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Title: The role of pressure drop and flow redistribution on modeling mercury control using sorbent injection in baghouse filters

Abstract

A mathematical model based on simple cake filtration theory was coupled to a previously developed two-stage mathematical model for mercury (Hg) removal from coal combustion using powdered activated carbon injection upstream of a baghouse filter. Values of the average permeability of the filter cake and the filter resistance extracted from the model were 4.4 x 10{sup -13}m{sup 2} and 2.5 x 10{sup -4}m{sup -1}, respectively. The flow is redistributed during partial cleaning of the filter, with flows higher across the newly cleaned filter section. The calculated average Hg removal efficiency from the baghouse is lower because of the high mass flux of Hg exiting the filter in the newly cleaned section. The model shows that calculated average Hg removal is affected by permeability, filter resistance, fraction of the baghouse cleaned, and cleaning interval. 17 refs., 8 figs., 2 tabs.

Authors:
; ; ; ; ;  [1]
  1. University of South Carolina, Columbia, SC (United States). Department of Civil and Environmental Engineering
Publication Date:
OSTI Identifier:
20740962
Resource Type:
Journal Article
Journal Name:
Journal of the Air and Waste Management Association
Additional Journal Information:
Journal Volume: 3; Journal Issue: 56; Journal ID: ISSN 1047-3289
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; PRESSURE DROP; BAGHOUSES; MATHEMATICAL MODELS; MERCURY; REMOVAL; SORBENT INJECTION PROCESSES; PERMEABILITY; EFFICIENCY; ACTIVATED CARBON; PULVERIZED FUELS; COAL; CLEANING; FLY ASH; FLUE GAS; FABRIC FILTERS; PILOT PLANTS; COKING; PARAMETRIC ANALYSIS; TIME DEPENDENCE

Citation Formats

Flora, Joseph R.V., Hargis, Richard A, O'Dowd, William J, Karash, Andrew, Pennline, Henry W, and Vidic, Radisav D. The role of pressure drop and flow redistribution on modeling mercury control using sorbent injection in baghouse filters. United States: N. p., 2006. Web. doi:10.1080/10473289.2006.10464457.
Flora, Joseph R.V., Hargis, Richard A, O'Dowd, William J, Karash, Andrew, Pennline, Henry W, & Vidic, Radisav D. The role of pressure drop and flow redistribution on modeling mercury control using sorbent injection in baghouse filters. United States. https://doi.org/10.1080/10473289.2006.10464457
Flora, Joseph R.V., Hargis, Richard A, O'Dowd, William J, Karash, Andrew, Pennline, Henry W, and Vidic, Radisav D. 2006. "The role of pressure drop and flow redistribution on modeling mercury control using sorbent injection in baghouse filters". United States. https://doi.org/10.1080/10473289.2006.10464457.
@article{osti_20740962,
title = {The role of pressure drop and flow redistribution on modeling mercury control using sorbent injection in baghouse filters},
author = {Flora, Joseph R.V. and Hargis, Richard A and O'Dowd, William J and Karash, Andrew and Pennline, Henry W and Vidic, Radisav D},
abstractNote = {A mathematical model based on simple cake filtration theory was coupled to a previously developed two-stage mathematical model for mercury (Hg) removal from coal combustion using powdered activated carbon injection upstream of a baghouse filter. Values of the average permeability of the filter cake and the filter resistance extracted from the model were 4.4 x 10{sup -13}m{sup 2} and 2.5 x 10{sup -4}m{sup -1}, respectively. The flow is redistributed during partial cleaning of the filter, with flows higher across the newly cleaned filter section. The calculated average Hg removal efficiency from the baghouse is lower because of the high mass flux of Hg exiting the filter in the newly cleaned section. The model shows that calculated average Hg removal is affected by permeability, filter resistance, fraction of the baghouse cleaned, and cleaning interval. 17 refs., 8 figs., 2 tabs.},
doi = {10.1080/10473289.2006.10464457},
url = {https://www.osti.gov/biblio/20740962}, journal = {Journal of the Air and Waste Management Association},
issn = {1047-3289},
number = 56,
volume = 3,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}