Experimental study on mercury removal from coal-fired flue gas by sulfur modified biomass coke with mechanochemical method

In this paper, magnetic beads were separated from two different power plants fly ash by magnetic separation, and the separated magnetic beads were analyzed by XRD. In a self-built fixed-bed system, the experiments that magnetic beads from two power plants, α-Fe2O3 and γ-Fe2O3 affect formation distribution of mercury in flue gas were carried out. The results showed that the magnetic beads in fly ash have a certain capacity to oxidize the mercury in flue gas, and the γ-Fe2O3 has greater influence on the species distribution of mercury than α- Fe2O3.

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Experimental Study on the Spray of Mercury Removal Performance of Flue Gas Desulfurization Wastewater

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.807-809.1483 ◽

2013 ◽

Vol 807-809 ◽

pp. 1483-1488

Author(s):

Si Wei Pan ◽

Nian Tang ◽

Jiang Jun Hu ◽

Ji Fu Kuang ◽

Min Qi ◽

...

Keyword(s):

Experimental Study ◽

Fly Ash ◽

Flue Gas ◽

Cost Savings ◽

Chloride Ion ◽

Elemental Mercury ◽

Flue Gas Desulfurization ◽

Mercury Removal ◽

Modified Fly Ash ◽

Desulfurization Wastewater

For coal-fired power plant boiler flue gas desulfurization wastewater’s actual spraying proposed combination bag house dust while mercury removal process. Experimental study of the coal-fired boiler flue gas spraying chlorine ions and other halogens desulfurization wastewater modified fly ash flue gas mercury performance. Studies showed that desulfurization wastewater fly ash on chloride ion enhanced oxidation of elemental mercury, with the increase in the amount sprayed desulfurization wastewater, flue gas mercury capacity increased. Desulfurization wastewater add another halogen element can promote flue gas mercury performance, the effect of iodine was the most significant, followed by bromine. The desulfurization wastewater as a modified liquid sprayed into the flue modified fly ash, fly ash can improve mercury removal performance, eliminate the need for desulfurization wastewater treatment, cost savings, achieve desulfurization wastewater recycling.

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Mercury removal from coal-fired flue gas of high-sulfur petroleum coke activated by pyrolysis and mechanochemical method

Chemical Engineering Journal ◽

10.1016/j.cej.2021.132154 ◽

2021 ◽

pp. 132154

Author(s):

Anjun Ma ◽

Shilin Zhao ◽

Hui Luo ◽

Zhiqiang Sun ◽

Xingyu Xie ◽

...

Keyword(s):

Petroleum Coke ◽

Flue Gas ◽

Mercury Removal ◽

Mechanochemical Method

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Bench-Scale Experimental Study on the Effect of Flue Gas Composition on Mercury Removal by Activated Carbon Adsorption

Energy & Fuels ◽

10.1021/ef030041r ◽

2003 ◽

Vol 17 (6) ◽

pp. 1528-1535 ◽

Cited By ~ 36

Author(s):

Rong Yan ◽

Yuen Ling Ng ◽

David Tee Liang ◽

Chun Siong Lim ◽

Joo Hwa Tay

Keyword(s):

Experimental Study ◽

Activated Carbon ◽

Flue Gas ◽

Mercury Removal ◽

Gas Composition ◽

Activated Carbon Adsorption ◽

Bench Scale ◽

Carbon Adsorption

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Innovative Mercury Removal From Incinerator Flue Gas

Proceedings of the Water Environment Federation ◽

10.2175/193864715819541143 ◽

2015 ◽

Vol 2015 (13) ◽

pp. 4166-4170

Author(s):

Maureen O’Shaughnessy ◽

Frank Sapienza ◽

Peter Rynkiewicz ◽

Brian Whitaker ◽

Stephen M Bennett

Keyword(s):

Flue Gas ◽

Mercury Removal

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Low-Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas

Energies ◽

10.3390/en14082174 ◽

2021 ◽

Vol 14 (8) ◽

pp. 2174

Author(s):

Marta Marczak-Grzesik ◽

Stanisław Budzyń ◽

Barbara Tora ◽

Szymon Szufa ◽

Krzysztof Kogut ◽

...

Keyword(s):

Flue Gas ◽

Low Cost ◽

Elemental Mercury ◽

Mercury Content ◽

Flue Gases ◽

Mercury Removal ◽

Gas Purification ◽

Gas Temperature ◽

Corn Straw ◽

Flue Gas Purification

The research presented by the authors in this paper focused on understanding the behavior of mercury during coal combustion and flue gas purification operations. The goal was to determine the flue gas temperature on the mercury emissions limits for the combustion of lignites in the energy sector. The authors examined the process of sorption of mercury from flue gases using fine-grained organic materials. The main objectives of this study were to recommend a low-cost organic adsorbent such as coke dust (CD), corn straw char (CS-400), brominated corn straw char (CS-400-Br), rubber char (RC-600) or granulated rubber char (GRC-600) to efficiently substitute expensive dust-sized activated carbon. The study covered combustion of lignite from a Polish field. The experiment was conducted at temperatures reflecting conditions inside a flue gas purification installation. One of the tested sorbents—tire-derived rubber char that was obtained by pyrolysis—exhibited good potential for Hg0 into Hg2+ oxidation, resulting in enhanced mercury removal from the flue. The char characterization increased elevated bromine content (mercury oxidizing agent) in comparison to the other selected adsorbents. This paper presents the results of laboratory tests of mercury sorption from the flue gases at temperatures of 95, 125, 155 and 185 °C. The average mercury content in Polish lignite was 465 μg·kg−1. The concentration of mercury in flue gases emitted into the atmosphere was 17.8 µg·m−3. The study analyzed five low-cost sorbents with the average achieved efficiency of mercury removal from 18.3% to 96.1% for lignite combustion depending on the flue gas temperature.

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