DOCSLIB.ORG

Study on the Characteristics of Nitrogen Dioxide Adsorption And

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Study on the Characteristics of Nitrogen Dioxide Adsorption And www.nature.com/scientificreports OPEN Study on the characteristics of nitrogen dioxide adsorption and storage of coal residue in coal‑fred power plants in goaf Xuefeng Wang1*, Ling Qiao1, Cunbao Deng1, Ge Chu2, Xiaofeng Li2, Qi Zhao3 & Guoli Wang4 In order to realize the storage of the residual coal in the goaf on the fue gas of the power plant, the adsorption characteristics of nitrogen dioxide in the fue gas of the power plant were studied. The Gaussian09 was used to study the adsorption process of NO2 molecules on coal at the density functional (DFT) B3LYP/6‑311G level, and the model of NO2 adsorption by coal was established. Diferent quantities were obtained using orbital energy changes and molecular bond length changes. According to the principle of molecular adsorption, the adsorption of NO2 by coal is considered to be physical adsorption with endothermic heat. On the basis of simulation, using self‑organized experimental devices, the single‑component NO2 gas and the simulated coal‑fred power plant fue gas were introduced into anthracite, bituminous coal and lignite. In single‑component adsorption, the adsorption of NO2 by lignite increases with time. The time to reach equilibrium is related to the properties of the coal itself. In the process of simulated fue gas adsorption, the order of the adsorption amount of coal to fue gas is CO2 > NO 2 > N 2 > ­O2. In the simulated fue gas, coal is easy to absorb NO2 and CO2, and the competition between gases reduces the frequency of contact between NO2 and the coal surface. Simulation and experimental results show that coal has obvious adsorption characteristics for NO2, and it is feasible for the residual coal in the goaf to adsorb NO2 in the fue gas of power plants. Te presence of nitrogen oxides in the fue gas is an important gas that causes the ozone layer, and particle pol- lution and related pollution are also the main cause of acid rain, which will destroy the ozone layer. Te nitro- gen oxides in human production and life mainly come from the burning of fossil fuels, and the content in the air increases year by year. Te nitrogen oxide content in the fue gas of coal-fred power plants is about 0.05%. According to relevant reports and studies, the amount of NOX emissions from fuel combustion in thermal power plants, iron smelters, and chemical plants accounts for more than 90% of total man-made emissions1–4. In order to deal with NOX in the fue gas of power plants, dry fue gas denitration and wet fue gas denitration are ofen used to reduce NOX in fue gas. In the dry fue gas denitration, the SCR catalyst is difcult to choose and the cost is high; the SNCR denitration rate is low and the temperature is difcult to control. Te NH3 and fue gas produced by the combined denitrifcation technology of the two methods in the SNCR area cannot meet the denitrifcation demand of the SCR area. Te catalytic decomposition method has a low denitration rate. Te adsorption method is susceptible to interference from external conditions and has high requirements for NO X. Wet fue gas denitration technologies include reduction adsorption, oxidation adsorption and lye absorption. Te use of lye adsorption is limited because of its high cost and complex products. Te oxidation absorption method requires the equipment to have anti-corrosion ability, and the conversion material is still polluting the environment. Although the reduction and absorption method is harmless, the denitrifcation rate is low and cannot meet the atmospheric emission standards. Te above-mentioned methods have serious disadvantages and cannot be promoted vigorously. Terefore, the denitration of fue gas in power plants is still an urgent problem to be solved5–10. In the 1970s, the United States took the lead in researching coal-bed methane as a resource and achieved success. Later, the research on coal adsorbed gas gradually deepened. Experiments show that there are 12 many types of coal adsorbed gases, including CH4, N2, CO2, O2, H2, and NO2 . 1College of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan 030024, China. 2College of Safety Science & Engineering, Liaoning Technical University, Fuxin 123000, China. 3China Coal Society, Beijing 100000, China. 