Adsorption calorimetry and enhanced oil recovery: Three component systems, topical report. [Decyltrimethylammonium bromide/water/sodium bromide methanol/toluene/n-heptane]
One objective of this project is to determine the adsorptive losses of EOR chemicals on minerals in a systematic manner and expand adsorption models for incorporation as an adsorption module into chemical flooding simulators. The Woodbury-Noll adsorption model was developed which fits both amount and heat of adsorption simultaneously. Two ternary systems were selected with a view to extending the Woodbury-Noll adsorption model to these systems. In the first of these systems, DTAB/NaBr/H20/silica, competitive effects are not present. In the second system, methanol/toluene/heptane/silica, competitive adsoprtion is present. Flow adsorption calorimetry was carried out on these ternary systems and on their respective binaries. Adsorption calorimetry of DTAB from solutions with added electrolyte showed that the heat and the amount of adsorption increased when the salt content was raised to 3 percent, being approximately constant thereafter. However, the increase in salinity above this amount moved the plateau region to lower surfactant concentrations. Adsorption of DTAB at 45)degree)C resulted in lower adsorption than at 25)degree)C, but the heat release was only slightly lower. The heat and amount of adsorption of methanol from heptane onto silica are both markedly reduced by the presence of toluene in the solution. Densities of the surfactant solutions and of the binaries of methanol/toluene/heptane system are reported. 6 refs., 20 figs., 13 tabs.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 5231553
- Report Number(s):
- NIPER-305; ON: DE88001221
- Resource Relation:
- Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HEPTANE
SOLVENT PROPERTIES
METHANOL
ADSORPTION
ADSORPTION HEAT
ORGANIC BROMINE COMPOUNDS
QUATERNARY COMPOUNDS
SILICA GEL
SORPTIVE PROPERTIES
SODIUM BROMIDES
THERMODYNAMIC ACTIVITY
SURFACTANTS
TOLUENE
WATER
CALORIMETRY
COMPARATIVE EVALUATIONS
ENHANCED RECOVERY
EXPERIMENTAL DATA
ISOTHERMS
MIXTURES
PETROLEUM
TEMPERATURE EFFECTS
THERMODYNAMIC PROPERTIES
ADSORBENTS
ALCOHOLS
ALKALI METAL COMPOUNDS
ALKANES
ALKYLATED AROMATICS
AMINES
AMMONIUM COMPOUNDS
AROMATICS
BROMIDES
BROMINE COMPOUNDS
DATA
DISPERSIONS
ENERGY SOURCES
ENTHALPY
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RECOVERY
SODIUM COMPOUNDS
SORPTION
SURFACE PROPERTIES
020300* - Petroleum- Drilling & Production
400201 - Chemical & Physicochemical Properties