S-Oil Formerly Ssangyong

S-Oil and ExxonMobil have described their joint work on modifying a fuels hydrocracker to make group III lubes, in which the bottoms stream was fractionated, dewaxed using MSDW2 hydroisomerization technology followed by aromatic saturation with ExxonMobil s MAXSAT catalyst.44 The properties of the base stocks are shown in Table 7.35, and like SK Corporation s products, these also meet U.S. food-grade white oil specs. 

Pritzger, Production of Synthetic Lubricating Oils by Hydrogenation Reactions, Petroleum Processing 2 205-208 (1947). 

Haslam and W. C. Bauer, Production of Gasobne and Lubricants by Hydrogenation, SAE Journal XXVIII 307-314 (1931). 

Kramer, B. K. Lok, R. R. Krug, and J. M. Rosenbaum, The Advent of Modern Hydroprocessing—The Evolution of Base Oil Technology—Part 2, Machinery Lubrication, May 2003. 

Angula, M. Gasca, J. L. Martinez-Cordon, R. Torres, A. Billon, M. Derrien, and G. Parc, IFP Hydrorefining Makes Better Oils, Hydrocarbon Processing 47(6) 111—115 (1968). 

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The world s two largest group III producers at the time this was written are both located in South Korea, SK Corp (14,000 bpd) at Ulsan and S-Oil, formerly Ssangyong (9,000 bpd), at Onsan.41 Both operate very large refineries (more than 1,000,000 and 525,000 bpd, respectively) and both employ fuels hydrocrackers to generate waxy high VI intermediates which are subsequently fractionated into waxy lube streams, dewaxed, and hydrofinished. 

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