Control of bed height in a fluidized bed gasification system

Title: Control of bed height in a fluidized bed gasification system

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Abstract

In a fluidized bed apparatus a method for controlling the height of the fdized bed, taking into account variations in the density of the bed. The method comprises taking simultaneous differential pressure measurements at different vertical elevations within the vessel, averaging the differential pressures, determining an average fluidized bed density, then periodically calculating a weighting factor. The weighting factor is used in the determination of the actual bed height which is used in controlling the fluidizing means.

Inventors:

Mehta, Gautam I. ^[1]; Rogers, Lynn M. ^[2]

(Greensburg, PA)
(Export, PA)

Publication Date:: Tue Dec 20 00:00:00 EST 1983

Research Org.:: WESTINGHOUSE ELECTRIC CORP

OSTI Identifier:: 864802

Patent Number(s):: US 4421523

Application Number:: 06/377,231

Assignee:: United States of America as represented by Department of Energy (Washington, DC) OSTI

DOE Contract Number:: AC01-80ET14752

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: control; bed; height; fluidized; gasification; apparatus; method; controlling; fdized; taking; account; variations; density; comprises; simultaneous; differential; pressure; measurements; vertical; elevations; vessel; averaging; pressures; determining; average; periodically; calculating; weighting; factor; determination; fluidizing; means; pressure measurement; bed gasification; method comprises; fluidized bed; differential pressure; pressure measurements; bed apparatus; method comprise; fdized bed; /48/34/

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                    Mehta, Gautam I., and Rogers, Lynn M. Control of bed height in a fluidized bed gasification system.  United States: N. p., 1983. 
        Web.

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                    Mehta, Gautam I., & Rogers, Lynn M. Control of bed height in a fluidized bed gasification system.  United States.

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                    Mehta, Gautam I., and Rogers, Lynn M. Tue .  
        "Control of bed height in a fluidized bed gasification system".  United States.  https://www.osti.gov/servlets/purl/864802.

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@article{osti_864802,

  title        = {Control of bed height in a fluidized bed gasification system},

  author       = {Mehta, Gautam I. and Rogers, Lynn M.},

  abstractNote = {In a fluidized bed apparatus a method for controlling the height of the fdized bed, taking into account variations in the density of the bed. The method comprises taking simultaneous differential pressure measurements at different vertical elevations within the vessel, averaging the differential pressures, determining an average fluidized bed density, then periodically calculating a weighting factor. The weighting factor is used in the determination of the actual bed height which is used in controlling the fluidizing means.},

  doi          = {},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Dec 20 00:00:00 EST 1983},

  month        = {Tue Dec 20 00:00:00 EST 1983}

}

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