Oligomerization of Butene Mixture over NiO/Mesoporous Aluminosilicate Catalyst

Donggun Lee,Jong-Ki Jeon,Hyeona Kim,Young-Kwon Park

doi:10.3390/catal8100456

Donggun Lee, Jong-Ki Jeon + Show 2 more

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https://doi.org/10.3390/catal8100456

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Abstract

This study is aimed at preparing C8–C16 alkene through oligomerization of a butene mixture using nickel oxide supported on mesoporous aluminosilicate. Mesoporous aluminosilicate with an ordered structure was successfully synthesized from HZSM-5 zeolite by combining a top-down and a bottom-up method. MMZZSM-5 catalyst showed much higher butene conversion and C8–C16 yield in the butene oligomerization reaction than those with HZSM-5. This is attributed to the pore geometry of MMZZSM-5, which is more beneficial for internal diffusion of reactants, reaction intermediates, and products. The ordered channel-like mesopores were maintained after the nickel-loading on MMZZSM-5. The yield for C8–C16 hydrocarbons over NiO/MMZZSM-5 was higher than that of MMZZSM-5 catalyst, which seemed to be due to higher acid strength from a higher ratio of Lewis acid to Brønsted acid. The present study reveals that a mesoporous NiO/MMZZSM-5 catalyst with a large amount of Lewis acid sites is one of the potential catalysts for efficient generation of aviation fuel through the butene oligomerization.

Highlights

The greenhouse gas (GHG) emitted when an aircraft is in operation has negative impacts on the environment, including global warming [1]
The present study reveals that a mesoporous NiO/MMZZSM-5 catalyst with a large amount of Lewis acid sites is one of the potential catalysts for efficient generation of aviation fuel through the butene oligomerization
We have previously reported that silica-based, solid acid catalysts with mesopores and highly dispersed metal oxide catalysts are effective in the production of butene by butanol dehydration [12,13]

Summary

Introduction

The greenhouse gas (GHG) emitted when an aircraft is in operation has negative impacts on the environment, including global warming [1]. To resolve such problems, the International Civil Aviation. The Alcohol to Jet (ATJ) process for making alcohol from biomass as feedstock and for making aviation fuel from alcohol has recently attracted attention [3] This process involves the production of butene through the dehydration of butanol, the synthesis of higher olefins by oligomerization of the newly produced butene, and hydrogenation of the higher olefins [4,5,6]. We have previously reported that silica-based, solid acid catalysts with mesopores and highly dispersed metal oxide catalysts are effective in the production of butene by butanol dehydration [12,13]

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