Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas

Toru Yamada; Yuki Yamaji; Eiji Sasaoka; Shengji Wu; Md Aznar Uddin

Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas

Toru Yamada, Yuki Yamaji, Eiji Sasaoka, Shengji Wu, Md Aznar Uddin

Institute for Global Human Resource Development

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this study, the effect of HCl on the Hg⁰ removal performance for coal combustion flue gas system using activated carbons prepared from fly ash and pitch and activated carbon derived from coconut shell (a commercial sample) was investigated. Mercury (Hg⁰) removal capacity of fly ash-pitch activated carbon was higher than that of coconut shell activated carbon in the absence of HCl, however fly ash-pitch activated carbon showed lower mercury adsorption performance compared to the coconut shell activated carbon in the presence of HCl. It is suggest that in the absence of HCl, surface H₂SO₄ was produced by the adsorption of SO₂, O₂ and H₂O on the activated carbon which then reacted with Hg⁰ to produce HgSO₄ and enhanced the mercury adsorption capacity of the activated carbons. The presence of HCl in the feed gas increased the Hg⁰ removal performance of the activated carbon sorbents many fold. However, the presence of SO₂ has an adverse effect on the adsorption capacity of the activated carbons in the presence of HCl.

Original language	English
Title of host publication	23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development
Publication status	Published - Dec 1 2006
Event	23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development - Pittsburgh, PA, United States Duration: Sep 25 2006 → Sep 28 2006

Publication series

Name	23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development

Other

Other	23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development
Country	United States
City	Pittsburgh, PA
Period	9/25/06 → 9/28/06

ASJC Scopus subject areas

Energy Engineering and Power Technology
Condensed Matter Physics

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Yamada, T., Yamaji, Y., Sasaoka, E., Wu, S., & Uddin, M. A. (2006). Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas. In 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development (23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development).

Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas. / Yamada, Toru; Yamaji, Yuki; Sasaoka, Eiji; Wu, Shengji; Uddin, Md Aznar.

23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development. 2006. (23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yamada, T, Yamaji, Y, Sasaoka, E, Wu, S & Uddin, MA 2006, Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas. in 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development. 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development, 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development, Pittsburgh, PA, United States, 9/25/06.

Yamada T, Yamaji Y, Sasaoka E, Wu S, Uddin MA. Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas. In 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development. 2006. (23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development).

Yamada, Toru ; Yamaji, Yuki ; Sasaoka, Eiji ; Wu, Shengji ; Uddin, Md Aznar. / Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas. 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development. 2006. (23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development).

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title = "Effect of hydrogen chloride in coal combustion flue gas on the mercury removal performance of activated carbon from coal combustion flue gas",

abstract = "In this study, the effect of HCl on the Hg0 removal performance for coal combustion flue gas system using activated carbons prepared from fly ash and pitch and activated carbon derived from coconut shell (a commercial sample) was investigated. Mercury (Hg0) removal capacity of fly ash-pitch activated carbon was higher than that of coconut shell activated carbon in the absence of HCl, however fly ash-pitch activated carbon showed lower mercury adsorption performance compared to the coconut shell activated carbon in the presence of HCl. It is suggest that in the absence of HCl, surface H2SO4 was produced by the adsorption of SO2, O2 and H2O on the activated carbon which then reacted with Hg0 to produce HgSO4 and enhanced the mercury adsorption capacity of the activated carbons. The presence of HCl in the feed gas increased the Hg0 removal performance of the activated carbon sorbents many fold. However, the presence of SO2 has an adverse effect on the adsorption capacity of the activated carbons in the presence of HCl.",

author = "Toru Yamada and Yuki Yamaji and Eiji Sasaoka and Shengji Wu and Uddin, {Md Aznar}",

year = "2006",

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booktitle = "23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development",

note = "23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development ; Conference date: 25-09-2006 Through 28-09-2006",

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AU - Yamada, Toru

AU - Yamaji, Yuki

AU - Sasaoka, Eiji

AU - Wu, Shengji

AU - Uddin, Md Aznar

PY - 2006/12/1

Y1 - 2006/12/1

N2 - In this study, the effect of HCl on the Hg0 removal performance for coal combustion flue gas system using activated carbons prepared from fly ash and pitch and activated carbon derived from coconut shell (a commercial sample) was investigated. Mercury (Hg0) removal capacity of fly ash-pitch activated carbon was higher than that of coconut shell activated carbon in the absence of HCl, however fly ash-pitch activated carbon showed lower mercury adsorption performance compared to the coconut shell activated carbon in the presence of HCl. It is suggest that in the absence of HCl, surface H2SO4 was produced by the adsorption of SO2, O2 and H2O on the activated carbon which then reacted with Hg0 to produce HgSO4 and enhanced the mercury adsorption capacity of the activated carbons. The presence of HCl in the feed gas increased the Hg0 removal performance of the activated carbon sorbents many fold. However, the presence of SO2 has an adverse effect on the adsorption capacity of the activated carbons in the presence of HCl.

AB - In this study, the effect of HCl on the Hg0 removal performance for coal combustion flue gas system using activated carbons prepared from fly ash and pitch and activated carbon derived from coconut shell (a commercial sample) was investigated. Mercury (Hg0) removal capacity of fly ash-pitch activated carbon was higher than that of coconut shell activated carbon in the absence of HCl, however fly ash-pitch activated carbon showed lower mercury adsorption performance compared to the coconut shell activated carbon in the presence of HCl. It is suggest that in the absence of HCl, surface H2SO4 was produced by the adsorption of SO2, O2 and H2O on the activated carbon which then reacted with Hg0 to produce HgSO4 and enhanced the mercury adsorption capacity of the activated carbons. The presence of HCl in the feed gas increased the Hg0 removal performance of the activated carbon sorbents many fold. However, the presence of SO2 has an adverse effect on the adsorption capacity of the activated carbons in the presence of HCl.

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T3 - 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development

BT - 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development

T2 - 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development

Y2 - 25 September 2006 through 28 September 2006

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