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·Coal as an important energy resource has made a significant contribution to social development and economic growth for decades With the excessive utilization of high quality coal resources the relative amount of inferior coals in total coal reserves such as high sulfur coals has been increasing
·Surface/open cast mining and deep underground mining are considered two basic methods for coal extraction globally The rising trend of coal mining activities has resulted in the accumulation of mining and processing wastes with low carbon levels over the past few decades [6] Fig 1 presents different life cycle stages of coal with details of wastes generated
·The use of coal is negatively perceived since the use of fossil fuels in power generation and other industry sectors contributes significantly to the CO 2 emissions worldwide Of the main fossil fuels coal has the lowest H C ratio and consequently coal has the highest CO 2 footprint per unit of combustion energy produced Coal also contains percentage levels of
·utilization Coal full process SO 2 emission accounting model in which coal production raw coal processing logistics and transportation conversion and utilization have a large amount of SO 2 gas discharge In the process of resource utilization the comprehensive utilization of coal gangue and mine water has certain certainty for SO 2 The SO 2
The specific purpose of this project is to 1 comprehensively review the research progress in the exploration development and utilization of coal based natural gas; 2 solve the bottleneck problem encountered in deep coalbed methane exploration and development; 3 overcome the obstacles of CO 2 geological storage and efficient mining of
·Describing and eliminating the health hazards of coal processing requires an understanding of the nature of the raw materials products by products the type of pollutants produced the design of the plant and its operating methods Wadden 1976 The structure of coal was described in Chapter 6 and is thought to be a highly linked amorphous polymer consisting
·Recently considerable research has examined problems associated with the deep resource extraction orientation for the gradual depletion of shallow mineral resources especially coal resources [1
·The treatment and utilization of coal gangue one of the main solid wastes produced during coal mining are of great significance in environmental protection and resource development In the contemporary context of the carbon neutralization strategy due to the property of the carbon in coal gangue it is necessary to be cautious of the carbon effect during
The highly efficient treatment of coal mine water with low energy consumption contributes to much safer and more efficient coal mining At present mine water processing at underground is still limited for its small treatment water yield large land coverage and high operation cost in ground treatment high drainage costs when mine water is discharged into the surface water system
·The chapter coal washing efficiency is devoted exclusively to describe different criteria used for the evaluation of processing plant performance Coal washing practices and recent
·This paper analyzed the current situation and development trends of energy consumption and carbon emissions and the current situation and development trend of coal consumption in China In the context of recently established carbon peak and carbon neutralization targets this paper put forward the main problems associated with the green and
·The evolving energy landscape marked by the increased penetration of renewable sources and the introduction of new low carbon technologies places a premium on flexibility not just in the background energy systems but also within the process designs of the foreground systems especially in chemical processing Luo et al 2022 Operational
·Data from the China Coal Processing and Utilization Association CCPUA show that China s current cumulative stockpile of bulk solid waste is about 60 billion tons with an annual new stockpile of nearly 3 billion tons Against this background the use of CSW for coal mine filling mining has been widely promoted in China in recent years
·This Review provides an in depth overview of carbon dioxide CO2 capture utilization and sequestration CCUS technologies and their potential in global decarbonization efforts The Review discusses the concept of CO2 utilization including conversion to fuels chemicals and minerals as well as biological processes It also explores the different types of
Proceedings of the Fifth International Conference on Processing and Utilization of High Sulfur Coals October 25 28 1993 Lexington Kentucky Edited by Parekh
·As is known strategic metal resources are extremely important in economic development and defense security Coal is a particular sedimentary organic rock in which strategic metals Ge U Ga Li and rare earth elements and Y can be enriched and subsequently form large or super large ore deposits under some specific geological conditions
·China is a big country in the production and consumption of rice in the world However for a long time China s rice processing is only in the primary processing state that meets people s demand for rations and the level of comprehensive utilization of deep processing and its by products is low This paper reviews the main raw and by products of rice such as
·In this study the coal gangue collected from Jungar coalfield contains 437 ppm of lithium which is significantly higher than the average content of coal ppm in China Lithium extraction from the coal gangue was systematically investigated via the integrated process of roasting and acid leaching with the mechanism analysis
·Coal Processing and Utilization CRC Press Balkema 2016 Free ebook download as PDF File pdf Text File txt or read book online for free Scribd is the world s largest social reading and publishing site
·This study investigates multiple types of water resources in the western mining area in China their supply demand balance by using the same dimension gray recurrence dynamic model GM 1 1 and
·With the increasing exploitation scope and intensity the shallow resources would be exhausted in the future; and the deep mining will become an essential choice In deep tunnel engineering the heat harm becomes one of the main barriers Investigations on high temperature coal mine have been done in Northern China with the constructing of three
·The energy conversion efficiency of coal utilization is a focal point in modern energy management practices and in academic literature This paper explores life cycle energy efficiency of coal LEEC which encompasses six distinct stages from the design of coal mines to the comprehensive reuse of resources
·In the framework of Global Warming strategies the safe utilization of carbon dioxide CO 2 is an important component of the Carbon Capture Utilization and Storage CCUS the analysis of the jetting process of supercritical CO 2 S CO 2 it is of paramount importance to accurately predict the temperature and pressure characteristics of the jetting
·In addition the degree of deep processing and effective utilization of HTCT needs improving which urgently requires in depth understanding and effective treatment of HTCT 150 kt/a coal tar deep processing project completed and put into operation Phase II 2009 Qitaihe Baotailong Coal Chemical Industry Co Ltd 300 kt/a of coal tar
·This paper describes in detail the processing and higher value utilization of the five main by products corn gluten meal corn husks corn steep liquor corn germ and fuel ethanol by product
