Paraphinic & Naphthenic Crude Comparison
Paraphinic & Naphthenic Crude Comparison
(OP)
Hello to members and visitors, I have one rather general question to ask, but I'm interested in every detail I can find out.
The question is about pour point values of vacuum distillation unit products: LVGO, HVGO, TGO (or stripped part of vacuum resid) and vacuum residue itself, from different crude oils - paraffinic and naphthenic one. Distillates from paraffinic crude are generally more "sticky", as we have found when processing these kinds of crude - condensers would become cold and filled with condensate, thereby dramatically reducing vacuum level in vacuum stripper and even promoting microbial growth in ejector system. I'm especially interested in ranges of pour point values (as a function of crude & distillate densities, P-N-A ratio, ATSM distillation, etc.)
Happy time and thanks in advance,
MaNaTMoS

The question is about pour point values of vacuum distillation unit products: LVGO, HVGO, TGO (or stripped part of vacuum resid) and vacuum residue itself, from different crude oils - paraffinic and naphthenic one. Distillates from paraffinic crude are generally more "sticky", as we have found when processing these kinds of crude - condensers would become cold and filled with condensate, thereby dramatically reducing vacuum level in vacuum stripper and even promoting microbial growth in ejector system. I'm especially interested in ranges of pour point values (as a function of crude & distillate densities, P-N-A ratio, ATSM distillation, etc.)
Happy time and thanks in advance,
MaNaTMoS

RE: Paraphinic & Naphthenic Crude Comparison
Hope this helps. Please let me know if you need any more specifics.
RE: Paraphinic & Naphthenic Crude Comparison
Crude assays and API tables represent good source for this kind of information, but I was looking for something else, actually. Are there any ways to calculate and predict pour point values for different products/fractions, based on API gravity/ASTM distillation, KW-factor, viscosity, etc.? I'm asking this in order to find out possible opportunities and limits for blending different crude oils, without risk of plugging condensate draining system in VDU when processing these crude oil blends?
RE: Paraphinic & Naphthenic Crude Comparison
they will probably not tell you how they calculate, but perhaps it is worth a try to ask.
hth,
chris
RE: Paraphinic & Naphthenic Crude Comparison