• Chemical modification with aldehydes on the

    Author: Ming Sun, Linyang Wang, Jiaojiao Zhong, Qiuxiang Yao, Huiyong Chen, Linyu Jiao, Qingqing Hao, Xiaoxu...
  • Two-stage reduction and reductive alkylation of coal

    Author: M. Kozłowski
  • Modification of coal-tar pitch with 10-Undecenal to

    Modification of coal-tar pitch with 10-Undecenal to reduce the content of environmental pollutants of polycyclic aromatic hydrocarbons. ... The effects of modifier and catalyst quantities, reaction temperature and reaction time on the reduction efficiency of 16 EPA priority PAHs were investigated.

  • Modification of boiler operating conditions for

    Modification of boiler operating conditions for mercury emissions reductions in coal-fired utility boilers ... Coal-fired power plants represent a significant fraction of the anthropogenic emissions of mercury into the atmosphere. ... since they affect the thermo-chemical conditions for mercury formation and reduction. However, operation of ...

  • Tarrawonga Coal Mine Life of Mine Modification

    The Tarrawonga Coal Mine is an open cut coal mine which has been in operation since 2006. Run-of-mine (ROM) coal is crushed and screened on-site, and the sized ROM coal is loaded onto on-highway trucks for transport via the Approved ROM Coal Transport Route to the Whitehaven Coal Handling and Preparation Plant.

  • Study of Enhancing Desulphurization Mechanism for High ...

    Modification mechanisms of coal and pyrite surface were analyzed. The mesult shows that the method of electrolysis reduction to enhance flotation can significantly decrease the sulphur contentin cleanings of flotation, with the desulphurization of Beisu coal

  • Modification of coal-tar pitch with 10-Undecenal to

    Coal-tar pitch (CTP) is a solid residue derived from coal tar distillation process, and its yield is generally in the range of 50–60 wt% of coal tar. Coal tar yield usually accounts for ∼3–5 wt% of coal (dry basis) for producing coke. coke yield is usually in the range of ∼75–80 wt% of dry basis coal

  • Tarrawonga Coal Mine Life of Mine Modification

    The main activities associated with the Modification include: • ROM coal production rate increase from 3.0 to 3.5 million tonnes per annum (Mtpa); • increase in ROM coal transported along the Northern Section of the Approved ROM Coal Transport Route from 3.0 to 3.5 Mtpa; • reduction

  • Tarrawonga Coal Mine Life of Mine Modification

    Tarrawonga Coal Mine Life of Mine Modification – Groundwater Assessment 52 10 RECOMMENDATIONS The report has shown that the Modification will have a reduction in impact on the groundwater and associated surface water compared with the Approved case. This section discusses mitigation and management strategies and proposed monitoring.

  • WILPINJONG COAL MINE POLLUTION REDUCTION

    2017-3-22  The Modification involves an incremental increase in the approved maximum run-of-mine (ROM) coal mining rate from 13 million tonnes per annum (Mtpa) to 15 Mtpa, a small increase in the maximum annual rate of overburden mined, expansion of the Coal Handling and Preparation Plant (CHPP), and ... Wilpinjong Coal Pollution Reduction Program . ...

  • Moisture Reduction of Coal by Surface Chemical

    Lower transportation costs, improved handling and better utilization efficiency are some of the reasons that make low moisture coal product desirable. There has been considerable interest in the development of effective coal dewatering techniques to achieve this result. One avenue of considerable merit for enhancing dewatering processes is by modification of the surface chemistry of...

  • Experimental Study on Mercury Reduction in Coal-fired Flue ...

    carbon made from coal are 63.38% and 58.65% respectively.After chemical modification with NaBr,the adsorption efficiency of modified activated carbon made from wood greatly increases and the flue gas mercury adsorption efficiency could reach ...

  • Section 75W modification - Approvals and Licences

    2020-6-3  01. Ulan Coal Mine MOD4 - Environmental Assessment: 26/08/2019: 15.9 MB: 02. Ulan Coal Mine MOD4 - Appendix A - Risk Assessment: 26/08/2019: 0.1 MB: 03. Ulan Coal Mine MOD4 - Appendix C - Landowner consent letter

  • 14 Microbial Degradation and Modification of Coal

    2004-4-15  Modification of Hard Coal 3.1 Bacteria Certain bacteria can grow by utilizing hard coal as sole carbon source. In a screening of about 3100 cultivation experiments, micro-398 14 Microbial Degradation and Modification of Coal Tab. 1 Advances in coal microbiology and biotechnology during the past two decades Year Achievement Reference(s)

  • 6.2.6 Wilpinjong Coal Modification 6

    2015-7-17  1. the report by the Statutory Planner on the Wilpinjong Coal Mine Modification 6 be received; 2. Council make a submission in accordance with this report. Executive summary . Wilpinjong Coal Pty Ltd (WCPL) has lodged an application for the modification of development consent 05-0021 with the NSW Department of Planning and Infrastructure (DoPI).

