Catalysis Letters, Vol.144, No.1, 44-49, 2014
P-ZSM-5 Pretreated by High-Temperature Calcination as Durable Catalysts for Steam Cracking of n-Hexane
The n-hexane steam cracking using the phosphorus-modified ZSM-5 catalysts (P-ZSM-5) with several phosphorus loadings was investigated. The P-ZSM-5 catalyst with 1 wt% phosphorus loading (1P-ZSM-5) showed the most stable activity. The pretreatment of high-temperature calcination enhanced the durability of 1P-ZSM-5. The 1P-ZSM-5 catalyst calcined at 1,073 K remained 80 % of initial activity for 30 h.
Keywords:P-ZSM-5;Calcination temperature;n-Hexane steam cracking;Propylene;Ethylene;Phosphorus loading