Statistical mechanical description of supercritical fluid extraction and retrograde condensation

Park, S. J.; Kwak, Tae-Hoon; Mansoori, G. Ali

doi:10.1007/bf00567105

Cited by 34 publications

(20 citation statements)

References 20 publications

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“…The inversion pressure of the isotherms is the result of the phenomenon known as retrograde condensation [39]. This phenomenon is characterized by high solubilities of the solutes at low temperatures before the inversion point (pressure).…”

Section: Global Yield Isothermsmentioning

confidence: 99%

Techno-economic evaluation of the extraction of turmeric (Curcuma longa L.) oil and ar-turmerone using supercritical carbon dioxide

Carvalho

Osorio-Tobón

Rostagno

et al. 2015

The Journal of Supercritical Fluids

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Section: Global Yield Isothermsmentioning

confidence: 99%

Techno-economic evaluation of the extraction of turmeric (Curcuma longa L.) oil and ar-turmerone using supercritical carbon dioxide

Carvalho

Osorio-Tobón

Rostagno

et al. 2015

The Journal of Supercritical Fluids

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“…Supercritical fluid extraction using carbon dioxide as a solvent can be a potential alternative to toxic organic solvents. The advantage of utilizing supercritical carbon dioxide extraction (SCCO 2 ) have been well-documented (Roselius et al, 1981;Mansoori et al, 1988;Park et al, 1987;Martinelli et al, 1991). CO 2 is nonflammable, non-toxic, environmentally-friendly, and cheap.…”

Section: Introductionmentioning

confidence: 98%

Selective caffeine removal from green tea using supercritical carbon dioxide extraction

Kim

et al. 2008

Journal of Food Engineering

113

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“…this may reduce the cost of production operation appreciably. this may be achieved by the optimum design of the oil production and transportation systems based on proper laboratory tests and implication of deposition prediction models [22][23][24][25].…”

Section: In Situ Field Remediation Methodsmentioning

confidence: 99%

Remediation of aphaltene and other heavy organic deposits in oil wells and in pipelines

2010

SOCAR Proceedings

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ReseRvoiR and petRoleum engineeRing ELMİ ƏSƏRLƏR w PROCEEDINGS w НАУЧНЫЕ ТРУДЫ 12 INTRODUCTIONarterial blockage in the petroleum industry is mostly due to the deposition of heavy organic molecules from petroleum fluids. Heavy organic molecules such as asphaltenes, asphaltogenic acids, diamondoids and derivatives, mercaptans, organometallics, paraffin /wax and resins exist in crude oils ( fig.1) in various quantities and forms [1,2]. such compounds could separate out of the crude oil solution due to various mechanisms and deposit, causing fouling in the oil reservoir, in the well, in the pipelines and in the oil production and processing facilities [1][2][3][4][5][6]. solid particles suspended in the crude oil may stick to the walls of the conduits and reservoirs ( fig.2). the toughness of the deposits has a lot to do whether there is asphaltene present in the crude oil even in minute quantities.asphaltene, which is a highly polar compound, generally act as a glue and mortar in hardening the deposits and, as a result, causing barrier to the flow of oil [7][8][9][10][11][12][13][14].depositions of the heavy organics present in crude oil happen due to various causes depending on their molecular nature. mercaptans and organometallics depositions are due to dissociation, solubility effects, or attachment to surfaces. diamondoids and paraffin/wax deposit and form solid crystals due, mostly, to lowering of temperature [15][16][17]. Resins are not known to deposit on their own, but they deposit together with asphaltenes [18]. the reasons for the asphaltenes and asphaltogenic acids deposition can be many factors including variations of temperature, pressure, pH, composition, flow regime, wall effect and electrokinetic phenomena. When several different heavy organic compounds are present in a in this report the methodologies and analysis for in situ remediation of heavy organics in petroleum production, transportation and processing industries is presented. First the heavy organics which deposit from petroleum fluids are indentified and it is pointed out that the more difficult member of these compounds to deal with are asphaltenes. six different in situ remediation methods are introduced which include: (i) production scheme alteration techniques; (ii) chemical treatment techniques; (iii) external force filed techniques; (iv) mechanical treatment techniques; (v) thermal treatment techniques; (vi) biological methods. also eight steps that appear to be necessary and effective in prevention and moderating the severity of the deposition and remediation are introduced which include: (a) predictive modeling and analysis; (b) dual completion of oil wells; (c) compatibility tests of injection fluids before applications; (d) consideration of the compositional gradient of heavy organics in reservoir in production scheme design; (e) application of mechanical removal technologies for deposits; (f) application of solvent for dissolution of deposits; (g) hot oil treatment of the in situ deposits; and (h) use of dispersant to stabilize ...

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Statistical mechanical description of supercritical fluid extraction and retrograde condensation

Cited by 34 publications

References 20 publications

Techno-economic evaluation of the extraction of turmeric (Curcuma longa L.) oil and ar-turmerone using supercritical carbon dioxide

Techno-economic evaluation of the extraction of turmeric (Curcuma longa L.) oil and ar-turmerone using supercritical carbon dioxide

Selective caffeine removal from green tea using supercritical carbon dioxide extraction

Remediation of aphaltene and other heavy organic deposits in oil wells and in pipelines

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