Improvements in the RFCC processFeb 22nd. 2011 I. Outline of S-OIL Refinery II. Improvements of RFCC after 2010 T/A 1. Introduction of O2 Enrichment System 2. Flue Gas Cooler Modification III. Summary Outline of S-OIL Refinery .I. Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ View of Refinery CDU : 580.5 mil.000 B/D P-X : 700. m2 Seoul ↔ Ulsan : 400 Km Pusan ↔ Ulsan : 50 Km .000 TPA BTX : 900.500 B/D Lube : 30.000 TPA CHINA SPM R&D S Seoul #1/#2 CDU NHC BCC / #3 CDU Lube/Aromatic Ulsan O Onsan Pusan JAPAN ※ Total Area : 2.000 B/D HOC : 253. II. Improvements of RFCC after 2010 T/A . MLCN. HCN. (1 Reactor. 2 Regenerators) RFCC : Residue Fluid Catalytic Cracking HYVAHL-Residue (from HVL. HLCN). storage) Low sulfur Wax Feeds Products Fuel Gas. LCO. Butane.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Outline of RFCC Unit R2R (RFCC) R2R is a proprietary commercial RFCC process name of Axens. LCN (LLCN. Propane. Propylene. SLO Objectives Maximizing Gasoline Maximizing Propylene . storage) Treated VGO (from MHC. GASOLINE HVY GASOLINE Stripper Packing LCO RISER 660 ℃ 2.5 KSCG M-L.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ RFCC Scheme FGTU 2nd Regenerator Fractionator GAS RECOVERY SECTION FUEL GAS PROPYLENE PROPANE C4 R1 FLUE GAS R2 FLUE GAS Disengager / Stripper L-L.2 KSCG 1st Regenerator COMBUSTION AIR O2 FEED SLURRY . GASOLINE Catalyst Cooler SHU 750 ℃ 1. GASOLINE H-L.3 KSCG 525 ℃ 1. 5 wt%) Progress • Secondary Air Blower Installation (2007 T/A) 69.000 BPD 73.8 wt% T-VR) . Cyclone & Superficial Velocity Limitation) • Feed Heaviness (MCR) Increase 73.000 BPD (for 4 months of summer) 73.000 BPD (MCR 3.000 BPD (MCR 4.000 BPD (MCR 4. utilization (studied by S&W) Charge Down 62.000 BPD (MCR 3.5 wt%) • Additional Tube Cluster Installation of Catalyst Cooler (2010 T/A) + 2 MMkcal/h heat duty is expected by O2 Enri.7 wt%) • Introduction of O2 Enrichment System (2010 T/A) 73.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Introduction of O2 Enrichment System Operational Difficulty • Combustion Air Constraints (#1 Reg. 000 BPD T-VR (MCR 3.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Introduction of O2 Enrichment System Results • Actual Result In 2010 T-VGO 2.89 wt%) • Additional Treatment of T-VR according to feed availability In the Future • Slide / Plug Valve Size-up (2013 T/A) Conversion decrease due to treating heavier feed stock and CCR Limitation CCR Increase (C/O Ratio increase) in order to increase conversion .77 3. Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ O2 Injection Package < O2 Injection Package> Installation Item < O2 Diffuser> • O2 Injection Package (O2 Skid. Control V/V. Flow Meter etc) • O2 Diffuser Installation at Main Air Tie • O2 Pay Meter Installation by Vendor (near B/L Gas O2 Pipe) . 000 BPD T-VR Max (Test Run) Profit IRR / Pay Out 5.8 mil. US $ 764 % / 0. US $ Effect T-VGO to T-VR 2.1 yr .4 mil.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Economic Analysis Effect Investment Cost 1. Flue Gas Treatment Unit Scheme .Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Flue Gas Cooler Modification -. DSN Temp. Unit S/D is needed due to CO regulation • FGC Outlet Temp.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Flue Gas Cooler Modification Operational Difficulty • Enforced Domestic Environmental Regulation In case of FGC Tube Leak.) Progress • Case Study ( FGC 1 Train Install. High (near Mech. . (Ultrasonic) New Economizer Install. Of Leak Detection System Anti-vibrating Device install. Vs FGC Modification) FGC Modification due to economics (studied by DuSan Heavy Industry) • FGC Modification Separate 4 Modules for blocking leaked module Install. 1 Ton/h) • No Charge Loss in case of Tube Leak No Tube Leak in 2010. (Solomon EII 0.17.1 Ton/h) Consistent Monitoring .Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Flue Gas Cooler Modification Results • Energy Conservation New Economizer Install. (Future expectation) In the Future Effect • Require reliability of leak detection system • HP Steam Production Increase (13. HP Steam + 13. Outline of S-OIL Refinery Major Function Of Q.M Summary ■ Flue Gas Cooler Modification Before Revamping . M Summary ■ Flue Gas Cooler Modification After Revamping .Outline of S-OIL Refinery Major Function Of Q. US $ Effect HP Steam : + 13.Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Economic Analysis Effect Investment Cost 10.1 mil.1 mil. US $ 66 % / 1.1 Ton/h Profit IRR / Pay Out 7.7 yr . Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Summary O2 Enrichment • O2 injection at #1 Regenerator • Additional Treatment of T-VR Flue Gas Cooler Modification • Flue Gas Cooler Superheater Modification (4 Module) • New Economizer Installation • Additional HP Steam Production • No Charge Loss in case of Tube Leakage . . Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Fluidization the operation by which the fine solids are transformed into a fluid-like state through contact with a gas or liquid * R2R uses air and steam to fluidize catalyst. Solid-like state Fluid-like state . Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Fluidization Regimes . Outline of S-OIL Refinery Improvements Of RFCC ’10 T/A Summary ■ Fluidization Regimes .