EPCC Additional Hot Oil Boiler and Regeneration Gas HE as part of Trouble Shooting Dehydration Unit at PT ARSynergy Resources.

The existing regeneration gas heater has a major issue of very low thermal performance, for the required (design) duty to heat regeneration gas from 120^oF to 500^oF, the factual is only from 120^oF to max 275^oF by the same condition of hot oil (P, T, Flow).

CONTRACTOR indicates and suspected failure or damage in the Sheel-side. The hypothetical root cause due to the HE type BFU, as well as high-pressure gas in the shell, was the event in which high-pressure drop across these long baffles, causing bending and loss-of-sealing between shell-pass, hence the cold-gas inlet (bottom) not fully routing to right-side of the shell first then to the left-upper shell, but instead going directly upward from bottom to leakage-baffle to outlet nozzle without sufficient heat-transfer because the regeneration gas flow to E-408 shall be 8 mmscfd instead of 6.11 mmscfd. CONTRACTOR chooses the design of new heater E-408B/C.