公开(公告)号：US3857794A

公开(公告)日：1974-12-31

申请号：US18282871

申请日：1971-09-22

Applicant: CHEVRON RES

Inventor： CAREY E

IPC: B01J8/24 ,  C10G11/18 ,  B01J11/04

CPC classification number: B01J8/1809 ,  B01J2208/00548 ,  C10G11/187

Abstract: In a process for reducing the amount of oxygen in the effluent gases from a catalytic cracker regenerator, and thus controlling after-burning, a reducing gas such as carbon monoxide or hydrogen is injected into the regenerator above the bed of catalyst being regenerated. Preferably the amount of reducing gas is automatically controlled responsive to the oxygen content of the effluent flue gases from the regenerator. Preferably the reducing gas is introduced through at least three nozzles into the regenerator. Preferably the nozzles are located in substantially different positions within the regenerator above the bed of catalyst being regenerated, and the amount of reducing gas flow through each nozzle is controlled responsive to oxygen content of the effluent flue gases from the regenerator.

Abstract translation: 在用于减少来自催化裂化器再生器的流出气体中的氧气量的减少并因此控制后燃烧的方法中，将还原气体如一氧化碳或氢气注入到再生催化剂床上方的再生器中。 优选地，响应于来自再生器的废气烟道气的氧含量自动控制还原气体的量。 优选地，还原气体通过至少三个喷嘴引入再生器。 优选地，喷嘴位于再生器的位于催化剂再生床上方的基本上不同的位置，并且通过每个喷嘴的还原气体流量受控于来自再生器的废气烟道气的氧含量。