High-Temperature Reaction in the Freeboard Region above a Bubbling Fluidized Bed

0341593 - ÚCHP 2011 RIV US eng J - Journal Article
Hartman, Miloslav - Trnka, Otakar - Pohořelý, Michael - Svoboda, Karel
High-Temperature Reaction in the Freeboard Region above a Bubbling Fluidized Bed.
Industrial and Engineering Chemistry Research. Roč. 49, č. 6 (2010), s. 2672-2980. ISSN 0888-5885
R&D Projects: GA AV ČR IAA400720701
Institutional research plan: CEZ:AV0Z40720504
Keywords : fluidization * freeboard * performance
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 2.071, year: 2010

A plug flow model is presented for the oxidation of hazardous carbon monoxide into inert carbon dioxide taking place in the freeboard region above a freely bubbling fluidized reactor. The extent of the reaction in oxygen- and water vapor-bearing flue gas is described as a function of the fraction of solids ejected into the freeboard from the bed surface, the relative throughput, the gas density, and the global rate of reaction. Experimental measurements were conducted to determine the axial concentration profiles of carbon monoxide and other species throughout the freeboard. Steady-state measurements were carried out in an electrically heated reactor with an inner diameter of 9.36 cm above a gently fluidized bed of heat-resistant ceramsite particles in which a precursive liquid fuel (isopropanol) was burned.
Permanent Link: http://hdl.handle.net/11104/0184525