Validation of a procedure for dimensioning a cyclone separator for circulating fluidized bed gasifier

Abstract

Circulating fluidized bed technology presents great particle mixing capacity. A cyclone separator is coupled to gasifier reactor and is responsible for particulate separation and producer gas cleanup. Cyclone dimensioning must be done carefully, according to the conditions this device is going to be submitted. Thus, this work aims to validate and analyze a dimensioning methodology and apply it to a gasifier. Three cyclone geometries were considered (Stairmend, Swift and Lapple) and are compared in terms of collection efficiency and pressure drop. At the end, a parameter sensibility study was also reported, thus variation of dimension, efficiency and pressure drop for a producer gas volumetric flow range was tested.