Regenerator for reducing dead zone catalyst

A catalyst and regenerator technology, applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalyst, chemical instruments and methods, etc., can solve the problems of high cost, waste, increase processing cost, etc., to reduce processing cost and save Catalyst, effect of short residence time

CN104289257AInactive Publication Date: 2015-01-21PETROCHINA CO LTD
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2015-01-21
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A regenerator for reducing a dead zone catalyst mainly includes a the catalyst buffer zone, a first-stage burning zone, a second-stage burning zone, an oxychlorination zone and a roasting zone, a catalyst buffer zone support bed and a first-stage burning zone support bed which are positioned at the top of the regenerator are respectively formed by a plurality of conical funnels, the catalyst enters the buffer zone from a feeding hole, goes through the conical funnels, and enters the first-stage burning zone from a convey tube by its own gravity, and the obtained catalyst goes through the conical funnels and enters the second-stage burning zone from the convey tube by its own gravity.. The catalyst regenerator disclosed in the invention avoids the formation of the dead zone of the catalyst, avoids the formation of white dwarf balls or high carbon agents of the catalyst, saves the catalyst, reduces the processing cost of the catalyst, shortens the retention time of the catalyst and makes blanking smooth.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a catalyst regenerator for reducing dead zone, in particular to a regenerator of a continuous catalytic reforming device for petroleum processing. Background technique

[0002] Catalytic reforming is an important process of petroleum secondary processing, and it is a catalytic reaction process aimed at producing high-octane gasoline components and aromatics. Uninterrupted catalyst delivery is the key to continuous reforming reaction. The reforming regenerator is an important equipment of the reforming unit and the core equipment of the whole reforming and regeneration part. Its main features are complex structure and compact internal structure assembly. The catalyst regeneration process is a process of slowly burning off the carbon deposits on the surface of the catalyst with nitrogen containing a small amount of oxygen under a certain pressure. In the regenerator, the catalyst flows through the first-stage and second-stage ch...

Examples

Embodiment Construction

[0017] use figure 2 The structure of the catalyst regenerator shown.

[0018] The support bed for the catalyst buffer zone and the support bed for the first-stage coking zone are respectively composed of 6 conical funnels, and the lower part is the catalyst delivery nozzle. The outside of the tapered funnel is fixed on the support ring with bolts along the circumferential direction. The catalyst enters the buffer zone from the feed port, and enters the first-stage charring zone from the conveying pipe through the conical funnel by its own gravity, and then enters the second-stage charred zone from the conveying pipe through the conical funnel by its own gravity. The tapered funnel part is welded from four plates.

[0019] The use of the catalyst regenerator of the present invention prevents the catalyst from remaining in the buffer zone and the burnt area, ensures the smooth feeding of the catalyst, and reduces the production cost.