The Chemical Composition of Solubility Classes from Athabasca Bitumen Pitch Fractions
作者： S. Zhao , L. S. Kotlyar , J. R. Woods , B. D. Sparks , J. Gao
关键词: Supercritical fluid extraction 、 Oil sands 、 Hildebrand solubility parameter 、 Organic chemistry 、 Pentane 、 Asphalt 、 Chemical engineering 、 Residuum 、 Chemistry 、 Solubility 、 Chemical composition
摘要: Abstract As the Canadian supply of light crudes diminishes, refineries have necessarily been required to deal with more difficult process oilsands bitumen and heavy oils. Nearly 50% consists a residuum that cannot be easily upgraded. A better understanding chemistry this material is key achieving overall optimal yields commercially useful products. In recent years, application supercritical fluid extraction (SCFE) pentane has successful in separating into number narrow fractions based on solubility parameters molecular weight. combination advanced characterization techniques approach proved elucidating complexity chemistry. To provide further insights pitch we now extend established classes (saturate, aromatics resins) derived from fractions, or front-cuts, separated during SCFE pen...
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