4Dananhu No.1 Mine of Guoshen Group, Hami 839000, China. *email: [email protected] Scientifc Reports | (2021) 11:8822 | https://doi.org/10.1038/s41598-021-87855-y 1 Vol.:(0123456789) www.nature.com/scientificreports/ Coal adsorbs gas through van der Waals force, and the van der Waals force is related to the properties of the coal itself. In recent years, the research on the afnity of coal to various gases has achieved many remarkable results in the aspects of experiment and simulation calculation13. Te competitive adsorption and difusion mechanism of CO2/CH4/H2O mixture in lignite was studied by using Monte Carlo method and molecular dynamics. Te efects of temperature and pressure on competitive adsorption and difusion behavior were discussed. Te results show that the adsorption capacity of lignite to CO2 is greater than that of CH4, and the adsorption of moisture on gas is inhibited. Xu et al. conducted a grand canonical Monte Carlo simulation on the bituminous coal model, studied the adsorption behavior of CO 2, CH4 and their mixtures, and believed that CO2 showed preferential adsorption over CH4. Li et al. established 3 models of diferent coal ranks and studied the competitive adsorption of CO2/CH4 on coal. Te results show that from low-rank coal to high-rank coal, the total pore volume, porosity and efective pore ratio of coal increase, which leads to an increase in the adsorption capacity of coal. With the increase of coal rank, the choice of CO 2/CH4 adsorption Sexual decrease. Yang et al. established a gas–solid coupling test system and performed uniaxial load- ing tests on coal samples adsorbed with diferent gases, indicating that under the same adsorption pressure, the adsorption capacity and degradation rate of coal for CO2, CH4, N2 and He decreased in turn. Kui et al. proposed that when the coal body expands with the increase of water content, the adsorption capacity and adsorption rate of CH4 both decrease. Lin et al. studied the adsorption behavior of bituminous coal in mixed gases with difer- ent ratios, and established a coal adsorption experimental system to conduct experiments. Te results showed that the adsorption of bituminous coal to CO2 is stronger than that of N2, and there is a competitive adsorption relationship between the two. Stevenson et al. used dry coal samples to perform adsorption tests on CH 4, N2, and CO2 mixed gases. Arri and Yee used wet coal samples to study the adsorption experiment of CH4, CO2 and CH4, N2, and obtained that the adsorption of coal to multiple gases was achieved by competing for the same adsorption sites. Cui et al. studied the isothermal adsorption experiment of binary mixed gas of CH4, CO2, N2 with diferent ratio concentrations, and obtained the diferent adsorption capacity of each component gas under diferent conditions. Gu et al. simulated the adsorption process of coalbed methane (CH 4, N2), and the quanti- tative relationship between the concentration of the component in the free phase and its concentration in the adsorbed phase was determined by the adsorption competition. Yu et al. studied the adsorption characteristics of CH4 and CO2 and their mixed gas under high pressure, and found that the adsorption capacity of coal for the mixed gas is between that of pure CH 4 and pure CO 2. Wang et al. applied quantitative calculations to study the mixed adsorption process of multiple gases on the surface of coal, and concluded that the afnity order of adsorption on the surface of coal with various gases is: O2 > ­H2O > ­CO2 > ­N2 > CO > ­CH4. However, most of the current researches focus on the competitive adsorption between CO2, N2 and coalbed methane, and there are few studies on the adsorption of NO2. Te adsorption of coal and gas is not only on the surface, but also on the surface of the pores in the coal. In this study, the simplifed structure of the coal surface and the physical adsorption of gas were selected. However, the adsorption of gas in coal pores also includes physical adsorption, associative chemical adsorption and dissociative chemical adsorption. In addition, the adsorption may cause deformation of the pores, and the phenomenon of pore blockage, which leads to a decrease in pore volume, will afect the adsorption. Tis paper only studies the physical adsorption process of coal and gas. Gaussian simulated coal adsorption of NO 2 Te calculation was completed with the Gaussian09 program. Te adsorption process of coal molecules and NO 2 molecules was studied at the level of density functional (DFT)B3LYP/6-311G. Simplify model building. It is generally believed that coal is a polymer structure, which is based on con- densed aromatic ring and connected with various alkyl side chains, oxygen-containing functional groups and bridge bonds. Te composition of coal is also relatively complex, mainly composed of carbon, hydrogen, oxy- gen, nitrogen and sulfur, and many kinds of trace elements. Te composition and structure of coal vary greatly according to its metamorphic degree and geological conditions. In the simulation calculation, the more complex the coal structure model, the less representative it is. In the artical, the model of molecular fragments on the surface of coal is simplifed as a characteristic structure of coal composed of two benzene rings. A side chain con- taining 1 C atom, 1 N atom and a side chain containing 2 C atoms extend from the skeleton.
