- NING Cheng-hao~(1), LIU Meng~(2), WU Li-xin~(1), CHEN Gui-feng~(1)(1.Coal Industry Clean Coal Engineering Technology Research Center. Beijing 100013, China; 2. Beijing Chemical University Beijing 100029, China)
The coal bed methane (CBD) utilization level is low due to the lack of technology, fund and market demand. A great amount of methane was emitted into the air, which effect on the global climate and cause also a great loss of clean energy. Clean Development Mechanism (CDM) can promote the sustainable development of the developing countries through brining in advanced technologies and funds from developed countries, as well as to help the developed countries fulfill their commitments in Tokyo Protocol. The comprehensive utilization of CBM has already been taken as one of the prior CDM fields by China government, which provides a valuable juncture to the Chinese CBM utilization as a kind of energy source.
2005 01 [Abstract][OnlineView][Download 95k] - REN Shi-hua~(1), YAO Fei~(1),YU Zhu-feng~(2)(1. Beijing University of Chemical Technology, Beijing 100029, China; 2. Clean Coal Engineering & Technology Research Center of Coal Industry,Beijing 100013, China)
The paper introduces a network method of Delphi, which can give the weighting of indexes in the clean coal technology evaluation index system. It shows the basic procedures, content and result of clean coal technology evaluation index system weighting by using the network Delphi. Method.
2005 01 [Abstract][OnlineView][Download 87k] - WU Li-xin,CHEN Gui-feng ,XIAO Nai-you,YU Zhu-feng(Coal Industry Clean Coal Engineering Technology Center, Beijing 100013,China)
Future energy demand in China is discussed. Western region has an important position in coal production of China. Also the existent problems in coal production were analyzed. A few of inaccurate point of view were existed for western coal exploitation and production. The western coal resources exploitation and utilization should adopt the advances reasonable plan and countermeasures.
2005 01 [Abstract][OnlineView][Download 89k] - PU Wen-xiu, ZHAO Wei, KONG Jin-yong, HAO Jun-jie, CHEN Xiu-qi, LI Wen-hui, LIU Jun(School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221008, China)
The reduction floatation desulfurization of coal by metal corrosion interaction was studied. The effect of mineral slurry potentials, pH value and temperature on floatation desulfurization from fine coal was researches. It is proved by experiment that pyrites can be restrained and the effect of pyrite removal can be proved under the low mineral slurry potential and temperature. A large number of researches show that the method on metal corrosion interaction can remove effectively sulfur from high sulfur coal and improve the product quality.
2005 01 [Abstract][OnlineView][Download 88k] - QIN Hua, XU Yan(Department of Resource and Environment, Helongjiang Science and Technology College. Haerbin 150057, China)
Hydrophobicity floatation collecting agent was dyed by organic dye under isothermal condition. After dyed of the floatation collected agent maybe into the hydrophobicity post of the β-cyclic dextrin host and to form with color host-gust clathrate due to inner of β-cyclic dextrin possess hydrophobicity and cavity hydroxyl posses hydrophilicity. The extinction of clathrate and collecting agent concentration has a certain proportion relation. The collecting agent concentration of floatation residual liquid may determination by spectrophotography and to gain the isothermal adsorption quantity of floatation collecting agent on the coal surface. Result is shown that, the isothermal adsorption quantity value is same by using this method and radiation concentration meter. Therefore, it can be provided a new method for determination the collecting agent isothermal adsorption quantity on coal surface.
2005 01 [Abstract][OnlineView][Download 68k] - BAI Su-ling~1, SI Ji-chun~2(1.Coal Preparation Plant, Wuyang Coal Mine, Luan Coal Industry Group, Changzhi 046205, China; 2. Beijing Campus, China University of Mining and Technology, Beijing 100083, China)
Process technical transformation was conducted by using the following method such as adding high frequency vibrating screen, reformed original XMZ 340/1500 filter press through scheme comparison. The transformation effect is very obviously such as increasing slime treatment quantity, decreasing labor intensity, slime water closed circulation and enhancing economic benefit.
