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Titre du document / Document title

Process intensification of biodiesel production using a continuous oscillatory flow reactor

Auteur(s) / Author(s)

HARVEY Adam P. (1) ; MACKLEY Malcolm R. (1) ; SELIGER Thomas (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Chemical Engineering, University of Cambridge, New Museums Site, Pembroke Street, Cambridge CB2 3RA, ROYAUME-UNI

Résumé / Abstract

Oscillatory flow reactors (OFRs) are a novel type of continuous reactor, consisting of tubes containing equally spaced orifice plate baffles. An oscillatory motion is superimposed upon the net flow of the process fluid, creating flow patterns conducive to efficient heat and mass transfer, whilst maintaining plug flow. Unlike conventional plug flow reactors, where a minimum Reynolds number must be maintained, the degree of mixing is independent of the net flow, allowing long residence times to be achieved in a reactor of greatly reduced length-to-diameter ratio. Many long residence time processes are currently performed in batch, as conventional designs of plug flow reactor prove to be impractical due to their high length-to-diameter ratios, which lead to problems such as high capital cost, large footprint, high pumping costs and, also control is difficult. The OFR allows these processes to be converted to continuous, thereby intensifying the process. The transesterification of various natural oils to form biodiesel is a long reaction, usually performed in batch. Conversion to continuous processing should improve the economics of the process, as the improved mixing should generate a better product (rendering the downstream separation processes easier), at lower residence time (reduction in reactor volume). These improvements can decrease the price of biodiesel, making it a more realistic competitor to petrodiesel. This paper shows that it is feasible to perform this reaction in an OFR at a lower residence time. The reaction was performed in a pilot-scale plant, using rapeseed oil and methanol as the feedstocks, and NaOH as the catalyst.

Revue / Journal Title

Journal of chemical technology and biotechnology    ISSN  0268-2575   CODEN JCTBDC 

Source / Source

Congrès
Process Innovation and Process Intensification (PI)2.International Conference, Edinburgh , ROYAUME-UNI (08/09/2002)
2003, vol. 78, no 2-3 (281 p.)  [Document : 4 p.] (13 ref.), [Notes: Selected papers], pp. 338-341 [4 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Wiley, Chichester, ROYAUME-UNI  (1986) (Revue)

Mots-clés anglais / English Keywords

Process intensification

;

Performance

;

Oscillating flow

;

Continuous process

;

Baffled tubes

;

Tubular reactor

;

Sodium Hydroxides

;

Base catalysis

;

Catalytic reaction

;

Methanol

;

Rapeseed oil

;

Transesterification

;

Production

;

Diesel fuel

;

Biofuel

;

Alternative motor fuel

;

Mots-clés français / French Keywords

Intensification procédé

;

Performance

;

Ecoulement oscillatoire

;

En continu

;

Tube avec chicane

;

Réacteur tubulaire

;

Sodium Hydroxyde

;

Catalyse basique

;

Réaction catalytique

;

Méthanol

;

Huile colza

;

Transestérification

;

Production

;

Carburant diesel

;

Biocarburant

;

Carburant remplacement

;

Mots-clés espagnols / Spanish Keywords

Rendimiento

;

Flujo oscilatorio

;

En continuo

;

Reactor tubular

;

Sodio Hidróxido

;

Catálisis básica

;

Reacción catalítica

;

Metanol

;

Aceite colza

;

Transesterificación

;

Producción

;

Carburante diesel

;

Biocarburante

;

Carburante reemplazo

;

Localisation / Location

INIST-CNRS, Cote INIST : 560, 35400010777812.0430

Nº notice refdoc (ud4) : 14577850



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