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基于介孔MCM-41和Al-SBA-15的碱土催化剂用于从中间馏分油中脱除砜

Alkali Earth Catalysts Based on Mesoporous MCM-41 and Al-SBA-15 for Sulfone Removal from Middle Distillates.

作者信息

Karakhanov Eduard, Akopyan Argam, Golubev Oleg, Anisimov Alexander, Glotov Aleksandr, Vutolkina Anna, Maximov Anton

机构信息

Chemistry Department, Lomonosov Moscow State University, GSP-1, 1-3 Leninskiye Gory, Moscow 119991, Russia.

Gubkin Russian State University of Oil and Gas (National Research University), Leninsky Prospekt 65, Moscow 119991, Russia.

出版信息

ACS Omega. 2019 Jul 26;4(7):12736-12744. doi: 10.1021/acsomega.9b01819. eCollection 2019 Jul 31.

DOI:10.1021/acsomega.9b01819
PMID:31460396
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6690565/
Abstract

Mg, Ca, and Ba catalysts supported on structured mesoporous silica oxides types MCM-41 and Al-SBA-15 were synthesized and investigated in sulfone cracking for sulfur removal from oxidized diesel fuel. Functional materials and catalysts were characterized by low-temperature nitrogen adsorption/desorption, transmission electron microscopy, and inductively coupled plasma atomic emission spectroscopy techniques. Catalytic tests were carried out in fixed-bed and batch reactors with a model compound dibenzothiophene sulfone and oxidized diesel fraction as a feed. MgO/MCM-41 and MgO/Al-MCM-41 possess high activity in sulfone cracking. The sulfur content in the diesel fraction decreases from initial 450 up to 100 ppmw. Catalysts can be regenerated for reuse in several cycles and may be potentially scaled up for industrial applications.

摘要

合成了负载在MCM-41和Al-SBA-15型结构化介孔二氧化硅氧化物上的镁、钙和钡催化剂，并对其在砜裂解以从氧化柴油燃料中脱硫方面进行了研究。通过低温氮吸附/脱附、透射电子显微镜和电感耦合等离子体原子发射光谱技术对功能材料和催化剂进行了表征。在固定床和间歇式反应器中，以模型化合物二苯并噻吩砜和氧化柴油馏分为原料进行了催化试验。MgO/MCM-41和MgO/Al-MCM-41在砜裂解中具有高活性。柴油馏分中的硫含量从初始的450 ppmw降至100 ppmw。催化剂可以再生以便在多个循环中重复使用，并且有可能扩大规模用于工业应用。

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