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Fluid distribution in fluidized bed reactor

A fluidized bed reactor, fluid distribution technology, applied in chemical instruments and methods, chemical/physical processes, etc.

Active Publication Date: 2018-04-17
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Problems that may arise in known fluidized bed reactors are flow resistance and stagnant zones of fluid discharge holes in combination with fluid distribution hoods

Method used

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  • Fluid distribution in fluidized bed reactor
  • Fluid distribution in fluidized bed reactor
  • Fluid distribution in fluidized bed reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 A schematic diagram of an exemplary system 100 with a fluidized bed reactor 101 that can be used in a polymerization process according to the prior art is shown. The fluidized bed reactor 101 has a fluidized bed 102 in which a polymerization process is performed. Fluidized bed reactor 101 may have a product outlet 108 from which polymer may be withdrawn from system 100 . Reactants and / or inert gases for use in the fluidized bed reactor may be supplied to system 100 via fluid supply line 112 . Via fluid inlet 106 , fluid enters fluidized bed reactor 101 . The fluid passes from the lower end of the fluidized bed reactor 101 to the upper part with the fluidized bed 102 in an upward flow through the discharge hole 113 in the fluidized bed reactor indicated by an upwardly pointing arrow. Fluid distribution shield 104 prevents fluidized bed material from passing through fluid distribution plate 103 when the fluidized bed reactor is inactive. Additional reactants ...

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PUM

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Abstract

A fluid distribution cap (301) for a fluidized bed reactor, comprising a tunnel shaped structure having two opposing walls for attaching to a fluid distribution plate (103), and at least one opening at an end of the tunnel shaped structure. The tunnel shaped structure has an inner surface (302) and an outer surface (303), wherein the inner surface (302) has a curved cross section, and wherein theouter surface (303) has a substantially V-shaped cross section. A fluid distribution plate (103) for a fluidized bed reactor, comprising a plate having a plurality of fluid vent holes (113), a plurality of fluid distribution caps (301), wherein for each fluid vent hole (113) a fluid distribution cap (301) is mounted over said hole (113). At least two mutually neighboring fluid distribution caps (301) are positioned with an opening of a first of the two neighboring fluid distribution caps facing a side of the second of the two neighboring fluid distribution caps. A fluidized bed reactor havinga fluid distribution plate (103) and a fluid distribution cap (301).

Description

technical field [0001] The present invention relates to a fluid distribution cover and a fluid distribution plate for a fluidized bed reactor, and a fluidized bed reactor comprising the fluid distribution cover and the fluid distribution plate. Background technique [0002] Fluidized bed reactors are used in polymerization processes involving reactants and / or catalysts in liquid, gas and solid phases. By blowing a fluid or gaseous reactant into the solid particles from below the particles, a fluidized bed is formed that floats against gravity on an upwardly flowing fluid. When the fluid flow is stopped, the solid particles will settle at the bottom of the fluidized reactor vessel. In order to avoid plugging or clogging of the inlet of the reactor vessel, a fluid distribution plate is introduced which allows the fluid to spread towards the upper part of the reactor vessel and pass through to form a fluidized bed, but when the reactor is closed, the fluidized bed below The s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/44B01J8/18
CPCB01J8/1818B01J8/1827B01J8/44B01J2208/00176B01J2208/00274B01J2208/00893
Inventor M·阿尔图凯尔
Owner SABIC GLOBAL TECH BV