Microemulsion Formation with Mixed Chlorinated Hydrocarbon Liquids

Baran, Jimmie R.; Pope, Gary A.; Wade, William H.; Weerasooriya, V.; Yapa, A.

doi:10.1006/jcis.1994.1394

Cited by 60 publications

(82 citation statements)

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“…When the logarithm of the partition coefficient of various alcohols was plotted versus the EACN of the NAPL (NAPL EACNs from 19,20), a linear relationship was observed that was analogous to that of optimum salinity for surfactants. An example is shown in Figure 1.…”

Section: Equivalent Alkane Carbon Number Correlation From Alcohol Parmentioning

confidence: 95%

“…Design. The PITT is then designed using the UTCHEM simulator (Delshad et al,19%) following an extensive sensitivity analysis of the geosystem model, including the demonstration of the hydraulic control of the tracers injected, such that this model of the DNAPL distribution is confirmed or denied by the PITT to the extent possible.…”

Section: Development Of the "Geosystem " Model Of Aquifermentioning

confidence: 99%

“…Wade and Schechter and co-workers in the 1970's for understanding and correlating the behavior of surfactants for enhanced oil recovery (17, 18) and more recently was found to be of great value in understanding and evaluating surfactant enhanced remediation of chlorocarbons (19). The EACN of a pure alkane is just its carbon number.…”

Section: Equivalent Alkane Carbon Number Correlation From Surfactant mentioning

confidence: 99%

“…Phase behavior experiments were carried out with various anionic surfactants and the linear alkanes and the optimum salinity for each of these surfactants and hydrocarbons measured. Optimal salinity is defined as the electrolyte concentration More recently, the same approach was found to work for a wide variety of chlorocarbons and mixtures of chlorocarbons and hydrocarbons (19,20). A very useful and significant aspect of the EACN approach is that the EACN of a multicomponent oil or NAPL is the mole fraction average of the pure component values:…”

Section: Equivalent Alkane Carbon Number Correlation From Surfactant mentioning

confidence: 99%

“…The initial estimates of alcohol and NAPL EACNs were made graphically by plotting all of the data using the defined values of EACN for the linear alcohols and normal alkanes plus the literature values of EACN for chlorocarbons and jet fuel (19,20).…”

Section: Equivalent Alkane Carbon Number Correlation From Alcohol Parmentioning

confidence: 99%

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In-situ characterizations of dense non-aqueous phase liquids using partitioning tracers. Annual progress report, September 15, 1996--September 14, 1997

Pope¹,

McKinney²,

Gupta³

et al. 1998

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This paper describes laboratory research conducted to investigate the use of partitioning tracers for the detection, volume estimation, and remediation performance assessment of vadose zones contaminated by nonaqueous phase liquids (NAPLs). These laboratory studies used Ottawa sand and field soil packed columns. The columns were saturated, then reduced to residual saturations of water and NAPL, creating a three phase system of air, water, and NAPL.Conservative and partitioning gas tracers were injected into the column and their elutions were analyzed. The method of moments was used to estimate partition coefficients between the air and NAPL phases for each of the tracers. The partition coefficients and retardation factors are used to select appropriate tracers for NAPL detection and volume estimation in the field. This research identified several perfluorocarbon tracers suitable for use in the field and demonstrated the feasibility of using partitioning tracers as a tool for NAPL detection and volume estimation in the vadose zone. INTRODUCTIONA widespread and recurring public health problem identified in recent years is the contamination of the subsurface by nonaqueous-phase liquids (NAPLs) (NRC 1994).Contamination at numerous private, government, and industrial facilities is well-documented and is clearly a problem for communities and populations located near these sites.1 Nonaqueous-phase liquid contamination of the subsurface occurs as NAPLs migrate from the surface, where in the past they were typically disposed in unlined pits, through the vadose zone to the water table. The migration of the NAPL though the vadose zone leaves a trail or streak of NAPL held in the pore space by capillary forces and is defined as residual or immobile NAPL.As water percolates through a contaminated vadose zone, NAPLs and other contaminants dissolve in the mobile water and may be carried to the saturated zone as dissolved constituents. Previously clean aquifers may receive harmful doses of pollutants without the bulk of the contaminants ever reaching the saturated zone.In many cases, because of the potential adverse impact of vadose-zone contamination on water supplies, remediation of the vadose zone may be essential. However, to design an effective remediation of an area, a detailed description of the site is necessary. Thus, the first step in site remediation is characterization. Two current methods using core sampling or cone penetrometer testing, which depend upon laboratory analysis, are time-consuming and expensive. To improve the site characterization process, better methods of detecting NAPLs are necessary (EPA 1992).A potentially better characterization method utilizes a technology developed in the petroleum industry. This technology is the partitioning inter-well tracer test (PITT). Partitioning, both single-well and interwell, tracer tests have been used for years to character& liquid residuals in oil-and gas-saturated reservoirs (Cooke 1971, Deans 1971, Allison et al. 1991, Tang and Harker 1991a. In a PITT...

