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

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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
StatePublished - 2010

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Hydrocarbons
Activated carbon
Adsorbents
Oxidation
Liquids
Functional groups
Temperature programmed desorption
Oxygen
Oxidants
Adsorption
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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title = "Development of high-performance adsorbent via oxidation modification of activated carbon for adsorptive denitrogenation of liquid hydrocarbon streams",
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.",
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year = "2010",
language = "English (US)",
journal = "ACS National Meeting Book of Abstracts",
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TY - JOUR

T1 - Development of high-performance adsorbent via oxidation modification of activated carbon for adsorptive denitrogenation of liquid hydrocarbon streams

AU - Li, Na

AU - Ma, Xiaoliang

AU - Zha, Qingfang

AU - Song, Chunshan

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

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