# A Survey on Mathematical Modelling of Deposition in Waxy Crude Oils

A. Fasano; L. Fusi; S. Correra; M. Margarone

Mathematical Modelling of Natural Phenomena (2011)

- Volume: 6, Issue: 5, page 157-183
- ISSN: 0973-5348

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topFasano, A., et al. "A Survey on Mathematical Modelling of Deposition in Waxy Crude Oils." Mathematical Modelling of Natural Phenomena 6.5 (2011): 157-183. <http://eudml.org/doc/222223>.

@article{Fasano2011,

abstract = {Waxy Crude Oils (WCO’s) are characterized by the presence of heavy paraffins in
sufficiently large concentrations. They exhibit quite complex thermodynamical and
rheological behaviour and present the peculiar property of giving rise to the formation of
segregated wax deposits, when temperature falls down the so called WAT, or Wax Appearance
Temperature. In extreme cases, segregated waxes may lead to pipeline occlusion due to
deposition on cold walls. In this paper we review the mathematical models formulated to
describe: (i) wax cystallization or thawing in cooling/heating cycles; (ii) the mechanisms
of mass transport in saturated non-isothermal solutions; (iii) the experimental device
used to measure wax solubility and wax diffusivity; (iv) wax deposition in pipelines
carrying a warm, wax-saturated WCO through cold regions; (v) wax deposition accompanied by
gelification during the cooling of a WCO under a thermal gradient. },

author = {Fasano, A., Fusi, L., Correra, S., Margarone, M.},

journal = {Mathematical Modelling of Natural Phenomena},

keywords = {waxy crude oils; molecular diffusion; mathematical models; free boundary problems},

language = {eng},

month = {8},

number = {5},

pages = {157-183},

publisher = {EDP Sciences},

title = {A Survey on Mathematical Modelling of Deposition in Waxy Crude Oils},

url = {http://eudml.org/doc/222223},

volume = {6},

year = {2011},

}

TY - JOUR

AU - Fasano, A.

AU - Fusi, L.

AU - Correra, S.

AU - Margarone, M.

TI - A Survey on Mathematical Modelling of Deposition in Waxy Crude Oils

JO - Mathematical Modelling of Natural Phenomena

DA - 2011/8//

PB - EDP Sciences

VL - 6

IS - 5

SP - 157

EP - 183

AB - Waxy Crude Oils (WCO’s) are characterized by the presence of heavy paraffins in
sufficiently large concentrations. They exhibit quite complex thermodynamical and
rheological behaviour and present the peculiar property of giving rise to the formation of
segregated wax deposits, when temperature falls down the so called WAT, or Wax Appearance
Temperature. In extreme cases, segregated waxes may lead to pipeline occlusion due to
deposition on cold walls. In this paper we review the mathematical models formulated to
describe: (i) wax cystallization or thawing in cooling/heating cycles; (ii) the mechanisms
of mass transport in saturated non-isothermal solutions; (iii) the experimental device
used to measure wax solubility and wax diffusivity; (iv) wax deposition in pipelines
carrying a warm, wax-saturated WCO through cold regions; (v) wax deposition accompanied by
gelification during the cooling of a WCO under a thermal gradient.

LA - eng

KW - waxy crude oils; molecular diffusion; mathematical models; free boundary problems

UR - http://eudml.org/doc/222223

ER -

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