External mass transfer model for the hydrolysis of palm olein using immobilized lipase
The application of immobilized enzyme in packed-bed reactor is gaining interest in the industry as it offers advantages over conventional chemical reactions. However, external mass transfer limitation is significant in immobilized enzyme packed-bed reactors, especially at large scales. This study ai...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Institution of Chemical Engineers
2008
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| Online Access: | http://eprints.utm.my/7568/ http://eprints.utm.my/7568/1/Mohamad_Roji_Sarmidi_2008_External_Mass_Transfer_Model_for.pdf |
| _version_ | 1848891493033443328 |
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| author | Chew, Yin Hoon Lee, Chew Tin Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Razali, Firdausi |
| author_facet | Chew, Yin Hoon Lee, Chew Tin Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Razali, Firdausi |
| author_sort | Chew, Yin Hoon |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | The application of immobilized enzyme in packed-bed reactor is gaining interest in the industry as it offers advantages over conventional chemical reactions. However, external mass transfer limitation is significant in immobilized enzyme packed-bed reactors, especially at large scales. This study aimed to develop an external mass transfer model for immobilized lipase (EC 3.1.1.3) during the hydrolysis of palm olein. A mass transfer correlation model of the form JD = KRen−1 was developed based on the literatures. The Colburn factor, JD, which is a function of Reynolds and Schmidt numbers, can be related to the external mass transfer coefficient, km. The values of K and n were determined by conducting experimental work at different mass flow rates. It was found that the values of K and n are 0.093 and 0.5, respectively. Since the average mass transfer coefficients can be correlated in terms of dimensionless groups which characterize the flow conditions, this model can be used for reactor scale-up design. |
| first_indexed | 2025-11-15T20:58:50Z |
| format | Article |
| id | utm-7568 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:58:50Z |
| publishDate | 2008 |
| publisher | Institution of Chemical Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-75682010-06-01T15:53:30Z http://eprints.utm.my/7568/ External mass transfer model for the hydrolysis of palm olein using immobilized lipase Chew, Yin Hoon Lee, Chew Tin Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Razali, Firdausi TP Chemical technology The application of immobilized enzyme in packed-bed reactor is gaining interest in the industry as it offers advantages over conventional chemical reactions. However, external mass transfer limitation is significant in immobilized enzyme packed-bed reactors, especially at large scales. This study aimed to develop an external mass transfer model for immobilized lipase (EC 3.1.1.3) during the hydrolysis of palm olein. A mass transfer correlation model of the form JD = KRen−1 was developed based on the literatures. The Colburn factor, JD, which is a function of Reynolds and Schmidt numbers, can be related to the external mass transfer coefficient, km. The values of K and n were determined by conducting experimental work at different mass flow rates. It was found that the values of K and n are 0.093 and 0.5, respectively. Since the average mass transfer coefficients can be correlated in terms of dimensionless groups which characterize the flow conditions, this model can be used for reactor scale-up design. Institution of Chemical Engineers 2008-12 Article PeerReviewed application/pdf en http://eprints.utm.my/7568/1/Mohamad_Roji_Sarmidi_2008_External_Mass_Transfer_Model_for.pdf Chew, Yin Hoon and Lee, Chew Tin and Sarmidi, Mohamad Roji and Abdul Aziz, Ramlan and Razali, Firdausi (2008) External mass transfer model for the hydrolysis of palm olein using immobilized lipase. Food and Bioproducts Processing, 86 (4). pp. 276-282. ISSN 0960-3085 http://dx.doi.org/10.1016/j.fbp.2008.02.001 10.1016/j.fbp.2008.02.001 |
| spellingShingle | TP Chemical technology Chew, Yin Hoon Lee, Chew Tin Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Razali, Firdausi External mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| title | External mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| title_full | External mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| title_fullStr | External mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| title_full_unstemmed | External mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| title_short | External mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| title_sort | external mass transfer model for the hydrolysis of palm olein using immobilized lipase |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/7568/ http://eprints.utm.my/7568/ http://eprints.utm.my/7568/ http://eprints.utm.my/7568/1/Mohamad_Roji_Sarmidi_2008_External_Mass_Transfer_Model_for.pdf |