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在5ml固定床反应器中使用KDD-12催化剂由合成气合成低碳醇的实验表明,压力、温度、空速等对催化剂合成醇性能影响明显,增加压力、空速可以提高低碳醇的收率和合成醇选择性,对合成低碳醇有利;升高反应温度可提高低碳醇收率,但选择性下降。在385℃,14.0MPa,11000h-1条件下,低碳醇收率为416.7ml/Lcat·h,醇选择性为82%,CH3OH/C2醇=2.77。产物分布符合Schulz-Flory定律。该催化剂活性高,反应稳定性好,抗硫中毒能力强,且具有反应过程中不需补充硫的优点。具有较好的工业应用前景。
Experiments on the synthesis of lower alcohols from synthesis gas using KDD-12 catalyst in a 5ml fixed-bed reactor showed that pressure, temperature, space velocity and other effects on the performance of the catalyst were obvious. Increasing pressure and space velocity could increase the yield of lower alcohols The selectivity to the alcohol and synthesis alcohol is favorable for the synthesis of lower alcohols. Increasing the reaction temperature can increase the yield of lower alcohols but decrease the selectivity. Under the conditions of 385 ℃, 14.0MPa and 11000h-1, the yield of low-carbon alcohol was 416.7ml / Lcat · h, the alcohol selectivity was 82% and the CH3OH / C2 alcohol was 2.77. Product distribution in line with Schulz-Flory’s law. The catalyst has high activity, good reaction stability, strong ability of resisting sulfur poisoning, and has the advantage of not needing sulfur replenishment in the reaction process. Has good prospects for industrial applications.