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Research on Relationship Specific Surface Area to Adsorption Feature of Different Rank Coals

Author: LiXu
Tutor: WuJiXiang；WangKuiJun
School: CCRI
Course: Safety Technology and Engineering
Keywords: coal specific area pore structure adsorption
CLC: TQ531
Type: Master's thesis
Year: 2007
Downloads: 535
Quote: 4
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Abstract


At the temperature of liquid nitrogen the N2 adsorption process and adsorptive volume of coal samples are measured under the gas saturated vapor pressure. Using BET and BJH theoretical models area of coal are calculated Choosing different rank coals （anthracite、meager coal、lean coal、coking coal、rich coal、gas coal and lignite ） as well as isothermal adsorption CH4 experiments of coal in this paper. based on results of the research, discussion on the relation of coal specific surface area and pore types of different ranks of coal, we see the order is the order of: gas coal > anthracite> rich coal > lean coal>lignite>meager coal>coking coal its effect of adsorption capacity, conclusion that the larger of the specific surface and the stronger of the adsorption capacity.

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CLC: > Industrial Technology > Chemical Industry > Processing and utilization of coal chemical and coal > The nature and determination of coal
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