Abstract
The highly selective conversion of glycerol to propylene was performed by coupling the hydrogenolysis of glycerol to propanol and the catalytic cracking of propanol to propylene by using metal and acid catalysts together. The coupling of MoO3-modified Ni2P/Al2O3 and ZSM-5 catalysts efficiently resulted a high selectivity of propylene (88%) for pure glycerol conversion at 523K. Such coupling was feasible for the conversion of glycerol/methanol (mainly the refined product of crude glycerol) to propylene by increasing cracking temperature to 723K. The new system is potential for large-scale production in which crude glycerol and hydrogen are available as feedstock.
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