Reformer with low fired duty per unit of feedstock.

摘要

A reformer furnace (110) and method for reforming hydrocarbons are described. The feed stream (107) is heated in the presence of reforming catalyst (145) both in a tube convection portion (125) and a radiant section (122) of the reformer furnace (110). The catalyst tubes (140) may have and extended surface (150) in the tube convection portion (125) to enhance heat transfer within the convection portion (125).