2009年01期目次

  • Current situation and practical application of CO2 geological sequestration in China

    LI Xiang-dong1,2,FENG Qi-yan1,2,LIU Bo2,ZHOU Lai2(1.Jiangsu Key Laboratory of Resources and Environmental Information Engineering,Xuzhou 221008,China;2.China School of Environment Science and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,China)

    Geological sequestration is one of the effective means of reducing atmospheric emission of CO2 and alleviating the worsening global climate change.It includes:the oil and gas reservoirs sequestration,the saline aquifers sequestration of the sedimentary basins,the deep unminable coal seams sequestration.Based on the international progress and engineering experience of this studies,analyzing the proper potential regions of CO2 sequestration in China and the existent risk of geological sequestration,giving some advice of CO2 geological sequestration.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 154K]

  • Study on the interaction between the collectors and the frothers in flotation

    SHEN Xiao-jun,LIU Yuan-hui(College of Resources and Environment Engineering,Heilongjiang Institute of Science and Technology,Harbin 150027,China)

    This paper has discussed the interaction between collectors and frothers,exploring the influence of the amout and the ratio of the reagent to the flotation by experiments,it finds that the frothers have important influence on the collection efficiency,and it can improve the faultless index of flotation by means of increasing its amout.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 187K]

  • Current research and prospect of technology for coal dust desulphurization by magnetic method

    XING Bao-lin,CHEN Lun-jian,JIAO Hong-guang,PAN Lan-ying(Insitute of Materials Science and Engineering Henan Polytechnic University,Jiaozuo 454003,China)

    Discuss the fundamentals and current situation of the technologh for coal dust desulphurization by magnetic method,Survey explicitly the magnetic intensified technology which is used in coal measures brances.It pointed out that the desulphurization technology by dry magnetic separation should be prior considered when developing the desulphurization technology before combustion with Chinese characteristic.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 106K]

  • Experimental study on ultrasonic enhancing the flotation of the scarce difficult-to-float fine coals

    KANG Wen-ze,XUN Hai-xin,KONG Xiao-hong(Institute of Science and Technology of Heilongjiang,Resource and Environment department,Harbin 150027,China)

    The effects of ultrasonic frequency,power and treatment time on the scarce difficult-to-float fine coals were studied.The experimental results of ultrasonic and ordinary flotation were compared.When the ash content of the clean coal of ultrasonic flotation was lower than that of ordinary flotation by 1.26%,the clean coal yield and the perfect index flotation were increased by 17.34% and 13.15% respectively.The study shows that ultrasonic treatment could enhance the performance of flotation for the scarce difficult-to-float fine coals.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 158K]

  • The transformation and optimization of PGll6 type of filter

    GUO Yu-mei(Shanxi Institute of Coal,Taiyuan 030031,China)

    Analysis and research the issues which appeared in the running of PGll6 type of filter in Jiexiu coal preparation plant.Having optimized the slurry system according to reform the sluicing system and unloading system of filter.This improved the operating efficiency of the filter system.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 166K]

  • Average structure of direct coal liquefaction solvent oil

    ZHANG Xiao-jing,WU Yan,DU Shu-feng(Beijing Research Institute of Coal Chemistry,China Coal Research institute,Beijing 100013,China)

    The samples of a brown coal direct liquefaction prehydrotreated and hydrotreated solvent were examined by 1H-NMR,element analysis and molecular weights etc.,and their properties and the average structures were studied,and from which the average molecular formulas and relative structural parameters were obtained.The results show that the average molecular formulas of prehydrotreated and hydrotreated solvent are C17H23S0.004N0.09O0.12 and C16H24S0.003N0.03O0.03,and their aromatic-carbon ratio are 0.46 and 0.37,respectively.The average structure of the prehydrotreated solvent includes 2～3 rings,1～2 for aromatic rings and 1 for naphthenic ring.The average structure of the hydrotreated solvent was changed,it consists 2 rings,1 for aromatic and 1 for naphthenic ring.It was concluded that the hydrotreated solvent has well hydrogen-donating ability.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 239K]

