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U.S. Department of Energy
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Refining and upgrading of synfuels from coal and oil shales by advanced catalytic processes

Technical Report ·
OSTI ID:6894171
This report gives results of our current studies on refining of integrated two-stage liquefaction (ITSL) process product to distillate fuels. We made a 2385-hr second-stage hydrocracking pilot plant run in which hydrotreated ITSL oil was cracked to extinction over ICR 202 catalyst. It included series of tests to determine the quantity and quality of products produced at a variety recycle cut points (350/sup 0/F, 400/sup 0/F, 450/sup 0/F, 500/sup 0/F, 525/sup 0/F, and 550/sup 0/F). At 350/sup 0/F, the entire liquid product is naphtha. At higher cut points, products include a combination of naphtha and jet fuel. The smoke point of the jet fuel fraction will be of particular interest. Analytical results at the higher cut points are incomplete. We are studying the effect of ITSL syncrude end point on the severity necessary for hydrotreating to distillate products. Lummus provided Chevron with an additional barrel of ITSL process product (Illinois No. 6, Burning Star Mine) with an end point of about 800/sup 0/F to serve as feed. A 1080-hydrotreating pilot plant test was made with this feed and ICR 106 catalyst at 0.5 LHSV and 2300 psia hydrogen partial pressure. The new feed is clearly somewhat harder to upgrade than the lower end point feed previously tested. But it appears we can make specification jet fuel at these conditions. All of the analyses are not complete, though. 18 tables and 1 figure.
Research Organization:
Chevron Research Co., Richmond, CA (USA)
DOE Contract Number:
AC22-76ET10532
OSTI ID:
6894171
Report Number(s):
DOE/ET/10532-T18; FE-2315-102; ON: DE84012123
Country of Publication:
United States
Language:
English