2016年01期目次

  • Synthesis and properties of aminosulfonic high-efficiency coal water slurry additive

    WANG Guofang;Energy Conservation and Engineering Technology Research Institute,Coal Science and Technology Research Institute Co.,Ltd.;National Research Center of Coal Water Slurry Engineering and Technology;State Key Laboratory of Coal Mining and Clean Utilization;National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control;

    In order to improve dispersion of coal water slurry additives,reduce additive amount,amino sulfonic acid series of high efficiency water coal slurry additives was successfully synthesized by copolymerization of three monomers which were sodium p-aminobenzenesulfonate,phenol and formaldehyde according to the surface properties and structure characteristics of Shenfu coal. The effects of different synthesis conditions on the properties of product were studied. The optimum conditions were that n( phenol) : n( sodiump-aminobenzenesulfonate) was 1. 8 ∶ 1,n( methanal) : n( phenol+sodium p-aminobenzenesulfonate) was 1. 4 ∶ 1,the reaction system p H value was 9,the reaction temperature was 85 ℃,the reaction time was 5 h. When the additive ratio was 0. 15%,the Shenfu coal water slurry for gasification with a concentration of 64% was obtained.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 256K]

  • Mathematical model based on artificial neural network for coal slurrying prediction

    LI Yanchang;YANG Yumeng;LIU Jianzhong;College of Safty Sicence and Engineering,Liaoning Technical University;Mine Ventilation and Heat Harm Prevention Laboratory Liaoning Technical University;State Key Laboratory of Clean Energy Utilization,Institute for Thermal Power Engineering,Zhejiang University;

    In order to improve prediction accuracy,based on experimental data of coal slurrying,BP neural network model with three input factors was set up for slurry concentration prediction. The BP neural networks' algorithm was Levenberg- Marquardt algorithm. The input data was treated in order to get accurate results. The A_d,HGI,O input factors neural network model's mean absolute errors was 0. 63%,the M_(ad),HGI,O model's mean absolute error was 0. 60% and the M_(ad),HGI,O/C model's mean absolute error was 0. 40%,but the exist regression model's mean absolute error was 1. 15%,so the neural network models were effective in predicting the slurrying,and the M_(ad),HGI,O / C model was the best among the three prediction models.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 620K]

  • Influence of modified high shear emulsifying sludge on coal water slurry slurryability

    CHEN Hao;WANG Guofang;HE Guofeng;Energy Conservation and Engineering Technology Research Institute,Coal Science and Technology Research Institute Co.,Ltd.;State Key Laboratory of Coal Mining and Environmental Protection;National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control;

    To take full advantage of sludge,the sludge was first modified by strong alkali,then the products was sheared and emulsified. At last,the modified sludge was mixed into coal in order to prepare high concentration coal water slurry( CWS). The effects of modified sludge on CWS concentration,viscosity,mobility and stability were investigated. The results showed that,when the dosage of Na OH were0. 5%,1. 0% respectively,the sludge viscosity were 251,244 m Pa·s,while the effects of excessive Na OH was not significant. Treated by high shear emulsifying sludge machine,the sludge viscosity was 251 m Pa·s which could reach 337 m Pa·s treated by sludge electric mixer. When the mass ratio of Na OH was 0. 5%,the dosage of sludge was 5%,the proportion of additives was 0. 5% and the ratio of coarse powder to fine powder was 80 ∶ 20,the sludge CWM was the best.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 218K]

  • Determination of trace germanium in coal,coal gangue and fly ash by peristalsis injection and shielded ignition-atomic fluorescence spectrometry

    LIU Fei;LI Zengqiang;CHEN Xinjuan;ZHANG Yuewen;WANG Xiaoyu;Key Laboratory of Coal Resources Exploration and Comprehensive Utilization,Ministry of Land and Resources;Shaanxi Coal Geological Laboratory Co.,Ltd.;

    In order to improve determination speed of total germanium in coal,coal gangue and fly ash,and reduce organic solvent amount,the peristalsis injection and shielded ignition- atomic fluorescence spectrometry( PISI- AFS) was used to determine the trace germanium content in coal,coal gangue and coal ash. The results showed that the detection limit of the method was 0. 0425 μg / g,the relative standard deviation was 1. 42%( n = 11),the linearity range of the standard curve could reach 1 ~ 400 ng / g,the recovery rate of germanium ranged from 98. 92% to 103. 79%. The relative error was less than 5%,which were between the PISI-AFS and distillation-Phenylfluorone spectrophotometry in GB / T 8207—2007. In the ion interference experiment,the relative error fluctulated in a range of-5% to 5%.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 526K]

