Structured catalyst for steam reforming, reforming apparatus provided with structured catalyst for steam reforming, and method for manufacturing structured catalyst for steam reforming

A structured catalyst for steam reforming used for producing, from a reforming raw material containing hydrocarbon, reformed gas containing hydrogen, the structured catalyst comprising:

• a support having a porous structure constituted of a zeolite-type compound;
• and
• at least one catalytic substance present inside the support, wherein
• the support includes channels connecting with each other, and
• the catalytic substance is metal nanoparticles and present at least in the channels of the support, wherein
• the channels include any one of a one-dimensional pore, a two-dimensional pore, and a three-dimensional pore defined by a framework of the zeolite-type compound and a plurality of enlarged pore portions having a diameter different from that of any of the one-dimensional pore, the two-dimensional pore, and the three-dimensional pore,
• the metal nanoparticles are embedded in a respective enlarged pore portion such that a metal nanoparticle is separate from another metal nanoparticle of the metal nanoparticles, and
• the average inner diameter of the channels is less than the inner diameter of the enlarged pore portion.