Geng Chen

Wuhan University of Science and Technology

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Linbo Qin

Wuhan University of Science and Technology

Bo Zhao

Universidad del Noreste

Jun Han

Wuhan University of Science and Technology

Wangsheng Chen

Wuhan University of Science and Technology

Zijiang Xiong

Wuhan University of Science and Technology

Jia Song

Wuhan University of Science and Technology

Qiang Zhang

Institute of Geology and Geophysics

Yuxin Han

First Affiliated Hospital Zhejiang University

Yangshuo Liang

Wuhan University of Science and Technology

Jun Liu

Taiyuan University of Technology

Cooperative Institutions

Wuhan University of Science and Technology

Zhejiang University

University of South China

RWTH Aachen University

Institute of Rock and Soil Mechanics

Universidad del Noreste

Southwest University of Science and Technology

Xi'an University of Architecture and Technology

Zhejiang Wanli University

Taizhou University

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Pollution characteristics and health risk assessment of heavy metals in dust surrounding a coal-fired power plant

Acta Scientiarum Naturalium Universitatis Sunyatseni (2016)

Geng Chen Jun Liu Yang Li-hui Zhaoyue Ke

Coal dust

10.13471/j.cnki.acta.snus.2016.01.019

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Citations (2)

Case Study of Coal-fired Boiler Renovating to Biomass-fired Boiler

Industrial Boiler (2011)

Geng Chen

Pulverized coal-fired boiler

Coal fired

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Preparation of Fe and Ca Enriched Sorbents Derived from Coal Fly Ash for Arsenic Capture from Flue Gas

Energy & Fuels (2021)

Linbo Qin Jia Song Yangshuo Liang Bo Zhao Geng Chen

Fly ash has been regarded as a potential sorbent for capturing trace elements from flue gas due to its high concentrations of Ca and Fe components. In this paper, a low-cost sorbent for capturing arsenic was prepared by gravity separating coal fly ash. When bromoform was used as the solution for separating the high-sulfur fly ash, Ca, S, and Fe contents in the heavy fly ash (A3) were 24.02, 19.11, and 12.8%, while those of the raw fly ash (A1) were 8.06, 8.97, and 7.63%, respectively. Due to the enrichment of Ca and Fe, the arsenic capturing capacity of the fly ash sorbents under 700 °C was increased from 626 (A1) to 702 μg/g (A3). When the flue gas contained 1500 ppm SO2, the arsenic adsorption capacity of A3 further promoted to 759 μg/g. Meanwhile, it was found that over 48% arsenic existed as As(V) in the used sorbent (A3). XPS spectra also proved that there was an interaction of Ca or Fe and arsenic, which was attributed to arsenic removal from the flue gas.

10.1021/acs.energyfuels.1c00874

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Citations (13)

Effect of coal blending on arsenic and fine particles emission during coal combustion

Journal of Cleaner Production (2021)

Bo Zhao Geng Chen Linbo Qin Yuxin Han Qiang Zhang

Clean coal technology

10.1016/j.jclepro.2021.127645

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A Model for Predicting Arsenic Volatilization during Coal Combustion Based on the Ash Fusion Temperature and Coal Characteristic

Energies (2021)

Bo Zhao Geng Chen Zijiang Xiong Linbo Qin Wangsheng Chen

Arsenic emission from coal combustion power plants has attracted increasing attention due to its high toxicity. In this study, it was found that there was a close relationship between the ash fusion temperature (AFT) and arsenic distribution based on the thermodynamic equilibrium calculation. In addition to the AFT, coal characteristics and combustion temperature also considerably affected the distribution and morphology of arsenic during coal combustion. Thus, an arsenic volatilization model based on the AFT, coal type, and combustion temperature during coal combustion was developed. To test the accuracy of the model, blending coal combustion experiments were carried out. The experimental results and published data proved that the developed arsenic volatilization model can accurately predict arsenic emission during co-combustion, and the errors of the predicted value for bituminous and lignite were 2.3–9.8%, with the exception of JingLong (JL) coal when combusted at 1500 °C.

Volatilisation

Bituminous coal

10.3390/en14020334

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Citations (5)