  • Application of serial communication on API in the control system for power coal blending

    DONG Ping1,LI Ming-ju1,WANG Peng1,GUO Dian-lin2(1.College of Resource&Environment Engineering,Heilongjiang Institute of Science and Technology,Haerbin 150027,China;2.College of Electrical&Information Engineering,Heilongjiang Institute of Science and Technology,Haerbin 150027,China)

    By introducing the application of serial communication in the master-slave control system for power coal blending,making the communication protocols,designing communication module of main computer using API function,the parameter setting of lower computer designed is completed.And demonstrates a designed method to develop serial communication program between intelligent speed controllers based on DSP,and the host computer by using Visual C++6.0.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 194K]

  • Study on desulfurization characteristic of desulfurization type coal-water slurry

    CHEN Zhan-wen1,MA Rui-xin2,SHI Chang-xing2,TANG Hai-xiang2(1.Hebei Jinniu Energy Xingtai Mining Co.,Ltd,Xingtai 054026,China;2.North China Institute of Science and Technology Department of Environmental Engineering,Beijing 100160,China)

    Selected calcium carbonate,barium carbonate as desulfurizer,having performed the experiment to take off the S which were included in coal-water slurry and coal powder under burning conditions in the ZCL desulfurization apparatus.The results show that desulfurization rate of coal-water slurry is superior to the same kind of coal.The reason is that there is a reduction in the carbon dioxide content of the camp stove along with the reduction of water included in coal-water slurry.This can reduce the rate of desulfurization products.Porous structure can formate after evaporation that will help improve the desulfurization rate of the reaction.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 195K]

  • Application way of process systems engineering in coke-making plant

    LIANG Lei1,ZHANG An-yang1,WANG Zhi-jiang1,YU Ge-wen2,LI Shi-qi3(1.An-steel Co.,Ltd,Anshan 114021,China;2.Institute of Coal Chemistry,CAS,Taiyuan 030001,China 3.University of Science and Technology Beijing,Beijing 100083,China)

    Especially focused on coke-making design integration、prediction model of coke quality and energy-saving technology,we demonstrated some effective application ways and means of process systems engineering in traditional coke-making plants.The results show that we can make systems structure optimized by holding the direction of coke-making plant design on the viewpoint of process systems.And prediction models of coke quality using in coal & coke production are built up based on some advanced measures in process systems engineering,for example nerve net,genetics algorithm,which can upgrade the practicability of prediction models.From the intention of process systems engineering,energy conservation work in coke-making plants can enter into a new period by using some optimization and energy-saving technology.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 270K]

  • R&D of biomass entrained flow gasification technology

    ZHANG Ke-da,LIANG Da-ming,WANG Peng,BU Xue-peng,DONG Wei-guo,JI Xu-guo(Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China)

    This paper presents the significance and background of developing biomass entrained flow gasification technology,analyses the characteristics of biomass entrained flow gasification.and highlights the shortcomings of the R&D of biomass entrained flow gasification technology both home and abroad,pointing out the keystone and difficulty for the development of this area.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 257K]

  • Advancesing of solvent thermal extraction of coal study

    SHI Zhi-jie1,ZHANG Sheng-zhen2,SHI Shi-dong1,LI Wen-bo1(1.Beijing Research Institute of Chemistry,China coal Research Institute,Beijing 100013;2.Datang International Chemical Technology Research Institute Co.,LTD,100071 Beijing)

    This paper summarizes the advanceing of solvent thermal extraction(above 300℃)of coal study of recent years.The primary influence factors on thermal extraction contains polar solvent,acid treatment,extraction time et al are discussed.The result shows that acid treatment and using polar solvent are propitious to increasing the thermal extraction yield.Time and temperature are important parameters of thermal extraction and they effect the extraction yield to a different extent.Because the extract has high reaction activity and ashless,it is good raw material of coal direct liquefaction and can be used in gas turbines.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 126K]

