Novel CO{sub 2}-thickeners for improved mobility control
The objective of this study was to design, synthesize, and characterize thickening agents for dense carbon dioxide and to evaluate their solubility and viscosity-enhancing potential in CO{sub 2}. Previously, hydrocarbon-fluorocarbon random copolymers, sulfated hydrocarbon-fluorocarbon random copolymers, semifluorinated trialkyltin fluorides and small hydrogen-bonding compounds were evaluated. Random copolymers of styrene and heptadecafluorodecyl acrylate yielded substantial increases in viscosity. The amount of styrene varied between 22--40 mole% in the copolymer. Falling cylinder viscometry results indicated that the 29% styrene--71% fluoroacrylate copolymer induced (at 295K and 34.5 Mpa) increases of 10, 60 and 250 at copolymer concentrations of 1, 3 and 5wt%, respectively.
- Research Organization:
- National Energy Technology Lab. (NETL), Tulsa, OK (United States). National Petroleum Technology Office (NPTO)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE) (US)
- DOE Contract Number:
- AC26-98BC15108
- OSTI ID:
- 750875
- Report Number(s):
- DOE/BC/15108-3; TRN: AH200017%%44
- Resource Relation:
- Other Information: PBD: 2 Feb 2000
- Country of Publication:
- United States
- Language:
- English
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Novel CO{sub 2}-thickeners for improved mobility control
NOVEL CO2-THICKENERS FOR IMPROVED MOBILITY CONTROL