Composition of Petroleum Resins Inhibiting the Precipitate Formation in an Ultrasonically Treated Solution of Petroleum Wax in Decane

Morozova, A. V.; Volkova, G. I.; Krivtsov, E. B.

doi:10.1134/s0965544122060044

Cited by 2 publications

(1 citation statement)

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“…The structures of resins are similar to those of asphaltenes but with smaller molecular weight, higher H/C ratios and less heteroatoms in their structure [94,95]. The resin fraction is known to consist of C, H, N, O and S, the carbon and hydrogen mass content in molecules of heavy oil resins varies in a narrow range: 85 ± 3% C and 10.5 ± 1% H [96,97]. One of its important characteristics is its H/C atomic ratio, which varies within the range of 1.2-1.7 for resins of various oils, which is on average higher than that for asphaltenes, where H/C is from 0.97 to 1.28.…”

Section: Structural Characteristics Of Natural Surfactantsmentioning

confidence: 97%

A Review of Oil–Solid Separation and Oil–Water Separation in Unconventional Heavy Oil Production Process

Xiao

Geng

et al. 2022

IJMS

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Unconventional heavy oil ores (UHO) have been considered an important part of petroleum resources and an alternative source of chemicals and energy supply. Due to the participation of water and extractants, oil–solid separation (OSS) and oil–water separation (OWS) processes are inevitable in the industrial separation processes of UHO. Therefore, this critical review systematically reviews the basic theories of OSS and OWS, including solid wettability, contact angle, oil–solid interactions, structural characteristics of natural surfactants and interface characteristics of interfacially active asphaltene film. With the basic theories in mind, the corresponding OSS and OWS mechanisms are discussed. Finally, the present challenges and future research considerations are touched on to provide insights and theoretical fundamentals for OSS and OWS. Additionally, this critical review might even be useful for the provision of a framework of research prospects to guide future research directions in laboratories and industries that focus on the OSS and OWS processes in this important heavy oil production field.

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