  • Transfer Coal Conveyor Shaft Optimization Analysis and ...

    2018-7-12  This work present the optimization analysis of transfer coal conveyor shaft and modification in sprocket structure. An investigation will be performed to determine the failure root cause and factors affecting on transfer coal conveyor shaft. ... Optimization of shaft is done by selecting better material for weight reduction and better strength ...

  • Research for Innovative Emission Reduction

    2020-7-6  Original Closing Date: 04/06/2020. Research and development under this Funding Opportunity Announcement is intended to increase the beneficial use and advance the management of Coal Combustion Residuals, thereby reducing the volume of Coal Combustion Residuals needed to be disposed of in impoundments while protecting the environment and the health and safety of the public.

  • Combustion modification proves its worth - Modern

    Combustion modification is generally the lowest cost NOx control method available, in particular retrofitting low NOx burners, and they have been retrofitted to many utility boilers. ... particularly the premixing which can occur at the base of the flame as the primary pulverised coal/air stream entrains secondary combustion air. FlamemastEER ...

  • NOx Reduction Technologies - American Coal Council

    Engineered coal fuels can also play a role in reducing NOX emissions through improving combustion efficiencies. See the Engineered coal fuels technologies Issues page on this website for more information.) Combustion Modification. Lox-NO X Burners – NO X is formed when heat forces nitrogen atoms apart and they recombine with oxygen atoms.

  • AN OVERVIEW OF TECHNOLOGIES FOR REDUCTION OF

    2018-6-22  Reduction (%) $/Ton $/kW Control Technologies Low NOX Burners –Oil Gas Boilers/Process Heaters 40-60 125-250 2-4 Low NOX Burners – Coal Boilers 40-60 300-500 5-10 Over Fire Air (close coupled) Boilers 30-50 200-450 4-7 Over Fire Air (separated) Boilers 40-60 250-500 5-10 Reburn Coal Fired Boilers 40-50 500-800 10-12

  • Moisture Reduction of Coal by Surface Chemical

    Lower transportation costs, improved handling and better utilization efficiency are some of the reasons that make low moisture coal product desirable. There has been considerable interest in the development of effective coal dewatering techniques to achieve this result. One avenue of considerable merit for enhancing dewatering processes is by modification of the surface chemistry of...

  • Section 75W modification - Approvals and Licences

    2020-6-3  01. Ulan Coal Mine MOD4 - Environmental Assessment: 26/08/2019: 15.9 MB: 02. Ulan Coal Mine MOD4 - Appendix A - Risk Assessment: 26/08/2019: 0.1 MB: 03. Ulan Coal Mine MOD4 - Appendix C - Landowner consent letter

  • 14 Microbial Degradation and Modification of Coal

    2004-4-15  Modification of Hard Coal 3.1 Bacteria Certain bacteria can grow by utilizing hard coal as sole carbon source. In a screening of about 3100 cultivation experiments, micro-398 14 Microbial Degradation and Modification of Coal Tab. 1 Advances in coal microbiology and biotechnology during the past two decades Year Achievement Reference(s)

  • Guidelines for NOx Control by Combustion

    May 1980 EPA-600/8-80-027 GUIDELINES FOR NOX CONTROL BY COMBUSTION MODIFICATION FOR COAL-FIRED UTILITY BOILERS Procedures for Reduction of NOX Emissions and Maximization of Boiler Efficiency Guidelines Intended — As a Reference for Combustion Modification Techniques and Procedures for IMOX Emission Control — For Use by Utility Personnel in Designing Individual NOX Reduction

  • WILPINJONG COAL MINE POLLUTION REDUCTION

    2017-3-22  The Modification involves an incremental increase in the approved maximum run-of-mine (ROM) coal mining rate from 13 million tonnes per annum (Mtpa) to 15 Mtpa, a small increase in the maximum annual rate of overburden mined, expansion of the Coal Handling and Preparation Plant (CHPP), and ... Wilpinjong Coal Pollution Reduction Program . ...

  • Effects of the modified kaolin sorbents on the reduction of ...

    2017-12-2  X-MOL提供的期刊论文更新,Fuel——Effects of the modified kaolin sorbents on the reduction of ultrafine particulate matter (PM0.2) emissions during pulverized coal combustion,Wei Sun, Xiaowei Liu, Yishu Xu, Yu Zhang, Dong Chen, Zhenguo Chen

  • GER-4192 - Combustion Modification: An Economic ...

    2019-10-4  Reduction (SCR). The regulations and implica-tions for NOx reduction requirements are dis-cussed first. Then, the Reburn and Advanced Reburn technologies are presented including design factors and performance experience on coal-fired utility applications. The economic tradeoffs between Combustion Modification and SCR alternatives are then ...

