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Title: Bench-scale studies of in-duct mercury capture using cupric chloride-impregnated carbons

Abstract

A brominated activated carbon (Darco Hg-LH) and cupric chloride-impregnated activated carbon (CuCl{sub 2}-ACs) sorbent have been tested in a bench-scale entrained-flow reactor system which was developed for simulating in-flight mercury capture in ducts upstream of particulate matter control devices. The bench-scale experimental system has been operated with the conditions of a residence time of 0.75 s and a gas temperature of 140{sup o}C to simulate typical conditions in the duct of coal-fired exhaust gas. In addition, sorbent deposition on walls which can occur in a laboratory-scale system more than in a full-scale system was significantly reduced so that additional mercury capture by the deposited sorbent was minimized. In the entrained-flow system, CuCl{sub 2}-ACs demonstrated similar performance in Hg adsorption and better performance in Hg{sup 0} oxidation than Darco Hg-LH. In addition, the carbon content of those sorbents was found to determine their Hg adsorption capability in the entrained-flow system. The bench-scale entrained-flow system was able to demonstrate the important Hg adsorption and oxidation characteristics of the tested sorbents. 18 refs., 9 figs., 1 tab.

Authors:
; ;  [1]
  1. University of Cincinnati, Cincinnati, OH (United States). Department of Civil and Environmental Engineering
Publication Date:
OSTI Identifier:
21186964
Resource Type:
Journal Article
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 43; Journal Issue: 8; Journal ID: ISSN 0013-936X
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; MERCURY; CAPTURE; ACTIVATED CARBON; COPPER CHLORIDES; BENCH-SCALE EXPERIMENTS; SORBENT INJECTION PROCESSES; FLUE GAS; SIMULATION; DEPOSITION; ENTRAINMENT; ADSORPTION; OXIDATION; ADSORBENTS; BROMINE; PERFORMANCE; CARBON; SAMPLE PREPARATION; CHEMICAL STATE; FLOW RATE

Citation Formats

Lee, Sang-Sup, Lee, Joo-Youp, and Keener, Tim C. Bench-scale studies of in-duct mercury capture using cupric chloride-impregnated carbons. United States: N. p., 2009. Web.
Lee, Sang-Sup, Lee, Joo-Youp, & Keener, Tim C. Bench-scale studies of in-duct mercury capture using cupric chloride-impregnated carbons. United States.
Lee, Sang-Sup, Lee, Joo-Youp, and Keener, Tim C. 2009. "Bench-scale studies of in-duct mercury capture using cupric chloride-impregnated carbons". United States.
@article{osti_21186964,
title = {Bench-scale studies of in-duct mercury capture using cupric chloride-impregnated carbons},
author = {Lee, Sang-Sup and Lee, Joo-Youp and Keener, Tim C},
abstractNote = {A brominated activated carbon (Darco Hg-LH) and cupric chloride-impregnated activated carbon (CuCl{sub 2}-ACs) sorbent have been tested in a bench-scale entrained-flow reactor system which was developed for simulating in-flight mercury capture in ducts upstream of particulate matter control devices. The bench-scale experimental system has been operated with the conditions of a residence time of 0.75 s and a gas temperature of 140{sup o}C to simulate typical conditions in the duct of coal-fired exhaust gas. In addition, sorbent deposition on walls which can occur in a laboratory-scale system more than in a full-scale system was significantly reduced so that additional mercury capture by the deposited sorbent was minimized. In the entrained-flow system, CuCl{sub 2}-ACs demonstrated similar performance in Hg adsorption and better performance in Hg{sup 0} oxidation than Darco Hg-LH. In addition, the carbon content of those sorbents was found to determine their Hg adsorption capability in the entrained-flow system. The bench-scale entrained-flow system was able to demonstrate the important Hg adsorption and oxidation characteristics of the tested sorbents. 18 refs., 9 figs., 1 tab.},
doi = {},
url = {https://www.osti.gov/biblio/21186964}, journal = {Environmental Science and Technology},
issn = {0013-936X},
number = 8,
volume = 43,
place = {United States},
year = {Wed Apr 15 00:00:00 EDT 2009},
month = {Wed Apr 15 00:00:00 EDT 2009}
}