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Sinopec company refining F101 delayed coking furnace tube cleaning

Release time:2017-05-27Author:Click:2491

 1、Furnace tube parameter

  Number of tubes: 4 row

  Convection section parameter: Phi 127*10mm

  Radiation segment parameter: Phi 127*10mm

  2、Analysis of user equipment coking

  A# furnace tube

  Coking condition:

  The maximum coking depth is 40mm, and the average coking reaches 16mm. The coking area is the radiation section and convection section

  Comparison of furnace tube parameters

Flow measurement


Before coke cleaning

After coke cleaning


GPM

PSI

PSI


150

180

75


200

260

90


250

380

150

 B# furnace tube

  Coking condition:

  The maximum coking depth is 35mm, and the average coking reaches 14mm. The coking area is the radiation section and convection section

  Comparison of furnace tube parameters

Flow measurement


Before coke cleaning

After coke cleaning


GPM

PSI

PSI


150

140

75


200

230

90


250

300

150

 C# furnace tube

  Coking condition:

  The maximum coking depth is 60mm, and the average coking reaches 18mm. The coking area is the radiation section and convection section

  Comparison of furnace tube parameters

Flow measurement


Before coke cleaning

After coke cleaning


GPM

PSI

PSI


150

220

80


200

280

90


250

395

155

 D# furnace tube

  Coking condition:

  The maximum coking depth is 54mm, and the average coking reaches 16mm. The coking area is the radiation section and convection section

  Comparison of furnace tube parameters

Flow measurement


Before coke cleaning

After coke cleaning


GPM

PSI

PSI


150

210

78


200

275

91


250

370

152

  Coke clear summary: in the process of cleaning coke, the radiation section of coking hard, A#B#C#D# coking is very serious, total clear coke powder (200L gasoline barrel) 26 barrels.