ITEMS

modern scholarly publishers in the finest tradition

	Search

ICHMT DIGITAL LIBRARY ONLINE

ISSN 961-91393-0-5

Individual price:

$246.00 (Must be sent to your home address)

You can order single issue or individual article. To purchase a single issue or an individual article as well as to view tables of contents and abstracts click on issue number.

Institutional price:

$518.00

Volumes per year:

various

For Online Access

Year 1997

• 1International Symposium on Liquid-Liquid Two Phase Flow and Transport Phenomena
Antalya, Turkey, November 3-7, 1997

606 pages

Volume price - $192.00

PREDICTION OF MUTUAL DIFFUSION COEFFICIENTS OF AROMATICS- BY GROUP CONTRIBUTION METHOD

Xiu-Mei Guo
Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R.C.

Wei-Yang Fei
Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R.C.

Jia-Ding Wang
Department of Chemical Engineering, Tsinghua University, Beijing 100084, P.R.C.

ABSTRACT

The mutual diffusion coefficients of DMSO-aromatics (toluene, cumene, p-xylene, naphthalene, alpha-methyl naphthalene, phenanthrene, pyrene) at 25 °C have been measured using the metallic diaphragm cell technique. The group contribution method for the prediction of diffusion coefficients in liquid has been used successfully after defining new functional groups and evaluating the group parameters for these complex systems. A discussion at the effects and interactions of solution concentration and molecular structure on diffusion coefficients is also presented.