Microwave-Assisted Synthesis of Solketal from Glycerol and Acetone in the Presence of SAPO-34 and SAPO-5 | Sciact - CRIS-system of Boreskov Institute of Catalysis

Microwave-Assisted Synthesis of Solketal from Glycerol and Acetone in the Presence of SAPO-34 and SAPO-5 Full article

Journal

Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093

Output data

Year: 2025, Volume: 381, Article number : 113361, Pages count : 8 DOI: 10.1016/j.micromeso.2024.113361

Tags

Solketal; Glycerol; Acetone; Microwave irradiation; SAPO-34; SAPO-5

Authors

Makova Anna S. ^1,3 , Panchenko Valentina N. ² , Bolotov Vasilii A. ² , Davshan Nikolai A. ¹ , Mishin Igor V. ¹ , Timofeeva Maria N. ^1,2 , Shefer Kristina I. ² , Ter-Akopyan Marina ³ , Kustov Leonid M. ^1,3 , Jhung Sung Hwa ⁴

Affiliations

1	N.D. Zelinsky Institute of Organic Chemistry, RAS, Leninsky prospect 47, Moscow 119991, Russian Federation
2	G.K. Boreskov Institute of Catalysis SB RAS, Prospekt Akad. Lavrentieva 5, 630090, Novosibirsk, Russian Federation
3	National University of Science and Technology ‘MISIS’, Leninsky prospect 4, 119049 Moscow, Russian Federation
4	Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, DaeHak-Ro 80, Buk-Ku, Daegu 41566, Republic of Korea

Funding (2)

1	Russian Science Foundation	23-73-30007 (123042000027-5)(FFZZ-2022-0005)
2	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0035

Solketal is one of the most promising additives improving the properties of motor fuels. Investigations related to process intensification of synthesis of solketal from glycerol and acetone is gaining importance. The present work illustrates the use of the microwave mode for intensification of this process in the presence of silicoaluminophosphates (SAPO) as catalysts. The main focus of the study was placed on tuning the textural, acidic, and catalytic properties of SAPO-34 and SAPO-5 via variation of the synthesis parameters, such as type of Al and Si sources and the structure-directing agent. The catalytic properties of SAPO materials were investigated in the synthesis of solketal from glycerol and acetone under microwave assistance at acetone/glycerol molar ratio of 2.4 in methanol solution (glycerol/methanol: 1 g/1 mL) and 56 oC. It was demonstrated that selectivity towards solketal was 91.1-98.6% in the presence of studied materials. The activities of mesoporous SAPO-34 and SAPO-5 prepared in the presence of and triethylamine (TEA) were higher as compared with microporous SAPO-34 prepared in the presence of tetraethylammonium hydroxide (TEAOH) due to the high mesoporosity and a larger content of acid sites. The 90.4% conversion of glycerol and 98.6% selectivity towards solketal were observed in the presence of mesoporous 7.6%SAPO-34 for 90 min. The advantage of using microwave technology is shown. The solketal yield in the reaction under microwave irradiation was 3 times higher than that in the process performed under thermal heating conditions

Makova A.S. , Panchenko V.N. , Bolotov V.A. , Davshan N.A. , Mishin I.V. , Timofeeva M.N. , Shefer K.I. , Ter-Akopyan M. , Kustov L.M. , Jhung S.H.
Microwave-Assisted Synthesis of Solketal from Glycerol and Acetone in the Presence of SAPO-34 and SAPO-5
Microporous and Mesoporous Materials. 2025. V.381. 113361 :1-8. DOI: 10.1016/j.micromeso.2024.113361 WOS Scopus OpenAlex

Submitted:	Aug 9, 2024
Accepted:	Oct 3, 2024
Published online:	Oct 5, 2024
Published print:	Jan 1, 2025

Web of science:	WOS:001332874400001
Scopus:	2-s2.0-85205900241
OpenAlex:	W4403157075

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