A previously unknown partitioned fluidized bed gasifier (PtFBG) has been developed for improving coal gasification performance. The basic concept of PtFBG is dividing a fluidized bed into two parts, a gasifier and a combustor, by a partitioned wall. Char is burnt in the combustor and the generated heat is supplied to the gasifier along with the bed materials. In this study, gas mixing behaviors were verified in a cold model PtFBG. As bed materials, glass beads with an average diameter of 150 microns and an apparent particle density of 2.5 g/cm3 were used. For the gas mixing experiments, CO2 and N2 were introduced. Outlet gas flow rates and concentrations were measured by gas flow meters and IR gas analyzer, respectively. For limiting gas mixing and improving solid mixing, newly developed distributors and plenums were installed and compared results with normal systems.

Effect of distributor design on lateral gas mixing behavior in a cold model partitioned fluidized bed gasifier

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.