New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol

Acrylic acid (AA) is an important component for the production of acrylate polymer. In a typical acrylic manufacturing unit, waste water contains AA in a range of 4–15wt.% contributes to the high values of chemical oxygen demand. Due to the toxicity of AA to the aquatic organism, this wastewater sho...

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Main Authors:	Chin, S. Y., Mohd Amirul Asyraf, Ahmad, Muhammad Ridzuan, Kamaruzaman
Format:	Article
Language:	English
Published:	Elsevier 2014
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/8114/ http://umpir.ump.edu.my/id/eprint/8114/ http://umpir.ump.edu.my/id/eprint/8114/ http://umpir.ump.edu.my/id/eprint/8114/1/fkksa-2014-chin-New_Method_For_Acrylic.pdf

id	ump-8114
recordtype	eprints
spelling	ump-81142018-05-22T03:09:50Z http://umpir.ump.edu.my/id/eprint/8114/ New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol Chin, S. Y. Mohd Amirul Asyraf, Ahmad Muhammad Ridzuan, Kamaruzaman TP Chemical technology Acrylic acid (AA) is an important component for the production of acrylate polymer. In a typical acrylic manufacturing unit, waste water contains AA in a range of 4–15wt.% contributes to the high values of chemical oxygen demand. Due to the toxicity of AA to the aquatic organism, this wastewater should be treated before it is discharged to the environment. The waste water could be evaporated before sending to the incineration which was neither economic feasible nor environmental friendly. Esteriﬁcation of wastewater containing carboxylic acid with alcohol could be a promising method to recover the acid by converting it to ester while purifying the wastewater. In the present study, recovery of AA via esteriﬁcation with 2-ethyl hexanol (2EH) was investigated. The model industrial wastewater with various concentration of AA (10–100% w/w) was reacted with 2EH to produce 2-ethyl hexyl acrylate (2EHA) in the setups with total reﬂux and continuouslywater removal. These Amberlyst-15 (ion exchange resin) catalyzed reactions were carried out under the mass transfer resistance free region. The performance of both systems was compared. The yield for the reactions of the AA solutions with the AA concentrations of 30–80% was enhanced signiﬁcantly when the reactions were carried out using the second setup. The kinetic data of the esteriﬁcation of dilute AA was well described by the Eley–Rideal (ER) kinetic model incorporated with a correction factor to consider the catalyst fouling effect and pseudo-homogeneous (PH) kineticmodel for the AA polymerization. The ﬁndings have shown the potential of recovering AA from the waste water stream via esteriﬁcation. The concentrated AA solutions or larger amount of inhibitor should be adopted to prevent the catalyst fouling by the deposition of poly-acrylic acid on the catalyst surface. Elsevier 2014-05-27 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8114/1/fkksa-2014-chin-New_Method_For_Acrylic.pdf Chin, S. Y. and Mohd Amirul Asyraf, Ahmad and Muhammad Ridzuan, Kamaruzaman (2014) New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol. Process Safety And Environmental Protection, 92 (6). pp. 522-531. ISSN 0957-5820 http://dx.doi.org/10.1016/j.psep.2014.05.004 DOI: 10.1016/j.psep.2014.05.004
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Chin, S. Y. Mohd Amirul Asyraf, Ahmad Muhammad Ridzuan, Kamaruzaman New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol
description	Acrylic acid (AA) is an important component for the production of acrylate polymer. In a typical acrylic manufacturing unit, waste water contains AA in a range of 4–15wt.% contributes to the high values of chemical oxygen demand. Due to the toxicity of AA to the aquatic organism, this wastewater should be treated before it is discharged to the environment. The waste water could be evaporated before sending to the incineration which was neither economic feasible nor environmental friendly. Esteriﬁcation of wastewater containing carboxylic acid with alcohol could be a promising method to recover the acid by converting it to ester while purifying the wastewater. In the present study, recovery of AA via esteriﬁcation with 2-ethyl hexanol (2EH) was investigated. The model industrial wastewater with various concentration of AA (10–100% w/w) was reacted with 2EH to produce 2-ethyl hexyl acrylate (2EHA) in the setups with total reﬂux and continuouslywater removal. These Amberlyst-15 (ion exchange resin) catalyzed reactions were carried out under the mass transfer resistance free region. The performance of both systems was compared. The yield for the reactions of the AA solutions with the AA concentrations of 30–80% was enhanced signiﬁcantly when the reactions were carried out using the second setup. The kinetic data of the esteriﬁcation of dilute AA was well described by the Eley–Rideal (ER) kinetic model incorporated with a correction factor to consider the catalyst fouling effect and pseudo-homogeneous (PH) kineticmodel for the AA polymerization. The ﬁndings have shown the potential of recovering AA from the waste water stream via esteriﬁcation. The concentrated AA solutions or larger amount of inhibitor should be adopted to prevent the catalyst fouling by the deposition of poly-acrylic acid on the catalyst surface.
format	Article
author	Chin, S. Y. Mohd Amirul Asyraf, Ahmad Muhammad Ridzuan, Kamaruzaman
author_facet	Chin, S. Y. Mohd Amirul Asyraf, Ahmad Muhammad Ridzuan, Kamaruzaman
author_sort	Chin, S. Y.
title	New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol
title_short	New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol
title_full	New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol
title_fullStr	New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol
title_full_unstemmed	New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol
title_sort	new method for acrylic acid recovery from industrial waste water via esterification with 2-ethyl hexanol
publisher	Elsevier
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/8114/ http://umpir.ump.edu.my/id/eprint/8114/ http://umpir.ump.edu.my/id/eprint/8114/ http://umpir.ump.edu.my/id/eprint/8114/1/fkksa-2014-chin-New_Method_For_Acrylic.pdf
first_indexed	2023-09-18T22:05:24Z
last_indexed	2023-09-18T22:05:24Z
_version_	1777414674687459328

New Method For Acrylic Acid Recovery From Industrial Waste Water Via Esterification With 2-Ethyl Hexanol

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