  • NOx Reduction Technologies - American Coal Council

    Engineered coal fuels can also play a role in reducing NOX emissions through improving combustion efficiencies. See the Engineered coal fuels technologies Issues page on this website for more information.) Combustion Modification. Lox-NO X Burners – NO X is formed when heat forces nitrogen atoms apart and they recombine with oxygen atoms.

  • 赵永椿(博导)-能源与动力工程学院

    2019-11-21  A review on modification of facet-engineered TiO2 for photocatalytic CO2 reduction. Journal of Photochemistry and Photobiology C: Photochemistry Reviews, 2018, 36: 24-47 [2].

  • Coal-Fired Power Plant Heat Rate Reductions

    2015-8-14  Selective catalytic reduction (SCR) system • Water treatment system Boiler water treatment Cooling tower This report discusses potential efficiency improvement concepts and the resulting heat rate reductions that can be implemented in various systems of a typical coal-fired power plant. All estimated capital and installation costs are

  • Weather Modification for Rain Reduction - A Conceptual

    modification for rain reduction and the example of its planned application in PT Adaro Indonesia. 2. Weather Modification Technology for Rain Reduction Studies on rain intensity reduction has been done by many scientists. These studies have been done both in the laboratory by using some models and also by field experimentations.

  • GER-4192 - Combustion Modification: An Economic ...

    2019-10-4  Reduction (SCR). The regulations and implica-tions for NOx reduction requirements are dis-cussed first. Then, the Reburn and Advanced Reburn technologies are presented including design factors and performance experience on coal-fired utility applications. The economic tradeoffs between Combustion Modification and SCR alternatives are then ...

  • Reduction of iron ore with coal by microwave heating

    2020-7-8  The reduction of iron ore with coal by microwave heating produces a pure, dust-free, and high Btu flue gas that can be used in related thermal operations. Depending upon the purity, the reduced iron product could be fed directly to electric arc furnaces for melting. Removal of a slag phase to remove excess silica and alumina may be required in ...

  • A REVIEW ON GASIFIER MODIFICATION FOR TAR

    2014-3-4  Gasifier modification for tar reduction can be divided into several categories ie. the addition of air injection, recirculation of pyrolysis gas, combination of pyrolysis gas recirculation and addition of air injection, modification of gas outlet, modification of combustion zone position, ... This gasifier is meant for coal application but it ...

  • PAPER OPEN ACCESS Experimental Investigation of NOx ...

    The coal used in the tests was high-volatile Shenhua bituminous coal from China. The characteristics of this coal are presented in Table 1. The coal sample was grounded and sieved to a size of 75-90 μm and air -dried at 101°C for 10 h. Table 1. Properties of pulverized coal used in the investigation. Coal . Ultimate analysis, wt%

  • WILPINJONG COAL MINE POLLUTION REDUCTION

    2017-3-22  The Modification involves an incremental increase in the approved maximum run-of-mine (ROM) coal mining rate from 13 million tonnes per annum (Mtpa) to 15 Mtpa, a small increase in the maximum annual rate of overburden mined, expansion of the Coal Handling and Preparation Plant (CHPP), and ... Wilpinjong Coal Pollution Reduction Program . ...

  • Analysis of surface modification on coal pyrite

    2009-8-27  Analysis of surface modification on coal pyrite The Journal of The South African Institute of Mining and Metallurgy JULY/AUGUST 2002 317 Figure 4—XRD patterns of fresh coal-series pyrite powder Figure 5—XRD pattern of initial oxidized coal-series pyrite Figure 6—XRD pattern of pyrite after electrolytic reduction

  • Preparation of SiC from acid‐leached coal gangue by ...

    For the comprehensive utilization of coal gangue, acid‐leached coal gangue was used as silicon source and part of carbon source, low ash anthracite and degreasing cotton were added respectively as supplementary carbon source, SiC and SiC fiber were prepared by carbothermal reduction

  • MONTROSE EAST UNDERGROUND MINE MODIFICATION

    2015-2-10  • An estimated total open cut ROM coal reserve of 98 Mt. • Reduction in open cut extent and a 6 Mt reduction in open cut ROM coal reserve. Open Cut Mining • Open cut mining operations until 2017. • Unchanged • Underground mining of up to 7.5 Mtpa of ROM coal from the Whybrow, Wambo, Arrowfield and Bowfield Seams.

  • Colowyo Coal Mine, Collom Permit Expansion Area

    2016-1-14  1. Securing a federal mining plan modification approval authorizing mining of leased federal coal in an expanded permit boundary (i.e., the Collom Permit Expansion Area [PR04]) 2. Securing a federal coal lease modification approval and authorization from BLM to disturb a 27.84 tract of federal land with mining activities associated with PR04; and,