  • Research status of adsorbent to oil gas recovery

    XIONG Yin-wu1,LIANG Da-ming1,SUN Zhong-chao1,BAI Ya-na2(1.Beijing Research Institute of Coal Chemistry,CCRI,Beijing 100013,China;2.Chemistry and Environment Engineering College,China University of Mining & Technology,Beijing 100083,China)

    This paper simply introduced oil gas recovery technology,such as absorption method,condensation method and membrane separation method.It mainly discussed the research status of adsorption method and analyzed research and development of activated carbon adsorbent in oil vapor recovery.The influence to oil gas adsorption by different indicators of activated carbon has been summarized.The analysis shows that developing high-performance activated carbon is of much significance for oil gas recovery.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 128K]

  • Discussion on application of oxy-fuel combustion technology on energy saving of boiler

    MI Cui-li,YAN Wei-ping,KONG Fan-zhuo(MOE's Key Lab of Equipment's State Monitoring & Control,College of Energy and Power Engineering,North China University of Electric Power,Baoding 071003,China)

    The technological characteristic of the oxy-fuel combustion technology is introduced.The energy-saving mechanism of this technology is discussed in detail.A 300MW utility boiler is taken as an example.Boiler thermal efficiency at air and oxy-fuel(30%O2/70%CO2)two atmospheres are calculated adopting ASME PTC 4-1998.Heat transfer characteristics of pulverized coal at two atmospheres are analyzed.The results show that the boiler thermal efficiency can be improved greatly by using oxy-fuel combustion technology,meanwhile,radiation heat transfer increases with convection heat transfer decreasing.As boiler radiant heating surface keeps steady,convection surface decrease greatly.At the same time,high CO2 concentration in the flue gas can reduce the cost on separation.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 258K]

  • The safety and economy analysis of burning multi-fuel in CFB boiler

    ZHANG Yi-wei1,ZHENG Wen-kai(1.Maoming College,Maoming 525000,China;2.Ethylene power plant,MaoMing Petrochmical Corporation,Maoming 525000,China)

    In order to reduce the power generation costs and improve the economic efficiency of power plant.Aim at the MaoMing Petrochemical Corporation Fuel Alteration Project 2×410t/h CFB boiler's characteristic and the technical features of burning multi-fuel.This paper is to analyze the features of different kinds of coal and raise the valid methods and meatures of burning multi-fuel.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 104K]

  • Study on methane catalytic combustion over MnOx/Mg-Al2O3 catalysts

    PAN Yan-fei,LIU Jian-liang,XU Xiu-feng(School of Chemistry and Biology,Yantai University,Yantai 264005,China)

    Mg-modified alumina(Mg-Al2O3)was prepared by using the impregnation of Ma(NO3)2 solution onto Al2O3.Mg-Al2O3 was used as a catalytic support to make MnOx/Mg-Al2O3 catalysts,and the catalysts activity of MnOx/Ma-Al2O3 catalysts for methane combustion was tested.The results show that the addition of Mg into Al2O3 suppressed the transformation of γ-Al2O3 and γ-Al2O3 and improved the thermal stability of Al2O3.MnOx/Mg-Al2O3 catalysts presented high catalytic performance for methane combustion and the optimal loading of Mg is 10% by weight percent.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 282K]

  • Numerical simulation of gas-coal two-phase flow in adjustable rich-lean burner

    YU Jing-mei1;CHEN Yong-hui2,YANG Liu1,GAO Wen-long3(1.College of Mechanical Engineering,Liaoning Technical University,Fuxin 123000,China;2.China United Engineering Corporation Energy and Environment Branch Company,Hangzhou 310012,China;3.No.8 operating team in No.2 operating Company of Shenyang engineering department of LiaoHe petroleum exploration bureau,Shenyang 110316,China)

