To obtain an annular reactor which solves the problems of fixing and gas sealing of an annular molded catalyst or columnar catalyst in the conventional annular reactor, is easily constructed, prevents gas channeling, and is enhanced in catalyst performance, its preparing method and sealing method.
The annular reactor constituted by arranging the annular molded catalyst between a cylindrical inner tube and a cylindrical outer tube concentric with the cylindrical inner tube comprises arranging a metallic C-shaped ring having a notch at least at one point among (a) a gap between the lower surface of the annular molded catalyst and the outer periphery of the inner tube, (b) a gap between the lower surface of the annular molded catalyst and the inner periphery of the outer tube, (c) a gap between the upper surface of the annular molded catalyst and the outer periphery of the inner tube, and (d) a gap between the upper surface of the annular molded catalyst and the inner periphery of the outer tube, and its preparing method and its sealing method are provided.
COPYRIGHT: (C)2006,JPO&NCIPI
Jun Komiya
Nishizaka Shoko
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