2010年02期目次

  • Technical and economic analysis on coal based synthetic natural gas Xinjiang Yili state

    LIU Guang-qi, BAI Liang, YU Xiao-zhong(Synfuels China Engineering Co., Ltd., Beijing 100195, China)

    Analyze coal resource and using status in Xinjiang Yili state.On the base of the second West-East natural gas transmission project constructed,the policy、technology、production scale、site selection and supporting resources of coal to substitute natural gas were discussed.With technical and economic analysis method to analyze the representative coal and technologic process.In the end,drawout the feasibility conclusion of coal based synthetic natural gas in Xinjiang Yili state.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 765K]

  • Study on 3GDMC1500/1100A three-product dense medium cyclone with non-pressured feeding

    ZHAO Shu-yan~1, ZHANG Chun-lin~1, XU Xue-wu~1, YAO Wei-min~1,CHEN Jian-kang~2, YUAN Zhi-guo~2, ZHANG Hong-qiang~2(1.Tangshan Guo Hua Technology Co., Ltd., Tangshan 063020, China; 2.Qipanjing Coal Preparation Plant, Shenhua Mengxi Coal-Chemical Co., Ltd., Tangshan 063020, China)

    Introduce the research and development point, production quota of 3GDMC1500/1100A three-product dense medium cyclone with non-pressured feeding. Highlight the technique indexes acquired by single machine test, effect of grain size sorting and lower limit of separation.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 2584K]

  • The application of horizontal type settling-filtering centrifugal dewaterer in Luliangshan

    GAO Wei-qiang~1, MU Gao-jian~1, SHI Ying-xiang~2(1.Lvliangshan Coal Company Coal Washary, Huozhou Coal Group, Lvliang 033102, China;2.Tangshan Branch, Tiandi Science and Technology Co., Ltd., Tangshan 063012, China)

    Introduce the application of horizontal type settling-filtering centrifugal dewaterer in Luliangshan. Analyze the problems and causes in operation. This equipment can recycle rigid granules existed in flotation concentrate and concentrated backhead slurry, water content of product meet the demand of requirement. And the dehydration effect of the former is better than the latter. This equipment is not strictly in order of size grading. Filtrate contains a large number of +0. 074 mm size-class of solid particles losing a large quantity of solid. Filtrate need further dewatering while deal with flotation concentrate.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 1048K]

  • Reaserch on kerosene emulsifier as collector in fine coal flotation

    LIAO Yin-fei, AN Mao-yan, XIA Wen-cheng(School of Chemical and Engineering, China University of Mining and Technology, Xuzhou 221116, China)

    Abstract: In view of the characteristics of fine coal flotation, kerosene which is used as collector in coal separation was emulsified. The results show that the emulsified kerosene with a strong collector ability and high selectivity can significantly improve the flotation performance of fine coal and reduce the collector consumption, also has remarkable economic and social benefits. The theoretical action mechanism of the emulsifying reagent is described.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 440K]

  • Application of compound dry coal separation technology in Qinglong mine

    GUO Bu-lu(Guizhou Qianxi Energy Development Co., Ltd., Bijie 551500, China)

    Introduce the structure、coal separation technology grading separation principle features and application in Qinglong mine. Point that dry coal separation which has the benefits of short construction periods, low investment, quick effect can raise the quality and efficiency of mine. This equipment has a very good promotional value.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 105K]

  • Research of dry coal separation technology of air dense medium fluidized bed

    WEI Zhong-kuan(China Coal Handan Design Engineering Co., Ltd., Handan 056031, China)

    Discuss the reorientation of dry coal separation technology of air dense medium fluidized bed starting from the reality of water shortages, combined with the development of science and technology status. Analyze this technology and its development potential in order to promote the popularization and application of this technology.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 246K]

  • Research on compressive strength experiment of drying sludge briquette

    DONG Ping, ZHANG Xin, JIAO Jian(College of Resource and Environment Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China)

    The briquette binder was prepared by drying sludge using microwave drying, mixed with the pulverized coal to suppress. Inspect the effect of briquetting pressure, moisture and proportion of drying sludge on the compressive strength of briquette by orthogonal test method. The results show that compressive strength of drying sludge briquettes is better than clay briquettes; briquetting pressure, moisture and proportion of drying sludge are major factors in the compressive strength of briquette, the range of content are that briquetting pressure is 25～30 MPa, moisture of drying sludge is 40%, proportion of drying sludge is 20%～30%.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 681K]

  • Study on the development of property of FCC slurry and its coprocessing with coal

    LI Qun(Huaneng Manchuria Coal Chemical Co., Ltd., Manchuria 021400, China)