  • Distribution and special characteristics of special coal types originated from syngenetic formation

    WANG Shaoqing;TANG Yuegang;LI Zhengyue;SUN Yibo;SHU Kunkun;MA Wei;College of Geoscience and Surveying Engineering,China University of Mining and Technology (Beijing);China National Administration of Coal Geology;

    The five special coal types originated from syngenetic formation were selected to discuss their specialities on properties,and to investigate their distribution and reserve for studying and usage of special coal types: barkinitic liptobiolith coal,cutinitic liptobiolith coal,suberitic liptobiolith coal,sporinitic liptobiolith coal and sapropelite coal. The utilization values of these special coal types were studied from energy and technology. The reasonable further usages of these coals were suggested combining with various items which were fundamental research,exploration and comprehensive utilization. The results showed that the special coal types originated from syngenetic formation had high volatile matter,high hydrogen content and high H / C atomic ratio,and great hydrocarbon-generation abilities. They were often distributed in some coal seams in certain coal forming period. The usage of the special coal types originated from syngenetic formation was wide concerning on as energy and technology aspects. For reasonable utilization of the special coal types originated from syngenetic formation in future,some measures should be taken such as making fundamental research and investigating coal reserve and so on.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 163K]

  • Application and research progress of coal chemical structure model

    WANG Feng;LI Guangyue;LI Yingying;LIANG Yinghua;College of Chemical Engineering,North China University of Science and Technology;

    In order to know the relationship between structure and reactivity of coal,the typical chemical structure model of lignite,subbituminous coal,bituminous coal and anthracite were investigated,the application of these chemical structure models of coal,such as pyrolysis,gasification,liquefaction,spontaneous combustion and solvent swelling of coal were discussed. The chemical structure of coal contributed to the reaction pathways and reaction mechanism during the reaction of coal at the molecular level. The method of coal structure simulation helped to capture the bond cleavages and formations during pyrolysis,it explained the mechanism of gasification and captured unstable free radicals during the liquefaction reaction and explained the influencing factors of coal spontaneous combustion from micro aspects which prevented coal spontaneous combustion.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 1194K]

  • Research and development of thermal conversion characteristics for low rank coal

    PEI Xianfeng;Beijing Research Institute of Coal Chemistry,China Coal Research Institute;State Key Laboratory of High Efficient Mining and Clean Utilization of Coal Resources;National Energy Technology & Equipment Laboratory of Coal Utilization and Emission Control;

    In order to efficiently use low rank coal,the influence of raw coal properties which were metamorphism,petrological composition,moisture and technological conditions including heating rate,pyrolysis temperature,pressure and gas atmosphere on products characteristics were analyzed. The yield and quality of low rank coal in thermal conversion under different conditions were analyzed. Some practical utilization mtehods were introduced. The classification conversion poly-generation technology with pyrolysis as the leader was a suitable way for low rank coal utilization in China. The basic scientific research of low rank coal in thermal conversion process should be deeply developed,such as the rules of free radical / functional groups cracking,migration,polymerization in the process of low rank coal thermal conversion should be revealed from molecular levels. Pyrolysis as a guide,transfer the volatile into oil and gas resources,then put the gas,semi-coke and tar into advanced products.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 148K]

  • Thermal economic analysis of turbine extraction steam pre-drying lignite

    WANG Zhichao;YANG Zhongcan;LIU Jiali;ZHAO Yonggang;LI Yan;YAO Wei;Xi'an Thermal Power Research Institute Co.,Ltd.;Shenhua Shendong Electric Power Co.,Ltd.;

    To achieve cascade utilization of lignite and large-scale lignite unit,through coupling the rotary steam tube dryer together with the boiler system,and using the low-pressure turbine extraction steam as drying medium,the theoretical analysis model of turbine extraction steam pre-drying lignite was established. And the methods which calculated the steam flow for pre-drying as well as the unit economy were proposed. Compared with the reference unit,using pre- drying,the moisture of lignite was decreased from 38% to 27%,20% and14% by turbine extraction steam,the coal consumption rate increased by 1. 99,3. 89 and 5. 05 g / k Wh when using the fifth stage turbine extraction steam. The coal consumption rate increased by 0. 84,2. 26 and 3. 31 g / k Wh when the sixth stage turbine extraction steam was used. The results showed that the coal consumption rate of turbine extraction steam unit had a general increase. The lower pre-drying lignite dryness level,the better the unit economy. And the lower turbine extraction steam quality,the better the unit economy.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 789K]

