公开(公告)号：US4440632A

公开(公告)日：1984-04-03

申请号：US187612

申请日：1980-09-15

申请人： Iacovos A. Vasalos ,  Eugene G. Wollaston

发明人： Iacovos A. Vasalos ,  Eugene G. Wollaston

IPC分类号： C10G11/18 ,  B01J37/14

CPC分类号： C10G11/182 ,  C10G11/18

摘要： Emissions of sulfur oxides from the regenerator of a fluidized catalytic cracking unit are reduced by selectively removing a portion of the sulfur from sulfur-containing coke deposits on deactivated cracking catalyst. This is accomplished by reaction of these deposits with limited amounts of molecular oxygen in a stripping zone at a temperature in the range from about 550.degree. to about 700.degree. C. Effluent gas from the striping zone is combined with the cracked hydrocarbon products.

摘要翻译： 通过在失活的裂化催化剂上从含硫焦炭沉积物中选择性地除去一部分硫，可以减少来自流化催化裂化装置的再生器的硫氧化物的排放。 这是通过这些沉积物在汽提区中在约550℃至约700℃的温度范围内的有限量的分子氧的反应来实现的。来自条带区的流出气体与裂化烃产物组合。