    Introduce the composition, properties and traditional application of FCC slurry and review the research status of its high added-value liquefaction utilization with coal. New idea is provided not only for improving the property of cycling solvent but also for high-efficiency clean utilization of FCC slurry. On the basis of achievements and problems, future focus-oil coal processing are pointed out and utilization of FCC slurry are broadened for the important guidance of Chinese direct coal liquefaction.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 193K]

  • Study on computational method

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

    Coal direct liquefaction solvents were examined with ~1H-NMR, elemental composition, molecual, density, diopter, etc. The average structural parameters of liquefaction solvent were calculated respectively by means of n-d-M method and Brown-Lander's method. The results show great difference between the above two methods for prehydrotreated solvents, the calculating error is little between these two kinds of methods for hydrotreated solvents. The average parameters of n-d-M method were modified to suit for liquefaction solvent, veracity of the formulas were validated.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 591K]

  • Progress of low temperature coal carbonization and improvement suggestions in Northern Shaanxi

    XU Rui-fang(Shaanxi Coal Chemical Technology Engineering Center Co., Ltd., Xi'an 710075, China)

    Propose low temperature coal pyrolysis process improvement program combining the present situation in Northern Shaanxi. Several technologies of coal pyrolysis with solid heat carrier at home and abroad were compared and discussed. In view of coal resource comprehensive utilization and environmental protection point that the polygeneration system combines CFB combustion technique with coal pyrolysis has a good development prospect.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 443K]

  • Experimental study on effects of operation parameters on entrained flow pulverized coal gasification

    LU Cheng, ZHANG Zhong-xiao, WU Xiao-jiang,HUANG Feng-bao, CHEN Guo-yan,ZHOU Guo-feng(School of Energy and Power Engineering, Shanghai University of Science and Engineering, Shanghai 200093, China)

    Experimental studies on gasification characteristics of both high and low fusing temperature coal were carried out by using experimental equipment for atmospheric pressure entrained-flow gasification in a 1600℃ drop tube furnace. Investigate the characteristics of dry coal gasification in the temperature of 1200℃ to 1600℃ and O/C molar ratio 0.9 to 1.2. The concentration of CO and H_2,the carbon conversion all increase with increasing reaction temperature whereas the concentration of CO_2 and CH_4 decrease with increasing reaction temperature; With increasing O/C ratio,the concentration of CO and H_2 decrease and the concentration of CO_2 increase; Ash fusing characteristic of coal is a key factor on the syngas composition, The CO+H_2+CH_4 content of the product gas exhibit a maximum around the ash fusion temperature.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 634K]

  • Study on test methods of explosive characteristics of pulverized coal

    WANG Yue-ming, XIANG Da-guang, ZHANG Sen(Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710032, China)

    Introduce a test method of explosive performance for temperature adjustable pulverized coal/air mixture. Test results show that the test methods and evaluation methods well reflect the explosive characteristics of pulverized coal. Provide a reference for determining the explosive characteristics of pulverized coal and developing a variety of anti-explosion measures of Chinese power plant.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 1826K]

  • The influence of coal quality and blending structure on coke thermal property

    XUE Shi-ke~1, XIE Chun-de~2, MA Yan-li~3(1.Hebei Institute of Vocational Technique, Shijiazhuang 050091, China;2.Hebei Iron & Steel Group Handan Iron and Steel Coking Plant, Handan 056031, China;3.Hebei Jinrun Gas Heat Engineering Design and Consultation Co., Ltd., Shijiazhuang 050031, China)

    The thermal reaction of coke and thermal evaluation of coke strength which are effected by many factors are important indicators of thermal properties. Analyze these two indicators from coal quality and blending structure according to steady datas from Handan Iron & Steel Group, Han Bao's coking plant.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 439K]

  • Research analysis of flue gas cleanup with activated coke in China

    BU Xue-peng~1, XU Zhen-gang~2, LI Wen-hua~3, LIANG Da-ming~2, SUN Zhong-chao~2,LI Xue-fei~2, XIONG Yin-wu~2, WU Tao~2, LI Lan-ting~2, ZHANG Ke-da~2((1.Beijing Reserch Institute, China Shenhua Coal Oil Chemical Co., Ltd., Beijing 100011, China;2.Beijing Research Institute, China Coal Research Institute, Beijing 100013, China;3. GE Global Research-Shanghai, Shanghai 201203, China)

    Based on the research results of "973 project" and literature, the research status of flue gas desulphurization, denitration and mercury removal, the contaminations simultaneous removal by using activated coke, the application status of flue gas cleanup by activated coke are summarized and analyzed. Some suggestions are also proposed.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 474K]

