C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 75/04 (2006.01)
Patent
CA 2537886
A method which controls sedimentation occurring at a heat exchanger for cooling hydrodesulfurization/ hydrocracking residue containing asphaltenes at a high content and thereby prevents fouling of the heal exchanger is disclosed. A method for preventing fouling, of a heat exchanger for cooling hydrodesulfurization/hydrocracking residue, which injects flux oil info hydrodesulfurization/hydrocracking residue containing asphaltenes at 1% by mass or more, wherein the flux oil is at least one species of residue selected from the group consisting of crude vacuum distillation residue and fluidized catalytic cracking residue, and injected into the hydrodesulfurization/hydrocracking residue to control its actual sediment content at 0.2% by mass or less, determined in. accordance with TP-375 is also disclosed.
Higo Manabu
Kobayashi Hiroyuki
Kuwabara Masayoshi
Nakashima Norihiro
Borden Ladner Gervais Llp
Research Association Of Refinery Integration For Group-Operation
Showa Shell Sekiyu K.k.
Tonengeneral Sekiyu K.k.
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