The crystallization of solid petroleum hydrocarbons

Chernozhukov, N. I.; Vainshtok, V. V.; Kartinin, B. N.; Zezekalo, V. Ya.

doi:10.1007/bf00719010

Cited by 2 publications

(2 citation statements)

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“…The crystalline structures of t,he normal alkanes have been investigated by a number of workers (At,kiiison and Richardson, 1969;Chernozhukov et al, 1962;Clarke, 1961;King and Garner, 1936;Mazee, 1948;XIiiller, 1932aXIiiller, , 1936aMiiller and Lonsdale, 1948;Schaerer et al, 1955;Smith, 1953). Each form can be classified into one of the sis systems used in optical methods of analysis in which each system has a definite arrangement of three or four ases about' which the crystal planes are symmetrically placed.…”

Section: Crystalline Structure Of Normal Alkanesmentioning

confidence: 99%

Normal Alkanes

Turner¹

1971

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He holds a B.S. in chemistry from the University of Pennsylvania and is coauthor of several papers dealing with composition, properties, and behavior of petroleum waxes.In addition to waxes his interests include petrochemicals, polymers, and synthetic nutrients. He is a member of the American Chemical Society, the American Association for the Advancement of Science, and the Franklin Institute and a Fellow of the American Institute of Chemists.

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Section: Crystalline Structure Of Normal Alkanesmentioning

confidence: 99%

Normal Alkanes

Turner¹

1971

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166

100

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“…We first studied the evaporation behavior of C20, a normal alkane with the shortest chain length tested in this study, a) From A. Genovese et al 31) b) From D. Ivanov et al 32) c) From G. Gillet et al 33) d) From A. W. Schmidt et al 34) e) From S. Hafsaoui et al 35) f) From L. Ventola et al 36) g) From G. Schill et al 37) h) From F. S. Sinnatt et al 38) i) From our data using differential scanning calorimetry (for more details, see supporting information). I); therefore, the observed weight losses are due to evaporation, not sublimation.…”

Section: Vacuum Level and Chain Length Dependenciesmentioning

confidence: 91%

Normal alkane evaporation under vacuum: chain-length dependency and distillation from binary systems

Takahashi

Horike

Koshiba

et al. 2022

Jpn. J. Appl. Phys.

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Normal alkanes are among the simplest molecules that can be studied in physical chemistry. However, there is still more to learn about their liquid-to-gas phase transition characteristics, especially in vacuo. Here, we investigated the evaporation behavior of 12 different normal alkanes using thermogravimetry, both in air, and under reduced pressures (5000 to 10−2 Pa). The reduced pressures lowered the evaporation-onset temperatures of the normal alkanes. The evaporation-onset temperatures at 1 Pa were linearly correlated with the chain lengths (molecular weights). Furthermore, we found that the reduced pressures enabled the effective distillation of binary mixtures of normal alkanes because of the differences in the evaporation-onset temperatures. It was empirically determined that distillation (isolated evaporation of one of the binary mixture components) was achieved at ∼1 Pa when the chain of one of the alkanes was 30% longer than that of the other.

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The crystallization of solid petroleum hydrocarbons

Cited by 2 publications

References 1 publication

Normal Alkanes

Normal Alkanes

Normal alkane evaporation under vacuum: chain-length dependency and distillation from binary systems

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