Preparation of mo nitride catalysts and their applications to the hydrotreating of indole and benzothiophene
Preparation of mo nitride catalysts and their applications to the hydrotreating of indole and benzothiophene
复制标题
氮化钼催化剂的制备及其在吲哚和苯并噻吩加氢精制中的应用
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
S. Ihm
中科院分区：
文献类型：
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作者：
Do;Dong;S. Ihm
氮化钼是通过用流动的 NH3 程序升温还原 MoO3 来制备的。对它们进行了吲哚 HDN 和苯并噻吩 HDS 测试。 NH3 空速太低或太高都不足以产生高表面积的氮化钼。升温速率（β1温度范围内高于2.5 K/min的升温速率除外）几乎不影响所制备样品的表面积。 XRD分析表明MoO2是生产高比表面积Mo氮化物的重要中间体。 Mo氮化物对吲哚HDN和苯并噻吩HDS的催化转化与其表面积密切相关。提出了两种反应的反应路径。 Mo氮化物可以成为一种有效的催化剂，无需进一步对芳烃进行加氢，从而减少氢气的消耗。
Molybdenum nitrides were prepared by temperature-programmed reduction of MoO3 with flowing NH3. They were tested for indole HDN and benzothiophene HDS. Too low or high NH3 space velocity was inadequate to produce high surface area Mo nitride. The temperature ramping rate (except the rate higher than 2.5 K/min in β1 temperature range) hardly affected the surface area of the prepared samples. The XRD analysis suggested that MoO2 was the important intermediate for producing the high surface area Mo nitride. The catalytic conversions of Mo nitrides for indole HDN and benzothiophene HDS were well correlated with their surface areas. The reaction pathways of both reactions were proposed. The Mo nitride could be an effective catalyst without further hydrogenation of aromatics, thereby reducing the consumption of hydrogen.