  • Study on the briquette forming and sulfur-fixing effects of compound binder

    LI Chun-tao,XU Bing, LIANG Yu-xiang(Chemical Engineering, Sichuan University, Chengdu 610065, China)

    A new compound bio-briquette binder was developed, and its feasibility was proved by the experiments. The compound binder mainly was composed of the modified biomass and inorganic curing agent. The samples were analyzed by SEM and EDS to study the structure and composition of bio-briquette, and research on the effects of compound binder on properties of briquette forming. Pre and post burning elemental analysis studied the effect of compound binder on sulfur element. It was found that the compound bio-briquette binder enhances the compressive strength of briquette, and Mg and Cl elements play main roles in bonding. It is else found that the compound binder is suitable for capturing sulfur briquette, the desulfurization rate is 34% and the final product is MgSO_4.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 791K]

  • Regressively analyse the North Korean anthracite and thermal value

    HU Shun-feng, SUN Yan-hui, GUO He-yan(RizhaoEntry-Exit Inspection and Quarantine Bureau, Rizhao 276826, China)

    Based on the statistical analysis of quality index on No. 118 North Korean anthracite imported from ports of Shandong, make a regression analysis on some key index. Summarize main quality characteristics on the imported anthracite that are major fluctuation of total moisture(TM) and ash content. Fixed carbon and NAR (Net as received) fluctuate accordingly; volatile matter(VM) and hydrogen content are low and stable; Sulfur is of low content; GCV (Gross Calorific Value) is remarkably related with Ash content, so is the NAR and TM, Ash Content. Referred to the above summarization, Sales department and laboratory are able to make full use of regression equation to verify quality controlling and inspection.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 363K]

  • Current situation and development of flue gas desulfurization in coal-fired enterprise of China

    WU Qiong, HE Xu-wen, ZHU Tao, YANG Chao(College of Chemistral and Environmental Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China)

    Current situation and development trend of flue gas desulfurization incoal-fired enterprise of China were introduced. Scope of application, technical parameters, application project instance and so on were analyzed and compared. There was a comparison of economic accounting between the limestone/lime-gypsum and magnesium method in particular. The relevant basic data and application information can be provided for the development trend of desulfurization technology in our country.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 433K]

  • Hydrogen production by catalytic decomposition of methane over activated carbon

    YANG De-min(Huaneng Manchuria Coal Chemical Co., Ltd., Manchuria 021400, China)

    Introduce the developing trend of the technique of production hydrogen from catalysis methane decomposition over activated carbon abroad. Mainly concentrate on the influence of texture of activated carbon characteristics and surface chemical properties and its deactivation mechanism. Focus on the chemical reaction mechanism reacted on the surface of activated carbon and mechanism of methane; dissociation as well as carbon reactivation. Optimize the nature and the operational parameters of activated carbon and strive for breakthrough in the mechanism of production hydrogen from catalysis methane decomposition over activated carbon.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 298K]

  • Coal blending technology and design of automatic control system

    DING Hai-feng, SONG Zhao-long(School of Energy and Environment, Southeast University, Nanjing 210096, China)

    Discuss the main technical of the coal blending, conduct a major study of the model and process of coal. Design the automatic coal blending system based on the technology of on-line element analysis on coal, which provides a new approach for automatic coal blending system.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 242K]

  • A new method of preparing polished powder coal from coal rock

    LIU Yang(Sinosteel Anshan Research Institute of Termo-energy Co., Ltd., Anshan 144044, China)

    Review the methods of preparing polished powder coal from coal rock and analyze problems in grinding. A new method for grinding and polishing is put forward which has the benefits of simple steps, short grinding time, broader applicability. Compared with traditional methods, the new method is a fast, effective and ideal method for preparing polished powder coal.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 114K]

  • The evaluation of water environment quality of coal mining district

    SONG Xiao-meng~(1,2), YANG Miao~(1,2), LIU Yong~1, XIANG Guo-rui~3(1.School of Resource and Earth Science, China University of Mining and Technology, Xuzhou 221116, China;2.China University of Mining and Technology Graduate School, Xuzhou 221008, China;3.Geo-Environment Monitoring Station in Anhui Province, Bengbu 233000, China)

    The groundwater environment quality evalution, which is the scientific basis to utilize and protect the water resources, has become the most important content of water resources protection in coal mining district, and it is the main influencing factor for sustainable development of coal mining district. Based on gray-clustering analysis, the monitored data of underground water collected from coal mines in Liuqiao mining area were analysed to determine the classifications of the mining water quality of the studied area. The results show that the groundwater environment quality in coal mining area is seriously affected by the exploitation of coal mining. The evaluation results provide a reliable basis for water conservation and water recycling.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 865K]

