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Article Abstract
The catalytic dehydration of a bio-based fatty alcohol was performed using AlO 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 (CHO) 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 m/g) and total pore volume (1.237 cm/g) among the catalysts and the best dehydration results: 93% conversion, 62% selectivity of 1-octadecene (CH), 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8433876 | PMC |
| http://dx.doi.org/10.3390/polym13172850 | DOI Listing |
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