公开(公告)号：US4839026A

公开(公告)日：1989-06-13

申请号：US750645

申请日：1985-06-28

申请人： Stanley M. Brown ,  John W. Byrne ,  Harry E. Jacobs

发明人： Stanley M. Brown ,  John W. Byrne ,  Harry E. Jacobs

IPC分类号： B01D53/50 ,  B01J23/10 ,  B01J23/90 ,  B01J29/90 ,  C10G11/05 ,  C10G11/18

CPC分类号： C10G11/18 ,  B01D53/508 ,  B01J23/10 ,  B01J23/90 ,  B01J29/90 ,  C10G11/05

摘要： Sulfur oxides are removed at least partially from the gaseous regenerator effluent of a fluid catalytic cracking unit operated with feedstock containing sulfur compounds and converted to hydrogen sulfide in the cracking zone by associating sulfur oxides in the gas with at least one rare earth compound, preferably cerium or a rare earth mixture rich in cerium, supported on discrete particles of alumina. The alumina particles may be a component of particles of a composite fluid cracking catalyst or separate fluidizable entities other than cracking catalyst and physically admixed with the catalyst particles.

摘要翻译： 至少部分地从与硫化合物原料一起运行的流化催化裂化装置的气体再生器流出物中除去硫氧化物，并通过将气体中的硫氧化物与至少一种稀土化合物，优选铈 或富含铈的稀土混合物，负载在离散的氧化铝颗粒上。 氧化铝颗粒可以是复合流体裂化催化剂的颗粒的组分或除裂化催化剂以外的单独的可流化实体，并与催化剂颗粒物理混合。