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Publications
JOURNAL ARTICLES
A. P. Sullivan, N. N. Zaki, and P. K. Kilpatrick, Correlating the Stability of Water-in-Crude and Model Oil Emulsions , Journal of Colloid and Interface Science, submitted.
N. N. Zaki, R. G. Carbonell, and P. K. Kilpatrick,
A Novel Class of Solvents for Extracting and Fractionating Heavy
Petroleum Residues , Energy and Fuels, submitted.
Kamran Akbarzadeh, David C. Bressler, Jianing Wang, Keith L. Gawrys, Murray R. Gray, Peter K. Kilpatrick, and Harvey W. Yarranton , Association Behavior of Pyrene Compounds as Models for Asphaltenes, Energy and Fuels, 19, 1268-1271 (2005).
Xaoli Yang and P. K. Kilpatrick, Asphaltenes and Waxes Do Not Interact Synergistically and Coprecipitate in Solid Organic Deposits, Energy and Fuels, 19, 1360-1375 (2005).
K. L. Gawrys and P. K. Kilpatrick, Asphaltenic aggregates are polydisperse oblate cylinders, Journal of Colloid and Interface Science, 288 (2), 325-334 (2005).
M.-H. Ese and P. K. Kilpatrick, Stabilization of Water-in-Oil Emulsions by Naphthenic Acids and Their Salts: Model Compounds, Role of pH and Soap:Acid Ratio , J. Dispersion Sci. Tech., 25, 253-261 (2004).
P. M. Spiecker and P. K. Kilpatrick, Interfacial Rheology of Petroleum Asphaltenes at the Oil-Water Interface , Langmuir, 20 (10), 4022-4032 (2004).
K. L. Gawrys and P. K. Kilpatrick, Asphaltene Aggregation: Techniques for Analysis , Instrumentation Sci. Tech., 32 (3), 247-253 (2004).
N. N. Zaki, R. G. Carbonell, and P. K. Kilpatrick, A Novel Process for Demulsification of Water-in-Crude Oil Emulsions by Dense Carbon Dioxide , Ind Eng Chem Research, 42 , 6661-6672 (2003).
K. L. Gawrys, P. M. Spiecker, and P. K. Kilpatrick, The Role of Asphaltene Solubility and Chemistry on Asphaltene Aggregation, Petroleum Science and Technology, 21 , 461-489 (2003).
P. M. Spiecker, K. L. Gawrys, C. L. Trail, and P. K. Kilpatrick, Effects of petroleum resins on asphaltene aggregation and water-in-oil emulsion formation , Colloids and Surfaces A: Physicochem Eng Aspects, 220 , 9-27 (2003).
P. M. Spiecker, K. L. Gawrys, and P. K. Kilpatrick, Aggregation and solubility behavior of asphaltenes and their subfractions , Journal of Colloid and Interface Science, 267 , 178-193 (2003).
B. A. Musser, N. N. Zaki, and P. K. Kilpatrick, On the Role of Wax and Temperature in the Stability of Water-in-Oil Emulsions Stabilized by Asphaltenes , Langmuir, submitted.
M. K. Poindexter, N. N. Zaki, P. K. Kilpatrick, S. C. Marsh, and D. H. Emmons, Factors Contributing to Petroleum Foaming - Part I: Crude Oil Systems, Energy and Fuels, 16, 700-710 (2002).
N. N. Zaki, M. K. Poindexter, and P. K. Kilpatrick, Factors Contributing to Petroleum Foaming - Part II: Synthetic Crude Oil Systems, Energy and Fuels, 16, 711-717 (2002).
A. P. Sullivan and P. K. Kilpatrick, The Effects of Inorganic Solid Particles on Water and Crude Oil Emulsion Stability, Industrial and Engineering Chemistry Research, 41, 3389-3404 (2002).
J. M. Biales, Y. D. Wan, P. K. Kilpatrick, and G. W. Roberts, Separation of Fischer-Tropsch Wax from Catalyst Using Near-Critical Fluid Extraction: Analysis of Process Feasibility, Energy and Fuels, 13, 667-677 (1999).
S. Singh, J. D. McLean, and P. K. Kilpatrick, Fused Ring Aromatic Solvency in the Destabilization of Water-in-Asphaltene-Heptane-Toluene Emulsions, J. Dispersion Sci. Tech., 20, 279-293 (1999).
