TY  - DATA
AU  - Srinivasan,Sridhar
AU  - Buchheim,Gerrit
ED  - Congreso Latinoamericano y del Caribe de Refinación (6to. : 2022 jun. 1-3 : Buenos Aires)
TI  - A DIGITALIZED CORROSION PREDICTION AND QUANTIFICATION FRAMEWORK FOR IMPROVING REFINERY UNIT RELIABILITY AND PROFITABILITY
PY  - 2022///
CY  - Buenos Aires
PB  - Instituto Argentino del Petróleo y del Gas, IAPG
N2  - The need to work with opportunity crudes in refinery unit operations, a business imperative of crude blending and crude slate optimization, has meant that operators face substantial risk of corrosion damage in the crude distillation unit (CDU), vacuum distillation unit (VDU), associated equipment and side stream piping. Using Total Acid Number (TAN) and Sulfur content in crudes as proxies for Naphthenic Acid and Sulfidic corrosion in refinery operations has often led to conservative, cost-inefficient decision making in terms of crude selection, crude processing and unit metallurgy specifications. Alongside, the refining industry has consistently sought, for reasons of improved economics and ROI, to move in the direction of processing heavier, high Sulfur, high acid opportunity crudes. Such a directional shift has been a consequence of depleting reserves and declining sweet crudes. Processing of low-cost opportunity crudes as an integral part of crude-slate planning has become a business necessity to improve refining margin. Based on decades of fundamental crude parametric analyses and corrosion research, Becht has developed the industry’s first ever simultaneous naphthenic acid and sulfidic corrosion prediction and analysis software framework, CorrExpert®-Crude1 , which is foundational to quantifying naphthenic acid and sulfidic corrosion correlated with unit process data and operating data. The model seamlessly connects unit process / operating data with unit metallurgy to predict metal loss rates and remaining life for critical CDU/VDU piping exposed to hot oil conditions. This cloud-based application enables realization of the business need to work with opportunity crudes without risking corrosion damage to CDU / VDU equipment. Leveraging crude assay data and information available through process historian, the framework can also facilitate enforcement of appropriate Integrity Operating Windows (IOW) through utilization of corrosion rate as a dynamic IOW parameter alongside other key operating variables such as TAN, Sulfur and Temperature. The system’s ability to seamlessly collaborate with other platforms including crude blending and supply chain planning applications such as Haverly®2 and PIMS®3 has important implications for creation of a digitalized solution integrating crude assay with automated predictive analytics en route to achieving crude processing flexibility, improved reliability and enhanced profitability
UR  - https://biblioteca.iapg.org.ar/ArchivosAdjuntos/CongresoRefinacion2022/091.pdf
ER  -