Load more

Recommended publications
  • Update on Lignite Firing
    Update on lignite firing Qian Zhu CCC/201 ISBN 978-92-9029-521-1 June 2012 copyright © IEA Clean Coal Centre Abstract Low rank coals have gained increasing importance in recent years and the long-term future of coal -derived energy supplies will have to include the greater use of low rank coal. However, the relatively low economic value due to the high moisture content and low calorific value, and other undesirable properties of lignite coals limited their use mainly to power generation at, or, close to, the mining site. Another important issue regarding the use of lignite is its environmental impact. A range of advanced combustion technologies has been developed to improve the efficiency of lignite-fired power generation. With modern technologies it is now possible to produce electricity economically from lignite while addressing environmental concerns. This report reviews the advanced technologies used in modern lignite-fired power plants with a focus on pulverised lignite combustion technologies. CFBC combustion processes are also reviewed in brief and they are compared with pulverised lignite combustion technologies. Acronyms and abbreviations CFB circulating fluidised bed CFBC circulating fluidised bed combustion CFD computational fluid dynamics CV calorific value EHE external heat exchanger GRE Great River Energy GWe gigawatts electric kJ/kg kilojoules per kilogram kWh kilowatts hour Gt billion tonnes FBC fluidised bed combustion FBHE fluidised bed heat exchanger FEGT furnace exit gas temperature FGD flue gas desulphurisation GJ
    [Show full text]
  • 'Retrofitting CCS to Coal: Enhancing Australia's Energy
    RETROFITTING CCS TO COAL: ENHANCING AUSTRALIA’S ENERGY SECURITY RETROFITTING CCS TO COAL: ENHANCING AUSTRALIA’S ENERGY SECURITY any representation about the content and suitability Disclaimer of this information for any particular purpose. The document is not intended to comprise advice, and is This report was completed on 2 March 2017 and provided “as is” without express or implied therefore the Report does not take into account warranty. Readers should form their own conclusion events or circumstances arising after that time. The as to its applicability and suitability. The authors Report’s authors take no responsibility to update the reserve the right to alter or amend this document Report. without prior notice. The Report’s modelling considers only a single set of Authors: Geoff Bongers, Gamma Energy Technology input assumptions which should not be considered Stephanie Byrom, Gamma Energy Technology entirely exhaustive. Modelling inherently requires Tania Constable, CO2CRC Limited assumptions about future behaviours and market interactions, which may result in forecasts that deviate from actual events. There will usually be About CO2CRC Limited: differences between estimated and actual results, CO2CRC Limited is Australia’s leading CCS research because events and circumstances frequently do not organisation, having invested $100m in CCS research occur as expected, and those differences may be over the past decade. CO2CRC is the first organisation material. The authors of the Report take no in Australia to have demonstrated CCS end-to-end, responsibility for the modelling presented to be and has successfully stored more than 80,000 tonnes considered as a definitive account. of CO2 at its renowned Otway Research Facility in The authors of the Report highlight that the Report, Victoria.
