Revamps 2023 Issue

Outcomes Apart from the benefit of the radiant efficiency increase (fuel savings or capacity increase potential), the process tubes will be protected from corrosion and oxidation, thus extending the tube lifetime and achieving reliability targets. It is expected that the rapid scale/oxidation trend that occurs in heater process tubes after conventional sand - blasting will not be observed during the next two planned maintenance periods after the application, so it will not cause any production (feed rate or RON) bottlenecks. Moreover, the next planned maintenance is expected to be shorter, minimising downtown and turnround costs since tube abrasive sandblasting is not needed. With the application of the high emissivity coating on the interheaters, the environmentally friendly approach of the refinery and IGS has also been fulfilled. This approach can be expressed in the project’s impact on GHG emissions and the energy intensity index (EII). The project allowed the refinery to decrease fuel con - sumption by 4.7 Gcal/hr while keeping the same condi - tions for the rest of the unit. This change reflected a CO2 gas emission drop of 9,600 MTPA. Regarding EII, an improvement of 0.31 was reported after the application (see Table 3 ). Cetek coatings application brought an immediate radiant efficiency gain, as expected since a post-project analysis corresponded with a pre-project technical evaluation. The

EII and GHG assessment results

Parameter

Value

UOM Gcal/h MWh

Δ Fuel consumption Δ Energy equivalent Δ EII equivalent GHG reduction Wood equivalent

4.7 5.5

0.31

EII

9,600

MTPA Units

25,000

Table 3

refinery has an option to save fuel and the throughput increase option might be considered during high-demand periods. As with all Cetek applications, the unit’s perfor - mance will be followed for the life of the coatings, and IGS engineers will undertake IR thermography inspections at regular intervals.

Platforming is a mark of Honeywell UOP’s proprietary catalytic reform - ing process.

Diyar Kiliç Mert is Process Technical Leader at Tüpraş Izmit Refinery. Alp Zeren i s Senior Engineer at Tüpraş Izmit Refinery. Anton Korobeynikov is Senior Process Engineer at Integrated Global Services (IGS). Sergei Merchev is Business Development Director at Integrated Global Services (IGS).

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