Effect of composition on freezing points of model hydrocarbon fuels

Affens, W. A.; Hall, James M.; Holt, S. M.; Hazlett, Robert N.

doi:10.1016/0016-2361(84)90294-1

Cited by 33 publications

(25 citation statements)

References 2 publications

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“…The studies have shown that the calorific value of jet fuel increases linearly with increasing hydrogen content. If a range of changes in sulfur concentration is acceptable 0-0.4 % the content of nitrogen and oxygen can slightly affect the value of combustion heat [4,5].…”

Section: A Membrane Technology Of Separating the Basic Aviation Kerosmentioning

confidence: 99%

“…The pore point data are particularly useful for preventing a paraffin effect on the AK flow. Typically, the value of pour point is 4-15 °C lower than the freezing point of different AK types [4,5].…”

Section: A Membrane Technology Of Separating the Basic Aviation Kerosmentioning

confidence: 99%

“…Kerosene-based AK is composed of compounds of 8-16 carbons. However, some AK contains compounds with narrower ranges of carbons from 5-15 units [5,6].…”

Section: A Membrane Technology Of Separating the Basic Aviation Kerosmentioning

confidence: 99%

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A membrane technology of separating the basic aviation kerosene from petroleum

Буртна

Гачечиладзе

2016

EEJET

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2. Analysis of the previous studies and formulation of the problem Aviation kerosene is kerosene with certain additives or "steroids". There exist different types of AK, although they all contain chemicals that are meant to provide complete and efficient fuel combustion in turbines and extending the engine lifetime. Therefore, strictly determined requirements of certain types of AK and an available wide-range kerosene fraction (120-310 °C) allow extracting only those components of the latter that are most suitable for the type of base fuel and subsequent adding "steroids" to achieve the desired AK parameters [1, 2]. AK based on a wide kerosene fraction has physical and chemical parameters of kerosene. Kerosene, or paraffin oil, is intermediate between gasoline and diesel fractions. However, given that the range of distillation temperatures is 120-310 °C, we should note that if distillation temperatures are >120 °C, the components of the kerosene fraction begin mixing with components of the gasoline fraction (35-210 °C), and if the temperatures are >160 °C, the process incorporates components of the diesel fraction (160-350 °C) [3]. Thus, it can be concluded that the kerosene fraction means a mixture of components of all the three light fractions.

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Section: A Membrane Technology Of Separating the Basic Aviation Kerosmentioning

confidence: 99%

Section: A Membrane Technology Of Separating the Basic Aviation Kerosmentioning

confidence: 99%

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A membrane technology of separating the basic aviation kerosene from petroleum

Буртна

Гачечиладзе

2016

EEJET

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“…Para misturas, como frações resultantes da destilação do petróleo, define-se o ponto de congelamento como sendo a temperatura em que desaparece o último dos cristais formados pelo resfriamento prévio da fração de petróleo, quando se reaquece essa fração sob constante agitação (FARAH, 2012). A composição da mistura em termos de componentes parafínicos, naftênicos e aromáticos é determinante para o valor do ponto de congelamento (AFFENS et al, 1984), sendo que em linhas gerais compostos parafínicos possuem maior ponto de congelamento.…”

Section: Introductionunclassified

Avaliação De Correlações Empíricas Para Estimativa De Ponto De Congelamento De Hidrocarbonetos Puros E Frações De Petróleo

Longe¹,

Fregolente²,

Santos³

2019

Blucher Chemical Engineering Proceedings

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RESUMO -O ponto de congelamento, propriedade de grande importância para querosene de aviação, é preferencialmente obtido por métodos experimentais. Porém, para minimizar custos na caracterização e obtenção do ponto de congelamento de hidrocarbonetos puros e de frações de petróleo, realizou-se uma pesquisa bibliográfica em busca de correlações que estimassem essa propriedade e posteriormente, avaliou-se a acuracidade das correlações através de dados experimentais da literatura. Como resultado, observou-se que apenas as correlações para hidrocarbonetos puros apresentaram resultados aderentes aos dados experimentais utilizados. Assim, novas correlações foram propostas para estimativa de ponto de congelamento para frações de petróleo com ponto de congelamento entre 140 K e 290 K, querosene e diesel, com melhores AAD de 9,0 K, 3,1 K e 4,5 K, respectivamente.

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“…For low-molecular weight alkanes, the phase transition occurs in a narrow temperature range. However, the interfacial behavior of alkanes confined in pores is characterized by a certain freezing point depression [2][3][4]. This effect depends on both the properties of alkanes (e.g.…”

Section: Introductionmentioning

confidence: 99%

Temperature behavior of water and n-decane bound to nanosilica or poly(methylsiloxane)

Туров¹,

Krupska²,

Tsapko³

et al. 2015

Him. Fiz. Tehnol. Poverhni

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The phase transition of n-decane bound to nanosilica initial hydrophilic or modified hydrophobic and branched 3D poly(methylsiloxane), PMS, was analyzed using 1 H NMR and quantum chemical methods. Freezing and melting points of n-decane are affected by nanosilica or PMS in CDCl 3 able to dissolve decane. The behavior of mixed water and decane depends on the adsorbent texture and surface nature, content of salt microparticles or nanoparticles and co-adsorbates. The freezing point depression under confined space results in stronger changes in the behavior of adsorbed decane than effects of melting delay occurring due to kinetic suppression and immobilization of solid-like structures in mesopores. The dispersion media (nonpolar CCl 4 , weakly polar CDCl 3 , polar CD 3 CN and trifluoroacetic acid) influence the interfacial and temperature behavior of mixed water and n-decane because decane can be easily dissolved in nonpolar or weakly polar solvents but water can strongly interacts with polar solvents and polar solid particles.

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Effect of composition on freezing points of model hydrocarbon fuels

Cited by 33 publications

References 2 publications

A membrane technology of separating the basic aviation kerosene from petroleum

A membrane technology of separating the basic aviation kerosene from petroleum

Avaliação De Correlações Empíricas Para Estimativa De Ponto De Congelamento De Hidrocarbonetos Puros E Frações De Petróleo

Temperature behavior of water and n-decane bound to nanosilica or poly(methylsiloxane)

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