摘要
综述了纳米ZSM-5在石脑油催化裂解中的应用.比较了纳米ZSM-5和毫米级ZSM-5对产物选择性、反应转化率和催化剂寿命的影响.纳米ZSM-5的应用不仅延长了催化剂寿命,而且表现出更稳定的轻质烯烃选择性.讨论了反应条件,如温度和进料对纳米ZSM-5催化性能的影响,发现高温和线式烷烃作为进料时可提高轻质烯烃的选择性和反应转化率.
This review discussed the use of nano ZSM‐5 in naphtha catalytic cracking. The impact of nano ZSM‐5 on product selectivity, reaction conversion and catalyst lifetime were compared with micro‐sized ZSM‐5. The application of nano ZSM‐5 not only increased the catalyst lifetime, but also gave more stability for light olefins selectivity. The effects of the reaction parameters of temperature and feedstock on the performance of nano ZSM‐5 were investigated, and showed that high temperature and linear alkanes as feedstock improved light olefin selectivity and conversion.
