Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors

A membrane reactor produces high-quality biodiesel by combining both reaction and separation in a single unit. However, the reactor has disadvantages such as high operating expense and reduced efficiency over time due to membrane fouling. To solve this issue, frequent cleaning with physical and chem...

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Autores principales:	Thien An Huynh, Maryam Raeisi, Meik B. Franke, Edwin Zondervan
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/a716c62961844159aeb5ed063b67c68e
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spelling	oai:doaj.org-article:a716c62961844159aeb5ed063b67c68e2021-11-15T21:47:33ZNovel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors10.3303/CET21881472283-9216https://doaj.org/article/a716c62961844159aeb5ed063b67c68e2021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11940https://doaj.org/toc/2283-9216A membrane reactor produces high-quality biodiesel by combining both reaction and separation in a single unit. However, the reactor has disadvantages such as high operating expense and reduced efficiency over time due to membrane fouling. To solve this issue, frequent cleaning with physical and chemical methods is required. Membrane cleaning contributes to the reactor’s operating cost to a large extent, including energy, chemicals and even production loss. Although there have been studies undertaken focusing on improving membrane cleaning, optimizing the performance of the membrane reactor in biodiesel production has received limited attention. In this work, a novel membrane cleaning model is presented and used to optimize the membrane reactor efficiency in terms of biodiesel yield and cleaning costs. The model captures the dynamic states of reversible and irreversible membrane fouling during the cleaning process. It is further used to evaluate the effects of backwashing and chemical cleaning on the membrane reactor. The results show that the number of backwashes during operation is a crucial factor to improve reactor productivity and reduce the cleaning cost. The membrane reactor’s operating time rose 2 to 3 times when the operating period between two backwashes, or an operating cycle, reduced from 70 min to 15 min. The biodiesel yield increased significantly due to the extended operation. However, longer operating time led to an accumulation of more irreversible fouling, which could not be removed by backwashing. The cost of chemical cleaning rose as the irreversible fouling level increased. Regarding the cost-to-yield ratio of the biodiesel reactor, the best operating conditions were found at the operating cycle of 25 minutes between 2 backwashes. Overall, the cleaning model allows the prediction and reduction of the cleaning expense of the membrane reactor, increasing its potential as a biodiesel production technology significantly.Thien An HuynhMaryam RaeisiMeik B. FrankeEdwin ZondervanAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Thien An Huynh Maryam Raeisi Meik B. Franke Edwin Zondervan Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors
description	A membrane reactor produces high-quality biodiesel by combining both reaction and separation in a single unit. However, the reactor has disadvantages such as high operating expense and reduced efficiency over time due to membrane fouling. To solve this issue, frequent cleaning with physical and chemical methods is required. Membrane cleaning contributes to the reactor’s operating cost to a large extent, including energy, chemicals and even production loss. Although there have been studies undertaken focusing on improving membrane cleaning, optimizing the performance of the membrane reactor in biodiesel production has received limited attention. In this work, a novel membrane cleaning model is presented and used to optimize the membrane reactor efficiency in terms of biodiesel yield and cleaning costs. The model captures the dynamic states of reversible and irreversible membrane fouling during the cleaning process. It is further used to evaluate the effects of backwashing and chemical cleaning on the membrane reactor. The results show that the number of backwashes during operation is a crucial factor to improve reactor productivity and reduce the cleaning cost. The membrane reactor’s operating time rose 2 to 3 times when the operating period between two backwashes, or an operating cycle, reduced from 70 min to 15 min. The biodiesel yield increased significantly due to the extended operation. However, longer operating time led to an accumulation of more irreversible fouling, which could not be removed by backwashing. The cost of chemical cleaning rose as the irreversible fouling level increased. Regarding the cost-to-yield ratio of the biodiesel reactor, the best operating conditions were found at the operating cycle of 25 minutes between 2 backwashes. Overall, the cleaning model allows the prediction and reduction of the cleaning expense of the membrane reactor, increasing its potential as a biodiesel production technology significantly.
format	article
author	Thien An Huynh Maryam Raeisi Meik B. Franke Edwin Zondervan
author_facet	Thien An Huynh Maryam Raeisi Meik B. Franke Edwin Zondervan
author_sort	Thien An Huynh
title	Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors
title_short	Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors
title_full	Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors
title_fullStr	Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors
title_full_unstemmed	Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors
title_sort	novel dynamic cleaning model for cyclic operation of biodiesel membrane reactors
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/a716c62961844159aeb5ed063b67c68e
work_keys_str_mv	AT thienanhuynh noveldynamiccleaningmodelforcyclicoperationofbiodieselmembranereactors AT maryamraeisi noveldynamiccleaningmodelforcyclicoperationofbiodieselmembranereactors AT meikbfranke noveldynamiccleaningmodelforcyclicoperationofbiodieselmembranereactors AT edwinzondervan noveldynamiccleaningmodelforcyclicoperationofbiodieselmembranereactors
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Novel Dynamic Cleaning Model for Cyclic Operation of Biodiesel Membrane Reactors

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