Abstract

The results of the development of a hybrid catalyst for the one-pot synthesis of liquid hydrocarbons by the Fischer–Tropsch method are presented. The catalyst was synthesized by the mechanical mixing and molding of Co–Al₂O₃/SiO₂, zeolite HZSM-5, and boehmite powders. The zeolite was promoted with palladium by ion exchange (1.0 wt %). The catalysts were characterized by X-ray diffraction analysis, BET, scanning and transmission electron spectroscopy, and temperature-programmed desorption of ammonia and hydrogen and tested at a temperature of 240°C, a pressure of 2.0 MPa, and a GHSV of 1000 h^–1. The preparation method proposed makes it possible to obtain a hybrid catalyst with a stable structure and an average cobalt particle size of 8 nm; this catalyst exhibited high productivity and selectivity for the formation of liquid hydrocarbons from CO and H₂.

中文翻译：

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费-托法选择性合成燃料范围碳氢化合物的杂化催化剂

摘要

介绍了通过费-托法一锅法合成液态烃的杂化催化剂的开发结果。通过机械混合和模制Co–Al ₂ O ₃ / SiO ₂，HZSM-5沸石和勃姆石粉末来合成催化剂。通过离子交换（1.0重量％）用钯促进沸石。通过X射线衍射分析，BET，扫描和透射电子光谱以及氨和氢气的程序升温脱附对催化剂进行了表征，并在240°C的温度，2.0 MPa的压力和1000 h的GHSV下进行了测试^–1。提出的制备方法可以得到结构稳定，钴平均粒径为8nm的杂化催化剂。该催化剂对于由CO和H ₂形成液态烃显示出很高的生产率和选择性。