Cetane-boosting fuel additives, method of manufacture, and uses thereof
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United States of America Patent
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Nov 10, 2020
Grant Date -
May 21, 2020
app pub date -
Jul 17, 2018
filing date -
Jul 19, 2017
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Abstract
A method of manufacturing a cetane-boosting fuel additive includes reacting formaldehyde and 2-ethylhexanol at a mole ratio of 10:1 to 1:1, or 5:1 to 1.5:1, or 4:1 to 2:1, or 3.5:1 to 2.5:1 in the presence of a heterogeneous acid catalyst at a temperature of 300 to 375° K to obtain a cetane-boosting product mixture comprising H3C(CH2)3CH(CH2CH3)CH2(OCH2)nOH, H3C(CH2)3CH(CH2CH3)CH2(OCH2)nOCH2CH(CH2CH3)(CH2)3CH3, or a combination thereof, wherein n has an average value of 2.8 to 3.2, preferably an average value of 3.
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