    In order to ensure the influence as well as barrier lump,the bend,separation part which are considered as an entity for simulating the flow velocity and particle distribution.Adopting the RNG k-ε and the stochastic track model,the gas-coal two-phase flow is numerically simulated.The numerical results were compared with experimentsl results and good greement was found.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 332K]

  • The research of the performence influence by the deflection of the vent-pipe to the tradition cyclone sepertaor with upwind and exhaust gas

    JIANG Jiang,JIN Jing,QU Xing-xing,JIANG Hong,LIU Rui(Institute of power Engineering University of Shanghai for Science and Technology,Shanghai 200093,China)

    According to the 35t/h throwing-boiler rebuilding projection,do some experiments and numerical simulation to research the performence influence by the deflection of the vent-pipe of the tradition cyclone sepertaor with upwind and exhaust gas.The results indicate that the deflection of the vent-pipe during 90°～270° degree and 0.1～0.14 can raise the seperating efficiency by about 2% and with no change of the resistance;the deflection of the vent-pipe during 180°～270° degree and 0.25～0.4 can reduce the seperating efficiency by about 5% but can also depress the resistance by 38%.The results of the numerical simulation explain the conclution of the experiment from the pressure distribution.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 311K]

  • Analysis and solution of coke chimney smoke anomaly

    WANG Xiao-qin(Shanxi Institute of Coal,Taiyuan 030031,China)

    Coke chimney is the only road according to which exhaust gas were sent out,soot should be achromatic under normal circumstances,but under abnormal conditions,smoke and dust out of the chimney have different color characteristics.Analyzes the reason of this anomaly and the answer to it.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 64K]

  • Review of thermal plasma generators used for pyrolysis of coal for acetylene

    ZHANG Li-peng,MENG Yue-dong,SHU Xing-sheng,FANG Shi-dong(Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China)

    Because thermal plasma has the advantages of high temperature,high enthalpy and high reactivity,it can be used to produce acetylene by pyrolysis of coal.Some equipments of plasma pyrolysis of coal for acetylene running at present are pilot-plant.The thermal plasma generator is core of this technics.Some usual thermal plasma generators(mainly arc plasma generators)used for pyrolysis coal for acetylene were introduced.Especially,we had reviewed DC arc plasma generators,including linear,coaxial and V-type generators,and made a presentation of plasma generators with porous-anode and jams in face of plasma pyrolysis of coal for acetylene.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 297K]

  • Study on the upgrading process of low rank coal by the thermal modification

    GU Xiao-yu(Coal Distribution Center,China Shenhua Energy Corporation,Beijing 100010,China)

    An upgrading process research of low rank coal has been made by using thermal modification method.The results showed that thermal modification can improved evidently properties of low rank coal and obtain high quality modification coal products with low moisture,high calorific value and improved ignition point.The suitable temperature by using de-watering process is between 150℃～200℃,and low temperature thermolysis is 500℃.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 105K]

  • Study on coal blending to produce briquetting coke by using lean coal

    JI Yong-hua1,MA Ming-jie2,QIN Bing-ke2,LIU Xiao-jun1,WU Wan-chang1(1.School of Chemical Engineering and Technology,China University of Mining & Technology,Xuzhou,Jiangsu 221008,China;2.School of Material Science and Engineering,Henan Polytechnic University,Jiaozuo,Henan 454000,China)

    This paper discuss the means of coal blending to produce briquetting coke by using lean coal which is picked in the eighth mine in Pingdingshan.At the beginning of experiment,after all the raw material having to be crushed and screened,come to carry out proximate analysis.Second,according to the coal blending principle start to map out the way of coal blending.Third,after the briquetting coal having to be prepared by cold-pressed machine,then make the briquetting coal which have been made to be briquetting coke through cold pressing,measure the compressive strength and reactivity of briquetting coke.Finally,through complete test analysis,The experiment results showed that 90% lean coal blended with an amount of 10% fat coal could produce excellent briquetting coke.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 153K]

