公开(公告)号：US07799212B2

公开(公告)日：2010-09-21

申请号：US11362520

申请日：2006-02-27

申请人： Norihiro Nakashima ,  Masayoshi Kuwbara ,  Manabu Higo ,  Hiroyuki Kobayashi

发明人： Norihiro Nakashima ,  Masayoshi Kuwbara ,  Manabu Higo ,  Hiroyuki Kobayashi

IPC分类号： C10G45/00 ,  C10G17/00

CPC分类号： C10G75/04

摘要： 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 heat exchanger is disclosed. A method for preventing fouling of a heat exchanger for cooling hydrodesulfurization/hydrocracking residue, which injects flux oil into 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 IP-375 is also disclosed.

摘要翻译： 控制在热交换器处发生的沉淀物的方法，用于冷却含有高沥青质的加氢脱硫/加氢裂化残渣，从而防止热交换器的结垢。 一种防止用于冷却加氢脱硫/加氢裂化残渣的热交换器的结垢的方法，其将助熔油注入含有1质量％以上的沥青质的加氢脱硫/加氢裂化残渣中，其中，所述助熔剂油为选自以下的残留物中的至少一种： 由粗真空蒸馏残渣和流化催化裂化残渣组成，并注入加氢脱硫/加氢裂化残渣，控制其实际沉淀物含量按质量计为0.2质量％以下，根据IP-375测定。