Hóa dầu - Atmospheric crude column

Nhóm Mô phỏng Công nghệ Hoá học và Dầu khí Trường Đại học Bách khoa Hà Nội ATMOSPHERIC CRUDE COLUMN HYSYS Oil-3 Load the Oil-2 and continue Column Product Specs Trở lại Basis Environment, vào Oil Manager Cut/Blend tab → chọn mẫu dầu thô rồi bấm phím View Vào Distribution Plot tab Sử dụng Straight Run cut option, điền số liệu vào bảng 2 Component Volume, % Volume in 100,000 bbl Off Gas + Lt St Run Naphta Kerosene Diesel (Light & Heavy) AGO Residue Oil-3 Add Column Steam Feed The Composition of H2O for all steam streams is 1.0 Mass Fraction 3 Temperature Pressure Flow Rate Btm Steam 190oC (375oF) 1035 kPa (150 psia) 3400 kg/h (7500 lb/h) Oil-3 Atmospheric Crude Column Sử dụng Refluxed Absorber Crude Column always require a water stream off the Condenser 4 Oil-3 Atmospheric Crude Column Input Expert Name Atms Tower Stages 29 Feed Inlet / Stage ATM Feed / 28 Bottom Inlet / Stage Btm Steam / 29 Condenser type Partial Overhead Vapour Product Off Gas Overhead Outlet Naphtha Water Draw Waste Water Bottoms Liquid Outlet Atm Residue Condenser Energy Stream Cond Duty 5 Oil-3 Input Expert 6 Condenser Pressure 140 kPa Bottom Stage Pressure 230 kPa Condenser Pressure Drop 60 kPa Oil-3 Input Expert Condenser Temperature Est 40oC Top Stage Temperature Est 120oC Bottom Stage Temperature Est 340oC 7 Oil-3 Input Expert 8 Vapour Rate 0 Flow Basis Molar Oil-3 Distillate Rate Khai báo Distillate Rate 150 m3/hr (thay đổi flow rate basis của spec) Active: Vap Prod Rate spec = 0 → Condenser will operate as total condenser Run → Report 9 Flow Rate of Naphta 1246 kmol/h Flow Rate of Residue 1569 kmol/h Flow Rate of Wastewater 187.3 kmol/h Flow Rate of Off Gas 3.645e-5 kmol/h Oil-3 Monitor 10  Active: Spec values are fixed  Inactive: Spec values that program can adjust in oder to converge the column Oil-3 Adding Side Stripers AGO 11  Side Ops tab –Side Striper → Add  Product Stream Spect: AGO Prod 30m3/h Oil-3 Adding Pump Arounds AGO 12  Side Ops tab → Pump Arounds → Add  Install Oil-3 Adding Pump Arounds AGO 13  Spec Type: Flow Rate  Spec Value: 200 m3/h (30,000 BPD) Oil-3 14  Spec Type: Duty  Spec Value: -3.7e7 kJ/h (-3.5e7 BTU/hr) Oil-3 Adding Pump Arounds AGO Worksheet tab – AGO Steam Design tab → Monitor: DOF = 0 Reset. Run Save case! 15 In this cell Enter Temperature 150oC (300oF) Pressure 350 kPa (50 psia) Mass Flow 1150 kg/h (2500 lb/h) Composition 1.0 Oil-3 Adding Diesel Side Stripper In this cell Enter Name Diesel SS Draw Stage 17 Return Stage 16 Product Stream Diesel Prod Product Rate 130 m3/h (19250 BPD) Configuration Stream Striper Steam Feed Diesel Steam 16 Oil-3 Adding the Diesel Side Stripper 17 Product Stream: Diesel Prod Draw Spec: 130 m3/h (19250 barrel/day) Oil-3 Adding Diesel Pump Around In this cell Enter Name Diesel PA Draw Stage 17 Return Stage 16 Flow Rate 200 