reactor comprises a shell, wherein a flue gas input tube, a vapor input tube, a materialconveying tube and a reformed gas output tube are arranged on the shell; the shell is divided into a reforming zone and a heat accumulation zone; a plurality of reaction tubes are arranged inside thereforming zone; the flue gas input tube is communicated with the shell at reaction tube feeding ends; the reformed gas output tube is communicated with discharge ends of the reaction tubes and extends outside the shell; the heat accumulation zone is positioned on one side of reaction tube outlet ends; a plurality of material preheating tubes are arranged inside the heat accumulation zone; the material conveying tubes are communicated with the input ends of the material preheating tubes; the output ends of the material preheating tubes and the vapor input tube are both communicated with feeding ends of the reaction tubes; a flue gas output mechanism is arranged in the heat accumulation zone. The reforming reactor has the advantages that waste heat of a flue gas can be sufficiently utilized, the hydrogen production cost can be reduced, and the reaction speed and the conversion rate can be effectively increased.

Description

technical field [0001] The invention relates to the technical field of steam reforming hydrogen production equipment, in particular to a reforming reactor. Background technique [0002] At present, the structure of the steam reforming hydrogen production unit mainly includes: reforming reactor, carbon monoxide converter, pressure swing adsorber. Among them, the housing of the reforming reactor is provided with several reaction tubes, and the housing is provided with fuel gas delivery pipes, air delivery pipes, water vapor input pipes, material delivery pipes, reformed gas output pipes, fuel gas delivery pipes and air delivery pipes. The conveying pipes are respectively connected with the shell, so that the gas used as fuel and the gas used for combustion are transported to the shell of the reforming reactor, and one end of the shell with an ignition device is installed for combustion and heating, and the water vapor input pipe and the material conveying pipe They are respec...

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Problems solved by technology

[0003] The above-mentioned reforming reactor has the following defects: 1. It needs to use additional fuel gas for heating, which leads to high cost of hydrogen production

2. Fuel gas and combustion-supporting gas need to be ignited in the shell, and an additional ignition device needs to be installed in the reforming reactor, which makes the structure of the reforming reactor complex

[0004] In addition, currently there are high-temperature flue gases produced by many industries, such as coke oven high-temperature flue gas, most of the waste heat of high-temperature flue gas is not fully utilized, which leads to a large loss of heat energy

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