Development of carbon-based adsorbent for acetylene separation using response surface method

Minjung Choi, Kye Sang Yoo

Research output: Contribution to journalArticlepeer-review

Abstract

Carbon nanotubes, nanofibers and powders were used for acetylene adsorption experiments. A total of 15 different experiments were designed by 3-level of Box-Behnken Design (BBD) with 3 factors including the Pd concentration of 0 to 5%, adsorption temperature of 30 to 80 ℃ and C 2 H 2 /CO 2 of 3 to 10. Based on those data, a second order polynomial regression analysis was used to derive the adsorption amount prediction equation according to operating conditions. The adsorption temperature showed the greatest influence index while the C 2 H 2 /CO 2 ratio showed the smallest according to the F-value measurement of the ANOVA analysis. However, there was little interaction between major factors. In the adsorption optimization analysis, a 22.0 mmol/g was adsorbed under the conditions of Pd concentration of 3.0%, adsorption temperature of 47 ℃ and C 2 H 2 /CO 2 of 10 with 95.9% accuracy.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalApplied Chemistry for Engineering
Volume30
Issue number1
DOIs
StatePublished - Feb 2019

Keywords

  • Acetylene adsorption
  • Pd/C Adsorbent
  • Response surface method

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