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A packed bed membrane reactor for production of biodiesel using activated carbon supported catalyst.

Bioresource technology (2010-10-05)
Saeid Baroutian, Mohamed K Aroua, Abdul Aziz A Raman, Nik M N Sulaiman
ABSTRACT

In this study, a novel continuous reactor has been developed to produce high quality methyl esters (biodiesel) from palm oil. A microporous TiO2/Al2O3 membrane was packed with potassium hydroxide catalyst supported on palm shell activated carbon. The central composite design (CCD) of response surface methodology (RSM) was employed to investigate the effects of reaction temperature, catalyst amount and cross flow circulation velocity on the production of biodiesel in the packed bed membrane reactor. The highest conversion of palm oil to biodiesel in the reactor was obtained at 70 °C employing 157.04 g catalyst per unit volume of the reactor and 0.21 cm/s cross flow circulation velocity. The physical and chemical properties of the produced biodiesel were determined and compared with the standard specifications. High quality palm oil biodiesel was produced by combination of heterogeneous alkali transesterification and separation processes in the packed bed membrane reactor.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Potassium hydroxide, ACS reagent, ≥85%, pellets
Sigma-Aldrich
Potassium hydroxide, technical, ≥85%, powder
Sigma-Aldrich
Potassium hydroxide, pellets, reag. Ph. Eur., ≥85%
Sigma-Aldrich
Potassium hydroxide, puriss., meets analytical specification of Ph. Eur., BP, 85-100.5%, pellets
Sigma-Aldrich
Potassium hydroxide, puriss. p.a., ≥86% (T), pellets
Sigma-Aldrich
Potassium hydroxide, free-flowing, Redi-Dri, ACS reagent, ≥85%, pellets