One-Pot Synthesis of Menthol from Citral over Ni/H-β-38 Extrudates Containing Bentonite Clay Binder in Batch and Continuous Reactors Full article
| Journal |
Organic Process Research & Development
ISSN: 1083-6160 , E-ISSN: 1520-586X |
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| Output data | Year: 2023, Volume: 2023, Number: 27, Pages: 295–310 Pages count : 16 DOI: 10.1021/acs.oprd.2c00337 | ||||||
| Tags | citral menthol shaped catalyst clay binder Ni precursors trickle-bed | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0008 |
| 2 | Academy of Finland |
Abstract:
Optimization of bifunctional Ni catalysts was performed to enhance the catalytic performance in the one-pot synthesis of commercially valuable menthol from citral. The effect of nickel precursors (nitrate, chloride, acetate, and sulfate) and the addition of bentonite clay was investigated in citral transformations in a batch reactor at 70 °C and 10 bar hydrogen, demonstrating higher activity for the Ni-H-β-38-bentonite composite derived from a nickel nitrate precursor, which can be attributed to a higher surface area, optimal Brønsted to Lewis acidity and metal particle size, as well as the egg-shell distribution of Ni particles. H-β-38 impregnated with nickel nitrate, followed by calcination and reduction, was shaped with bentonite as a binder to give extrudates for exploring the citral transformations in the trickle-bed reactor at 50–70 °C and 10 bar hydrogen. The highest selectivity to the desired menthols of 45% was obtained with 70% stereoselectivity to the menthol isomer at 70 °C. The apparent activation energy for citral transformations to menthols of 18.6 kJ/mol indicated the presence of mass transfer limitations. Catalytic activity was linked with the physical-chemical properties, which were characterized by transmission electron microscopy, X-ray diffraction, temperature-programmed reduction, Fourier transform infrared spectroscopy with pyridine, N2 physisorption, and inductively coupled plasma–optical emission spectrometry methods.
Cite:
Simakova I.L.
, Vajglová Z.
, Martínez-Klimov M.
, Eränen K.
, Peurla M.
, Mäki-Arvela P.
, Murzin D.Y.
One-Pot Synthesis of Menthol from Citral over Ni/H-β-38 Extrudates Containing Bentonite Clay Binder in Batch and Continuous Reactors
Organic Process Research & Development. 2023. V.2023. N27. P.295–310. DOI: 10.1021/acs.oprd.2c00337 WOS Scopus РИНЦ AN OpenAlex
One-Pot Synthesis of Menthol from Citral over Ni/H-β-38 Extrudates Containing Bentonite Clay Binder in Batch and Continuous Reactors
Organic Process Research & Development. 2023. V.2023. N27. P.295–310. DOI: 10.1021/acs.oprd.2c00337 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Oct 25, 2022 |
| Published online: | Jan 30, 2023 |
| Published print: | Feb 17, 2023 |
Identifiers:
| Web of science: | WOS:000926709900001 |
| Scopus: | 2-s2.0-85147209908 |
| Elibrary: | 53845434 |
| Chemical Abstracts: | 2023:199590 |
| OpenAlex: | W4318539164 |