Petroleum crude slate effect on H-Oil performance
by Dicho Stratiev; Ivelina Shishkova; Ilian Kolev; Dobromir Yordanov; Vesislava Toteva
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 28, No. 3, 2021

Abstract: Sixteen petroleum crudes and an imported atmospheric residue originating from Russia, Azerbaijan, Greece, Italy, Kuwait, Iraq, Iran, Saudi Arabia, Tunisia, and the USA have been processed in the LUKOIL Neftohim Burgas (LNB) refinery, and their effect on the ebullated bed vacuum residue H-Oil hydrocracking (EBVRHC) performance has been evaluated. The vacuum residue conversion in the LNB H-Oil EBVRHC varied between 55% and 82% depending on the crude blend processed in the LNB refinery. It has been established that among all vacuum residue SARA fractions during EBVRHC, the resins have the highest conversion, followed by the naphtheno-aromatics while the saturates show the lowest conversion. Depending on the petroleum crude origin the behaviour of the most problematic VR asphaltene fraction has been found to be different suggesting distinct propensity of the asphaltenes from the different petroleum crudes to participate in radical recombination reactions leading to the formation of additional amounts of core-condensed asphaltenes. [Received: July 6, 2020; Accepted: August 19, 2020]

Online publication date: Sat, 30-Oct-2021

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