Design, fabrication and preliminary testing of a hydraulic press algal oil expeller for chlorella vulgaris oil extraction

Date

2013

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Rex B. Demafelis

Committee Member

Gino Apollo M. Guerrero

Abstract

A study on design and preliminary testing of a hydraulic press algal oil expeller foe Chlorella vulgaris was conducted. The designed hydraulic press for algal oil extraction was fabricated and a preliminary testing that involves the selection of outer lining filter and extraction of microwave pre-treated algal biomass. The composition of extracted algal oil was profiled using thin layer chromatography. The fabricated algal oil expeller has the following major parts: frames and support, 3 ton capacity hydraulic jack, round static metal press plate, drilled Stainless steel 300 sheet vessel, collection p[an and outer vessel filter septum. Plastic wire gauze, cheesecloth and filter paper were considered in the selection of the outer lining filter septum and each obtained a mean per cent oil yield 7.68%, 12.29% and 3.16% and relative efficiency of 50.37%, 80.59% and 20.73%, respectively. Extraction of the microwave pre-treated algal biomass at two minutes, four minutes and six minutes exposure was also performed at 600 watts and 2.450 GHz. The percent oil yield for each time interval were 12.29% 12/.32% and 11.47% and their relative efficiency were 80.78%, 80.78% and61.60% for 2 minutes, 4 minutes and 6 minutes respectively. Thin layer chromatogram showed that the extracted algal oil has the following per cent mean composition of 53.73%. 1-3 diglycerides 5.22% triglycerides, 1.78% free fatty acids, 8.85% 1-2 diglycerides, and 30.43% monoglycerides.

Language

English

Location

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

Call Number

LG 993.5 2013 E62 /F37

Document Type

Thesis

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