Theoretical Approach for Enhanced Mass Transfer Effects In-duct Flue Gas Desulfurization Processes. Volume 1, Dry Sorbent Injection

Download or read book Theoretical Approach for Enhanced Mass Transfer Effects In-duct Flue Gas Desulfurization Processes. Volume 1, Dry Sorbent Injection written by and published by . This book was released on 1992 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of fundamental mass transfer testing for in-duct removal of SO2. Following this initial part of an experimental program, it became clear that the amount of initial moisture on the sorbent strongly affected the extent of Ca(OH)2 conversion. Novel techniques aimed at increasing sorbent utilization were investigated and are described. Major novel technique investigated and reported on here was the reaction with SO2 of sorbents with initial free moisture (damp sorbents). The duct injection process using damp solids has the following steps: preparation of sorbent as a slurry, blending of the slurry with dry recycle materials to create damp solids, injection of the solids into the duct, reaction and drying of the solids with flue gas in the duct, collection in particulate control equipment, and finally recycle of dry solids with some bleed to disposal. The moisture content of the solids at each step affects system performance. Various factors favor high moisture whereas others favor low moisture. (VC).