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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >A comparative activity study of a new ultra-dispersed catalyst system for a hydrocracking/hydrotreating technology using vacuum residue oil: Merey/Mesa
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A comparative activity study of a new ultra-dispersed catalyst system for a hydrocracking/hydrotreating technology using vacuum residue oil: Merey/Mesa

机译：比较研究的新活动ultra-dispersed催化剂系统加氢裂化、加氢处理技术使用真空残渣油:Merey /台面

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摘要

Ultra-dispersed catalysts give an improvement over the main reactions activity by having a low deactivation rate. They provide as well other advantages like a diminution in the catalysts metal concentration, a reduction in contaminants and also these catalysts can be used in almost every area where heterogeneous catalysts are used. Catalysts synthesis optimization is important to improve process recovery, especially in hydrocracking/hydrotreating processes, where feedstock is vacuum residue. Here, we have evaluated the catalytic performance of two molybdenum-nickel catalysts prepared using different emulsion formulation, named E-T (base catalyst) and AT-48 (new catalyst). Our results showed that, the percentage of converted products for VR 500 C~+, asphaltenes and microcarbon are comparable for both E-T and AT-48 catalysts, despite the fact that for the latter a lower molybdenum concentration was used. In addition, post-catalytic particles analyses using SEM and TEM techniques demonstrated that AT-48 catalyst showed a non-aggregated and homogeneous narrower distribution of metallic particles than E-T one. The lower average particle size distribution is related to the improvement of the liquid product yields for the hydroconversion of Mery/Mesa VR using the AT-48 catalyst.
机译：Ultra-dispersed催化剂改进主要的反应活动通过低失活率。优点像减少催化剂金属浓度,减少污染物也可以使用这些催化剂在几乎每一个领域异构催化剂使用。重要的改善过程恢复,特别是在加氢裂化和加氢处理过程,原料是真空残渣。评估两个的催化性能molybdenum-nickel催化剂准备使用不同的乳液配方,名叫E-T(基地催化剂)和48号(新催化剂)。表明,转化产物的百分比VR 500 C ~ +、沥青质和microcarbon可比E-T和48岁的催化剂,尽管后者更低使用钼浓度。利用SEM和post-catalytic颗粒分析TEM技术表明,48岁的催化剂显示非聚合和齐次窄比E-T金属颗粒的分布。较低的平均粒度分布相关的改善液体产品收益率hydroconversion Mery /台面的虚拟现实使用48岁的催化剂。

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