tert-Butyl Ethers of Renewable Diols as Oxygenated Additives for Motor Gasoline. Part I: Glycerol and Propylene Glycol Ethers
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Published:2023-03-13
Issue:4
Volume:63
Page:428-436
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ISSN:0965-5441
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Container-title:Petroleum Chemistry
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language:en
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Short-container-title:Pet. Chem.
Author:
Samoilov V. O.ORCID, Stolonogova T. I.ORCID, Ramazanov D. N.ORCID, Tyurina E. V.ORCID, Lavrent’ev V. A.ORCID, Porukova Yu. I.ORCID, Chernysheva E. A.ORCID, Kapustin V. M.ORCID
Abstract
Abstract
The study investigates tert-butoxy alkanols (otherwise defined as polyol tert-butyl ethers) that have vicinal tert-butoxy and hydroxy groups in their molecules from the perspective of their usability as oxygenated additives for motor gasoline. A series of propylene glycol mono-tert-butyl ether (PTBE) and glycerol di-tert-butyl ether (di-GTBE) samples were prepared: PTBE by direct acid-catalytic alkylation of diols with tert-butanol, and di-GTBE by alkylation of epichlorohydrin. Adding PTBE and di-GTBE to base motor gasoline was found to improve its antiknock performance: the average blending research octane number to blending motor octane number ratios (bRON/bMON) equaled 120/111 and 124/104 for PTBE and di-GTBE, respectively. Furthermore, the effects of the ether additives on the properties of ethanol-blended base gasoline were characterized. Finally, the study describes the effect of polyol tert-butyl ether additives on the cloud point depression of ethanol-blended gasoline (low-temperature phase stabilization) and demonstrates a positive synergistic effect of adding the ethers mixed with ethanol.
Publisher
Pleiades Publishing Ltd
Subject
Geochemistry and Petrology,Energy Engineering and Power Technology,Fuel Technology,General Chemical Engineering,General Chemistry
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