Continuous Toluene Hydrogenation System Using Compressed Carbon Dioxide

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yoshio Masuda¹  Norihito Hiyoshi¹  Osamu Sato¹  Chandrashekhar V. Rode¹  Masayuki Shirai¹  Mitsumasa Osada¹ 

[1] Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST)

关键词: Carbon Dioxide Solvent;    Continuous Hydrogenation;    Toluene;    Methylcyclohexane;    Process Simulation;   

DOI  :  10.1252/jcej.09we054

来源: Maruzen Company Ltd

【 摘 要 】

References(17)The effect of the addition of compressed carbon dioxide in continuous hydrogenation of toluene has been evaluated with process simulation software and tested with a fixed-bed reactor. The simulation results show that the temperature rise is significantly suppressed in the presence of compressed carbon dioxide and that the equilibrium conversion of toluene (toluene/hydrogen = 1/3) reaches 99.9%, whereas around 60% in the absence of carbon dioxide. Experimental results show that the continuous hydrogenation of toluene (toluene/hydrogen/carbon dioxide = 1/3.1/31, inlet temperature: 20 °C, outlet temperature: <70 °C, and total pressure: 11 MPa) over activated carbon-supported rhodium catalysts proceeds without deactivation. The conversion of toluene reaches 99% and methylcyclohexane is the only product detected.

【 授权许可】

Unknown