2005 01 [Abstract][OnlineView][Download 62k] - FANG Zhao-lin, WANG Ping, CHEN Xin-gao(Qinan Coal Preparation Plant, Qinan Coal Mine, Huaibei Coal Industry Group. Suzhou 234115, China)
Cause of high medium consumption in Qinan Coal Preparation Plant was analyzed in this paper. The medium consumption was decreasing and economic benefit was gained through technical transformation, renewal of equipment, enhancing system administration and personal training.
2005 01 [Abstract][OnlineView][Download 71k]
2005 01 [Abstract][OnlineView][Download 107k] - CHEN Ming-bo, WANG Bin, ZHAO Qi, QU Si-jian(Beijing Research Institute of Coal Chemistry, CCRI. Beijing 100013, China)
The coking treatment fundamental rules of coal liquefaction residue were gained through 40 ㎏ coking test facilities. Coal liquefaction residue coke quality and its form were investigated and the feasibility of coal liquefaction residue coking was analyzed. It provides a technology basis for large-scale industrial treatment the residue by using coking process.
2005 01 [Abstract][OnlineView][Download 219k] - GAO Mei-shan, ZHANG Jian-min, LUO Ming(College of Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)
Progresses of coal desulfurization with pyrolysis in reductive atmosphere were reviewed. The review emphasized on desulfurization mechanism and effect under hydrogen and coke-oven-gas atmosphere. In addition, methane has promoting effect on coal desulfurization. Comparing the advantage and disadvantage of pyrolysis desulfurization in the reductive atmosphere, the methane has an important research value and practical application foreground for promotion the coal pyrolysis desulfurization.
2005 01 [Abstract][OnlineView][Download 126k] - LI Yong, XIAO Jun(Education ministry Key Laboratory on Clean Coal Power Generation and Combustion Technology, Southeast University, Nanjing 210096, China)
The forms and the identification methods of alkali metal in coal and their occurrence and migration mechanism during coal-fired process were summarized. The effect factors of alkali metal migration and their reactions in the furnace were analyzed. Meanwhile, some new online measurements for alkali metal vapor were introduced. The direction was pointed for the research in the future. The valuable information provided may be useful for the research and application of the clean coal combustion.
2005 01 [Abstract][OnlineView][Download 322k] - PAN Jin-rong, ZHANG Zhong-xiao, XU Jian-HAO(Power Engineering College, Shanghai University of Technology. Shanghai 200093, China)
Combustion functions of stoker boilers with the additional Ex-arch were analyzed and the effect of some of the function parameters change on the flue gas temperature of furnace outlet were investigated such as effective thickness of radiation layer in furnace, average effective factor and degree of blackness in furnace. It is confirmed that, the operation level of stoker boilers can be improved such as enhancing the combustion intensity, boiler thermal efficiency and flue gas temperature of furnace outlet.
2005 01 [Abstract][OnlineView][Download 118k] - WANG Jun~(1), GAO Jun~(2)(1. The Thermal Engineering Department of Shandong Institute of Architecture and Engineering Jinan, 250014 China; 2. Shandong Qingdao Hengyuan Thermoelectricity Corporation. Qingdao 266510, China)
With the development of economic and peoples living standard enhancing, the scale and numbers of the thermoelectricity station are increased quickly. The Circulating Fluidized Bed Boiler is widely used in thermoelectricity station due to its advantages. This paper analyzes the operation questions appearing at 75t/h Circulating Fluidized Bed Boiler in Qingdao Hengyuan Thermoelectricity Corporation and introduces technical transformation measures.
2005 01 [Abstract][OnlineView][Download 68k] - WANG Ling, LI Shu-rong, ZHANG Wen-hui(Beijing Research Institute of Coal Chemistry, CCRI. Beijing 100013, China)
The tannin value and phenol value test methods of grain shape activated carbon were introduced that is provided by American Water Works Association standard. Also, the chlorine content determination method of Japan JIS K1474 was introduced in this paper.