    [Show full text]
  • NUCLEAR TECHNIQUES in the COAL INDUSTRY IAEA, VIENNA, 1995 IAEA-TECDOC-845 ISSN 1011-4289 IAEA© , 1995 Printed by the IAEA in Austria November 1995 FOREWORD
    IAEA-TECDOC-845 Nuclear techniques coalinthe industry Proceedings finala of Research Co-ordination Meeting held in Krakow, Poland, 9-12 May 1994 W INTERNATIONAL ATOMIC ENERGY AGENCY ULr^ïïfî IAEe Th A doe t normallsno y maintain stock f reportso thin si s series. However, microfiche copie f thesso e reportobtainee b n sca d from IN IS Clearinghouse International Atomic Energy Agency Wagramerstrasse 5 0 10 x P.OBo . A-1400 Vienna, Austria Orders should be accompanied by prepayment of Austrian Schillings 100,- in the form of a cheque or in the form of IAEA microfiche service coupons orderee whicb y hdma separately fro INIe mth S Clearinghouse. The originating Section of this publication in the IAEA was: Industrial Application Chemistrd san y Section International Atomic Energy Agency Wagramerstrasse 5 0 10 P.Ox Bo . A-1400 Vienna, Austria NUCLEAR TECHNIQUES IN THE COAL INDUSTRY IAEA, VIENNA, 1995 IAEA-TECDOC-845 ISSN 1011-4289 IAEA© , 1995 Printed by the IAEA in Austria November 1995 FOREWORD e yearlasw fe Th t s have witnessed many important advance e developmenth n i s d an t application nucleaf so r technique coae th l n sindustryi . Nuclear borehole logging techniques basen do measurement of natural radioactivity, X and gamma ray absorption and scattering and neutron interactions are extensively employed for exploration programmes and in situ evaluation of coal. On-line analysis based on a variety of techniques is widely used to optimize coal processing operations increasee th ; d product yiel assuref do d qualit reductiod yan energn ni y usage have resulted in enormous economic benefits to the coal industry.
    [Show full text]
  • Chemical and Physical Structural Studies on Two Inertinite-Rich Lump
    CHEMICAL AND PHYSICAL STRUCTURAL STUDIES ON TWO INERTINITE-RICH LUMP COALS. Nandi Malumbazo A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philoso- phy in the School of Chemical and Metallurgical Engineering at the University of the Witwatersrand. Johannesburg, 2011 DECLARATION I, Nandi Malumbazo, declare that the thesis entitled: “CHEMICAL AND PHYSICAL STRUCTURAL STUDIES ON TWO INER- TINITE-RICH LUMP COALS” is my own work and that all sources I have used or quoted have been indicated and ac- knowledged by means of references. Signature: ……………………………………………………………….. Date:………………………………………………………………………… Page i ABSTRACT ABSTRACT Two Highveld inertinite-rich lump coals were utilized as feed coal samples in order to study their physical, chemical structural and petrographic variations during heat treat- ment in a packed-bed reactor unit combustor. The two feed lump coals were selected as it is claimed that Coal B converts at a slower rate in a commercial coal conversion process when compared to Coal A. The reason for this requires detailed investigation. Chemical structural variations were determined by proximate and coal char CO2 reactiv- ity analysis. Physical structural variations were determined by FTIR, BET adsorption methods, XRD and 13C Solid state NMR analysis. Carbon particle type analysis was con- ducted to determine the petrographic constituents of the reactor generated samples, their maceral associations (microlithotype), and char morphology. This analysis was undertaken with the intention of tracking the carbon conversion and char formation and consumption behaviour of the two coal samples within the reactor. Proximate analysis revealed that Coal A released 10 % more of its volatile matter through the reactor compared to Coal B.
