Crude oil wax: A review on formation, experimentation, …
2022年10月1日 · This review discusses the chemical composition, thermodynamic and kinetic modeling, and inhibition and removal techniques for crude oil wax. Further research is needed for multi-phase flows such as gas-oil-water and gas-oil-water-hydrates, among others.
Paraffin / Wax and Waxy Crude Oil - University of Illinois Chicago
The wax present in petroleum crudes primarily consists of paraffin hydrocarbons (C18 - C36) known as paraffin wax and naphthenic hydrocarbons (C30 - C60). Hydrocarbon components of wax can exist in various states of matter (gas, liquid o r …
Asphaltenes and waxes - PetroWiki
2018年1月15日 · Musser and Kilpatrick isolated waxes from sixteen different crude oils and found that paraffinic waxes had molecular weight ranges of 350 to 600, while microcrystalline waxes had large molecular weight ranges of 300 to 2,500. Of the 16 oils analyzed, five exhibited microcrystalline wax deposition, six precipitated paraffinic waxes, and the ...
Introductory Chapter: Petroleum Paraffins - IntechOpen
2020年9月9日 · Petroleum waxes are complex mixtures of hydrocarbons, amongst which are n-paraffin, branched chain paraffins and cycloparaffins in the range of C 18 –C 70 [2, 3, 4]. The quality and quantity of waxes manufactured from crude oils depend on the crude source and the degree of refining to which it has been subjected prior to wax separation [5, 6].
A comprehensive review of wax deposition in crude oil systems ...
2024年2月1日 · Waxy crude oil is one of the important fossil fuels and is found all over the world; it consists of saturated hydrocarbons (waxes), aromatics, cycloalkanes, and non-hydrocarbon compounds (Resins and asphaltenes) [6], [7], [8], [9], with waxes being the key component causing wax deposits, mainly n-alkanes with 16–38 carbon atoms, and ...
Study on waxy crudes characterisation and chemical inhibitor assessment
2021年9月1日 · Wax deposition brings severe challenges to the production, transportation, and storage of crude oils. Accumulation of wax can block the pipeline, lead to equipment failure, and lose production. The use of chemical inhibitors has been reported as one of the most effective measures to mitigate wax deposition in the pipeline.
Wax Formation Mechanisms, Wax Chemical Inhibitors and …
A wax dispersant also adsorbs onto wax crystals and forms a wax crystal lattice structure in the crude oil. The wax crystal structure later reduces the growing crystals’ morphology and delays the formation of a three-dimensional crystal.
Molecular Characterization of Wax Isolated from a Variety of Crude …
1998年6月2日 · Petroleum waxes from sixteen different crude oils were analyzed after isolation from the crude in a two-step process. These waxes were characterized molecularly to aid in the investigation of the effect of wax type and quantity on water-in-crude oil emulsion stability.
Molecular Characterization of Wax Isolated from a Variety of Crude …
1998年6月2日 · Petroleum waxes from sixteen different crude oils were analyzed after isolation from the crude in a two-step process. These waxes were characterized molecularly to aid in the investigation of the effect of wax type and quantity on water-in-crude oil emulsion stability.
Wax problems in production - PetroWiki
2018年1月15日 · Many crudes contain dissolved waxes that can precipitate and deposit under the appropriate environmental conditions. These can build up in production equipment and pipelines, potentially restricting flow (reducing volume produced) and creating other problems. This page discusses how to anticipate, prevent, and remediate wax problems in production.