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Hello Everyone: According to their work experiences, what are the requirements of REDUCED CRUDE to be treated in a SIMPLE VACCUM FLASHER?? (heavy metals,sulfur,etc etc etc...any requirement that you know. Thank you very much for your attention

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Hello!!....again. I´m tunning my simulation and I originated a question. Is there a problem if the number of theoretical trays exceeds the number of actual tray?? Regards

Thanks, can you send me esta paper via e-mail, there a problem with the proxy. paulinabarrientos.s@gmail.com

PROPERTIEShttp://files.engineering.com/getfile.aspx?folder=243c9293-2182-4bca-9ff8-48b2fce40aa8&file=properties.jpg

PROPERTIES: NAFTA KEROSENE DIESEL 63.36 °API 47 °API 38.08 °API ASTM D86 °C Flash point 41°C Flash Point 79 °C 0% 38 Freeze Point -51 °C Pour Point -6 °C 10% 69 ASTM D86 °C ASTM D86 °C 50% 101 0% 147 0% 179.3 90% 129 10% 165 10% 225 100% 161 50% 192 50% 274 90% 230 90% 316.3 100% 256 100% 340...

EXCELhttp://files.engineering.com/getfile.aspx?folder=d742e422-c0fa-4b47-a1c7-e04964000243&file=Datos_de_Proceso_Refinería_Gregorio_ABRIL_2015..xlsx

Many many thank you very much for your time. Consider a friend in Patagonia. I worked all day in the simulation,followind your advice. Finally arrive at more realistic results (envelope phase and operating parameters). These are the actual data: PRODUCTION m3/d NAFTA: 570 KERO: 450 DIESEL...

comparison of curves D86http://files.engineering.com/getfile.aspx?folder=d8dbf410-5dd4-45c3-a079-427a68a85c9b&file=D86_Productos_Comparacion_HYSYS-LAB.SIM16.xlsx

Master phase envelopehttp://files.engineering.com/getfile.aspx?folder=c4df7e96-8251-45e2-a1ef-7a36ee24e858&file=Master_phase_envelope_SIM_16.jpg

I did the simulation again with a feed: CRUDO X: 50% date: TBP - API - Viscosity CRUDO Y: 50%: TBP - API - Viscosity a total 2650 m3/d (april average). The result is far from the actual (Cold properties product - T Condenser - T tope - T bottom - D86 HYSYS v.s Lab) Which is the reason this BIG...

you mean the green line, right? This should not be a single straight linehttp://files.engineering.com/getfile.aspx?folder=91a9b360-9f07-4a04-8ead-d4f8cb1c5212&file=master_phase_envelope.jpg

OK.. will try again tested mixtures. I shall guide from phase evelope utility as you mention. Has you a reference picture as it should be that curve? Regards

Not for iterating...I've tried in many many many ways, but there is something I'm not seeing. H E L P http://files.engineering.com/getfile.aspx?folder=575fde61-f777-4ae1-8892-a092d42b526d&file=SIM_15.4.rar

Thanks for the advice, I think it's exactly the mistake I make. Then keep the characterization as is.

Because, feedin to the plant is a mix of many crude in different percentage. Only I have the characterization of two raw(I could not get more because they must ask at an external laboratory). These crudes are: CRUDO X CRUDO Y CRUDO X, its 35% of feed and CRUDO Y its 1% of feed. Of these crude...

P/A zone its nutter rings

Thank you very much for your support, needed advice from someone with experience. I realized my mistake.'ll add the dishes in the areas mentioned. Many thank you very much.....hopefully converges me

Real Trays: 24 Reflux Return: 1 Kero Draw: 7 Diesel Draw: low the Packing Bed, 17 tray. Zona Flash: Mellapack, (18-19-20) Crude Feed: up tray 21 (20) Stripping Reduced Crude: 21-22-23-24 (page 1)...

I'll add another theoretical plate above de flash zone according to your advice...hopefully converges me