The Conductivity and Dielectric Behavior of Solutions of Bitumen In Toluene

Autor: Ross S. Chow, Koichi Takamura, Daniel L. Tse
Rok vydání: 2008
Předmět:
Zdroj: The Canadian Journal of Chemical Engineering. 82:840-845
ISSN: 1939-019X
0008-4034
Popis: The conductivity and dielectric constant of solutions of bitumen in toluene were determined for bitumens of differing asphaltene content. The results show that the conductivity is primarily controlled by the asphaltene content while the dielectric constant can be described in terms of the polarity and concentration of the various fractions of the bitumen. It is demonstrated that it is possible to determine bitumen content of a solution of bitumen in toluene by measuring the conductivity. La conductivite et la constante dielectrique de solutions de bitume dans du toluene ont ete determinees pour des bitumes de differentes teneurs en asphaltene. Les resultats montrent que la conductivite est principalement controlee par la teneur en asphaltene tandis que la constant dielectrique peut se decrire en termes de polarite et de concentration des diverses fractions de bitume. On demontre qu'il est possible de determiner la teneur en bitume d'une solution de bitume dans du toluene en mesurant la conductivite.
Databáze: OpenAIRE