Hóa dầu - Vacuum tower

Nhóm Mô phỏng Công nghệ Hoá học và Dầu khí Trường Đại học Bách khoa Hà Nội VACUUM TOWER HYSYS Oil-4 Load the Oil-3 and continue Nội dung Vacuum Tower: Column Absorber with Side Draw and Pump Around Feed: ATM Residue 2 Oil-4 Add a Heater In this Cell Enter Connections Name Vac Heater Inlet Atm Residue Outlet Vac Feed Energy Vac Duty Worksheet Pressure, Vac Feed 2.75 kPa (0.4 psia) Temperature, Vac Feed 395oC (740oF) 3 Oil-4 Add a Heater 4 Oil-4 Add an Absorber Column Input Expert Name Vacuum Tower Stages 9 Bottom Stage Feed Vac Feed Top Stage Feed Dummy Overhead Vapour Product Vacuum Ovhd Bottoms Liquid Vacuum Residue Optional Side Draw Name Type Stage LVGO L 2 HVGO L 6 5 Oil-4 Vacuum Tower 6 Oil-4 Vacuum Tower 7 Vavumn Tower Top Stage Pressure 1.350 kPa Bottom Stage Pressure 2.700 kPa Oil-4 Vacuum Tower 8 Vavumn Tower Top Stage Temperature 120oC Bottom Stage Temperature 370oC Oil-4 LVGO & HVGO Specs 9 The Draw Rate for LVGO = 32 m3/h Oil-4 LVGO & HVGO Specs 10 The Draw Rate for HVGO = 90 m3/h Oil-4 Ovhd Vapour Rate Specs 11 Oil-4 The Draw Rate for Vacuum OVHD = 9 kgmole/h Vavumn Tower 12 Oil-4 Add the Specs The Draw Rate for Vacuum OVHD = 9 kgmole/h The Draw Rate for LVGO = 32 m3/h The Draw Rate for HVGO = 90 m3/h DOF = -1 Add the Spec for LVGO PA 13 Oil-4 Add Spec to Column In this cell Enter Name PA 1 Return Stage 1 Draw Stage 2 Rate 132m3/h Duty 14 Add PA 1 - LVGO Oil-4 Delete Stream Dummy - Run 15 Oil-4 Vacuum Tower Volume Flow Rate of Vacuum Residue = ....? Volume Flow Rate of Vacuum Ovhd = ....? Duty of PA 1 = .? 16 Oil-4 Add Pump Around In this cell Enter Name PA 2 PA 3 Return Stage 5 8 Draw Stage 6 9 Rate 265 m3/h 330 m3/h Duty -3.2e7 kJ/h -3.7e7 kJ/h 17 Oil-4 Add Pump Around 18 Oil-4 Vacuum Tower 19 Oil-4 Vacuum Tower 20 Oil-4 Vacuum Tower Volume Flow Rate of Vacuum Residue = ....? Volume Flow Rate of Vacuum Ovhd = ....? Did these values change from before? Why were the Pump Arounds added then? Change the Ovhd Temperature: Top Temperature = 80oC → New Ovhd Gas Flow = .? Save case 21 Oil-4 PFD 22 Oil-4 PFD Column Environment 23 Oil-4 Top Temperature Spec 24 Oil-4 Vacuum Tower 25 Oil-4