  • Research progress and prospect of new type pillared montmorillonite catalyst based on direct coal liquefaction

    FANG Liang;ZHOU Shengwen;ZHAO Huan;LYU Xiaoxuan;WANG Li;College of Chemical and Environmental Engineering,Shandong University of Science and Technology;

    Based on the development status of catalysts for direct coal liquefaction,a new type of pillared montmorillonite catalyst was prepared through pillaring technique using montmorillonite as catalysts support,Fe and Cr,Co,Ni as active hydrogenation components. The advantages of pillared montmorillonite catalyst in direct coal liquefaction technique was analyzed,the domestic and foreign research progress of the pillared montmorillonite's preparation technique was reviewed. The main preparation process of new typepillared montmorillonite catalyst was summarized. Finally,the key factors which affected the catalytic activity and thermal stability of the pillared montmorillonite were pointed out. The results showed that,the pillared montmorillonite catalyst obtained by pillaring active hydrogenation components into the montmorillonite layer had excellent catalytic hydrogenation performance. The optimization of pillaring process,the development of catalyst with good thermal stability,and the adjustment of pore size distribution was the focuse in the future.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 309K]

  • Heat transport characteristics of activated coke particles in moving bed

    DING Kaili;HU Chen;DENG Xianhe;School of Chemistry and Chemical Engineering,South China University of Technology;

    In order to investigate the heat transport characteristics of activated coke particles in moving bed,heat transfer experiment has been conducted,using tube and shell heat exchanger as the main process. Heated air and activated coke particles showed in a countercurrent flow mode in the heat exchanger. According to variable-controlling approach,the temperature difference ΔT_mand heat load Q caused by heat transfer,total heat transfer coefficient K of different experimental conditions,such as different wind speedu_s,the outlet temperature of hot air when the activated coke particles began to unload T_(air)and speed of unloaded activated coke particles v_pwere determined. The results indicated thatu_smade a big difference on ΔT_m,and the greateru_s,the bigger Q and K,closely related to the power ofu_swith n =0. 64. With theu_sreaching to 16 m / s,v_pbecoming 150 kg / h and T_(air)turning into 40 ℃,the total heat transfer coefficient highly reached to 9. 32 W /( m~2·K). With the rising T_(air),There was no obvious change in ΔT_m,a smaller value in Q and K,when negligible variation in K ranged from 70 ℃ to 80 ℃. Moreover,as v_pincreased,ΔT_mslowly increased,at the same time Q and K increased linearly. Higher than7. 5 W /( m~2·K),K increased linearly by 0. 9 W/( m~2·K) with each 50 kg/h rises,which displayed an observable effect on totality.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 1112K]

  • Research progress and prospect of low rank coal catalytic pyrolysis

    SUN Renhui;GAO Peng;LIU Aiguo;LU Haiyun;CHEN Aiguo;GUO Yi;National Institute of Clean-and-Low-Carbon Energy;

    In order to promote coal catalytic pyrolysis technology,the mechanisms of coal catalytic pyrolysis of metal catalyst,support catalysts and coal base catalytic were introduced,and their effects on coal pyrolysis characteristics and products distribution were analyzed.Based on different catalytic mechanisms,the coal catalytic pyrolysis process was divided into direct catalytic pyrolysis process,indirect catalytic pyrolysis and catalytic pyrolysis process. Their research status and prospect were analyzed. The results showed that transition metal catalyst and molecular sieve could transform pyrolysis products distribution and improve tar yield,while metal oxide catalyst could improve coal pyrolysis conversion rate,regulate gas products distribution and increase gas phase yield. New research showed that co- pyrolysis of coal direct liquefaction residues( CDLR) and lignite could reduce the reaction activation energy of the active solution stage,speed up the reaction rate,increase pyrolysis conversion rate,improve tar yield and affect gas phase product distribution. The positive synergetic effect of CDLR and coal co-pyrolysis needed to be further studied.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 174K]

  • Research progress on prediction methods of coal ash melting temperature

    LIU Shuo;YANG Fusheng;ZHANG Xiaoyan;JING Yunhuan;YANG Lei;CAI Huiwu;ZHOU Anning;College of Chemistry and Chemical Engineering,Xi'an University of Science and Technology;College of Comperture Science,Xi'an University of Science and Technology;Coal Chemical Industry Company,Shenhua Ningxia Coal Industry Group;