    [Show full text]
  • Solutions for Energy Crisis in Pakistan I
    Solutions for Energy Crisis in Pakistan i ii Solutions for Energy Crisis in Pakistan Solutions for Energy Crisis in Pakistan iii ACKNOWLEDGEMENTS This volume is based on papers presented at the two-day national conference on the topical and vital theme of Solutions for Energy Crisis in Pakistan held on May 15-16, 2013 at Islamabad Hotel, Islamabad. The Conference was jointly organised by the Islamabad Policy Research Institute (IPRI) and the Hanns Seidel Foundation, (HSF) Islamabad. The organisers of the Conference are especially thankful to Mr. Kristof W. Duwaerts, Country Representative, HSF, Islamabad, for his co-operation and sharing the financial expense of the Conference. For the papers presented in this volume, we are grateful to all participants, as well as the chairpersons of the different sessions, who took time out from their busy schedules to preside over the proceedings. We are also thankful to the scholars, students and professionals who accepted our invitation to participate in the Conference. All members of IPRI staff — Amjad Saleem, Shazad Ahmad, Noreen Hameed, Shazia Khurshid, and Muhammad Iqbal — worked as a team to make this Conference a success. Saira Rehman, Assistant Editor, IPRI did well as stage secretary. All efforts were made to make the Conference as productive and result oriented as possible. However, if there were areas left wanting in some respect the Conference management owns responsibility for that. iv Solutions for Energy Crisis in Pakistan ACRONYMS ADB Asian Development Bank Bcf Billion Cubic Feet BCMA
    [Show full text]
  • Coal Characteristics
    CCTR Indiana Center for Coal Technology Research COAL CHARACTERISTICS CCTR Basic Facts File # 8 Brian H. Bowen, Marty W. Irwin The Energy Center at Discovery Park Purdue University CCTR, Potter Center, 500 Central Drive West Lafayette, IN 47907-2022 http://www.purdue.edu/dp/energy/CCTR/ Email: [email protected] October 2008 1 Indiana Center for Coal Technology Research CCTR COAL FORMATION As geological processes apply pressure to peat over time, it is transformed successively into different types of coal Source: Kentucky Geological Survey http://images.google.com/imgres?imgurl=http://www.uky.edu/KGS/coal/images/peatcoal.gif&imgrefurl=http://www.uky.edu/KGS/coal/coalform.htm&h=354&w=579&sz= 20&hl=en&start=5&um=1&tbnid=NavOy9_5HD07pM:&tbnh=82&tbnw=134&prev=/images%3Fq%3Dcoal%2Bphotos%26svnum%3D10%26um%3D1%26hl%3Den%26sa%3DX 2 Indiana Center for Coal Technology Research CCTR COAL ANALYSIS Elemental analysis of coal gives empirical formulas such as: C137H97O9NS for Bituminous Coal C240H90O4NS for high-grade Anthracite Coal is divided into 4 ranks: (1) Anthracite (2) Bituminous (3) Sub-bituminous (4) Lignite Source: http://cc.msnscache.com/cache.aspx?q=4929705428518&lang=en-US&mkt=en-US&FORM=CVRE8 3 Indiana Center for Coal Technology Research CCTR BITUMINOUS COAL Bituminous Coal: Great pressure results in the creation of bituminous, or “soft” coal. This is the type most commonly used for electric power generation in the U.S. It has a higher heating value than either lignite or sub-bituminous, but less than that of anthracite. Bituminous coal
    [Show full text]
  • Spontaneous Combustion of South American Coal
    Graduate Theses, Dissertations, and Problem Reports 2016 Spontaneous Combustion of South American Coal Brunno C. C. Vieira Follow this and additional works at: https://researchrepository.wvu.edu/etd Recommended Citation Vieira, Brunno C. C., "Spontaneous Combustion of South American Coal" (2016). Graduate Theses, Dissertations, and Problem Reports. 6875. https://researchrepository.wvu.edu/etd/6875 This Thesis is protected by copyright and/or related rights. It has been brought to you by the The Research Repository @ WVU with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you must obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Thesis has been accepted for inclusion in WVU Graduate Theses, Dissertations, and Problem Reports collection by an authorized administrator of The Research Repository @ WVU. For more information, please contact [email protected]. Spontaneous Combustion of South American Coal Brunno C. C. Vieira Thesis submitted to the Statler College of Engineering and Mineral Resources at West Virginia University in partial fulfillment of the requirements for the degree of Master of Science in Mining Engineering Yi Luo, Ph.D., Chair Felicia Peng, Ph.D. Brijes Mishra, Ph.D. Department of Mining Engineering Morgantown, West Virginia 2016 Keywords: Spontaneous Combustion, Coal, South American, Safety, Mine fires, Self- heating temperature Copyright 2016 Brunno C. C. Vieira Abstract Many causes can lead to mine fires and explosions in coal mines but one of the most relevant cause is the spontaneous combustion of coal.
