FIS-483 Consolidated Engineering Study Report

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Marathon Petroleum Company, Catlettsburg Refinery, KY Capacity Improvement Study of LPCCR Platformer Heater (1-44-B-1/2/3/4) Detailed Design Engineering of proposed modifications Any Mechanical / Structural / Civil design and calculations Any Piping, Instrumentation and electrical design and calculations. Any other activity not specifically mentioned in the scope of service 2.2 Design Basis The following data from the heater datasheet is used for evaluating the existing design case of the Platformer heater: Table 1: Existing Design Rich Case Data Parameters Unit Charge Heater Inter Heater 1 Inter Heater 2 Inter Heater 3 Process Heat Duty MMBtu/hr 26.12 37.46 28.7 13.98 Naphtha Charge Rate (Calculated) Recycle Gas Flow Rate (Calculated) MBPD 18.2 MMSCFD 26.4 Total Feed Flow Rate lb/hr 211,731 Inlet Temperature °F 866 801 852 934 Outlet Temperature °F 1,010 1,010 1,010 1,010 Temperature Rise °F 144 209 158 76 Inlet Pressure psig 77 71.8 68.2 63.0 Outlet Pressure psig 75.8 69.8 66.2 61.3 Coil Pressure Drop psi 1.2 2.0 2.0 1.7 Waste Heat Duty MMBtu/hr 50.5 Firing Rate MMBtu/hr 177.51 Furnace Improvements Low Cost Solutions for Fired Heaters 14
Marathon Petroleum Company, Catlettsburg Refinery, KY Capacity Improvement Study of LPCCR Platformer Heater (1-44-B-1/2/3/4) FIS considered 280 MMBtu/hr (LHV) as the permitted firing rate for the proposed design basis, based on the discussion with Marathon. The proposed design basis is as follows: Table 2: Proposed Design Basis / Projected Operating Case Parameters Unit Charge Heater Inter Heater 1 Inter Heater 2 Inter Heater 3 Process Heat Duty MMBtu/hr 53.4 60.5 48.6 29.5 Naphtha Charge Rate Recycle Gas Flow Rate MBPD 24.5 MMSCFD 40.0 Total Feed Flow Rate lb/hr 288,160 Inlet Temperature °F 741 728.7 795.9 847.1 Outlet Temperature °F 953 988.7 990.0 954.0 Temperature Rise °F 212 260 194.1 106.9 Coil ΔP psi 1.2 2.0 2.0 1.7 Debutanizer Duty MMBtu/hr 5.0 Waste Heat Duty MMBtu/hr 53.0 Firing Rate MMBtu/hr 280.0 Table 3: Debutanizer Data for Proposed Case Parameters Unit Value Feed Flow Rate (Calculated) lb/hr 93,327 Feed inlet temperature °F 504 Furnace Improvements Low Cost Solutions for Fired Heaters 15
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FURNACE IMPROVEMENTS PROPOSED CONVE
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PROPOSED DESIGN LEGEND: BFW INLET 6
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FIS-483 Consolidated Engineering Study Report

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