• Dr. R.K. Joshi

Light petroleum fraction like naphtha and natural gas liquid (NGL) contain valuable naphthenic products such as cyclopentane and Cyclopehexane. Cyclopentane has emerged as the best alternative to CFCs, HCFCs and HFCs for blowing polyurethane for insulation in refrigeration industries. The reasons of this choice of cyclopentane includes; zero ozone depleting potential, environmental acceptance, reasonably low initial thermal conductivity, appropriate boiling point and proven availability. These factors outweighed the disadvantage of CP flammability. The separation of cyclopentane from their appropriate boiling range cuts is considered to be difficult separation step. Such appropriate cuts are generally required first to be made aromatic free before separation of these naphthenes from their corresponding boiling range paraffins. Simple distillation cannot be used as the boiling points overlap. Moreover, these components form azeotropes in between. The present study emphasis on direct separation of CP from the appropriate light naphtha cuts using extractive distillation approach.

Extractive distillation, selectivity, capacity, NMP, light naphtha, NGL

"Separation of Cyclopentane from close boiling paraffins using selective solvents in extractive distillation step", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.486-490, MAY-2018, Available :http://www.jetir.org/papers/JETIR1805679.pdf

"Separation of Cyclopentane from close boiling paraffins using selective solvents in extractive distillation step", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp486-490, MAY-2018, Available at : http://www.jetir.org/papers/JETIR1805679.pdf