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公开(公告)号:US10139387B2
公开(公告)日:2018-11-27
申请号:US14818623
申请日:2015-08-05
Applicant: ExxonMobil Research and Engineering Company
Inventor: Roger Grant Gaughan , David John Abdallah , Dennis Harold Hoskin , Manuel S. Alvarez , Christopher J. Wolfe
IPC: G01N29/036 , G01N33/22 , G01N29/02 , G01N29/44
Abstract: Methods are provided for characterizing the stability of a distillate fraction using a quartz crystal microbalance apparatus, such as a distillate fraction derived at least in part from a pre-refined crude oil. A sample can be aged for an aging period in a quartz crystal microbalance apparatus, and a frequency value for the sample in the quartz crystal microbalance apparatus can be determined before and after the aging period to determine a frequency difference. This frequency difference can be correlated directly with the ability of a jet fuel fraction to satisfy a stability test standard, such as a jet fuel breakpoint stability. The methods can also include using a temperature profile during characterization that can reduce or minimize operator error during the characterization.