Articles with "clean coal" as a keyword



Reviews of clean coal conversion technology in China: Situations & challenges

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Published in 2021 at "Chinese Journal of Chemical Engineering"

DOI: 10.1016/j.cjche.2021.04.004

Abstract: Abstract It is important to develop the advanced coal to chemicals industry (ACCI) against a backdrop of coal-based energy structures, excessive imported oil and natural gas, and strict environmental constraints in China. In this study,… read more here.

Keywords: reviews clean; clean coal; technology; coal conversion ... See more keywords

Producing low-ash coal by microwave and ultrasonication pretreatment followed by solvent extraction of coal

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Published in 2018 at "Fuel"

DOI: 10.1016/j.fuel.2017.10.029

Abstract: Abstract Low ash clean coal was produced from Indian coking coal through microwave irradiation or ultrasonication followed by solvent extraction in N-methyl-2-pyrollidone (NMP) containing smaller amount of Ethylenediamine (EDA) or Monoethanolamine (MEA). Pretreatment by ultrasonication… read more here.

Keywords: extraction; ultrasonication; yield; coal ... See more keywords

New flotation flowsheet for recovering combustible matter from fine waste coking coal

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Published in 2019 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2019.03.324

Abstract: Abstract Fine waste coking coal (FWCC) is a high-ash-content by-product produced in large quantities during separation of raw coking coal and deposited in open air without treatment, causing environmental hazards and energy waste. The main… read more here.

Keywords: flotation; ash content; waste; clean coal ... See more keywords

On-line prediction of clean coal ash content based on image analysis

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Published in 2020 at "Measurement"

DOI: 10.1016/j.measurement.2020.108663

Abstract: Abstract Image analysis was adopted to estimate the ash content of clean coal, which contains approximately 3% ash. Seven features were identified based on the gray histogram of coal pictures. The Pearson correlation coefficients showed… read more here.

Keywords: ash content; clean coal; image analysis; ash ... See more keywords

Beneficiation of High Sulfur Tertiary Coal of Assam with Burkholderia sp. GR 8-02. An Eco-Friendly Approach Toward Clean Coal Production

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Published in 2024 at "Geomicrobiology Journal"

DOI: 10.1080/01490451.2024.2412005

Abstract: Abstract The high sulfur content in North-East Indian coal is one of the primary challenges with using it as an energy source. Therefore, the present study uses Burkholderia sp. GR 8-02 to explore coal beneficiation… read more here.

Keywords: spectroscopy; beneficiation; high sulfur; coal ... See more keywords

The effect of different flotation operating parameters on the froth properties and their relation to clean coal ash content

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Published in 2018 at "Separation Science and Technology"

DOI: 10.1080/01496395.2018.1444051

Abstract: ABSTRACT Froth properties and their relation to the concentrate grade play an important role in monitoring flotation running conditions and predicting flotation concentrate quality. In this paper, the correlation between the froth properties and clean… read more here.

Keywords: ash content; froth properties; clean coal; coal ash ... See more keywords

An optimized LSTM model for clean coal ash content prediction in dense medium separation scenarios on the basis of the dual decomposition method

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Published in 2024 at "International Journal of Coal Preparation and Utilization"

DOI: 10.1080/19392699.2024.2431286

Abstract: ABSTRACT To increase the accuracy of clean coal ash content prediction during the dense medium separation process and address the time lag issue encountered when measuring clean coal ash content, a prediction model based on… read more here.

Keywords: coal ash; coal; model; decomposition ... See more keywords

Key SDG7 Factors Shaping the Future of Clean Coal Technologies: Analysis of Trends and Prospects in Poland

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Published in 2024 at "Energies"

DOI: 10.3390/en17164133

Abstract: This article presents the results of an analysis aimed at verifying the relationship between the implementation of SDG Goal 7 and the use of clean coal technologies in Poland. Clean coal technologies in the United… read more here.

Keywords: coal technologies; explanatory variables; energy; coal ... See more keywords