    In order to predict coal ash melting temperature,the present situation of ash melting temperature prediction model at home and abroad was introduced,including regression analysis method,BP neural network method,support vector machine( SVM) method and FactSage software method. The application of regression analysis method was widely used,the correlation coefficient of predicting formula fitted by the least square method was higher,while its adaptability was poorer. The adaptability of BP neural network was stronger,but the large amounts of data must be input for training the model. The SVM method was better than the first two,but it couldn't clarify the ash melting process of mineral evolution law,that meant it couldn't scientificly indicate ash melting characteristics change mechanism. Fact Sage software method had higher prediction accuracy,it could clarify the process of mineral ash fusion conversion and optimize the ash melting temperature of evaluation criteria. Based on the properties of Fact Sage software method,a more reliable prediction model could be established.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 160K]

  • Comparison of environmental impact for three different coal-fired boilers using life cycle assessment method

    LIU Anyuan;LIU Siyu;MA Yufeng;School of Pipeline and Civil Engineering,China University of Petroleum;School of Energy Engineering,Zhejiang University;Shengli Power Plant,Administration Bureau of Shengli Oilfield,Sinopec;

    In order to compare the energy consumption and environmental impact of three coal-fired boilers( grate boiler,fluidized bed boiler,coal water slurry fired boiler) for district heating,life cycle inventory analysis and environmental impact evaluation were conducted using life cycle assessment( LCA) method. Life cycle inventory results showed that: generating the same amount of hot water,three kinds of boilers all had high CO_2,solid waste and particulate matter emission during the whole life cycle period. Environmental impact research results showed that the environmental impact load of coal-fired grate boiler was the highest,and the one of CWS-fired boiler was the least.In addition,for each kind of boiler,the environmental impact of produced pollutants on solid waste in environment was the largest,followed by particulate matter,photo-chemical smog,global warming,acid rain and eutrophication.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 320K]

  • Effects of pyrolysis temperature on grindability of char using pulverized coal injection in Blast furnace

    ZOU Chong;LI Bao;ZHAO Junxue;LI Xiaoming;School of Metallurgical Engineering,Xi'an University of Architecture and Technology;

    In order to investigate the effects of pyrolysis temperature on grindability of char,Hardgrove grindability index( HGI) of different char prepared from three kinds of coal was tested by HGI apparatus,and the crushing feature of chars was investigated by laser particle size analyzed. The results showed that the grindability of char increased first then decreased with the increase of pyrolysis temperature. The pyrolysis temperature corresponding to the highest value of HGI was 540 ℃. The grindbility of char couldn't be predicted by the prediction equations of coal. The pulverization pathway of char was volume crushing-based,followed by surface crushing. The pyrolysis temperature played a critical role in char crushing process,and there should be corresponding relationships between the level of particle size and grindability. During the low temperature pyrolysis technology,the grindability of char for using PCI could be improved by properly decreasing the pyrolysis temperature in the scale production of lower temperature pyrolysis of coal.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 1489K]

  • Thermogravimetric experimental study on low-temperature oxidation of coal in Bulianta mine

    WEI Yanrong;XIAO Cuiwei;WANG Naiji;WANG Yongying;Energy Saving Engineering Technology Branch,Coal Science and Technology Research Institute Co.,Ltd.;State Key Laboratory of Coal Resources High Efficient Mining and Clean Utilization,China Coal Research Institute;National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control;

    In order to investigate the oxidation characteristics of coal at low temperature,the thermogravimetric experiment had been carried on under different oxygen concentration and temperature raising rates. The results showed that,the characteristic temperature of coal increased as the heating rate increased,and decreased as the oxygen concentration increased. Coats-Redfen integral formula was used to calculate the activation energy of zone from the temperature where the maximum weight lost begins to ignition temperature. The results suggested that the activation energy increased as the heating rate increased,and increased as the oxygen concentration increased. TG curves drifted to the high-temperature section with the heating rate increased,and drifted to the low-temperature section with the oxygen concentration increased. It indicated that within a certain range,the increase of the oxygen concentration could short the reaction time,while raising the heating rate could extend reaction time.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 741K]

  • Technical innovation research on energy saving and efficiency improvement of industrial pulverized coal boiler

    WANG Xuan;Elion Clean Energy Technology Co.,Ltd.;

