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Venturi inserts, interchangeable venturis, and methods of fluidizing

A venturi tube, fluidization technology, used in the selective removal of particles from the fluidized bed, fluidized bed coal gasification, fluidized bed reactor, gasification field

Inactive Publication Date: 2010-11-10
SYNTHESIS ENERGY SYST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Despite all the above-mentioned developments in fluidized bed technology, one problem that may be encountered is the ability to selectively remove particles from the fluidized bed, which, in the case of coal gasification, contains different types of coal with different Ash with ash characteristics, the problem encountered is to remove ash of different quality and different size or agglomerated ash from the fluidized bed

Method used

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  • Venturi inserts, interchangeable venturis, and methods of fluidizing
  • Venturi inserts, interchangeable venturis, and methods of fluidizing
  • Venturi inserts, interchangeable venturis, and methods of fluidizing

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Embodiment Construction

[0029]Various embodiments of the invention incorporate venturi inserts as replaceable. As a non-limiting example, these different inserts can be used to change the diameter of a channel, change the surface profile of a channel, change the surface characteristics of a channel, change the flow pattern through the channel, change the cross-sectional shape of a channel, divide a channel into smaller channels, and / or alter the flow rate through the channels. The present invention contemplates a variety of equipment that can be combined with replaceable venturi inserts, including but not limited to reactors, mixers, separators, classifiers, spray devices, and fluidized beds.

[0030] These replaceable venturi inserts can be used to accomplish multiple tasks including, but not limited to, changing the flow rate through the channel for particle elutriation or air classification. Generally, elutriation or air classification is a process in which lighter particles are separated from he...

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Abstract

A fluidized bed apparatus having an agglomeration passage in which is positioned a removeable venturi inset.

Description

technical field [0001] The present invention relates to an apparatus for fluidization and to a method of fluidization and to a method for the selective removal of particles from a fluidized bed. In another aspect, the invention relates to a fluidized bed reactor and to a process for gasification. In another aspect, the invention relates to replaceable venturi inserts for fluidized bed reactors, to fluidized bed reactors having replaceable venturi inserts, and to methods of gasification. In another aspect, the present invention also relates to fluidized bed coal gasification, methods relating to coal gasification and methods relating to the selective removal of ash particles from a fluidized bed. Background technique [0002] Fluidization is generally defined as the operation of converting a fine-grained solid into a fluid-like state by contacting it with a gas or liquid. Fluidized beds are known to have high heat and mass transfer coefficients due to the high surface area ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/18C10J1/207
CPCC10J2300/093B01J2208/00681B01J8/1818C10J2300/0956C10J2200/09C10J2300/0973B01J2208/00761C10J3/523C10J2300/0959
Inventor 大卫·H·尼科尔蒂莫西·E·韦尔
Owner SYNTHESIS ENERGY SYST TECH
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