B. A. Musser and P. K. Kilpatrick, Molecular Characterization of Paraffinic and Microcrystalline Wax in Crude Petroleum, Energy and Fuels, 12, 715-725 (1998).
J. D. McLean, and P. K. Kilpatrick, Effects of Asphaltene Aggregation and Resin-Asphaltene Interactions on Stability of Emulsions Generated from Water-Heptane-Toluene-Resin-Asphaltene Mixtures, J. Colloid Interface Sci., 196, 23-34 (1997).
J. D. McLean, and P. K. Kilpatrick, Effects of Asphaltene Solvency on Stability of Water-in-Crude Oil Emulsions, J. Colloid Interface Sci., 189, 242-253 (1997).
J. D. McLean and P. K. Kilpatrick, Comparison of Precipitation and Extrography in the Fractionation of Crude Oil Residua, Energy and Fuels, 11, 570-585 (1997).
P. K. Kilpatrick, J. F. Lisi, and R. G. Carbonell, Selective Precipitation of Antibody with Ligand-Modified Phospholipids: Effect of Lipid Chain Length, Biotechnology Progress, 13, 446-452 (1997).
P. K. Kilpatrick, J. F. Lisi, and R. G. Carbonell, Selective Precipitation of Antibody with Ligand-Modified Phospholipids: Effect of Lipid Chain Length , Biotechnology Progress, 13 , 446-452 (1997).
M. A. Jones, R. G. Carbonell, and P. K. Kilpatrick, Model calculations of competitive immunosorbent enzyme assays using bifunctional unilamellar vesicles , Biotechnology Progress, 12 , 519-526 (1996).
P. U. Kenkare, C. K. Hall, and P. K. Kilpatrick , The Effects of Salts on the Lower Consolute Boundary of a Non-Ionic Micellar Solution , J. Colloid Interface Sci., 184 , 456-468 (1996).
J. C. Blackburn and P. K. Kilpatrick, Electrostatic modeling of liquid crystalline aggregates , Ind. Eng. Chem. Research, 35 , 2823-2833 (1996).
A. K. Singh, P. K. Kilpatrick, and R. G. Carbonell, Application of Antibody and Fluorophore-Derivatized Liposomes to Heterogeneous Immunoassays for D-Dimer , Biotechnology Progress, 12 , 272-280 (1996).
N. J. Lynch, P. K. Kilpatrick, and R. G. Carbonell, Aggregation of Ligand-Modified Liposomes by Specific Interactions with Proteins II: Biotinylated Liposomes and Anti-Biotin Antibody , Biotech. Bioeng., 50 , 169-183 (1996).
N. J. Lynch, P. K. Kilpatrick, and R. G. Carbonell, Aggregation of Ligand-Modified Liposomes by Specific Interactions with Proteins I: Biotinylated Liposomes and Avidin , Biotech. Bioeng., 50 , 151-168 (1996).
P. K. Kilpatrick, Review of Colloid-Polymer Interactions: Particulate, Amphiphilic, and Biological Surfaces , American Scientist, 83 , 95-96 (1995).
A. K. Singh, P. K. Kilpatrick, and R. G. Carbonell, Non-competitive Immunoassays using UnilamellarVesicles , Biotechnology Progress, 11 , 333-341 (1995).
P. K. Kilpatrick, S. A. Khan, A. Tayal, and J. C. Blackburn, Rheological study of polycrystalline lyotropic mesophases in the cesium n-tetradecanoatee-water system, ACS Symposium Series, 578 , Structure and Flow in Surfactant Solutions, C. A. Herb and R. K. Prud'homme, eds., pg. 229-238 (1994).
D. D. Powers, R. G. Carbonell, and P. K. Kilpatrick, Affinity precipitation of an antibody by ligand-modified phospholipids, Biotech. Bioeng., 44 , 509-522 (1994).
M. A. Jones, P. K. Kilpatrick, and R. G. Carbonell, Competitive immunoadsorbent assays for biotin using bifunctional unilamellar vesicles , Biotechnology Progress, 10 , 174-186 (1994).
M. A. Jones, A. Singh, P. K. Kilpatrick, and R. G. Carbonell, Preparation and characterization of ligand-modified labelled liposomes for solid phase immunoassays, J. Liposome Research, 3 , 793-804 (1993).
M. A. Jones, R. G. Carbonell, and P. K. Kilpatrick, Bifunctional vesicles for enhancing enzyme-based immunoadsorbent assays , Biotechnology Progress, 9 , 242-258 (1993).