    In order to improve stability of industrial pulverized coal boiler and energy utilization rate,the operating parameters and system output were compared from the aspects of outlet pressure of furnace,furnace temperature,exhaust gas temperature and steam flow before and after innovation. The results showed that,when the operating load was 80% of the rated load,after transformation,the outlet pressure of furnace could be controlled to-100 Pa,the amplitude ranged rom-30 Pa to 30 Pa,the temperature field stabilize at 880. 7 ℃ to 1007. 9℃,the carbon content of fly ash and bottom ash was below 5% and 1% respectively. Meanwhile,the exhaust gas temperature could be controlled within 130 ℃ to 140 ℃ which met the design requirement. The steam flow ranged from 22 t / h to 25 t / h and the thermal efficiency was 89. 07% when the parameter of screw feeder frequency was controlled from 30 Hz to 40 Hz.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 478K]

  • Common problems and countermeasures of CFB boiler SNCR denitrification technology

    ZHAO Pengbo;SUN Tao;GAO Hongpei;YU Wugao;AN Cheng;LIU Dong;HUI Xiaolong;Huaneng Clean Eneargy Research Institute Co.,Ltd.;CPI JIANGXI electric power Co.,Ltd.,FENYI Power Generation;

    In order to reduce NO_xemission of coal-fired power plant,the principle of SNCR was introduced. The common problems of the technology in CFB boiler were summarizedb. Taking a homegrown 330 MW CFB boiler SNCR denitration method as research object,the characteristics of denitration process were analyzed. The denitration efficiency was low,the ammonia consumption and escaping ammonia were large. The problems were resolved by changing spray gun position,optimizing low nitrogen combustion and pulverization.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 964K]

  • Utilization of coke oven gas in China and its potential for reduction of CO_2 emission

    BAI Zongqing;BAI Jin;LI Wen;State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences;

    Coke oven gas( COG) is the specific gas energy sources and potential raw material for chemical production. Huge amount of COG is produced as a by-product in coking industry and its comprehensive utilization is of great importance for energy saving and carbon emission. The utilization methods of coke oven gas in China including COG to methanol,COG to electricity,and COG to natural gas and so on were reviewed. Several coking plant,compositon and the default carbon content of COG,oxidation factor( Fo) during COG combustion were analyzed. The results showed that the default carbon content of COG in China was lower than that given by Intergovernmental Panel on Climate Change( IPCC). Furthermore,the contribution and potential of COG utilization for reducing CO_2 emission was analyzed. It was pointed out that the efficient utilization of COG in China,especially the COG to chemicals,was very favorable for energy conservation and CO_2 emission reduction.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 261K]

  • Research progress of low-temperature SCR denitrification manganese-based catalysts

    XIAO Cuiwei;LI Ting;Coal Science and Technology Co.,Ltd.;State Key Laboratory of High Efficient Mining and Clean Utilization of Coal Resources;National Energy Technology and Equipment Laboratory of Coal Utilization and Emission Control;

    NO_xare the main pollutants in atmospheric environment,which harm human health and ecological environment. Selective catalytic reduction( SCR) of NO_xto N_2 is one of the most effective methods for denitrification technology,and the catalyst is the key of denitrification system. Manganese oxide- based catalysts had been paid more attention due to their excellent catalytic reduction of NO_xby NH_3( NH_3-SCR) at low temperature. The research status of manganese-based catalysts for low temperature SCR denitrification was introduced according to non-carrier type and carrier type. The influence of carriers,element doping on catalyst activity and efficiency of denitrification were indicated. These catalysts with high catalytic activities for low-temperature SCR should have high surface area and well amorphous structure. The research emphasis of manganese-based catalysts for low temperature SCR denitration in the future was previewed.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 175K]

  • Current status and problems shale gas development in Guizhou province

    ZHOU Shilai;Guizhou Vocational Technical Institute;

    In order to research the shale gas reserves distribution and development utilization in Guizhou Province,the shale gas resource reserve distribution in north and south of Guizhou province were analyzed based on The Shale Gas Resource Potential Ealuate in China,Shale Gas Research and Appraisal the South of Guizhou Province and other sources. The results showed that,the geological reserves of shale gas in Guizhou Province were 1. 3. 54×10~(13)m~3,the recoverable resources were 1. 95×10~(13)m~3. The key exploratory areas were Suiyang,Fenggang and Cengong. The problems were that the exploration technologies lagged behind developed countries,professional talents and equipment were not enough,the commercial exploitation of shale gas was still in exploring.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 293K]

  • Separation of alumina and gallium oxide by two-stage carbonization method

    LI Ting;XIN Zhifeng;XU Meng;BAI Linshan;DONG Yongping;CHU Xiangfeng;School of Chemistry and Chemical Engineering,Anhui University of Technology;

