| 摘要 |
A catalytic reactor consists of a plurality of thin tray-like metal sheets (12, 13) each with a peripheral rim (14) and arranged as a stack to define first gas flow channels between adjacent sheets, alternating with second gas flow channels between adjacent sheets, so as to ensure good thermal contact between gases in the first and the second gas flow channels. Each sheet (12) and (13) also defines at least four apertures (16, 17, 18, 19) for flow of gases, and tubes (20) and (21) seal apertures in one sheet to corresponding apertures in the adjacent sheet. The gas flows through the channels may be guided by corrugations (15), and are preferably in countercurrent in adjacent channels. Appropriate catalysts are coated onto the sheets (12) and (13) in the two gas flow channels. The reactor may be used in compact plant for steam/methane reforming |