J. C. Blackburn and P. K. Kilpatrick, Transitional liquid crystalline phases between hexagonal and lamellar phases in ternary cesium n-tetradecanoate-water-additive mixtures , J. Colloid Interface Sci., 157 , 88-99 (1993).
D. E. Keller, R. G. Carbonell, and P. K. Kilpatrick, Adsorption equilibrium and desorption rates of charged ethoxylated surfactants on octadecyl silica: role of electrostatics , J. Colloid Interface Sci., 155 , 124-136 (1993).
D. D. Powers, B. Willard, R. G. Carbonell, and P. K. Kilpatrick, Affinity precipitation of proteins by surfactant-solubilized ligand-modified phospholipids , Biotechnology Progress, 8 , 436-453 (1992).
P. K. Kilpatrick, J. C. Blackburn, and T. A. Walter, Location of solubilized oil in lyotropic surfactant liquid crystalline phases and the resulting effects on phase equilibria , Langmuir, 8 , 2192-2199 (1992).
J. C. Blackburn and P. K. Kilpatrick, Using deuterium nmr lineshapes to analyze lyotropic liquid crystalline phase transitions , Langmuir, 8 , 1679-1687 (1992).
J. C. Blackburn and P. K. Kilpatrick, Lyotropic liquid crystalline phase behavior and structure of cesium n-tetradecanoate-water mixtures , J. Colloid Interface Sci., 149 , 450-471 (1992).
J. R. Hunter, R. G. Carbonell, and P. K. Kilpatrick, Coadsorption of lysozyme and b -casein at the air-water interface , J. Colloid Interface Sci., 143 , 37-53 (1991).
J. R. Hunter, P. K. Kilpatrick, and R. G. Carbonell, b -Casein adsorption at the air-water interface , J. Colloid Interface Sci., 142 , 429-447 (1991).
J. D. Powers, P. K. Kilpatrick, and R. G. Carbonell, Trypsin purification by affinity binding to small unilamellar vesicles , Biotech. Bioeng., 36 , 506-519 (1990).
R. Molinari, J. L. Torres, A. S. Michaels, P. K. Kilpatrick, and R. G. Carbonell, Simultaneous ultrafiltration and affinity sorptive separation of proteins in a hollow fiber membrane module , Biotech. Bioeng., 36 , 572-580 (1990).
J. R. Hunter, P. K. Kilpatrick, and R. G. Carbonell, Lysozyme adsorption at the air/water interface , J. Colloid Interface Sci., 137 , 462-482 (1990).
R. Z. Guzman, P. K. Kilpatrick, and R. G. Carbonell, Affinity precipitation of avidin using ligand-modified surfactants , ACS Symposium Series, 419 , Downstream Processing and Bioseparation: Recovery and Purification of Biological Products, J. F. Hamel, J. B. Hunter, and S. K. Sikdar, eds., pp. 212-236 (1990).
J. L. Torres, R. Guzman, R. G. Carbonell, and P. K. Kilpatrick, Reversibly bound ligands for high performance affinity chromatography: Application to serum cholinesterase , in Biotechnology of Plasma Proteins, J. F. Stoltz and C. Rivat, eds., Colloque INSERM 175 , 245-252 (1989).
R. Guzman, J. L. Torres, R. G. Carbonell, and P. K. Kilpatrick, Water soluble non-ionic surfactants for affinity separations , Biotech. Bioeng., 33 , 1267-1276 (1989).
D. E. Keller, J. L. Torres, R. G. Carbonell, and P. K. Kilpatrick, Reversible conversion of octadecyl-bonded silica to ion exchange surfaces for protein separations , Analytical Biochemistry, 176 , 191-198 (1989).
J. D. Powers, P. K. Kilpatrick and R. G. Carbonell, Protein purification by affinity binding to unilamellar vesicles , Biotech. Bioeng., 33 , 173-182 (1989).
J. L. Torres, R. Z. Guzman, R. G. Carbonell, and P. K. Kilpatrick, Affinity surfactants as reversibly bound ligands for high performance affinity chromatography , Analytical Biochemistry, 171 , 411-418 (1988).
P. K. Kilpatrick and M. A. Bogard, Effects of oil type on liquid crystalline phase behavior in sodium n-dodecanoate-water-oil mixtures , Langmuir, 4 , 790-796 (1988).
