Adsorption from flooding solutions in porous media: Second annual report, October 1986-October 1987. [C)sub 8)benzenesulfonate and C)sub 12)EO)sub 8) alcohol]

Technical Report · Tue Mar 01 04:00:00 UTC 1988

OSTI ID:5231587

Somasundaran, P; Bell, R; Boyd, J; Chandar, P; Fu, E; Huang, Y; Ramachandran, R; Pereira, V; Sivakumar, A; Snell, E; Velosa, A; Viswanathan, K V

Surfactant formulations that are used in enhanced oil recovery consist of mixtures of various components. We have continued studies on mixtures of an anionic surfactant, C/sub 8/benzenesulfonate, and a nonionic surfactantt. C/sub 12/EO/sub 8/alcohol. Adsorption data on alumina and silica show that strong interactions between the two surfactants occur. On alumina on which the nonionic does not absorb by itself the presence of small amounts of adsorbed sulfonate was sufficient to cause significant adsorption of ethoxylated alcohol. On silica sulfonate did not absorb by itself but only did so in the presence of alcohol. Interactions between surfactants were quantified using the regular mixing model. Interaction parameters between -3 and -5 were determined at the liquidair interface in mixed micelles from surface tension data for different surfactant compositions. Work is focused on directly measuring thermodynamic quantities using microcalorimetry. Surfactant structural effects were also studied. A series of branched C/sub 14/benezenesulfonates emphasizes characterization along with adsorption measurements. Results showed major influences in addition to that of chain lenth and chain branching due to the position in the benzene ring of the longer alkyl chain in relation to that of the sulfonate group. 43 refs., 54 figs., 3 tabs

• Research Organization: Columbia Univ., New York (USA). School of Engineering and Applied Science
• DOE Contract Number: AC19-85BC10848
• OSTI ID: 5231587
• Report Number(s): DOE/BC/10848-10; ON: DE88001217
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ADSORPTION
ADSORPTION HEAT
ADSORPTION ISOTHERMS
ALCOHOLS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ALUMINIUM SILICATES
CALORIMETRY
CARBOHYDRATES
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
DATA
DILUTION
DISPERSIONS
DOCUMENT TYPES
ENERGY SOURCES
ENHANCED RECOVERY
ENTHALPY
ESTERS
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
INFORMATION
ISOTHERMS
KAOLINITE
LIGNIN
MATHEMATICAL MODELS
MICELLAR SYSTEMS
MINERALS
MIXTURES
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
POLYSACCHARIDES
PROGRESS REPORT
REAGENTS
RECOVERY
SACCHARIDES
SILICA
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SORPTIVE PROPERTIES
SULFONIC ACID ESTERS
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
THERMODYNAMIC PROPERTIES