TY - JOUR
T1 - Development of batch and continuous processes on biodiesel production in a packed-bed reactor by a mixture of immobilized Candida rugosa and Rhizopus oryzae lipases
AU - Lee, Jong Ho
AU - Kim, Sung Bong
AU - Park, Chulhwan
AU - Tae, Bumseok
AU - Han, Sung Ok
AU - Kim, Seung Wook
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2010/5
Y1 - 2010/5
N2 - In this study, transesterification and esterification were investigated in batch and continuous process using immobilized Candida rugosa and Rhizopus oryzae lipases. In the case of batch process, stepwise reaction method was investigated to prevent the lipase deactivation. Reaction conditions were as follows: temperature, 45 °C; agitation speed, 250 rpm; enzyme concentration, 20%; and water contents 10%. And then, conversion yield was 98.33% at 4 h. In the case of continuous process, circulation and long-term continuous system were investigated for development of efficient mass transfer system. Optimal reaction conditions were as follows: temperature, 45 °C; flow rate, 0.8 mL/min; and water contents, 10%. And then, conversion yield of biodiesel was 97.98% at 3 h. Especially, the maximum conversion yield using a mixture of immobilized lipases exceeded over 90% for 108 h in longterm continuous system under optimal reaction conditions (45 °C; flow rate, 0.8 mL/min; and water contents, 10%). These results should help in determining the bestmethod for the biodiesel production and improving the design and operation of large scale by enzymatic systems.
AB - In this study, transesterification and esterification were investigated in batch and continuous process using immobilized Candida rugosa and Rhizopus oryzae lipases. In the case of batch process, stepwise reaction method was investigated to prevent the lipase deactivation. Reaction conditions were as follows: temperature, 45 °C; agitation speed, 250 rpm; enzyme concentration, 20%; and water contents 10%. And then, conversion yield was 98.33% at 4 h. In the case of continuous process, circulation and long-term continuous system were investigated for development of efficient mass transfer system. Optimal reaction conditions were as follows: temperature, 45 °C; flow rate, 0.8 mL/min; and water contents, 10%. And then, conversion yield of biodiesel was 97.98% at 3 h. Especially, the maximum conversion yield using a mixture of immobilized lipases exceeded over 90% for 108 h in longterm continuous system under optimal reaction conditions (45 °C; flow rate, 0.8 mL/min; and water contents, 10%). These results should help in determining the bestmethod for the biodiesel production and improving the design and operation of large scale by enzymatic systems.
KW - Circulation process
KW - Esterification
KW - Long-term continuous process
KW - Packed-bed reactor
KW - Transesterification
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U2 - 10.1007/s12010-009-8829-z
DO - 10.1007/s12010-009-8829-z
M3 - Article
C2 - 19898962
AN - SCOPUS:77952982753
VL - 161
SP - 365
EP - 371
JO - Applied Biochemistry and Biotechnology
JF - Applied Biochemistry and Biotechnology
SN - 0273-2289
IS - 1-8
ER -