J. R. Hunter, R. Guzman, R. G. Carbonell, and P. K. Kilpatrick, Adsorption of proteins at gas-liquid interfaces , Biol. Chem. Hoppe-Seyler, 368 , 749 (1987).
R. Guzman, D. E. Keller, J. L. Torres, P. K. Kilpatrick, and R. G. Carbonell, Biospecific interactions of affinity-labelled surfactants with proteins, Biol. Chem. Hoppe-Seyler, 368 , 746 (1987).
S. G. Kim, R. G. Carbonell, and P. K. Kilpatrick, Calculation of electrostatic forces between charged surfaces in ionic solutions, Proceedings of the 10th Korean Symposium on Science and Technology, Industrial Technology I, 273-279 (1987).
P. K. Kilpatrick, H. T. Davis, L. E. Scriven, and W. G. Miller, Microstructure in n-alkane-water-electrolyte mixtures with small ethoylated alcohol amphiphiles , J. Colloid Interface Sci., 118 , 270-285 (1987).
A. Kassebi, R. W. Rousseau, and P. K. Kilpatrick, Tall oil recovery and the effects of solids content, b -sitosterol, acetic acid, and liquor source , TAPPI Journal, 70, 123-125 (1987).
R. Z. Guzman, R. G. Carbonell, and P. K. Kilpatrick, The adsorption of proteins to gas-liquid interfaces , J. Colloid Interface Sci., 114, 536-547 (1986).
P. K. Kilpatrick and S.-H. Chang, Saturated phase equilibria and parameter estimation of pure fluids with two lattice-gas models , Fluid Phase Equilibria, 30 , 49-56 (1986).
P. K. Kilpatrick, C. A. Gorman, H. T. Davis, L. E. Scriven, and W. G. Miller, Patterns of phase behavior in ethoxylated alcohol-n-alkane-water-sodium chloride mixtures , J. Phys. Chem., 90 , 5292-5299 (1986).
T. Chang, R. W. Rousseau, and P. K. Kilpatrick, Methanol synthesis reactions: Calculation of conversions using cubic equations of state , Ind. Eng. Chem., Proc. Des. Dev., 25 , 477-481 (1986).
D.-Y. Kuan, P. K. Kilpatrick, M. Sahimi, L. E. Scriven, and H. T. Davis, Multicomponent CO2-water-hydrocarbon phase behavior modeling: a comparative study , SPE Reservoir Engineering, 1 , 61-72 (1986).
P. K. Kilpatrick, W. G. Miller, and Y. Talmon, Staining and drying-induced artifacts in electron microscopy of surfactant-water mixtures. II. Change in phase behavior produced by variation in pH modifiers, stain, and concentration , J. Colloid Interface Sci., 107, 146-158 (1985).
P. K. Kilpatrick, H. T. Davis, and L. E. Scriven, Thermodynamic modeling of quaternary systems: oil-brine-surfactant-alcohol , Soc. Pet. Eng. Journal, 25, 330-342 (1985).
W. D. Covey, F. P. DeHaan, G. L. Delker, S. F. Dawson, P. K. Kilpatrick, G. B. Rattinger, and W. G. Read, Electrophilic aromatic substitution. 7. A kinetic study of the aluminum chloride catalyzed desulfonylative benzylation of aromatics with phenyl- methanesulfonyl chloride in nitromethane , J. Org. Chem., 49 , 3967-3970 (1984).
P. K. Kilpatrick and W. G. Miller, Aggregation of double-tail sulfonate surfactants probed by Na-23 NMR , J. Phys. Chem., 88, 1649-1655 (1984).
BOOK CONTRIBUTIONS
P. K. Kilpatrick and P. M. Spiecker, Asphaltene Emulsions, in Encyclopedia of Emulsion Technology, J. Sjoblom, ed., Dekker, New York, Chapter 30, 707-730 (2001).
J. D. McLean, P. M. Spiecker, A. P. Sullivan, and P. K. Kilpatrick, The Role of Petroleum Asphaltenes in the Stabilization of Water-in-Oil Emulsions, Chapter XII in Structure and Dynamics of Asphaltenes, E. Sheu and O. Mullins, eds., Plenum, New York, 377-422 (1998).
D. R. Zint and P. K. Kilpatrick, Synthesis and aggregation properties of ionic amphiphilic side-chain siloxane polymers, in Polymer and Fiber Science: Recent Advances, R. E. Fornes and R. D. Gilbert, eds., VCH, New York, pp. 215-232 (1992).
