Steam reforming catalyst structure, reforming device provided with said steam reforming catalyst structure, and production method of steam reforming catalyst structure

Abstract

A steam reforming catalyst structure which favorably maintains catalyst activity by suppressing aggregation of catalyst particles and which can efficiently generate a reformed gas containing hydrogenfrom a reformed raw material containing hydrocarbons, and a reforming device using said steam reforming catalyst structure, are provided. This steam reforming catalyst structure (1), used to produce areformed gas containing hydrogen from a reformed raw material containing hydrocarbons, comprises a carrier (10) with a porous structure configured from a zeolite compound, and a least one catalytic material (20) present in the carrier (10), wherein the carrier (10) has passages that communicate with each other, and the catalytic material (20) is metal microparticles and is present in at least thepassages (11) in the carrier (10).

Description

technical field [0001] The present invention relates to a catalyst structure for steam reforming, a reformer including the catalyst structure for steam reforming, and a method for producing the catalyst structure for steam reforming. Background technique [0002] Hydrogen is expected as a raw material for new energy, and it is used in stationary fuel cell systems, which are expected to be produced by hydrogen production equipment at hydrogen refueling stations and popularized in homes, small and medium-sized offices, etc., and are being produced at research sites. [0003] For example, steam reforming of natural gas, also known as steam methane reforming (SMR), is the most important method for producing commercially oriented large quantities of hydrogen in addition to hydrogen for industrial ammonia synthesis. In addition, this method is also the cheapest method. In the presence of metal catalysts at high temperatures (700-1100°C), water vapor reacts with methane to produce...

AI Technical Summary

Problems solved by technology

[0009] However, in the reformer as described above, there is a problem that, due to the combustion reaction caused by the partial oxidation reaction, even in the presence of a trace amount of oxygen, the aggregation of the catalyst is caused due to the high temperature history, and in a short time loss of catalytic performance

Among them, the noble metals Rh and Ru have the highest activity, but there is a problem of high cost

In addition, Ni is relatively cheap and is often used industrially, but there is a problem of insufficient activity and heat resistance when only Ni fine particles are used as a catalyst in the existing form.

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