公开(公告)号：US5516422A

公开(公告)日：1996-05-14

申请号：US239191

申请日：1994-05-06

Applicant: Patrick O. Sajbel

Inventor： Patrick O. Sajbel

IPC: B01J8/00 ,  C10G35/12 ,  C10G35/10

CPC classification number: C10G35/12 ,  B01J8/0015 ,  B01J8/0025

Abstract: A process for transferring catalyst particles between multiple reactions zones simplifies the system for use of a single valve operation by passing a purge gas into a lower section of a reaction zone that discharges catalyst from the reaction zone into a lift vessel and uses the intermittent introduction of a lift gas stream to entrain catalyst particles in a dilute phase upward lift step to a succeeding reaction zone while simultaneously retarding the flow of catalyst particles down the discharge conduit and interrupting the flow of purge gas down the discharge conduit. In this manner a flow of purge gas can constantly enter the reaction zone supplying catalyst particles to the lift system thereby preventing any flow of reactants from the reactor into the lift system while only the addition of lift gas into the lift system needs to be cycled on and off to intermittently transfer the catalyst particles upwardly in dilute phase to the top of the next reaction zone. Therefore, the whole system can transfer catalyst particles indefinitely with the operation of only one valve that is not in catalyst service. As a result additional equipment such as disengagers, control valves and conduits for venting gas and interrupting catalyst flow is eliminated.

Abstract translation: 在多个反应区域之间转移催化剂颗粒的方法通过将吹扫气体通过将反应区域从反应区域排出到提升容器中的反应区域的下部区域来简化了单个阀门操作的系统，并且使用间歇引入 提升气流以将稀释相向上提升步骤中的催化剂颗粒夹带到随后的反应区域，同时延迟催化剂颗粒在排出管道下方的流动并中断排出管道下的净化气体流。 以这种方式，吹扫气体的流动可以恒定地进入提供催化剂颗粒的反应区域到提升系统，从而防止反应物从反应器流入电梯系统中的任何流动，同时仅需要在电梯系统中添加提升气体需要循环 并且将稀释相向上的催化剂颗粒间歇地转移到下一个反应区的顶部。 因此，整个系统可以无限期地转移催化剂颗粒，只需要一个不在催化剂中的阀。 因此，消除了用于排放气体和中断催化剂流的诸如脱开器，控制阀和导管的附加设备。