Steam reformer

摘要

The steam reformer 1 has a double-cylinder structure having an inner cylinder 2 and an outer cylinder 3 surrounding the inner cylinder 2 . The inner cylinder 2 contains a high-temperature reaction section 6 and an adjacent section 7 being adjacent to the high-temperature reaction section 6 . The high-temperature reaction section 6 contains a mixed-catalyst bed 4 prepared by mixing a steam reforming catalyst and an oxidation catalyst, and an oxygen-containing gas introduction section 5 . A heat transfer suppresser 50 is structured to suppress heat transfer from the high-temperature reaction section 6 to the adjacent section 7 or to the oxygen-containing gas introduction section 5 . With the heat-transfer suppressor 50 , the thermal diffusion from the high-temperature reaction section 6 to peripheral area is effectively suppressed.