    In order to extract mixture of alumina and gallium oxide from high-aluminum fly ash,the separation of alumina and gallium oxide with two-stage carbonization method was studied according to the difference of acidity between gallium hydroxide and aluminum hydroxide precipitation in alkaline solution. A certain amount of alumina was isolated. Taking the first-stage carbonization process as research object,the influence of p H,flow rate and temperature on the separation of alumina and gallium oxide. The results showed that,when the p H was 11. 23,the temperature was 80 ℃,the flow rate of CO_2 was 40 m L / min. The content of Ga in the mixture could reach 5. 7550 mg / g.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 600K]

  • Energy-saving way analysis of small-medium coal-fired industrial boilers

    WANG Chunjing;Beijing Research Institute of Coal Chemistry,Coal Science and Technology Research Institute Co.,Ltd.;State Key Laboratory of Coal Mining and Clean Utilization;National Energy Technology and Equipemnt Laboratory of Coal Utilization and Emission Contral;

    In order to improve efficiency of small-medium coal-fired industrial boilers,reduce their emissions,the energy saving effects of coal-fired industrial boilers were analyzed from clean fuel alternative,central heating alternative,advanced technology of industrial boilers and coal quality improvement. The applicable region of four energy-saving ways and energy saving effects under policy scenario were introduced. The results showed that,by adopting the above four energy-saving ways,the small-medium coal-fired industrial boilers could save standard coal 7. 611×107tons,reduce SO_2 emissions 1. 96×10~6tons,reduce CO_2 emissions 1. 4613 ×10~8tons by 2018; save standard coal1. 1456×10~8,reduce SO_2 emissions 3. 1×10~6tons and reduce CO_2 emissions 2. 1995×10~8tons by 2030.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 153K]

  • Properties and utilization of Wuhai coal

    HUANG Shiping;LI Liye;LIU Xu;TIAN Jinglei;ZHAO Yanqing;LIU Hongqiang;Hebei Iron and Steel Technology Research Institute,Hesteel Group;

    In order to understand the coal quality and coking characteristics of Wuhai coal,the traditional coal properties,coal petrologic parameters,Hoya expansion measurement and Gieseler fluidity measurement of Wuhai coal were studied. Its small coke oven test of blending and coking and industrial application effects were investigated. The results showed that Wuhai coal was high telocollinite relative content,and it showed wide plastic temperature range of colloid and high maximal flowing. The sulfur content of Wuhai coal was high. The practical application in big coke oven of Hansteel corporation showed that,the coke production cost reduce and the coke quality improved by replacing 6% Nanguan fat coal with 6% Wuhai coal.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 122K]

  • Research progress of gasification slag utilization from indirect coal liquefaction process

    LIU Ziliang;SUN Yingjie;LI Weihua;YANG Qiang;MA Qiang;Department of Environment and Municipal Engineering,Qingdao Technological University;

    In order to improve utilization rate of gasification slag,the background,research status,future trends of indirect coal liquefaction technologies in China were introduced,and the process of indirect coal liquefaction,generation,hams and composition of gasification slag were reviewed. The domestic and foreign research status of gasification slag in waste water treatment and construction industry were summarized. The gasification slag was mainly used in paving,preparation of baking- free bricks,concrete and Portland cement and other aspects. The problems of gasification slag existing in limitations of application and defects of products were discussed.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 274K]

  • Sedimentary environment of coal-bearing strata and effects on coal researvoir development in Shenfu Block

    GUO Guangshan;TAO Zongpu;DU Xiyao;New Energy Research Center,CNOOC Research Institute;

    Sedimentary environment determines the material basis of CBM generation and accumulation,it also impacts the combinations of reservoir and cap rock of CBM. The Carboniferous Benxi Formation and Permian Taiyuan Formation are the main coal-bearing strata in the study area. The results showed that the barrier coast-delta deposition was the mainly face in Benxi Formation and Taiyuan Formation was delta system controlled by tide though the comprehensive analysis of formation lithology,particle size and fossil. The differences of stability,thickness,coal quality and preservation conditions between the main coal seam 4+5 and 8+9 were caused by different sedimentary environment. By comparing the characteristics of two main coal seams,the sedimentary facies of Benxi Formation was more beneficial than Taiyuan Formation for the enrichment and preservation of CBM reservoirs.

    2016 01 v.22;No.101 [Abstract][OnlineView][HTML全文][Download 1203K]
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