Mathematical description of the vapor-liquid equilibrium for analysis of extractive rectification

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6216786

Miroshnichenko, A A

Performance of the required technical calculations to optimize the extractive rectification (ER) process in removal of paraffins, naphthenes and olefins from benzene requires knowledge of the functional relationship between the relative volatility ..cap alpha.. of the substances removed and the type of solvent and its concentration X/sub s/ in the ER column. It has been shown to be possible to analyze ER by using experimental data on the vapor-liquid equilibrium in dilute solutions of the impurities in the main feedstock components and the solvent. A mathematical description is proposed for the isobaric vapor-liquid equilibrium for the paraffin-naphthene-olefin series and dilute solutions of them in benzene and the polar solvents N,N-dimethyl formamide, N-methyl pyrrolidone and dimethyl sulfoxide. The equations may be used to calculate the multicomponent extractive rectification process in the removal of paraffins, naphthenes and olefins from benzene.

• OSTI ID: 6216786
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 11; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010500* -- Coal
Lignite
& Peat-- Products & By-Products
ALKANES
ALKENES
AROMATICS
BENZENE
CYCLOALKANES
DISTILLATION
EQUILIBRIUM
FLUIDS
GASES
HYDROCARBONS
LIQUIDS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PHYSICAL PROPERTIES
PURIFICATION
REMOVAL
SEPARATION PROCESSES
SOLVENTS
THERMODYNAMIC PROPERTIES
VAPORS