Jianwen Li and Hongfang Ma and Haitao Zhang and Qiwen Sun and Weiyong Ying, Catalytic Cracking of Butene to Propylene over Modified HZSM-5 Zeolites. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2014, vol. 91(7). 654 - 657 [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/9998777.