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U.S. Department of Energy
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Properties of shale-oil asphalts from Colorado oil shale

Journal Article · · Proc. Assoc. Asphalt Paving Technol.; (United States)
OSTI ID:7287799
Asphalts from N-T-U crude oil of Green River oil shale at Rifle (Colo.) were prepared by vacuum distillation, propane precipitation, air-blowing, and by thermal cracking of the crude oil, and were then evaluated according to commercial specification tests. A 116 penetration (at 77/sup 0/ F.) asphalt, prepared by vacuum distillation and representing 17 percent of the crude oil, contained 85.02 percent carbon, 10.24 percent hydrogen, 2.82 percent nitrogen, 0.56 percent sulfur, and 1.36 percent oxygen (by difference). A similar asphalt of 173 penetration contained 15 percent asphaltenes, 47 percent resins, and 38 percent oils. The nitrogen contents of these constituents increased with increasing molecular weight; the oils contained 1.1 percent nitrogen, resins 3.4 percent, and asphaltenes 4.5 percent.
OSTI ID:
7287799
Journal Information:
Proc. Assoc. Asphalt Paving Technol.; (United States), Journal Name: Proc. Assoc. Asphalt Paving Technol.; (United States) Vol. 20; ISSN PRPTA
Country of Publication:
United States
Language:
English