TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Evaluation of 1, 2 Propylene Glycol as a New Solvent for Aromatic Hydrocarbons Liquid-Liquid Extraction from Catalytic Reformer Products
(Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, 100680, România. florin@oprea.org)
Vol LX • No. 4/2008
Oprea Florin
Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, 100680, România.
florin@oprea.org

 Keywords   liquid-liquid extraction, cloud point, NRTL parameters, simulation

 Abstract
There are few data in literature for the systems formed by the aromatic and paraffinic hydrocarbons with 1, 2 propylene glycol; current data do not allow evaluation of this solvent for aromatic hydrocarbons extraction from catalytic reformer products. The paper [1] presents: (1) Liquid-liquid experimental data in binary systems formed by 1, 2 propylene glycol with: benzene, n-hexane, toluene, n-heptane, methylbenzene, m-, o-, and p-xylene, n-octane; (2) Regression of experimental data in order to obtain NRTL and UNIQUAC binary interaction parameters for all binaries involved in aromatic extraction from catalytic reformer products. Present paper, based on [1] presents: (1) evaluating the performances of the new solvent; (2) the influence of introducing a co-solvent, water.

 Rezumat
Sunt puţine date în literatură privind echilibrul lichid-vapori în sistemele fornate de hidrocarburi (parafinice şi aromatice) cu o nouă clasă de solvenţi, propilenglicolii. Lucrarea prezintă, pe baza determinărilor experimentale şi a regresiilor efectuate în [1] evaluarea, performanţelor noului solvent, 1,2-monopropilen glicolul. Calculele au fost efectuate prin simulare pe amestecuri sintetice parafine-aromatice-solvent în domeniul C6-C8. De asemenea, tot prin simulare se evaluează influenţa apei utilizată drept co-solvent.



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