Selective Production of Bio-Based Linear Alpha-Olefin from Wasted Fatty Alcohol on Al2O3 for Bio-Based Chemicals

The catalytic dehydration of a bio-based fatty alcohol was performed using Al2O3 prepared by solvothermal synthesis for selective production of long-chain linear-alpha-olefins (LAO). The effect of the synthesis temperature of alumina precursors on the dehydration of 1-octadecanol (C18H38O) was exami...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2021-08, Vol.13 (17), p.2850
Main Authors: Lee, Hye-Jin, Choi, Il-Ho, Kim, Seung-Wook, Hwang, Kyung-Ran
Format: Article
Language:English
Subjects:
Alcohol
Alcohols
Alkenes
Alumina
Aluminum oxide
Catalysis
Catalysts
Chemical industry
Chemical synthesis
Dehydration
Ethanol
Fatty acids
Hydrogenation
Lewis acid
Radiation
Selectivity
Spectrum analysis
Synthesis gas
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The catalytic dehydration of a bio-based fatty alcohol was performed using Al2O3 prepared by solvothermal synthesis for selective production of long-chain linear-alpha-olefins (LAO). The effect of the synthesis temperature of alumina precursors on the dehydration of 1-octadecanol (C18H38O) was examined based on the textural properties and Lewis acid–base properties of the catalysts. Amorphous alumina synthesized at 325 °C showed the highest surface area (233.07 m2/g) and total pore volume (1.237 cm3/g) among the catalysts and the best dehydration results: 93% conversion, 62% selectivity of 1-octadecene (C18H36), and 89% LAO purity. This was attributed to the increased Al/O ratio and atomic concentration of surface O in alumina, which were important factors in the catalytic dehydration of 1-octadecanol through the synergistic catalysis of acid–base pairs. The produced bio-based LAO can be key intermediates for synthesis of oxo alcohols and poly-alpha-olefins, as alternatives to petroleum-based LAO to achieve carbon neutrality in chemical industry.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13172850