    [Show full text]
  • Carbon Footprint for Mercury Capture from Coal-Fired Boiler Flue Gas
    energies Article Carbon Footprint for Mercury Capture from Coal-Fired Boiler Flue Gas Magdalena Gazda-Grzywacz 1,* , Łukasz Winconek 2 and Piotr Burmistrz 1 1 Faculty of Energy & Fuels, AGH University of Science and Technology, Mickiewicz Avenue 30, 30-059 Krakow, Poland; [email protected] 2 Grand Activated Sp. z o.o., Białostocka 1, 17-200 Hajnówka, Poland; [email protected] * Correspondence: [email protected] Abstract: Power production from coal combustion is one of two major anthropogenic sources of mercury emission to the atmosphere. The aim of this study is the analysis of the carbon footprint of mercury removal technologies through sorbents injection related to the removal of 1 kg of mercury from flue gases. Two sorbents, i.e., powdered activated carbon and the coke dust, were analysed. The assessment included both direct and indirect emissions related to various energy and material needs life cycle including coal mining and transport, sorbents production, transport of sorbents to the power plants, and injection into flue gases. The results show that at the average mercury concentration in processed flue gasses accounting to 28.0 µg Hg/Nm3, removal of 1 kg of mercury from flue gases required 14.925 Mg of powdered activated carbon and 33.594 Mg of coke dust, respec- tively. However, the whole life cycle carbon footprint for powdered activated carbon amounted to −1 89.548 Mg CO2-e·kg Hg, whereas for coke dust this value was around three times lower and −1 amounted to 24.452 Mg CO2-e·kg Hg. Considering the relatively low price of coke dust and its lower impact on GHG emissions, it can be found as a promising alternative to commercial powdered Citation: Gazda-Grzywacz, M.; activated carbon.
    [Show full text]
  • Appendix A: Calculation of Flue Gas Composition
    Appendix A: Calculation of Flue Gas Composition Consider 100 kg of biomass (pine wood) with an Ultimate Analysis on a dry ash free basis given in Table A.1. This calculation assumes that all the carbon is burned i.e. there is no carbon in the ash or carbon monoxide formed. If there is the unburned carbon has to be sub- tracted from the value of carbon in the above table. Also that the S, N and Cl are negligible and there is no ingress of N2 in the flue or sampling system. Moisture content given in the Proximate Analysis has to be allowed for in the calculation as well. Assume the combustion reactions are C + O2 = CO2 2H2 + O2 = 2H2O Oxygen required for stoichiometric combustion = 4.33 + 1.6 − 1.3 = 4.63kg-mol Air requirement = [4.63 × 100 × 22.41 ]/[ 21]=494.1 m3 at NTP Composition of the dry flue gas from the stoichiometric combustion of 1 kg of biomass: 3 N2 from theoretical air 4.94 0.79 3.90 m . = × = 3 N2 from biomass 0.001 0.224 0.0002 m . = × = 3 CO2 from biomass 4.33 0.224 0.97 m . Total amount of dry= flue gas× per 1 kg= wood 4.872 m3. = If the concentration in the wet flue gas is required then the water content has to be included in the above calculation. © The Author(s) 2014 105 J.M. Jones et al., Pollutants Generated by the Combustion of Solid Biomass Fuels, SpringerBriefs in Applied Sciences and Technology, DOI 10.1007/978-1-4471-6437-1 106 Appendix A: Calculation of Flue Gas Composition Table A.1 Calculation of Element Molecular weight Mols O2 required flue gas composition C, 52.00 12 4.33 H, 6.20 2 1.6 O, 41.60 32 1.3 − N, 0.2 28 Therefore % CO 0.97/4.872 19.91 assuming stoichiometric combustion (0 % 2 = = O2).
