Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate
The effect of fluid dynamic conditions on enzymatic hydrolysis of acid pretreated corn stover (PCS) has been assessed. Runs were performed in stirred tanks at several stirrer speed values, under typical conditions of temperature (50 °C), pH (4.8) and solid charge (20% w/w). A complex mixture of cellulases, xylanases and mannanases was employed for PCS saccharification. At low stirring speeds (<150 rpm), estimated mass transfer coefficients and rates, when compared to chemical hydrolysis rates, lead to results that clearly show low mass transfer rates, being this phenomenon the controlling step of the overall process rate. However, for stirrer speed from 300 rpm upwards, the overall process rate is controlled by hydrolysis reactions. The ratio between mass transfer and overall chemical reaction rates changes with time depending on the conditions of each run. © 2016 Elsevier Ltd.
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Language: | English |
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Elsevier
2016
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Subjects: | Enzymatic hydrolysis, Lignocellulosic biomass, Mass transfer, Stirrer speed, Fluid dynamic, |
Online Access: | http://hdl.handle.net/20.500.12792/4776 http://hdl.handle.net/10261/293490 |
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dig-inia-es-10261-2934902023-02-20T10:29:00Z Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate Wojtusik, M. Zurita Redondo, María Esther Villar, J. C. Ladero, M. García-Ochoa, F. Enzymatic hydrolysis Lignocellulosic biomass Mass transfer Stirrer speed Fluid dynamic The effect of fluid dynamic conditions on enzymatic hydrolysis of acid pretreated corn stover (PCS) has been assessed. Runs were performed in stirred tanks at several stirrer speed values, under typical conditions of temperature (50 °C), pH (4.8) and solid charge (20% w/w). A complex mixture of cellulases, xylanases and mannanases was employed for PCS saccharification. At low stirring speeds (<150 rpm), estimated mass transfer coefficients and rates, when compared to chemical hydrolysis rates, lead to results that clearly show low mass transfer rates, being this phenomenon the controlling step of the overall process rate. However, for stirrer speed from 300 rpm upwards, the overall process rate is controlled by hydrolysis reactions. The ratio between mass transfer and overall chemical reaction rates changes with time depending on the conditions of each run. © 2016 Elsevier Ltd. 2023-02-20T10:29:00Z 2023-02-20T10:29:00Z 2016 journal article Bioresource Technology 216: 28-35 (2016) 0960-8524 http://hdl.handle.net/20.500.12792/4776 http://hdl.handle.net/10261/293490 10.1016/j.biortech.2016.05.042 en none Elsevier |
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Enzymatic hydrolysis Lignocellulosic biomass Mass transfer Stirrer speed Fluid dynamic Enzymatic hydrolysis Lignocellulosic biomass Mass transfer Stirrer speed Fluid dynamic |
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Enzymatic hydrolysis Lignocellulosic biomass Mass transfer Stirrer speed Fluid dynamic Enzymatic hydrolysis Lignocellulosic biomass Mass transfer Stirrer speed Fluid dynamic Wojtusik, M. Zurita Redondo, María Esther Villar, J. C. Ladero, M. García-Ochoa, F. Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate |
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The effect of fluid dynamic conditions on enzymatic hydrolysis of acid pretreated corn stover (PCS) has been assessed. Runs were performed in stirred tanks at several stirrer speed values, under typical conditions of temperature (50 °C), pH (4.8) and solid charge (20% w/w). A complex mixture of cellulases, xylanases and mannanases was employed for PCS saccharification. At low stirring speeds (<150 rpm), estimated mass transfer coefficients and rates, when compared to chemical hydrolysis rates, lead to results that clearly show low mass transfer rates, being this phenomenon the controlling step of the overall process rate. However, for stirrer speed from 300 rpm upwards, the overall process rate is controlled by hydrolysis reactions. The ratio between mass transfer and overall chemical reaction rates changes with time depending on the conditions of each run. © 2016 Elsevier Ltd. |
format |
journal article |
topic_facet |
Enzymatic hydrolysis Lignocellulosic biomass Mass transfer Stirrer speed Fluid dynamic |
author |
Wojtusik, M. Zurita Redondo, María Esther Villar, J. C. Ladero, M. García-Ochoa, F. |
author_facet |
Wojtusik, M. Zurita Redondo, María Esther Villar, J. C. Ladero, M. García-Ochoa, F. |
author_sort |
Wojtusik, M. |
title |
Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate |
title_short |
Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate |
title_full |
Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate |
title_fullStr |
Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate |
title_full_unstemmed |
Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass Effect of mass transfer rate |
title_sort |
influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass effect of mass transfer rate |
publisher |
Elsevier |
publishDate |
2016 |
url |
http://hdl.handle.net/20.500.12792/4776 http://hdl.handle.net/10261/293490 |
work_keys_str_mv |
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