2005 01 [Abstract][OnlineView][Download 65k] - SUN Li-mei, SHAN Zhong-jian(Beijing School, China University of Mining and Technology, Beijing 100083, China)
Research progress of coal desulfurization in domestic and abroad was described. Host combustion desulfurization is including the physical, chemical and biological methods. The physical method was introduced as main part in this paper. The recently research situations, existence problems and development direction of chemical and biological methods were discussed. Some proposal is presented in order to realized as early as possible utilizing of cleaner coal.
2005 01 [Abstract][OnlineView][Download 91k] - HUANG Jun~1, XU Hong-feng~2(1.Resources and Environment Engineering Department, Wuhan University of Technology. Wuhan 430070, China; 2. Environment Inspection Center Station, Mudanjiang Environment Protection Department. Mudanjiang 157000, China)
The single linear regression and double linear regression of the gushing gas amount, depth and thickness of coal seam were made by using the number value analysis method based on the absolute gas gushing amount measure during the mining time and ten holes initial datum in the exploration. A fitting function with higher precision was obtained that can be used as precision of gas gushing quantity for safety management in coalmine.
2005 01 [Abstract][OnlineView][Download 80k] - GUO Xing-hong(Environment Protection Department, Shanxi Jincheng Anthracite Industry Group Duty Co. Ltd. Jincheng 048006,China)
The SO_(2) monitoring relative accuracy cause in mining area was analyzed. This relative accuracy eliminated and decrement method was discussed.
2005 01 [Abstract][OnlineView][Download 68k] - LI Jian-suo~(1), LIU Jian-qiu~(1), ZHANG Xian-lin~(1), MA Bao-zhen~(1), REN Ai-ling~(2)(1.Hebei industrial Vocational technological Institute Shijiazhuang 050091, China; 2. Hebei Science and Technology University Shijiazhuang 050021, China)
The culturing and training process of desulfurization sulfur bacteria, operation condition and main affected factors were discussed through the removal H_(2)S in the biological filtration tower research. Result is shown that, it is an effective method for H2S removal. H_(2)S removal efficiency may reached 98% at the optimal operation condition such as loading rate of 2400g-H_(2)S/m~(3)d, temperature of 20~30℃, space velocity ( SV )=100~300h~(-1), liquid / gas (L/G)Ratio=1( ∶)135~1( ∶)300, pH=2~3.5, and inlet H_2S concentration( C _(in)) at 600mg/m~(3). In the reality operation, the emission standard can be reached at the inlet H_(2)Sconcentration of 1000 mg/m~(3), and the loading rate of 3600 g-H_(2)S/m~(3)d conditions.
2005 01 [Abstract][OnlineView][Download 125k] - WANG Shu-ying(Shangqiu Teachers College, Shangqiu 476000, China)
Coal is a main energy in China. Coal combustion especially the high sulfur coal will produce much more pollutants such as dust, SO_(2), NO_( x ), CO and so on. and emitted into air. Therefore its emission will affect on the environment, to form acid rain and other harms. It should be paid more attention by whole society and positive precaution.
2005 01 [Abstract][OnlineView][Download 99k] - XU Tie-wei(Coal Preparation Plant, Fenxi Coal Industry Group,Jiexiu 032000, China)
The quality system establishment, product quality control method, quality inspection and supervision, service after sale and concerned concepts were introduced in this paper.
2005 01 [Abstract][OnlineView][Download 67k] - WANG Feng, ZHAN Xiao-si, CHEN Yun(Department of Computer, Fuyang Teachers College. Fuyang 236032, China)
The effect of optics factors on digital image processing was discussed and analyzed through coal granule concentration parameters analysis in the formed picture when coal sample under illuminant irradiation.
2005 01 [Abstract][OnlineView][Download 61k]
2005 01 [Abstract][OnlineView][Download 20k]