Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Adsorption of Amine and Sulfur Compounds by Cobalt Phthalocyanine Derivatives

코발트 프탈로시아닌 유도체에 의한 아민 및 황 화합물의 흡착

  • Lee, Jeong Se (School of Chemical Engineering and Bioengineering, Ulsan University) ;
  • Lee, Hak Sung (School of Chemical Engineering and Bioengineering, Ulsan University)
  • 이정세 (울산대학교 생명화학공학부) ;
  • 이학성 (울산대학교 생명화학공학부)
  • Received : 2007.07.18
  • Accepted : 2007.09.27
  • Published : 2007.12.10

Abstract

The adsorption capability of cobalt phthalocyanine derivatives was investigated by means of X-ray diffractometor (XRD), FT-IR spectroscopy, scanning electron microscopy (SEM), and temperature programmed desorption (TPD). According to TPD results for ammonia, cobalt phthalocyanine derivatives showed two desorption peaks at low temperature ($100{\sim}150^{\circ}C$) and high temperature ($350{\sim}400^{\circ}C$) indicating that there were two kinds of acidities. Tetracarboxylic cobalt phthalocyanine (Co-TCPC) has a stronger desorption peak (chemical adsorption) at high temperature and a weaker desorption peak (physical adsorption) at low temperature than cobalt phthalocyanine (Co-PC). The specific surface areas of Co-TCPC and Co-PC were 37.5 and $18.4m^2/g$, respectively. The pore volumes of Co-TCPC and Co-PC were 0.17 and $0.10cm^3/g$, respectively. The adsorption capability of triethyl amine calculated by breakthrough curve at 120 ppm of equilibrium concentration was 24.3 mmol/g for Co-TCPC and 0.8 mmol/g for Co-PC. The removal efficiencies of dimethyl sulfide of Co-TCPC and Co-PC in batch experiment of 225 ppm of initial concentration were 92 and 18%, respectively. The removal efficiencies of trimethyl amine of Co-TCPC and Co-PC in batch experiment of 118 ppm of initial concentration were 100 and 17%, respectively.

Keywords

cobalt phthalocyanine;amine;TPD;sulfur

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Acknowledgement

Supported by : 울산지역환경기술개발센터

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