m3/h (30000 BPD) Duty -3.7e7 kJ/hr (-3.5e7 BTU/h) 18 Oil-3 Adding Diesel Pump Around 19 Oil-3 Worksheet tab – Diesel Steam 20 In this cell Enter Temperature 150oC (300oF) Pressure 350 kPa (50 psia) Mass Flow 1150 kg/h (2500 lb/h) Composition 1.0  Design tab → Monitor: DOF = 0  Run Oil-3 Adding Diesel Side Ops 21 Oil-3 Adding Kerosene Side Stripper In this cell Enter Name Kerosene SS Draw Stage 9 Return Stage 8 Product Stream Kerosene Prod. Product Rate 62 m3/h (9300 BPD) Configuration Reboiler Boil up Ratio 0.75 22 Oil-3 Adding Kerosene Side Stripper 23  Boil Up Ratio: 0.75  Product Stream: Kerosene Prod  Draw Spec: 9300 barrel/day (62 m3/h) Oil-3 Adding Kerosene Pump Around In this cell Enter Name Kerosene PA Draw Stage 2 Return Stage 1 Flow Rate 330 m3/h (50000 BPD) Duty -5.8e7 kJ/hr (-5.5e7 BTU/h) 24 Oil-3 Adding Kerosene Pump Around 25  Flow Rate: 330 m3/h  Duty: -5.8e7kJ/hr (-5.5e7 BTU/hr) Oil-3 Adding the Kerosene Side Ops 26 Oil-3 Run Report Save case! Adding the Kerosene Side Ops Flow Rate of Naphta 1248 kmol/h Flow Rate of Residue 645.3 kmol/h 27 Oil-3 Energy Stream for the Column Tháp chưng không có Reboiler → Cần thêm dòng năng lượng cấp nhiệt cho đáy tháp PFD → Add Energy Stream: name Trim Duty Không cần khai báo Duty cho dòng này Column Property View → Design tab → Connection page → add Trim Duty, stage 28 28 Oil-3 Energy Stream for the Column Specs page → Bấm phím Add trong nhóm Column Specs Chọn Column Liquid Flow trong danh sách → Add Nhập Spec Value 23 m3/h → Active 29 Oil-3 Energy Stream for the Column Change Kerosene SS Boil Up Ratio spec: estimate only Add Column Duty: 7.9e6 kJ/h (7.5e6 Btu/h) → Active Monitor: DOF = 0 Run 30 Oil-3 Energy Stream for the Column 31 PFD – Atmospheric Crude Column 32 Oil-3 Atmospheric Crude Column 33 Oil-3 Exploring with the Simulation Maximizing the Naphtha Product Column is solved using Product Flow Rate Specs Flow Rate Specs:  Dễ hiểu quá trình chưng cất dầu thô  Nhưng không linh hoạt khi xác định tháp chưng Using Cut Point Specs:  Xác định sản phẩm theo Cut Point Specs  Mở rộng khoảng thu sản phẩm 34 Oil-3 Exploring with the Simulation Use Flow D86 Cut Point Temperature, oC BP Curve m3/h 5% 95% Naphtha 150 Kerosene 62 Diesel 130 AGO 30 35 Oil-3 Exercise 1 Maximizer the Production of Full Range Naphtha 36 Product Specifications Flow, m3/h Naphtha 95% D86 Naphtha 190oC Kerosene 95% D86 Kerosene 245oC Diesel Flow 130 AGO Flow 30 Oil-3 Exercise 2 Maximizer the Production of Full Range Kerosene 37 Product Specifications Flow, m3/h Naphtha 95% D86 Naphtha 162oC Kerosene 95% D86 Kerosene 275oC Diesel 95% D86 Diesel 330oC AGO Flow 30 Oil-3 Exercise 3 Maximizer the Production of Full Range Diesel 38 Product Specifications Flow, m3/h Naphtha 95% D86 Naphtha 162oC Kerosene 95% D86 Kerosene 220oC Diesel 95% D86 Diesel 360oC AGO 95% D86 AGO 415oC Oil-3