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Section: Equivalent Alkane Carbon Number Correlation From Alcohol Parmentioning

confidence: 95%

Section: Development Of the "Geosystem " Model Of Aquifermentioning

confidence: 99%

Section: Equivalent Alkane Carbon Number Correlation From Surfactant mentioning

confidence: 99%

Section: Equivalent Alkane Carbon Number Correlation From Surfactant mentioning

confidence: 99%

Section: Equivalent Alkane Carbon Number Correlation From Alcohol Parmentioning

confidence: 99%

See 3 more Smart Citations

In-situ characterizations of dense non-aqueous phase liquids using partitioning tracers. Annual progress report, September 15, 1996--September 14, 1997

Pope¹,

McKinney²,

Gupta³

et al. 1998

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Surfactant Technologies for Remediation of Oil Spills

Acosta¹,

Quraishi²

2014

Oil Spill Remediation

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Extended Surfactants Including an Alkoxylated Central Part Intermediate Producing a Gradual Polarity Transition—A Review of the Properties Used in Applications Such as Enhanced Oil Recovery and Polar Oil Solubilization in Microemulsions

Salager

Forgiarini

Márquez

2019

J Surfact & Detergents

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The research published in the past half century indicates that surfactant interfacial performance in producing low tension or high solubilization with polar oils is not generally attained with pure conventional species exhibiting well‐defined polar and nonpolar parts. The improvement trends reached with surfactant mixtures as well as the introduction of additives like cosurfactants and linkers lead to the introduction of the so‐called extended surfactants, whose structure includes an intermediate polarity spacer between the hydrophilic head and the lipophilic tail. Recent investigations on different kinds of surfactants in a variety of applications—such as detergency, cosmetics, enhanced oil recovery or crude demulsifying, and vegetable oil extraction—indicate that these extended surfactants are likely to be particularly performing with oils containing polar groups, such as triacylglycerols and asphaltenic crudes. Possible applications of extended surfactants in enhanced oil recovery, crude emulsion breaking, detergency and cleaning, medicine and cosmetics vehicles, and natural oil extraction as well as some other cases are quickly reviewed.

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Microemulsion Formation with Mixed Chlorinated Hydrocarbon Liquids

Cited by 60 publications

References 0 publications

In-situ characterizations of dense non-aqueous phase liquids using partitioning tracers. Annual progress report, September 15, 1996--September 14, 1997

In-situ characterizations of dense non-aqueous phase liquids using partitioning tracers. Annual progress report, September 15, 1996--September 14, 1997

Surfactant Technologies for Remediation of Oil Spills

Extended Surfactants Including an Alkoxylated Central Part Intermediate Producing a Gradual Polarity Transition—A Review of the Properties Used in Applications Such as Enhanced Oil Recovery and Polar Oil Solubilization in Microemulsions

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