Methods and apparatus for cooling syngas within gasifier system

Abstract

A method for operating a syngas cooler is provided. The method includes channeling a flow of syngas into an annular cooling chamber having a longitudinal axis, injecting a cooling fluid into a manifold such that the cooling fluid is channeled substantially circumferentially about the annular cooling chamber, and discharging the cooling fluid from the manifold such that the cooling fluid contacts a surface of the cooling chamber at a predetermined angle relative to the axis of the cooling chamber.

Description

technical field [0001] The present invention relates generally to syngas coolers within gasifier systems, and more particularly, to quench rings for use with syngas coolers. Background technique [0002] Some known syngas coolers cool the syngas, fly ash particles and slag inclusions in the syngas as it is cooled by radiative and convective heat exchange in an array of tubes. By rapidly reducing the bulk temperature of the syngas, slag and / or particles, some suspended slag and / or particles can be deposited from the syngas onto the tube surfaces. Other slag droplets or particles are cooled and discharged from the lower section of the syngas cooler tube region along with the cooled syngas. In such boilers, solidified slag inclusions, cooled particles and cooled syngas are removed at the lower end of the downflow syngas cooler tube region. [0003] Other known syngas coolers use a chilling system to chill the syngas, slag inclusions and particulates contained therein with a c...

AI Technical Summary

Problems solved by technology

If insufficient water is supplied to the chill rings, the water flow from such chill rings may be uneven to the surface to be cooled

Additionally, the use of such chill rings may be limited by the water available and / or the space available for positioning the chill rings

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