Mild ring-opening coupling of liquid-phase cyclohexane to diesel components using sulfated metal oxides

作者：Mao, Wei; Ma, Hongzhu^*; Wang, Bo

来源：Journal of Hazardous Materials, 2010, 176(1-3): 361-366.

DOI：10.1016/j.jhazmat.2009.11.036

• Cyclohexane
• Sulfated metal oxides
• Liquid-phase
• Diesel fuel

We have investigated a mild simple synthesis method for ring-opening coupling of liquid-phase cyclohexane to diesel components using various sulfated metal oxides [SO42-/Fe2O3 (SF), SO42-/TiO2 (ST) and SO42-/ZrO2 (SZ)] under low temperature (333 K) and atmospheric pressure. Neither solvent nor promoters are needed in the reaction system so as to be a clean approach. Operating under these reaction conditions, a maximum activity of 6% was obtained with SF as catalyst, and a significantly high selectivity of 74.5% for nicer diesel components (n-C-14-C-18) was obtained simultaneously. Whereas, ST and SZ displayed low activity for cyclohexane reaction. By utilization of the temperature-programmed desorption of ammonia (NH3-TPD) measurement and the N-2 adsorption method, the results suggested that a satisfied acid strength distribution and high density of acid sites appeared in SF catalyst in comparison which may play an important role in the reaction.

• 出版日期2010-4-15
• 单位陕西师范大学