- HU Jiang chao(Zhejiang Coal General Company, Hongzhou 310005, China)
The optimum coal blending technology, additive technology for clean coal combustion, construction Hongzhou coal plant for clean coal production and additive products for clean combustion were developed in early 90s' in Zhejiang province. These technologies were spread into whole country such as to burn clean coal at industrial boiler and kiln for decreasing pollutant emission. The industrial application prospect of the coal conversion and upgrading, gasification, liquefaction at 21 century in Zhejiang province was discussed in this paper. Specially the establishment and development of clean coal technologies in industrial chain general plan were also discussed.
1999 04 [Abstract][OnlineView][Download 27k] - YAN Yan,CUI Shu quan,LI He qun(Quality Technical Control Center, Pingdingshan Coal Ltd. Co. Pingdingshan 467000, China)
In view of the market situation, the necessity of steam coal preparation and processing in Pingdingshan Coal Ltd Co was discussed. It can be increase the economical and social benefits through coal preparation and processing and optimum product structure.
1999 04 [Abstract][OnlineView][Download 33k] - ZHU Chao hui(Zhongyang Property Management LTD. CO. Beijing 100037, China)
To develop the briquette industrial production is affected by the many factors such as quality standard of industrial briquette, determination index of coal quality, importance action of mineral mater, design principle of industrial briquette, property of binder and practice analysis. All of these were discussed in this paper.
1999 04 [Abstract][OnlineView][Download 39k] - GAO Jun, HAN Jin de,XU Gui qin(Beijing Research Institute of Coal Chemistry, CCRI, Beijing 100013, China)
The air pollution sources were come from coal burning in China due to the coal as main energy resource. Best way for decreasing air pollution is that to develop clean coal technology. Briquettee technology is one of the clean coal technologies. A great technical breakthrough had been gained in Beijing Research Institute of Coal Chemistry. A kind of high strength, water proof and without drying beiquette was produced. The industrial gasification test was completed using 100 t briquettes. The champion was gained at contrast test that is presided by the former Ministry of Coal Industry. To decreasing the cost of binder and to strengthen spreading application of briquette are the development tendency in future.
1999 04 [Abstract][OnlineView][Download 26k] - CAO Min 1,REN Xiang jun 2,ZHANG Ai yun 1(1 Heilongjiang Mining Institute,Jixi 158105,China) (2 Hefei Coal Institute, Hefei 230001,China)
In view of the hardness and difficult briquetting of Jincheng anthracite, a high strength and waterproof briquette was produced using Jingcheng fine anthracite through to develop a new type binder and process.
1999 04 [Abstract][OnlineView][Download 27k] - PENG Wan wang, WANG Nai ji ,JI Xu guo ,YING You ju ,BIAN Wen(Beijing Research Institute of Coal Chemistry, CCRI, Beijing 100013, China)
A new technical process concept is introduced by using dry flue gas desulfurization and recovery the sulfur. Its feature as follows; the dry desulfurization process can be conducted continuously by using the coal based fine sorbent that it can be regeneration; desulfurization process is completed at the down spurt type entrained bed reactor; indirect heat exchanger was adopted; desulfurization sorbent regeneration and to produce a tail gas which The sulfur dioxide content is higher; the sulfur dioxide can be liquefied and separated with other gases through compressing and cooling down the regeneration tail gas and to produced liquid SO 2 as by product. The unit experiment results as mentioned above are also introduced.
1999 04 [Abstract][OnlineView][Download 50k] - XU Xiu feng 1, SUO Zhang huai 1, SHAO Guo qiang 1, AN Li dun 1, WANG Wei min 2, NIU Ming zheng 2(1 Institute of Applied Catalysis, Yantai University, Yantai 264005, China) (2 Yantai Power Plant, Yantai 264000, China)
The CuY molecular sieve series catalyst was prepared by using the ion exchange and equivalent volume soak method. Its activity for N 2O decomposition was investigated. The result shown that the CuY catalytic activity is increasing as the Cu 2+ exchange extent increasing. The effect of calcination temperature on catalytic activity is obvious. Catalytic activity of CuY prepared by ion exchange method is high than the soak method.
1999 04 [Abstract][OnlineView][Download 43k] - LI Wen zhong(Yongrong Coal Administration, Chongqing 402465, China)
The slime fluid transportation and deferent weight fluidized bed combustion features are introduced in this paper. Slime and refuse mixture combustion for power generation is developed successfully in China through laboratory test, bench scale test, simulation test and industrial test. The power plant operated at steady condition.
1999 04 [Abstract][OnlineView][Download 41k] - BU Xue peng, DENG YI ying , CHEN Jia ren , DUAN Guo jun , DU Wan dou(Beijing Research Institute of Coal Chemistry, CCRI, Beijing 100013, China)
The thermal cracking property of high rank anthracite was studied. The test results shown that both the coal rank and particle size have some effect on thermal cracking ability of anthracite and the thermal stability values TS 6-13 vary from 10% to 90%. The preheat treatment of raw coals can reduce their thermal cracking and improve the thermal stability. Under the test range, the thermal cracking reducing even disappears by increasing preheat time and preheat temperature, and some coals' thermal stability value is great than 95% after treatment.
1999 04 [Abstract][OnlineView][Download 42k] - LIU Ying lin, CAO Chang wu , YANG Ai dong(Shandong Power Institute, Jinan 250021, China)
The effect of sulfur content in coal on the power generation is discussed. The air pollution by sulfur combustion product; low temperature heating surface eroded by SO 3; relationship between the sulfur content in coal and slagging in boiler; spontaneous combustion tendency increased as sulfur content rising in coal; and other influence of sulfur content in coal for the power production is also discussed. Decreasing sulfur content of coal through to strengthen clean coal technology research and development that is the basic route for decreasing the influence. At the same time, to strengthen management and adopted measures should also be conducted in power plant for decreasing the harm of sulfur.
1999 04 [Abstract][OnlineView][Download 28k] - CHEN Huai zhen, CHEN Wen min(Beijing Research Institute of Coal Chemistry, CCRI, Beijing 100013, China)
For calculation the populations mean of blending coal quality, it should be under the same base. The correct formula of proximate analysis, heating value, fusibility of coal ash and ash composition was provided for coal blending calculation. The theory calculation value of blending coal quality index may tally with the practice measure value.
1999 04 [Abstract][OnlineView][Download 38k] - BAI Xiang fei, WANG Zhao wen, LIU Kai ming , YANG Ji yin(Coking Plant, Taiyuan Coal Gasification Ltd Co. (Group), Taiyuan 030024, China)
The petrographic analysis, coal size and coal quality analysis of different raw coal and coking coal were made. A comprehensive analysis result shown that the coal size distribution is similar the Gates-Gandin-Shuzman and Rossin-Rammer distribution. The change of maceral composition in different size grade coal has a regularity. It will be effect the cohesiveness, sulfur and ash yield of coking coal. This result can be use to improve the coal preparation process and rising coke quality.
1999 04 [Abstract][OnlineView][Download 52k] - SHI Yu ying 1 , LI Yi wan 2(1 Nation Coal Quality Supervise and Test Center, Beijing 100013, China) (2 Luoyang Gold Administration, Luoyang 471003, China)
The accord ability between the international coal unified test result and average value of unified test was analyzed.
1999 04 [Abstract][OnlineView][Download 84k]
1999 04 [Abstract][OnlineView][Download 11k]