Facile molybdenum and aluminum recovery from spent hydrogenation catalyst

Zhenhui Lv ¹Jianan Li ²Dong Xue ³Tao Yang ³Gang Wang ³Chong Peng²

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作者信息

1. State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Dalian Research Institute of Petroleum and Petrochemicals,SINOPEC,Dalian 116041,China
2. State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China
3. Dalian Research Institute of Petroleum and Petrochemicals,SINOPEC,Dalian 116041,China
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Abstract

Industrial catalyst waste has emerged as a hazardous pollutant that requires safe and proper disposal after the unloading process.Finding a valuable and sustainable strategy for its treatment is a significant challenge compared to traditional methods.In this study,we present a facile method for the recovery of molybdenum and aluminum contents from spent Mo-Ni/Al2O3 hydrogenation catalysts through crys-tallization separation and coprecipitation.Furthermore,the recovered molybdenum and aluminum are utilized as active metals and carriers for the preparation of new catalysts.Their properties were thor-oughly analyzed and investigated using various characterization techniques.The hydrogenation activity of these newly prepared catalysts was evaluated on a fixed-bed small-scale device and compared with a reference catalyst synthesized from commercial raw reagents.Finally,the hydrogenation activity of the catalysts was further assessed by using the entire distillate oil of coal liquefaction as the raw oil,spe-cifically focusing on denitrogenation and aromatic saturation.This work not only offers an effective solution for recycling catalysts but also promotes sustainable development.

Key words

Waste treatment/Alumina/Hydrogenation/Catalyst/Crystallization/Precipitation

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基金项目

National Key Research and Development Program of China(2023YE41507601)

National Natural Science Foundation of China(22122807)

National Natural Science Foundation of China(22378038)

Fundamental Research Funds for the Central Universities(DUT23RC3044)

State Key Laboratory of Heavy Oil Processing,China University of Petroleum(WX20230149)

出版年

2024

中国化学工程学报(英文版)

中国化工学会

中国化学工程学报(英文版)

CSTPCDEI

影响因子：0.818

ISSN：1004-9541

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