Nonlinear optical evidences of aggregation in asphaltene-toluene solutions

Jimmy Castillo; Jannett Hung; Alberto Fernández; Vladimiro Mujica

doi:10.1016/S0016-2361(01)00008-4

Nonlinear optical evidences of aggregation in asphaltene-toluene solutions

Jimmy Castillo, Jannett Hung, Alberto Fernández, Vladimiro Mujica

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Evidences of asphaltene aggregation are presented through the application of the Z-scan technique to study the nonlinear optical response of solutions of asphaltenes in toluene. Strong dependence of the two photon absorption coefficients (β) with the input intensity was observed for concentrated solutions, as opposed to the observed behavior at low concentration. The results suggest that a change in (β) occurs as a consequence of aggregation. The results are of importance for the study of dark samples like those relevant for crude oils.

Original language	English (US)
Pages (from-to)	1239-1243
Number of pages	5
Journal	Fuel
Volume	80
Issue number	9
DOIs	https://doi.org/10.1016/S0016-2361(01)00008-4
State	Published - Jul 2001
Externally published	Yes

Keywords

Aggregation
Asphaltenes
Toluene

ASJC Scopus subject areas

Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

Access to Document

10.1016/S0016-2361(01)00008-4

Cite this

@article{261c6112cbe645229bec5180351d4db7,

title = "Nonlinear optical evidences of aggregation in asphaltene-toluene solutions",

abstract = "Evidences of asphaltene aggregation are presented through the application of the Z-scan technique to study the nonlinear optical response of solutions of asphaltenes in toluene. Strong dependence of the two photon absorption coefficients (β) with the input intensity was observed for concentrated solutions, as opposed to the observed behavior at low concentration. The results suggest that a change in (β) occurs as a consequence of aggregation. The results are of importance for the study of dark samples like those relevant for crude oils.",

keywords = "Aggregation, Asphaltenes, Toluene",

author = "Jimmy Castillo and Jannett Hung and Alberto Fern{\'a}ndez and Vladimiro Mujica",

note = "Funding Information: This work was supported by the CONICIT-Venezuela through grants G-97000722, S1-95000574 and the CDCH of U.C.V. grant 03-12-3872-98.",

year = "2001",

month = jul,

doi = "10.1016/S0016-2361(01)00008-4",

language = "English (US)",

volume = "80",

pages = "1239--1243",

journal = "Fuel",

issn = "0016-2361",

publisher = "Elsevier BV",

number = "9",

}

TY - JOUR

T1 - Nonlinear optical evidences of aggregation in asphaltene-toluene solutions

AU - Castillo, Jimmy

AU - Hung, Jannett

AU - Fernández, Alberto

AU - Mujica, Vladimiro

N1 - Funding Information: This work was supported by the CONICIT-Venezuela through grants G-97000722, S1-95000574 and the CDCH of U.C.V. grant 03-12-3872-98.

PY - 2001/7

Y1 - 2001/7

N2 - Evidences of asphaltene aggregation are presented through the application of the Z-scan technique to study the nonlinear optical response of solutions of asphaltenes in toluene. Strong dependence of the two photon absorption coefficients (β) with the input intensity was observed for concentrated solutions, as opposed to the observed behavior at low concentration. The results suggest that a change in (β) occurs as a consequence of aggregation. The results are of importance for the study of dark samples like those relevant for crude oils.

AB - Evidences of asphaltene aggregation are presented through the application of the Z-scan technique to study the nonlinear optical response of solutions of asphaltenes in toluene. Strong dependence of the two photon absorption coefficients (β) with the input intensity was observed for concentrated solutions, as opposed to the observed behavior at low concentration. The results suggest that a change in (β) occurs as a consequence of aggregation. The results are of importance for the study of dark samples like those relevant for crude oils.

KW - Aggregation

KW - Asphaltenes

KW - Toluene

UR - http://www.scopus.com/inward/record.url?scp=0035400047&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035400047&partnerID=8YFLogxK

U2 - 10.1016/S0016-2361(01)00008-4

DO - 10.1016/S0016-2361(01)00008-4

M3 - Article

AN - SCOPUS:0035400047

SN - 0016-2361

VL - 80

SP - 1239

EP - 1243

JO - Fuel

JF - Fuel

IS - 9

ER -

Nonlinear optical evidences of aggregation in asphaltene-toluene solutions

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this