    [Show full text]
  • Maceral Types and Quality of Coal in the Tuli Coalfield: a Case
    applied sciences Article Maceral Types and Quality of Coal in the Tuli Coalfield: A Case Study of Coal in the Madzaringwe Formation in the Vele Colliery, Limpopo Province, South Africa Elelwani Denge * and Christopher Baiyegunhi Department of Geology and Mining, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa; [email protected] * Correspondence: [email protected] Featured Application: Authors are encouraged to provide a concise description of the specific application or a potential application of the work. This section is not mandatory. Abstract: The Madzaringwe Formation in the Vele colliery is one of the coal-bearing Late Palaeozoic units of the Karoo Supergroup, consisting of shale with thin coal seams and sandstones. Maceral group analysis was conducted on seven representative coal samples collected from three existing boreholes—OV125149, OV125156, and OV125160—in the Vele colliery to determine the coal rank and other intrinsic characteristics of the coal. The petrographic characterization revealed that vitrinite is the dominant maceral group in the coals, representing up to 81–92 vol.% (mmf) of the total sample. Collotellinite is the dominant vitrinite maceral, with a total count varying between 52.4 vol.% (mmf) and 74.9 vol.% (mmf), followed by corpogelinite, collodetrinite, tellinite, and pseudovitrinite with a Citation: Denge, E.; Baiyegunhi, C. count ranging between 0.8 and 19.4 vol.% (mmf), 1.5 and 17.5 vol.% (mmf), 0.8 and 6.5 vol.% (mmf) Maceral Types and Quality of Coal in the Tuli Coalfield: A Case Study of and 0.3 and 5.9 vol.% (mmf), respectively. The dominance of collotellinite gives a clear indication Coal in the Madzaringwe Formation that the coals are derived from the parenchymatous and woody tissues of roots, stems, and leaves.
    [Show full text]
  • COAL CONFERENCE University of Pittsburgh · Swanson School of Engineering ABSTRACTS BOOKLET
    Thirty-Fifth Annual INTERNATIONAL PITTSBURGH COAL CONFERENCE University of Pittsburgh · Swanson School of Engineering ABSTRACTS BOOKLET Clean Coal-based Energy/Fuels and the Environment October 15-18, 2018 New Century Grand Hotel Xuzhou Hosted by: The conference acknowledges the support of Co-hosted by: K. C. Wong Education Foundation, Hong Kong A NOTE TO THE READER This Abstracts Booklet is prepared solely as a convenient reference for the Conference participants. Abstracts are arranged in a numerical order of the oral and poster sessions as published in the Final Conference Program. In order to facilitate the task for the reader to locate a specific abstract in a given session, each paper is given two numbers: the first designates the session number and the second represents the paper number in that session. For example, Paper No. 25.1 is the first paper to be presented in the Oral Session #25. Similarly, Paper No. P3.1 is the first paper to appear in the Poster Session #3. It should be cautioned that this Abstracts Booklet is prepared based on the original abstracts that were submitted, unless the author noted an abstract change. The contents of the Booklet do not reflect late changes made by the authors for their presentations at the Conference. The reader should consult the Final Conference Program for any such changes. Furthermore, updated and detailed full manuscripts, published in the Conference Proceedings, will be sent to all registered participants following the Conference. On behalf of the Thirty-Fifth Annual International Pittsburgh Coal Conference, we wish to express our sincere appreciation and gratitude to Ms.
    [Show full text]
  • Handbook of Coal Analysis
    HANDBOOK OF COAL ANALYSIS James G. Speight A JOHN WILEY & SONS, INC., PUBLICATION HANDBOOK OF COAL ANALYSIS HANDBOOK OF COAL ANALYSIS James G. Speight A JOHN WILEY & SONS, INC., PUBLICATION Copyright 2005 by John Wiley & Sons, Inc. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, 978-750-8400, fax 978-646-8600, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008. Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate.
    [Show full text]