Utilization of coal fly ash in China: a mini-review on
2020年4月28日 Coal fly ash (CFA), a solid waste produced by coal-fired thermal power plants during the combustion of pulverized coal, is currently
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A plant-by-plant strategy for high-ambition coal power phaseout
2021年3月16日 Here we detail how to structure a high-ambition coal phaseout in China while balancing multiple national needs. We evaluate the 1037 currently operating coal plants based
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The future of coal supply in China based on non-fossil energy ...
2021年4月1日 In the context of low-carbon development, clean coal technologies are taken into consideration in the model. Moreover, two strategies of promoting the development of non
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How will China's coal industry develop in the future? A
2021年11月15日 The comprehensive development of China's coal industry focuses on energy supply security, safe and efficient mining processes, low-disturbance environment and market
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Chemical Looping Combustion of Coal in China:
2020年5月15日 The reactivity of a physically mixed CuO and Fe 2 O 3 (with a mass ratio of 1:3) oxygen carrier toward a Chinese lean coal was first evaluated by thermogravimetric coupled Fourier transform infrared spectroscopy
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Investigation of the kinetics of spontaneous combustion of the
2021年1月13日 It is known that the coal is rich in the Xinjiang region of China, which has experienced severe coal spontaneous combustions events. These events not only pose a
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The Rock-Eval Pyrolysis and Hydrocarbon Generation Kinetic of
2019年10月1日 In this study, we chose four coal samples from different areas in China including Fuxing, Guangyuan, Fushun and Taiyuanzu. The results show that Fushun has the
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Directions for Sustainable Development of China’s Coal
2023年4月12日 The main directions for the sustainable development of China’s coal industry are to ensure the safety of coal energy storage and improve the level of safety supervision; coordinate the development of regional energy;
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Lessons from China’s overseas coal exit and domestic
2023年3月16日 The challenges in China’s overseas coal engagement allowed Chinese-led institutions that were tasked with green development, such as the Belt and Road Initiative International Green Development Coalition (BRIGC)
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China's key industries could hit peak coal use by 2024 - govt ...
2021年11月17日 China's major coal consuming industries, including power, steel, cement and coal chemical production, could hit peak use of the dirty fossil fuel around 2024, a government
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Lithium activation pretreatment mechanism and
2024年1月8日 For example, Finkelman (1993) found 370 µg/g lithium in some coal samples from the United States, and Sun et al. (2013) found 152 µg/g lithium in the No. 9 coal from the Pingshuo mine in China. For a long time, fly ash, as
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Effect of particle size and thermal activation on the coal gangue
2021年7月15日 Coal gangue is a common type of solid waste that is separated during coal mining and washing, which is associated with the coal seam during the formation of coal [7].The solid waste discharged from the production of coal mine has a certain impact on environmental protection, and it is also the largest amount of solid waste generated and accumulated in
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Coal-based activated carbon prepared by H2O activation process
2024年5月15日 The scalable production of high grade activated carbon from abundant coal for supercapacitors application is an efficient way to achieve high value-added utilization of coal sources. However, this technology is challenging due to lack of comprehensive understanding on the mechanism of activation process and effect of external factors. In this paper, the effect of
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Utilization of coal fly ash in China: a mini-review on challenges
2020年4月28日 Coal fly ash (CFA), a solid waste produced by coal-fired thermal power plants during the combustion of pulverized coal, is currently one of the largest solid wastes in China (Yao et al. 2015). In 2018, the annual output of CFA in China exceeded 550 million tons, and owing to insufficient utilization, the total accumulated CFA has exceeded 3 billion tons.
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Analysis: What does China’s coal push mean for its climate goals?
