FIS-483 Consolidated Engineering Study Report

More documents

Recommendations

Info

Marathon Petroleum Company, Catlettsburg Refinery, KY Capacity Improvement <strong>Study</strong> of LPCCR Platformer Heater (1-44-B-1/2/3/4) 2.4 Fuel Gas Characteristics The following fuel gas design composition from datasheet is used for the existing design, operating and proposed design simulations. Table 7: Fuel Gas Properties Parameters Units Refinery Gas Design Alternate Specific Gravity at 60°F - 0.68 0.60 Heat of Combustion (LHV) Btu/Scf 1,120 1,005 Fuel temperature at burner F 100 100 Components H2 % 39.33 46.70 CH4 % 18.41 22.60 C2H6 % 24.34 14.10 C3H6 % 1.21 2.30 C3H8 % 12.58 7.80 I-C4H10 % 1.31 2.00 n-C4H10 % 1.61 2.00 i-C5H12 % 1.21 1.25 n-C5H12 % 0 1.25 Total % 100 100 Furnace Improvements Low Cost Solutions for Fired Heaters 20
Marathon Petroleum Company, Catlettsburg Refinery, KY Capacity Improvement <strong>Study</strong> of LPCCR Platformer Heater (1-44-B-1/2/3/4) Section 3 System Analysis 3.1 LPCCR Platformer Heater Description The CCR Platformer heater (1-44-B-1/2/3/4) is a four-cell box type with Vertical Arbor (“U”) coils. The Platformer heater has a common convection section and a self-supported & top mounted stack. The heater was originally built and installed in 1992. The heater operates under natural draft. The Platformer heater radiant box consists of 4 cells; Charge heater, No. 1 Interheater, No. 2 Interheater and No. 3 Interheater. The radiant section of the heater is used to heat process service and the convection section is used for waste heat recovery. The total absorbed duty of the heater is 156.76 MMBtu/hr. The total process duty in the radiant section is 106.26 MMBtu/hr and the waste heat duty in the convection is 50.5 MMBtu/hr. The heater is designed for gas firing and is operated at 15% excess air. The firing rate of the heater is 177.51 MM Btu/hr (LHV). The net thermal efficiency of the heater is 88.3% (based on LHV) considering 2% radiation heat loss. 3.1.1 Radiant Section The process feed to the radiant section is a mixture of Naphtha and Recycle Gas. The flue gas temperature leaving the radiant section is 1,500ºF. Charge Heater (1-44-B-1) The Charge heater is designed for a 26.12 MMBtu/hr heat duty. It has a normal duty of 23.75 MMBtu/hr. This cell is designed to heat 211,731 lb/hr of feed from 866ºF to 1,010ºF. The feed enters at a pressure of 77 psig and leaves at 75.8 psig. The calculated coil pressure drop is 1.2 psi. The process fluid mass velocity is 23.8 lb/sec.ft 2 . The average radiant heat flux is 9,075 Btu/hr.ft 2 and the maximum Furnace Improvements Low Cost Solutions for Fired Heaters 21
Page 1 and 2: Marathon Petroleum Company Catletts
Page 3 and 4: Marathon Petroleum Company, Catlett
Page 19: Marathon Petroleum Company, Catlett
Page 70 and 71:
Marathon Petroleum Company, Catlett
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
FURNACE IMPROVEMENTS PROPOSED CONVE
Page 146 and 147:
PROPOSED DESIGN LEGEND: BFW INLET 6
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
5 Marathon Petroleum Company, Catle
Page 170 and 171:
show all

FIS-483 Consolidated Engineering Study Report

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?