Benzene extraction from petrochemical industry effluents

Abstract

The simulation calculations are presented in the liquid-liquid extraction operation of typical petrochemical industry streams, mainly composed of heptane and benzene. The solvent chosen based on the chemical properties of the system formed is DMF (dimethylformamide), thus studying its liquid-liquid equilibrium topology in order to evaluate the viability of the extraction operation. Simulation calculations are shown using Tsuboka y Katayama (1976) ISR strategies to evaluate the percentage of benzene recovery, which will subsequently be the basis for the implementation of this operation in the use of High environmental impact, thus avoiding its disposition in nature. This project is considered as a proposal in order to reduce the environmental consequences caused by the release of apolar substances in nature, taking them to a level where they can be used as raw materials for other industrial processes, solvents Or additives, thus generating added value by using substances that with an unproductive vision would be discarded. The recovery rate was 96.2%, high enough to be considered as a proposal for industrial application.