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In order to separate a liquid feed mixture into its components, refineries use a distillation process to separate crude and determine key characteristics of their feed. These characteristics significantly impact the safety and performance of end-products, particularly with fuels and solvents. The boiling range gives information on the composition, the properties, and the behavior of the fuel during storage and use.
ASTM D86 is the historical test method to determine the boiling range of a petroleum product. It determines the boiling range by performing a simple batch distillation. ASTM published the ASTM D975-12, which includes an alternate distillation method, ASTM D7345, which uses the process of microdistillation to provide fast results using small sample volume.
This presentation discusses the benefits of using a process application of the ASTM D7345 test method to provide real, online distillation analysis to prevent product giveaway and reprocessing, and to meet tight blending specifications at the most reasonable cost. In addition, a case study with a major Brazilian refinery that evaluated this instrument will be discussed.
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