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Effect of nickel cobalt co-catalyst on catalytic activity of molybdenumnaphthenatefor the hydroprocessing of coal tar pitch in suspension bed
燃料化学学报 Pub Date : 2021-01-01 , DOI: 10.1016/s1872-5813(21)60002-6
Meng-de WU , Guang-ci LI , Ming-shi LI , Xue-bing LI , Keng CHUNG , Song CHEN

Abstract Five dispersed molybdenum, nickel and cobalt oil soluble homogeneous catalysts were synthesized. The hydrogenation of coal tar pitch was under the conditions of 370°C, 10MPa hydrogen pressure, and 4 h reaction time in an autoclave reactor. The effects of molybdenum naphthenate addition, molybdenum nickel and molybdenum cobalt bimetallic ratios on hydrogenation were investigated. The catalytic hydrogenation effect was evaluated by the liquid yield. A variety of analytical methods, such as elemental analysis, ICP-MS, TEM, XPS, and four component separation, were used to explore the optimal catalytic system for the slurry bed hydrogenation of coal tar pitch. The results show that the optimal catalytic system is molybdenum naphthenate and nickel naphthenate ratio of 1:1 at catalyst amount of 2×103. Under optimal conditions, the liquid yield is 85.3%, the residue yield is 10.6%, and the gas yield is 4.1%.

中文翻译:

镍钴助催化剂对悬浮床煤焦油沥青加氢处理环烷酸钼催化活性的影响

摘要 合成了五种分散的钼、镍、钴油溶性均相催化剂。煤焦油沥青的加氢在370℃、10MPa氢气压力、4h反应时间的高压釜反应器中进行。考察了环烷酸钼的添加量、钼镍和钼钴双金属比例对加氢的影响。通过液体收率评价催化加氢效果。采用元素分析、ICP-MS、TEM、XPS、四组分分离等多种分析方法探索煤沥青浆态床加氢的最佳催化体系。结果表明,催化剂用量为2×103时,环烷酸钼与环烷酸镍的比例为1:1,最佳催化体系为最佳催化体系。在最优条件下,
更新日期:2021-01-01
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