新しいタイプの含窒素活性炭による硫化水素の吸着除去

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タイトル別名
  • Removal by adsorption of hydrogen sulfide by a new type of activated carbon containing nitrogen.
  • 新しいタイプの含窒素活性炭による硫化水素の吸着除去〔英文〕
  • アタラシイ タイプ ノ ガン チッソ カッセイタン ニ ヨル リュウカ スイソ

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A new type of activated carbon containing nitrogen (No. 10) with a higher capacity for hydrogen sulfide adsorption than earlier types was prepared by impregnating raw activated carbon (No. 5) with a 20% MMU solution and then heating it at 850°C. Isotherms of hydrogen sulfide on AC-CN were obtained using a gravimetric method and at 30°C. The structure of AC-CN micropores and supermicropores has been discussed based on applying the binomial equation (3) to adsorption isotherms.<br>Treatment with MMU solutions caused the AC-CN micropore and supermicropore radii to contract and expand, respectively. Increases of approximately 15.5% in micropore volume and decreases of approximately 22.8% in supermicropore volume for AC-CN (No. 10) probably do not result from the expansion of micropore radii but from the numerical increase of micropores due to simultaneous decreases in supermicropore volume.

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