- Chen Peng(Beijing Research Institute of Coal Chemistry,China Coal Research Institute)
This paper elucidates the importance of basic research with regards to high efficiency and clean utilization of coal, and also briefly reviews the situation in above study fields at domestic and abroad. The six sections of basic research of coal science , such as molecular structure and pore structure of coal, harmful elements existed in coal and thier removal, and fundamental study concerning coal conversion and catalytic reaction, as well as monomer of polymer and carbon materials made from coal are put forward. After that , a new concept of coal will be established, that is , coal is a very important resource of carbon and hydrogen in the world.
1998 01 [Abstract][OnlineView][Download 24k] - Chen Jiaren(Beijing Research Institute of Coal Chemistry,China Coal Research Institute)
Fluidized Bed Coal Gasification,is one of the oldest commercialized coal gasification technology.But for original processes,main disadvantages were low carbon conversion rate,etc..In recent years,there are many new developments in the world,such as HTW,Lurgi CFBG in Germany ;U-gas,KRW in US and so on.In the future.the developments of FBCG will direct to Hi-pressure,Hi-efficiency.
1998 01 [Abstract][OnlineView][Download 31k] - Xu Zhengang(Beijing Research Institute of Coal Chemistry, China Coal Research Institute)
Coal takes the dominant position in the primary energy mix in China, and coal industry plays a very important role in the national economy. But the excessive development and unclean and inefficient utilization of coal resources have brought not only huge waste of coal, but also serious deterioration of ecological environment. The healthy development of coal industry is facing the severe challenge. Therefore the sustainable development of coal industry is imperative.
1998 01 [Abstract][OnlineView][Download 45k] - Gu Qiang Yang Weihua Chen Shi Xu Yuansen Sun Huailin (China University of Mining and Technology) (Technology Test Center, Xuzhou Power Plant)
The property and application of water membrane dust collector are introduced in this paper. Main factor for increasing the efficiency of this kind dust collector is discussed through experiment and measurement of dust collector at a factory. The possible route for to enhance the efficiency of venturi water membrane dust collector is advanced. And research on improvement the efficiency of venturi water membrane dust collector possess practical significance.
1998 01 [Abstract][OnlineView][Download 59k] - Cai Zhang (China University of Mining and Technology)
The principle of selective flocculation and the research of selective flocculation of coal separation are introduced in this paper. The results show that this method can be used not only for ultrafine coal slime separation but also for super-clean coal production and desulfurization. After ultrafine coal selective flocculation the ash content of clean coal may reach 12%～13% and the recovery of combustible product is over 90%. The ash content of super-cleaned coal is less than 3%,the yield and combustible recovery are all 90% or so ,the highest one is 95.88% and 94% respectively .The pyrite sulfur content can be reduced from 5.69% to 0.5%,at the same time tog ash content can be reduced ,from 12.3% to less than 3%.
1998 01 [Abstract][OnlineView][Download 33k] - Yang Kang Liu Jing Yang Dahai Lu Jie(Coal Preparation Institute, Tangshan Branch Research Institute, CCRI)
The mechanism for improvement the selection effect of complex vibration Jig is discussed. The research status of complex vibration Jig in abroad and the SKTFZ complex vibration Jig is developed successfully including the technical scheme, structure feature and commercial test result are introduced in this paper.
1998 01 [Abstract][OnlineView][Download 34k] - Gao Hanjie(Jinyang Coal Preparation Plant)
To reduce agent consumption measure is put forward depend on the production practice of Jinyang Coal Preparation Plant in this paper. the improvement production process scheme through to adjust the slot of arc screen and removal agent screen and to reduce the load of magnetic separation machine for reducing agent consumption and enhancing the economic benefit are discussed.
1998 01 [Abstract][OnlineView][Download 23k] - Yao Kunliang(Coal Preparation Institute, Tangshan Branch Research Institute, CCRI)
An equivalent particle rotary guide buoy model of bed layer inspecting and measuring in Jig is established. The rotary guide can increase the freedom of buoy and the buoy diameter can be close to the selection materials and the diameter, density and swing radius between of them are same through inspecting and measuring. Separation density of Jig can be achieved from layer level of swing buoy at different height of rotary shaft and level thrust is received by buoy. The looseness can be substituted by level thrust as a basis of layering easy or not.
1998 01 [Abstract][OnlineView][Download 22k] - Zhang Daijia\ Luo Changqi\ Guo Shucai Chen Yuan\ Zhou Yusheng\ RongHai (Institute of Coal Chemical Engineering DUT) (Nanning City Building Administration)
On a continuous experimental apparatus with capacity of 10 kg/h in the laboratory, rapid pyrolysis of Nanning lignite was carried out The experimental results showed that using low rank Nanning lignite, a medium heating value gas which is accord with the town gas standard, light tar and high reactivity char can be obtained. This paper has analysed and discussed various questions including the characteristics of this technology, the pyrolysis of the coal, and the distribution, composition, properties, application of the products
1998 01 [Abstract][OnlineView][Download 38k] - Pang Jin Zhang Wenhui Liu Xuezhi(Beijing Research Institute of Coal Chemistry, China Coal Research Institute)
The development of methanation process using water gas of two-stage gasifier is introduced in this paper. The capacity of methanation pilot plant is 12 000 m3/day water gas and 1 000 hr continued operation had been achieved.
1998 01 [Abstract][OnlineView][Download 44k] - Zhao Lihe Wang Shijun Ma Dajian Hao Fengyin(University of Science and Technology Beijing) (National CWS Engineering and Technology Center)
This paper introduces the coal water slurry application engineering of coal water slurry in sit making and combustion in Shaoxing Steel-rolling Plant .The application to the steel -rolling reheating furnace shows that good results are achieved in energy -saving ,environmental protection ,economic and social benefits and so on.
1998 01 [Abstract][OnlineView][Download 28k]
1998 01 [Abstract][OnlineView][Download 15k] - Li Rui(Beijing Research Institute of Coal Chemistry, China Coal Research Institute)
The sulfur distribution in Chinese coal are investigated based on the China Coal Resources Databank. Sulfur content in low rank coal is lower than the high rank coal and sulfur content in coal has a world of difference at different areas in China. The lowest sulfur content coal resource is located at the north-east of China, especially in the Heilongjiang Province.The highest sulfur coal is located at the Central-south of China. The sulfur form is mainly pyretic sulfur in the most of high sulfur coal, except that several small mine areas which the form is mainly organic sulfur. It is shown that, most of high sulfur coal can be removed by coal preparation.
1998 01 [Abstract][OnlineView][Download 39k] - Zhang Zhikang Lin Qian Yi Hongchang(Tsinghua University Department of Engineering physics)
The paper discribes the functions of model ZZ-89A γ-ray coal ash monitor,demonstrates that this equipment accord with the needs of large scale coal processing and utilizing enterprises such as coal preparation factorles,coal blending fields for producing guide,management and assessment.
1998 01 [Abstract][OnlineView][Download 23k] - Wang Cunyan(Beijing Research Institute of Coal Chemistry, China Coal Research Institute)
Up to date processes and catalysts in the world for upgrading heavy coal liquids have been reviewed. In these processes, IGOR in Germany is the best in the technology level. In general, those commercial catalysts, which are being used in the petroleum-hydrocracking processes, are also suitable for upgrading heavy coal liquid. But because of the differences in compositions and properties between petroleum and heavy coal liquids, it is necessary to improve them to some extent sometimes.
1998 01 [Abstract][OnlineView][Download 21k]
1998 01 [Abstract][OnlineView][Download 36k] -
1998 01 [Abstract][OnlineView][Download 21k] 下载本期数据