948 resultados para packing
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At head of title: 1921- : Department of Commerce ... Bureau of the Census ...
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Mode of access: Internet.
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"August 1943."
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"AES research and development report"--Cover.
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Issued also as House documents.
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Mode of access: Internet.
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Mode of access: Internet.
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Reproduced from type-written copy.
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Printed for the use of the Committee on Agriculture and Forestry.
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Mode of access: Internet.
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Mode of access: Internet.
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"Lithoprinted."
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Adsorption of different aromatic compounds (two of them are electrolytes) onto an untreated activated carbon (F100) is investigated. The experimental isotherms are fitted into Langmuir homogenous and heterogeneous Model. Theoretical maximum adsorption capacities that are based on the BET surface area of the adsorbent cannot be close to the real value. The affinity and the heterogeneity of the adsorption system observed to be related to the pK(a) of the solutes. The maximum adsorption capacity (Q(max)) of activated carbon for each solute dependent on the molecular area as well as the type of functional group attached on the aromatic compound and also pH of solution. The arrangement of the molecules on the carbon surface is not face down. Furthermore, it is illustrated that the packing arrangement is most likely edge to face (sorbate-sorbent) with various tilt angles. For characterization of the carbon, the N-2 and CO2 adsorption were used. X-ray Photoelectron Spectroscopy (XPS) measurement was used to surface elemental analysis of activated carbon.