  • Research on the treatment of coke plant wastewater simulated by phenol solution with bipolar three-dimensional electrode reactor

    XU Ning1,2,TAO Xiu-xiang2,ZHAO Liang1(1.Department of Chemistry and Biology SuZhou College,Suzhou 234000,China;2.School of Chemical Engineering & Technology China University of Mining and Technology,Xuzhou 221008,China)

    Active carbon as filler materials,phenol solution as simulative wastewater,study on the influences of applied voltage,electrolysis time,initial pH,granule size of particles,electrolyte concentration on the removal rate of phenol were carried out,and the influence tendences were obtained.It indicated that,the removal rate of phenol was over 80%,when the applied voltage was 6V,original pH,granule size of active carbon was 2.360～4.750mm,concentration of NaCl was 1g/L,concentration of phenol was 500mg/L,the electrolysis time was 60 min.And the removal of phenol accorded with the first order reaction kinetics equation,with the reaction velocity constant was 0.0220 min-1.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 242K]

  • Using half-structural and multi-objective theory to choose the best program of coal gangue processing

    SHI Hui,XIN Cheng-peng,ZOU De-yun(Shan dong university of science and technology,ming Safety and Envinnmental protection Laboratory,Qingdao 266510,China)

    Use two elements comparative vague strategic analytical method[1] to determine relative priority,and assume quantitative goals as qualitative goals.and obtain relative uniform calculation standard of the relative priority of quantitative and qualitative goals.Use Half-Structural and Multi-Objective Fuzzy Optimization Academic Model[2] to choose the best program.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 182K]

  • Research on disposal techniques for coal mine sludge

    LIU Zhen-rong1,SONG Zheng-chang1,LV Qiao-ling2,LIU Fang1,Li Jian1(1.School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou 221008,China 2.School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221008,China)

    Mine drainage sludge is a resource of great potential value.The sources and composition of mine sludge are analyzed,main sludge disposal technologies at home and abroad are contrasted,and the utilization plan for mine sludge is established.The great advantages of the technology of pre-drying and fluidized bed incineration are obtained which can achieve the targets in reduction,stabilization,harmless,resource utilization and also in resource conservation.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 134K]

  • Study on influencing factors for photo-catalytic removal of cyanide in coking wastewater

    CHENG Ze-wei,CANG Da-qiang,QUAN Kui(School of Metallurgical and Ecological Engineering,University of Science & Technology Beijing,Beijing 100083,China)

    Cyanide is seriously harmful to organisms.Photo-catalytic degradation and removal of cyanide in coking wastewater was examined by nano-TiO2 under Ultraviolet.Effect of pH of coking wastewater,the initial concentration of total CN-,amount of TiO2,temperature and aeration rate on removal of CN-in coking wastewater were investigated systematically.Experimental results show that removal rate of total CN-is 43.6% under the condition that pH is at 2.0~3.0,TiO2 amount is 0.3g/L,temperature is 30℃.Photo-catalytic removal of CN-accords with the first grade dynamic equation.When the volume of air is 0.8L/min,removal rate of total CN-can reach 58.2%.When the volume of oxygen is 1.0L/min,removal rate of total CN-can be up to 68.2%.And TiO2 can be recycled several times to reuse.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 235K]

  • A study for treatment on the highly concentrated ammonium-nitrogen coking wastewater

    WANG Hong-mei(Jining Vocational and Technical College,Jining 272000,China)

    Components were complex in coke plant wastewater,in which contains high concentration of ammonia nitrogen and a number of toxic and refractory organic compounds,and great changes happened usually to water quality and water flow.Most of the original treatment processes were conventional activated sludge method,though which the COD and ammonia nitrogen removal were not favorable and the effluent concentration couldn't attain the wastewater drainage level,which brought severe harm to our environment and human body.This paper introduces the process that bio-chemical technique and advanced treatment process.

    2009 01 v.15;No.59 [Abstract][OnlineView][Download 98K]



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