Abstract

The effect of gas recirculation on the preparation of C₃₅₊ long-chain hydrocarbons on a supported Co-Al₂O₃/SiO₂ catalyst at 6.0 MPa, 225°C, and the gas hourly space velocity of 1000 h^–1 is studied. It is shown that the circulation regime allows the catalyst bed to be isothermal and improves the selectivity and productivity of C₃₅₊ hydrocarbons. It is found that the rate of catalyst deactivation slows by a factor of eight when the circulation ratio is raised from 2.2 to 6, while the amount of unsaturated hydrocarbons in the products of synthesis doubles.

中文翻译：

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高压下气体循环对CO和H 2合成C 35+长链烃的影响

摘要

气再循环对C的制备的影响₃₅₊长链烃上的支持Co-Al系₂ ö ₃ /二氧化硅₂催化剂在6.0兆帕，225℃，和1000小时的气时空速^-1进行了研究。结果表明，循环方式可使催化剂床处于等温状态，并提高C ₃₅₊烃的选择性和生产率。发现当循环比从2.2提高到6时，催化剂的失活速率减慢了八倍，而合成产物中不饱和烃的量增加了一倍。