2022年3月29日 Why does China use coal? China is the world’s largest consumer, producer and importer of coal, with its consumption and production each accounting for around half of the global totals.. Coal is widely used in China for generating electricity, despite the country’s rapid growth of renewable energy in recent years.. According to China’s National Bureau of
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Effect of soaking on coal oxidation activation energy and thermal
The combustion activation energy of coal before and after soaking is basically the same,which indicates that soaking process does not affect the burning stage of coal. ... et al. Effect of soaking on coal oxidation activation energy and thermal effect[J]. Journal of China Coal Society, 2018, (9): 2518-2524. DOI: 10.13225/j.cnki.jccs.2017.1443
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Effects of coal rank, Fe3O4 amounts and activation temperature
2010年11月1日 Tel: 86 10 62331014 E-mail address: [email protected] doi: 10.1016/S1674-5264(09)60298-2 Effects of coal rank, Fe 3 O 4 amounts and activation temperature on the preparation and characteristics of magnetic activated carbon YANG Mingshun, XIE Qiang * , ZHANG Jun, LIU Juan, WANG Yan, ZHANG Xianglan, ZHANG Qingwu School of Chemical
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Preparation of Activated Carbon from the Residue of Plasma
This work mainly evaluated the feasibility of preparation of activated carbon from the residue of plasma pyrolysis of coal from Karamay, China, by steam activation. The demineralization was brought in to analyze the effect of ash content on the porosity development of activated carbon. The maximum Brunner–Emmet–Teller surface area of the activated carbon obtained from the
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Study on modes of occurrence and selective leaching of lithium in coal
DOI: 10.1016/j.cej.2024.148941 Corpus ID: 267087587; Study on modes of occurrence and selective leaching of lithium in coal gangue via grinding-thermal activation @article{Chen2024StudyOM, title={Study on modes of occurrence and selective leaching of lithium in coal gangue via grinding-thermal activation}, author={Hangchao Chen and Lei
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Effect of Na2CO3 additive on the activation of coal gangue for
2014年9月10日 The effect of Na 2 CO 3 additive on the activation of coal gangue for alumina extraction was investigated. The discussion on the action mechanisms was performed by the means of TG-DSC, XRD and XRF.The results showed that the calcined coal gangue with the addition of Na 2 CO 3 improved the alumina extraction significantly. At the calcination
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Mechanism of thermal activation on granular coal gangue and its
Coal gangue (CG) is a kind of solid waste discharged from the process of coal mining and washing without efficient utilization. Motivated by using the CG as supplementary cementitious materials (SCMs) for the partial substitution of cement, the CG was thermally activated via calcining under high temperature and the corresponding mechanism was discussed.
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Synthesis of porous carbon derived from coal tar residue via
2024年8月5日 Porous carbon was prepared from extracted residue in coal tar residue with K 2 FeO 4 activation. ... China has formulated rigorous effluent standards of Tl(I) (as low as 5 μg/L) in industrial wastewater because of the high toxicity associated with Tl(I), and the removal of Tl(I) from wastewater has become a key issue.
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Evaluation Model on Activation Classification of Coal Mine Goaf
The construction and expansion of high-speed railway networks in China has been occurring at a fast pace, resulting in some lines crossing through coal mine goaf sites. However, the embankment and train loads may trigger the activation of the coal mine goaf ground, posing a threat to traffic safety. To ensure the safety of construction and railway lines, an evaluation
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Thermal activation and structural transformation mechanism of ...
The benefits of industrial solid waste as a supplementary cementitious material in the manufacture of eco-efficient cement are evident in the context of sustainable and green development. Coal gangue from the Jungar coalfield, Inner Mongolia, China, was characterized and activated thermally at 500 °C–1000 °C. This study investigated the effects of thermal activation
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Exploring microwave activation as a novel method for activating coal
The mechanism and optimum temperature of microwave activation of coal gangue were revealed. ... Research and demonstration of key technology and equipment for scale decomposition and gradation of coal gasification ash and slag of China (2023YFC3904303), Key project of National Natural Science Foundation of China (52234004).
MoreSustainable and clean utilization of coal gangue: activation and ...
Coal gangue, a by-product produced during the coal processing, has a serious impact on the environment. Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value. In this study, the formation mechanism and influencing factors of coal-gangue-based silicon fertilizer was studied using XRD and FT-IR
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Mechanical activation of coal gasification slag for one-part
2024年1月12日 Mechanical activation of coal gasification slag for one-part geopolymer synthesis by alkali fusion and component additive method. ... Measurements of the leachability of potentially hazardous trace elements from solid coal gasification wastes in China. Sci. Total Environ., 759 (2021), Article 143463, 10.1016/j.scitotenv.2020.143463.
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A high value utilization process for coal gasification slag ...
Coal gasification coarse slag (CGCS) is solid waste generated during coal gasification. The mainly treatment method of CGCS is storage and landfill, which causes severe environmental pollution and waste of land resources. Sodium silicate can be synthesized using CGCS after impurities are removed for the high content of amorphous silica. In this work, a novel method
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Synthesis and evaluation of iron-carbon composites derived from coal
2024年10月1日 Synthesis and evaluation of iron-carbon composites derived from coal gasification fine slag for peroxydisulfate activation in rhodamine B removal. Author links open overlay panel Yujia Wang a, Zhiqiang Xu a b, Yanan Tu a b, Suqian Gu a, Zhenhui Su ... with the gradual progress of coal gasification technology in China, CGFS production ...
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Thermal activation and structural transformation mechanism of ...
Thermal activation and structural transformation mechanism of kaolinitic coal gangue from Jungar coalfield, Inner Mongolia, China 来自 国家科技图书文献中心 喜欢 0
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