公开(公告)号：US4197189A

公开(公告)日：1980-04-08

申请号：US908301

申请日：1978-05-22

Applicant: Gregory J. Thompson ,  Anthony G. Vickers

Inventor： Gregory J. Thompson ,  Anthony G. Vickers

IPC: B01J8/18 ,  B01J21/20 ,  B01J23/90 ,  B01J29/90 ,  B01J37/14 ,  C10G11/18 ,  B01D15/00 ,  B01J37/12 ,  C10G13/18

CPC classification number: B01J21/20 ,  B01J23/90 ,  B01J29/90 ,  B01J37/14 ,  B01J8/1818 ,  C10G11/182 ,  Y02P30/446

Abstract: A catalyst regeneration process and apparatus for the oxidation of coke from a spent catalyst, said coke being converted to CO, and for the conversion of the CO to CO.sub.2. Hot regenerated catalyst is recycled from a dense bed in the regeneration zone to mix with incoming spent catalyst in a riser-mixer. The riser-mixer operates in dense phase and is supplied with a relatively small amount of a fluidizing medium, preferably air. After the mixing of spent and fresh catalyst is substantially completed, a relatively large amount of a regenerating gas, preferably air, is admixed with the catalyst mixture, and some coke oxidation occurs. The balance of coke oxidation takes place in a downstream-situated regeneration zone of substantially conventional design. The regenerating gas addition is preferably made at the base of a cone-shaped combustor in order to provide a venturi effect which ensures good air-catalyst mixing.

Abstract translation: 用于从废催化剂氧化焦炭的催化剂再生方法和装置，所述焦炭转化为CO，并将CO转化为CO 2。 热再生催化剂从再生区中的致密床再循环，与提升管混合器中的输入的废催化剂混合。 提升混合器以密相工作，并且供应相对少量的流化介质，优选空气。 在废旧催化剂的混合基本上完成之后，将相当大量的再生气体，优选空气与催化剂混合物混合，并发生一些焦炭氧化。 焦炭氧化的平衡发生在基本上常规设计的位于下游的再生区中。 再生气体添加优选在锥形燃烧器的基部制成，以提供确保良好的空气 - 催化剂混合的文氏管效应。