Development of high-performance adsorbent via oxidation modification of activated carbon for adsorptive denitrogenation of liquid hydrocarbon streams

Na Li, Xiaoliang Ma, Qingfang Zha, Chunshan Song

Research output: Contribution to journalConference article

Abstract

In order to increase the adsorption capacity of activated carbon (AC) for adsorptive denitrogenationen (ADN) of liquid hydrocarbon streams, oxidative modification of a commercial AC was conducted using (NH4)2S2O8 as an oxidant. The effects of (NH4)2S2O8 concentration, oxidation temperature, and oxidation time on the concentration of the oxygen-containing functional groups on the AC were examined. The oxygen-containing functional groups in the modified AC samples were identified and quantified by the temperature programmed desorption method (TPD-MS). The ADN performance of the modified adsorbent was evaluated. It was found that the oxidative modification increased the concentration of the oxygen-containing functional groups on AC from initial 6.2 mmol-O/g-A to 25.9 mmol-O/g-A. It resulted in a significant increase of the ADN capacity by a factor of 2.8, indicating that the oxidative modification with (NH4)2S2O8 as an oxidant is very effective in increasing the ADN capacity of AC.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
Publication statusPublished - Dec 1 2010
Event240th ACS National Meeting and Exposition - Boston, MA, United States
Duration: Aug 22 2010Aug 26 2010

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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