Keith L. Gawrys

Works (7)

Updated: July 5th, 2023 15:58

2006 journal article

Hexabenzocoronene model compounds for asphaltene fractions: Synthesis & characterization

Hexabenzocoronene model compounds for asphaltene fractions: Synthesis & characterization. ENERGY & FUELS, 20(6), 2439–2447.

By: F. Rakotondradany*, H. Fenniri *, P. Rahimi *, K. Gawrys*, P. Kilpatrick * & M. Gray *

UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

On the distribution of chemical properties and aggregation of solubility fractions in asphaltenes

ENERGY & FUELS, 20(2), 705–714.

By: K. Gawrys n, G. Blankenship n & P. Kilpatrick n

UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Solvent entrainment in and flocculation of asphaltenic aggregates probed by small-angle neutron scattering

LANGMUIR, 22(10), 4487–4497.

By: K. Gawrys n, G. Blankenship n & P. Kilpatrick n

TL;DR: The results indicate that the inclusion of solvation effects is essential for the accurate determination of aggregate molecular weights and fractal dimensions. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Asphaltenic aggregates are polydisperse oblate cylinders

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 288(2), 325–334.

By: K. Gawrys n & P. Kilpatrick n

author keywords: asphaltenes; small-angle neutron scattering; polydispersity
TL;DR: Results indicate that the polydisperse radius oblate cylinder model best approximates the shape of asphaltene scattering spectra, and agreement of the model fit parameters (I(0) and R(G)) with those obtained from Guinier analyses suggests that such a form factor model is physically reasonable. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 article

Association behavior of pyrene compounds as models for asphaltenes

ENERGY & FUELS, Vol. 19, pp. 1268–1271.

By: K. Akbarzadeh  n, D. Bressler  n, J. Wang  n, K. Gawrys n, M. Gray  n, P. Kilpatrick n, H. Yarranton  n

UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Asphaltene aggregation: Techniques for analysis

INSTRUMENTATION SCIENCE & TECHNOLOGY, 32(3), 247–253.

By: K. Gawrys n & P. Kilpatrick n

author keywords: asphaltenes; near-infrared spectroscopy; pulsed-field gradient spin echo nuclear magnetic resonance; small-angle neutron scattering; vapor pressure osmometry
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Aggregation and solubility behavior of asphaltenes and their subfractions

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 267(1), 178–193.

By: P. Spiecker n, K. Gawrys n & P. Kilpatrick n

TL;DR: Asphaltenes from four different crude oils were fractionated in mixtures of heptane and toluene and analyzed chemically, by vapor pressure osmometry (VPO), and by small angle neutron scattering (SANS). (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

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