Vapour Phase Hydrogenation of Levulinic Acid Over Carbon Coated HZSM-5 Supported Ni Catalysts

Authors

  • Mohan Varkolu Indian Institute of Technology Hyderabad
  • Burri David Raju Inorganic & Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad, India
  • Kamaraju Seetha Rama Rao Inorganic & Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad, India

Abstract

Carbon coated HZSM-5 supported Ni catalyst shown to be a promising catalyst in the hydrogenation of levulinic acid to yield γ- valerolactone. Physicochemical characterizations were undertaken using N2 physisorption, H2-chemisorption, X-ray diffraction (XRD), CHNS and temperature programmed reduction (TPR) techniques. The CHNS studies reveal about 3 wt% carbon was coated by the passage of cyclohexene at 600 °C for 3 h. The carbon coated HZSM-5 supported Ni catalyst shown lower catalytic performance compared to HZSM-5 supported Ni catalyst. Furthermore, the enhanced stability of the carbon coated HZSM-5 supported Ni catalyst during the time on stream mainly due to decline of Bronsted acidity by the carbon coating of HZSM-5.

 

Keywords: Carbon coated HZSM-5, Ni catalyst, hydrogenation, levulinic acid,                        γ- valerolactone

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Published

2019-04-16

Issue

Vol. 2 No. 2 (2015)

Section

Articles

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