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}. 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 were characterized by high solubility ion dense carbon dioxide and the most substantial increases in solution viscosity. Falling cylinder viscometry results indicated that the 29%styrene--71%fluoroacylate bulk-polymerized copolymer induced 2--250 fold increases in viscosity at copolymer concentrations of 0.2--5.0wt%.
- 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:
- 750877
- Report Number(s):
- DOE/BC/15108-5; TRN: AH200017%%46
- 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 CO{sub 2}-thickeners for improved mobility control