| Abstract
| - To develop an accurate and rapid evaluation of distillation yield curves of heavy crude oils,simulated distillation by gas chromatography (SIMDIS GC) curves were performed for the firsttime in Mexican Istmo and Maya crude oil samples. In this study, we found large uncertaintiesusing ASTM D-5307, and some improvements to the technique were applied as alternatives tomeasure the assay distillation. These results were compared with the curves obtained from thephysical distillation method outlined in ASTM Method D-2892, showing good agreement. Thestatistical analysis of the SIMDIS data is addressed as a good alternative for measuring theseheavy crude oils.
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