Mingpan Shao

Bio: Mingpan Shao is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Flue gas & Blast furnace. The author has an hindex of 3, co-authored 4 publications receiving 63 citations.

Removal of gas-phase Hg0 by Mn/montmorillonite K 10

Abstract: Mn/montmorillonite K 10 (Mn/MK10) prepared by impregnation method was studied to remove Hg0 in simulated coal-fired flue gas The samples were characterized by Brunauer–Emmett–Teller (BET), X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and temperature-programmed desorption (TPD) Effects of manganese loading value, reaction temperature and flue gas components on Hg0 removal efficiency were investigated The results indicated that 4% Mn/MK10 was the optimal sample with outstanding Hg0 removal efficiency over the temperature range of 100–400 °C The characteristic analysis demonstrated that amorphous MnO2 and active oxygen were crucial for Hg0 removal Besides, NO had a promoting effect due to the formation of Hg(NO3)2 The addition of only 5 ppm HCl led to excellent Hg0 removal performance as HCl enhanced Hg0 conversion to HgClx The inhibition effect of SO2 could be counteracted in the presence of NO and/or HCl The Hg0 removal capacity showed a relative decrease when H2O (g) was added to simulated flue gas Moreover, Hg0 removal performance was maintained at 80–99% (NO/SO2 = 026–171) in simulated flue gas without HCl, which appeared to be promising in industrial application

CO 2 Emission in China’s Iron and Steel Industry

Abstract: CO emissions have become a serious problem in China because of the country’s heavy reliance on fossil fuels as an energy source. The iron and steel industries, the energy consumptions of which are high compared to the rest of the world, are confronted with an increasing demand to reduce CO emissions. Data on CO emissions from iron and steel industries is a basic requirement for a certificate of CO reduction. By analyzing the production process and the influence factors of CO emissions during iron and steel production process, the scope of CO emissions were defined. Material Flow Analysis (MFA) was used to analyze carbon flow from iron and steel production process, and the CO emissions of a typical enterprise were calculated. The existing processing CO emissions reduction technologies were also analyzed, such as blast furnace top gas pressure recovery turbine (TRT), sintering waste heat power generation, converter low pressure saturated steam generation and so on. The technologies including blast furnace stock gas circulation technology, coke oven gas injection technology after reforming, carbon capture and storage technologies and so forth are considered to have a better prospect of application for CO emissions reduction.

High performance ozone decomposition over MnAl-based mixed oxide catalysts derived from layered double hydroxides

Abstract: Mesoporous and dispersed MnAl-based mixed metal oxide catalysts (MnxAlO) were fabricated via the calcination of layered double hydroxide (LDH) precursors prepared by the coprecipitation method. Their physiochemical properties were characterized and their catalytic activities for ozone decomposition were evaluated. The results indicate that the prepared MnxAlO catalysts have excellent catalytic activity owing to their large specific surface area, abundant surface oxygen vacancies and lower average Mn oxidation states. The Mn/Al atomic ratio and calcination temperature are found to significantly affect the textural properties and catalytic activity for ozone decomposition. The Mn2AlO-400 catalyst (Mn/Al = 2, calcined at 400 °C) exhibited 84.8% ozone conversion after 8 h reaction under an initial ozone concentration of 45 ± 2 ppm, 30 ± 1 °C, a relative humidity of 50% ± 3%, and a space velocity of 550 000 h−1. The results also show that the catalytic activity of Mn2AlO-400, which was deactivated owing to the accumulation of oxygen-related intermediates, was recovered by calcination at 400 °C under a N2 atmosphere for 1 h. A possible reason for catalyst deactivation and regeneration is proposed. This work provides a facile method for fabricating MnxAlO catalysts with excellent characteristics to achieve better catalytic activity, which are promising candidates for practical ozone decomposition.

CO2 emission sources, greenhouse gases, and the global warming effect

Abstract: This chapter discusses the concepts of CO2 emission, global warming, and climate change with an emphasis on their environmental impacts. Specifically, the chapter reviews different sources of atmospheric CO2 emissions and recent advances in the implementation of carbon capture and storage (CCS) technology to mitigate greenhouse gas emissions. In this chapter, the intricate relationship between CO2 emission, global warming, and climate change was explicitly explained, and CO2 mitigation strategies in selected industrial sectors such as power, cement, iron, and steel as well as the petrochemical industry were presented. An overview of process integration concepts for energy minimization in environmental sustainability studies was highlighted. The current state of research in this field was reviewed, while future prospects in the application of process synthesis techniques to decrease the high energy and material requirement during CO2 capture were suggested. Finally, CO2 emission trend since the beginning of the first industrial revolution was discussed alongside current international treaties, limitations, and forecasts about greenhouse gas emission.

A review of China’s carbon trading market

Abstract: One of the greatest constraints currently affecting China's economic development is climate change, with its associated restrictive conditions. Consequently, the application of appropriate actions to conserve energy and reduce emissions features centrally in China's core national development goals and development policies. These goals not only pose significant challenges and opportunities, but they also entail an important innovation. Under the framework of the Kyoto Protocol, the carbon trading market has emerged at a historic moment as an important measure for conserving energy and reducing emissions. Given the continuous development of the international carbon trading market over the last decade, China is also attempting to develop its own carbon trading market to further contribute to energy conservation and emissions reduction. Based on an analysis of the current situation of China's carbon trading market, relevant policy suggestions are offered here for its improvement, with the aim of providing guidelines for reducing carbon emissions, which are of mounting concern.