Shihao Ma

Hebei University

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Lei Deng

Xi'an Jiaotong University

Defu Che

Xi'an Jiaotong University

Yuan Tie

Xi'an Jiaotong University

Zhengrong Zhu

GlaxoSmithKline (United States)

Chao Xu

China University of Mining and Technology

Jiahao Jiang

Southeast University

Jun Hu

East China University of Science and Technology

Jianqi Chen

Sun Yat-sen University

Tong Yang

Anhui University of Finance and Economics

Kai Zhang

Beijing Tian Tan Hospital

Cooperative Institutions

Xi'an Jiaotong University

China University of Mining and Technology

East China University of Science and Technology

China University of Mining and Technology - Beijing

Chinese Academy of Sciences

Zhejiang University of Technology

State Key Laboratory of Chemical Engineering

Tsinghua University

Institute of High Energy Physics

Qingdao University

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Gas extraction of coal seam roof fractured zone in China: A review

Fuel (2023)

Chao Xu Tong Qing Yang Kai Wang Qiang Fu Shihao Ma

Coalbed Methane

Directional Drilling

10.1016/j.fuel.2023.129930

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Citations (18)

Research on the evolution law of hot spots in the field of coal seam hydraulic fracturing based on bibliometric analysis: review from a new scientific perspective

Environmental Science and Pollution Research (2023)

Chao Xu Tong Yang Kai Wang Shihao Ma Mingqing Su

10.1007/s11356-023-28589-4

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Citations (7)

Process of removing heavy metal ions and solids suspended in micro-scale intensified by hydrocyclone

Journal of Cleaner Production (2020)

Wenjie Lv Kaiqing Zhao Shihao Ma Lingkai Kong Zhihong Dang

Industrial wastewater treatment

Filtration (mathematics)

Hydrocyclone

10.1016/j.jclepro.2020.121533

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Citations (20)

Numerical Investigation on Cofiring Characteristics of Biomass Syngas and Coal in a 660-MW Tower Boiler

Journal of Energy Engineering (2022)

Lei Deng Shihao Ma Jiahao Jiang Yuan Tie Yan Zhang

Cofiring biomass syngas (BS) with pulverized coal under the oxy-fuel condition is a promising technology, which could encourage the utilization of biomass energy and reduce the emission of greenhouse gases. To investigate cofiring characteristics of biomass syngas and coal, a numerical study was conducted. The influences of oxy-fuel condition, syngas quality, and injection position on temperature distributions and flue gas components in boiler furnace were analyzed. To predict cofiring characteristics accurately under oxy-fuel conditions, a new refined weighted-sum-of-gray-gases model, HCN oxidation model, and NO-char reaction model were used. The simulation results show that syngas reburning and oxy-fuel conditions could reduce NO emission. The NO emission in O2/CO2 conditions is higher than that in air. Biomass syngas with higher calorific values contributes to higher furnace temperatures. Besides, biomass syngas with higher hydrocarbon components is beneficial to lower NO emission. Compared to pure coal combustion, NO concentration at the furnace outlet reduces by 40.2%, 69.0%, and 35.2% in the cases of cofiring with Type A, B, and C biomass syngas at a cofiring ratio of 10%, respectively. The injection position of biomass syngas also has crucial impacts on cofiring characteristics and NO emissions. NO emission has the lowest value when the biomass syngas is injected at the bottom level of the reburn zone. This study could provide a reference for optimization of boiler design and operation when cofiring biomass syngas with pulverized coal under the oxy-fuel condition.

Cofiring

Air preheater

Heat of combustion

10.1061/(asce)ey.1943-7897.0000829

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Citations (5)

Experimental study on transformation of alkali and alkaline earth metals during biomass gasification

Journal of the Energy Institute (2022)

Lei Deng Xiaole Huang Yuan Tie Jiahao Jiang Kai Zhang

Alkaline earth metal

Particle (ecology)

Biomass gasification

10.1016/j.joei.2022.06.003

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Citations (21)

Deactivation Influence of HF on the V₂O₅–WO₃–TiO₂ SCR Catalyst

Energy & Fuels (2021)

Lei Deng Zhengrong Zhu Yikun Wang Shihao Ma Yan Zhang

The electrolytic aluminum waste contains harmful components, such as fluorides. Sending it to coal-fired boilers seems to be a prospective scheme to achieve the harmless treatment of waste. However, the negative influence of F on the SCR catalyst should be examined. In this study, a fixed-bed reactor system is built up to study the deactivation of the V2O5–WO3–TiO2 SCR catalyst by HF when the electrolytic aluminum waste is co-fired with coal in boilers. The activity of the catalyst is evaluated by the NH3-SCR reaction. The deactivation mechanism is investigated through tests of NH3 temperature-programmed desorption, H2 temperature-programmed reduction, X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller (BET), in situ diffuse reflectance infrared Fourier transform spectroscopy, and Raman spectroscopy. The results show that for deactivated catalyst samples, the SCR catalytic activity drops obviously, especially when they work at lower temperatures. Although HF could enhance Brønsted acid sites, increase the Oα (adsorbed oxygen) concentration, and facilitate the Lewis acid site formation, it would not compensate for decreases of V5+ on the catalyst surface and BET surface area, which results in an activity reduction of the catalyst sample.

Selective catalytic reduction

BET theory

10.1021/acs.energyfuels.0c03990

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Citations (9)