Kinetic study of desulfonation of disulfonated alkyl diphenyloxide surfactants
Journal Article
·
· SPEJ, Soc. Pet. Eng. J.; (United States)
Kinetic study of the desulfonation of Dowfax /SUP r/ surfactants, disulfonated alkyl diphenyloxide, is carried out in the temperature range of from 177 to 272/sup 0/C, and a pH range of 2.0 to 7.0. The rate data support that the desulfonation is a step-wise reaction catalyzed by hydrogen ion. The desulfonation rate is first-order with respect to both surfactant and hydrogen ion concentrations. As a result, the pH of the reaction system has a very significant effect on the stability of the surfactants and may outweigh the effect of temperature. The halflife of disulfonated alkyl diphenyloxide at 235/sup 0/C in a 5.5-pH buffer solution is 1,035 days, and at 272/sup 0/C in a 7.0-pH buffer solution is 295 days. The results indicate that these surfactants can be used in most oil reservoir steamflood applications, especially when the rock formation may buffer the pH to about 7.0.
- Research Organization:
- Dow Chemical Co.
- OSTI ID:
- 5804395
- Journal Information:
- SPEJ, Soc. Pet. Eng. J.; (United States), Journal Name: SPEJ, Soc. Pet. Eng. J.; (United States) Vol. 22:6; ISSN SSPJD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kinetic study of desulfonation of disulfonated alkyl diphenyloxide surfactants
Kinetic study of the desulfonation of DOWFAX surfactants
Synergism in binary mixture of surfactants 11. Mixtures containing mono- and disulfonated alkyl- and dialkyldiphenylethers
Journal Article
·
Tue Nov 30 23:00:00 EST 1982
· Soc. Pet. Eng. AIME, Pap.; (United States)
·
OSTI ID:6329036
Kinetic study of the desulfonation of DOWFAX surfactants
Journal Article
·
Sun Oct 31 23:00:00 EST 1982
· Soc. Pet. Eng. AIME, Pap.; (United States)
·
OSTI ID:6230314
Synergism in binary mixture of surfactants 11. Mixtures containing mono- and disulfonated alkyl- and dialkyldiphenylethers
Journal Article
·
Wed Mar 31 23:00:00 EST 1993
· Journal of Colloid and Interface Science; (United States)
·
OSTI ID:6606368
Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ALKYL RADICALS
ARYL RADICALS
BUFFERS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DESULFURIZATION
ENHANCED RECOVERY
FLUID INJECTION
GEOLOGIC DEPOSITS
HALF-LIFE
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
KINETICS
MINERAL RESOURCES
OIL FIELDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM DEPOSITS
PH VALUE
PHENYL RADICALS
RADICALS
REACTION KINETICS
RECOVERY
RESERVOIR ROCK
RESOURCES
STEAM INJECTION
SULFONATION
SURFACTANTS
TEMPERATURE DEPENDENCE
THERMAL RECOVERY
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ALKYL RADICALS
ARYL RADICALS
BUFFERS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DESULFURIZATION
ENHANCED RECOVERY
FLUID INJECTION
GEOLOGIC DEPOSITS
HALF-LIFE
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
KINETICS
MINERAL RESOURCES
OIL FIELDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM DEPOSITS
PH VALUE
PHENYL RADICALS
RADICALS
REACTION KINETICS
RECOVERY
RESERVOIR ROCK
RESOURCES
STEAM INJECTION
SULFONATION
SURFACTANTS
TEMPERATURE DEPENDENCE
THERMAL RECOVERY