J. D. Powers, P. K. Kilpatrick and R. G. Carbonell, Purification of avidin from egg whites using affinity-modified unilamellar vesicles, in Biological and Synthetic Membranes, A.R. Liss, ed., 237-246 (1989).
P. K. Kilpatrick, W. G. Miller, and Y. Talmon, Staining and drying-induced artifacts in electron microscopy of surfactant-water mixtures. III. Evidence from optical microscopy and a negative-staining case, in Surfactants in Solution; Volume 64, K. L. Mittal and P. Bothorel, eds., Plenum Press, New York, IV, 489-500 (1986).
W. G. Miller, F. D. Blum, H. T. Davis, E. I. Franses, E. W. Kaler, P. K. Kilpatrick, K. Nietering, J. E. Puig, and L. E. Scriven, Fluid microstructures of sodium 4-(1'-heptylnonyl) benzene-sulfonate mixtures, in Surfactants in Solution, Volume I, K. L. Mittal and B. Lindman, Eds., Plenum Press, New York, III, 175-191 (1984).
P. K. Kilpatrick, F. D. Blum, H. T. Davis, A. H. Falls, E. W. Kaler, W. G. Miller, J. E. Puig, L. E. Scriven, Y. Talmon, and N. A. Woodbury, Alcohol effects on transitions in liquid crystalline dispersions , in Microemulsions , I. D. Robb, Ed., Plenum Press, New York, 1982, pp. 143-172.
1. Purification by affinity binding to liposomes, P. K. Kilpatrick, R. G. Carbonell, and J. D. Powers, U. S. Patent No. 4,913,902, Issued April 3, 1990; Canadian Patent No. 1,309,804, Issued November 3, 1992.
2. Chromatography apparatus and method and material for making the same, R. G. Carbonell,
P. K. Kilpatrick, J. L. Torres, and R. Guzman, U. S. Patent No. 5,045,190, Issued September 3, 1991.
3. Affinity precipitation of proteins using biospecific surfactants, R. G. Carbonell, P. K. Kilpatrick, and R. Guzman, U. S. Patent No. 5,112,770, Issued May 12, 1992.
4. Enhancement of immunosorbent assays with bifunctional vesicles,
R. G. Carbonell, P. K. Kilpatrick, M. A. Jones, and A. Singh, U.S.
Patent Application No. 07/795,910, filed November 19, 1991.
5. Continuation-in-Part for Precipitation of Multivalent Antiligands
with Affinity Surfactants, R. G. Carbonell, P. K. Kilpatrick, and
R. Guzman, U.S. Patent No. 5,167,925, Issued December 1, 1992.
6. Therapeutic, Production, and Immunostimulatory Uses of Biocidal
Compositions, J. Mullerat, D. A. Hazlett, W. A. Curby, and
P. K. Kilpatrick, U. S. Patent No. 5,830,511, Issued November 3, 1998.
7. Continuation in Part of Therapeutic, Production, and Immunostimulatory
Uses of Biocidal Compositions, J. Mullerat, D. A. Hazlett,
W. A. Curby, and P. K. Kilpatrick, U. S. Patent No. 6,004,587, Issued December 21, 1999.
8. Methods and Apparatus for Separating Fischer-Tropsch Catalysts from Liquid
Hydrocarbon Product, G. W. Roberts and P. K. Kilpatrick,
U.S. Patent No. 6,114,399, Issued September 5, 2000.
9. Methods and Apparatus for Separating Fischer-Tropsch Catalysts
from Liquid Hydrocarbon Product, G. W. Roberts and P. K. Kilpatrick,
U. S. Patent No. 6,217,830, Issued April 17, 2001.
*10. Methods of Demulsifying Emulsions Using Carbon Dioxide,
N. N. Zaki, P. K. Kilpatrick, and R. G. Carbonell,
U. S. Patent No. 6,566,410, Issued May 20, 2003.
11. Precipitation of Resins and Fractionation of Crude Oil Using CO2,
N. N. Zaki, P. K. Kilpatrick, and R. G. Carbonell, NCSU File No. 00-88;
filed September 2000.
*12. A Method of Bitumen and Heavy Residua Extraction and Asphalt
Cleaning Using an Environmentally Benign Solvent and Recycling the
Solvent By Treatment with Dense CO2, N. N. Zaki, R. G. Carbonell,
and P. K. Kilpatrick, NCSU File No. 01-46; filed June 2001.
