This work evaluates remaining life of catalyst tubes of a reformer furnace due to achieving end of design life (100.000 hours). The main damage mechanism in this case is creep, hence the analysis was based in the procedure of API-579/ASME FFS-1 - Part 10 (2007). The tubes material is the alloy HP modified, which there isn't enough creep properties data on literature. Therefore, these properties have been defined based on experimental data from hot tensile and creep tests. The results showed that is not necessary to replace the tubes immediately and the remaining life is about 22 years operating at design temperature.
Reformer furnace; modified HP; creep
