Pervaporation of binary mixture of ethanol-water using diacap a-polysulfone dialysis membrane

Date

2011

Degree

Bachelor of Science in Chemical Engineering

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Rex B. Demafelis

Co-adviser

Francisco B. Elegado

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Abstract

Biofuels Act of 2006 (RA 9367) requires all bioethanol blended gasoline shall contain a minimum of five percent bioethanol fuel by volume. However, there is a need for lowering the cost of production. Pervaporation is one of the recent technologies in coping with this problem. It is a process of liquid separation using membranes which act as a separating barrier for the process. When the membrane and the liquid mixture come into contact, one of the components can be removed from the mixture due to its affinity and diffusivity in the membrane. The diluted ethanol solution (1%, 2%, 3%, 4% and 5% v/v) was passed through of Diacap α-polysulfone dialysis membrane using a vacuum pump. Different feed concentration(1%, 2%, 3%, 4% and 5% v/v) and vacuum pressure (1 in Hg, 2 in Hg, 3 in Hg, 4 in Hg and 5 in Hg) were employed in determining their effect on the permeate flux and selectivity of the membrane. It was observed that as the feed concentration increased, the selectivity of the membrane decreased and the permeate flux increased. The same observation was obtained when the vacuum pressure was increased. The highest percent increase obtained was 105% increase when 2% feed concentration permeated as 4.22%.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2011 E62 P34

Document Type

Thesis

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