Steam reformer furnace, and method for the same

摘要

A reformer furnace (1), comprising: at least one triple conduit assembly (200), including a flue gas conduit (220) enclosing a reaction conduit (240) enclosing a product gas conduit (260), wherein: the reaction conduit (240) extends between a lower end (244) defining a reaction gas inlet (245), and a closed upper end (242); the product gas conduit (260) extends between an upper end (262) defining a product gas inlet (263), and a lower end (264) defining a product gas outlet (265); the flue gas conduit (220) extends between an upper end (222) defining a flue gas inlet (223), and a lower end (224) defining a flue gas outlet (225); and an annulus (250) between the reaction conduit (240) and the product gas conduit (260) comprises a catalyst (252); a combustion chamber (100) that encloses an approximate upper half (226, 246, 266) of the at least one triple conduit assembly (200) while an approximate lower half (228, 248, 268) thereof resides outside of and below the combustion chamber, and that includes at least one burner (110), disposed inside of the combustion chamber and outside of the flue gas conduit (220), such that the approximate upper half (226) of the flue gas conduit substantially shields the reaction conduit (240) from direct burner flame heat radiation and impingement.

主权项

1. A reformer furnace (1), comprising:
at least one triple conduit assembly (200), including a flue gas conduit (220) enclosing a reaction conduit (240) enclosing a product gas conduit (260), wherein:
the reaction conduit (240) extends between a lower end (244) defining a reaction gas inlet (245), and a closed upper end (242);the product gas conduit (260) extends between an upper end (262) defining a product gas inlet (263), and a lower end (264) defining a product gas outlet (265);the flue gas conduit (220) extends between an upper end (222) defining a flue gas inlet (223), and a lower end (224) defining a flue gas outlet (225); andan annulus (250) between the reaction conduit (240) and the product gas conduit (260) comprises a catalyst (252); a combustion chamber (100) that encloses an approximate upper half (226, 246, 266) of the at least one triple conduit assembly (200) while an approximate lower half (228, 248, 268) thereof resides outside of and below the combustion chamber, and that includes at least one burner (110), disposed inside of the combustion chamber and outside of the flue gas conduit (220), such that the approximate upper half (226) of the flue gas conduit substantially shields the reaction conduit (240) from direct burner flame heat radiation and impingement, wherein the combustion chamber (100) is at least partly defined by a lower wall (102) through which the approximate upper half (226, 246, 266) of the at least one triple conduit assembly (200) protrudes into the combustion chamber,
and wherein the burner (110) is an upward-flaming burner, disposed on said lower wall (102).