  • Study on evaluation of ecological restoration based on the multi-level fuzzy synthetic evaluation method

    CHEN Hao, ZHANG Kai(College of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China)

    The evalutation index system of ecological restoration of Shendong coal district was put forword. Propose the multi-level fuzzy synthetic evaluation method based on this system. Evaluate the level of sustainable development of ecological restoration in the select three reference years according to mathematical model. Analyze and discuss the results based on actual situation and point out the shortcomings of ecological restoration.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 855K]

  • Preparation of ultrafine calcined kaolinite using coal gangue in Da-tong coal mine

    WANG Yu-ming(Environmental Protection Department of Datong Coal Mine Group Company, Datong 037003, China)

    Coal-kaolinite is commonly known as "Datong black sand and gravel" because of vast reserves and fine texture in Datong. The coal gangue calcines high-quality kaolin through large-scale process. The new chemical project has the excellent technical support, optimization of the management system, extensive sales channels, wide range of applications and obvious comprehensive benefits. This project has a wide range of promotional value in the same coal enterprises.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 418K]

  • Reservoir characteristics of Huanxiling-Shuguang slope of West depression of Liaohe fault depression

    LEI Ke-hui~(1,2), CHANG Xiu-fen~3, HU Han-min~4, TAO Shu~1(1.Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism,Ministry of Education, China; School of Energy Resources, China University of Geosciences (Beijing),Beijing 100083, China;2.American PST Corp., Beijing 100101, China; 3.Halliburton(Tianjin) Beijing Branch of Energy Service Companies, Beijing 100004, China; 4.CNPC. NILE., Beijing 100034, China;)

    The characteristics of rock association,pore types,pore characteristics of Paleogene sandstone reservoirs in Huanxiling-Shuguang slope (West slope) of Liaohe fault depression were expounded.The reservoir property and the influencing factors of reservoir property were evaluated.The results show that it makes a great difference in reservoir properties of sandstone reservoirs in the study area.Not only the different strata,but also the same floor-bit of sandstone have great differences in reservoir properties.Occurrence characteristics of sand bodies have a certain impact on physical properties.The thicker single-layer sandstone reservoir is often better in reservoir properties. The main influence factors of reservoir property of sandstone reservoirs in study area are deposition,diagenesis, parent rocks lithology of source area,fault activity,paleotopography,etc.While in most cases,diagenesis makes a greater impact on reservoir properties,or even decisive.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 761K]

  • Synthesis of the acid modified water-in-water type polymeric flocculants St-AM

    KANG Wei~(1,2), WANG Guang-hua~(1,2), LI Wen-bing~(1,2), LI Lei~3, WANG Jing-qiong~(1,2), HUNG Ting-ting~(1,2)(1.College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081, China;2.Hubei Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan 430081, China;3.Center of Analysis and Test, Wuhan Institute of Technology, Wuhan 430074, China)

    Acid modified starch and water-in-water emulsion were made in laboratory,and St-AM was synthesized in water-in-water.Factors that effect graft efficiency,dissolving time of production were discussed such as temperature, acrylamide quality,initiator quality,vitriol quality concentration and so on.Conclude the best way of synthesizing acid modified St-AM emulsion and the best dosage of diversified reagents.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 741K]

  • Research on hydroresistance in pores of porous filters using clean coal technology

    LI Yong-jin, LIU Xiao-cui, DING Ying-jie(College of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China)

    Expounded the existing problems of porous filters while using clean coal technology,Gasar metal porous filter material functions were briefly introduced.A simple design calculation model was built on the basis of analyzing hydroresistance which was used as the main evaluation index of permeability of porous materials.Therefore, the formulas of hydroresistance in pores of porous materials are obtained and the advantage of hydroresistant porous metal filter materials is theoretically proved.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 240K]

  • Progress in phase equilibria of CO_2-alkanol binary mixtures

    FU Dong, YANG Chuan(School of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China)

    The high-pressure phase equilibria of CO_2-alkanol binary mixtures is essential for the design and implementation of various industrial processes including chemical, food and pharmaceutical industries. The advances in experimental and theoretic research of the phase equilibria of these binary mixtures are reviewed, and the direction of the future development of the cross-association model for the high-pressure phase equilibria of CO_2-associating molecule binary mixtures are discussed.

    2010 02 v.16;No.66 [Abstract][OnlineView][Download 340K]



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