Alstom Technology Limited

Alstom (switzerland) Ltd

John E Ferguson

Glen Jukkola

Bard C Teigen

Richard E Waryasz

George D Mylchreest

James F Durant

Reed S C Rogers

Robert V Jacobs

Laurie Ferguson

Glen D Jukkola

Reed SC Rogers

A moving bed heat exchanger () includes a vessel having an upper portion (), a lower portion () with a floor () including a discharge opening therein, and an intermediate portion (). The vessel directs a gravity flow of hot ash particles () received thereby from the upper portion () through the intermediate portion () to the floor () of the lower portion () of the vessel, where the hot ash particles () are collected. Tubes in the intermediate portion () of the vessel direct a flow of working fluid in a direction substantially orthogonal to the direction of the gravity flow of the hot ash particles () through the intermediate portion () of the vessel such that heat from the hot ash particles () is transferred to the working fluid thereby cooling the hot ash particles ().

Moving bed heat exchanger for circulating fluidized bed boiler

A sorbent conditioning and direct feed apparatus is provided for direct feeding of a conditioned solid sorbent to a combustor . The sorbent conditioning and direct feed apparatus includes raw solid sorbent storages means , particle size reducing means for reducing the particle size of solid sorbent supplied thereto from a relatively larger coarse particle size to a relatively smaller fine particle size, metering means for metering the supply of raw solid sorbent from the raw solid sorbent storage means to the particle size reducing means , and transport means for transporting solid sorbent which has been conditioned by the particle size reducing means to the combustor , whereby conditioned solid sorbent is fed to the combustor without any intermediate storage of the solid sorbent between the raw solid sorbent storage means and the transport means

Sorbent conditioning and direct feed apparatus for a steam generator and a method for retrofitting a steam generator with same

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New Hartford, CT, United States of America

John E Ferguson