FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Membrane Science and Engineering. A Tribute to the Prof. Drioli’s Pioneering Vision
87
88
EN
Alfredo
Cassano
Institute on Membrane Technology, ITM-CNR, Italy
a.cassano@itn.cnr.it
Alessandra
Criscuoli
Institute on Membrane Technology, ITM-CNR, Italy
a.criscuoli@itm.cnr.it
Alberto
Figoli
0000-0002-3347-0506
Institute on Membrane Technology, ITM-CNR, Italy
a.figoli@itm.cnr.it
10.22079/jmsr.2019.34362
https://www.msrjournal.com/article_34362.html
https://www.msrjournal.com/article_34362_811de1689a7206359b1c70c13bb58c00.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Korea- Italy Workshop on Membranes: A Long Relationship and Friendship between Korea and Italy
89
89
EN
Kew-Ho
Lee
Korea Resaerch Institute of Chemical Technology
Daejeon, Korea
khlee@krict.re.kr
10.22079/jmsr.2018.89051.1201
https://www.msrjournal.com/article_34061.html
https://www.msrjournal.com/article_34061_9f64e09079081f34ee66fd2715f59ba1.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Enrico Drioli: A Professor with a Vision and an Inspirational Leader
90
91
EN
Soccorso
Gaeta
GVS SPA
sng@gvs.com
10.22079/jmsr.2019.102138.1245
https://www.msrjournal.com/article_34062.html
https://www.msrjournal.com/article_34062_58091aff75e390bfdb5d81adcbfaa89c.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
A Professional and a Gentleman: the Enrico Drioli I know
92
94
EN
Subhas
K.
Sikdar
3235 Legacy Trace
subhas.sikdar@gmail.com
10.22079/jmsr.2019.102139.1246
https://www.msrjournal.com/article_34063.html
https://www.msrjournal.com/article_34063_7cc953ec193c9809b9f21be8390779e7.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Enrico Drioli and His Life Time Love Affair with Membrane Science
95
96
EN
Heiner
Strathmann
Stuttgart University, Stuttgart, Germany
heiner.strathmann@t-online.de
10.22079/jmsr.2019.102140.1247
https://www.msrjournal.com/article_34064.html
https://www.msrjournal.com/article_34064_84d6d4a4dddf02905a3d7177a1a0499d.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Enrico Drioli and Development of Membrane Science in Russia
97
98
EN
Yuri
Yampolskii
A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991, Moscow, Russia
yampol@ips.ac.ru
10.22079/jmsr.2019.102159.1248
https://www.msrjournal.com/article_34067.html
https://www.msrjournal.com/article_34067_dddfe9bd50bf8c9f79561b070d9d33f5.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
From Lisbon to the World...
99
99
EN
Maria
Norberta
de Pinho
0000-0002-5339-1784
Departamento de Engenharia Química. Instituto Superior Técnico. Universidade de Lisboa. 1049-001 Lisboa. Portugal
marianpinho@tecnico.ulisboa.pt
10.22079/jmsr.2019.101985.1243
https://www.msrjournal.com/article_34047.html
https://www.msrjournal.com/article_34047_86ff1028f91a3239751ea62171a91f9f.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Art to use Electrospun Nanofbers/Nanofber Based Membrane in Waste Water Treatment, Chiral Separation and Desalination
100
125
EN
K. C.
Khulbe
Industrial Membrane Research Laboratory, Department of Chemical and Biological Engineering, University of Ottawa, On. K1N 6N5, Canada
khulbe@eng.uottawa.ca
T
Matsuura
Industrial Membrane Research Laboratory (IMRL), Chemical and Biological Engineering Department, University of Ottawa, On, K1N 6N5, Canada
matsuura@eng.uottaqwa.ca
10.22079/jmsr.2018.87918.1197
The technique to fabricate nanofibrous mat by electro-spinning has been known for a long time. But the attempts to use the electospun nanofiber mats, also known as electro-spun nanofiber membranes (ENMs), for filtration purposes began only recently. Among many membrane filtration processes, air cleaning by the removal of dust particles has already been commercialized and the product has been in the market for some time. On the other hand, the application of ENMs for liquid separation has a much shorter history and its commercialization has not yet been achieved. Since a large number of researches are reported in the open literature each year, its commercialization looks only a matter of time. For example, many papers are now available on the pressure driven membrane separation processes such as RO, NF, UF, MF by ENMs, and as many papers have been published on the other membrane separation processes including pervaporation, membrane distillation, forward osmosis and membrane adsorption. It is needless to say that EMFs have gained popularity within a short period due to the facile fabrication, interconnectivity and large area/volume ratio. Despite these advantages, ENMs’ pore sizes are intrinsically very large (fractions of micrometer to few micrometer), which makes modification of surface chemistry and especially reduction of the ENM pore size indispensable for wider applications of ENMs for membrane separation processes.
Electrospun nanofibers,chiral separation,Wastewater treatment,removal of heavy metals from water,membrane distillation,Desalination
https://www.msrjournal.com/article_32402.html
https://www.msrjournal.com/article_32402_3856623d394513cc466756a0bafd314f.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Techno-economic evaluation of helium recovery from natural gas; A comparison between inorganic and polymeric membrane technology
126
136
EN
May-Britt
Hagg
Department of Chemical Engineering
Norwegian University of Science and Technology
may-britt.hagg@chemeng.ntnu.no
Arne
Lindbrathen
Department of Chemical Engineering,
Norwegian University of Science and Technology
arne.lindbrathen@ntnu.no
Shamim
Haider
Department of Chemical Engineering,
Norwegian University of Science and Technology
shamim.haider@ntnu.no
Muhammad
Saeed
Electron Microscopy Laboratory at Department of Oral Biology, University of Oslo, UiO, Oslo, 0316 Norway
muhammad.saeed@odont.uio.no
10.22079/jmsr.2018.87998.1196
Natural gas produced at high pressure (50-70 bar) is the only industrial source of helium (He). A membrane separation process may offer a more efficient production system with smaller footprint and lower operational cost than conventional cryogenic system. Inorganic membranes with high mechanical strength are known to exhibit good stability at high pressure. In this work, two inorganic membranes, porous silica and carbon molecular sieve (CMS) were studied by simulation for their applicability in the He recovery process and compared against a Matrimid polymeric membrane. An in-house developed membrane simulation model (Chembrane) interfaced with Aspen HYSYS was used to simulate the membrane area and energy requirement for the He separation process. He was separated directly from a mixture containing methane (CH4) and 1-5 mole% He in the feed stream, and natural gas containing 1-5 mole% of He in a mixture of CH4 and N2. These streams were considered at 70 bar pressure and 25 °C. Single and two-stage membrane separation processes with and without recycle stream were simulated to achieve 97 mole % purity and 90% recovery of He. The simulation results showed that all three membranes can achieve required purity and recovery in a two-stage separation process. However, a recycle is required while using Matrimid membrane which adds cost and complexity to the system. The highest net present value (NPV) for silica, CMS, and Matrimid membrane was $M 2.5, 2, and 1.75 respectively when 5% He is present in feed gas and 15 years of plant life is considered.
He recovery,Membrane process,Techno-economical evaluation,Inorganic membranes
https://www.msrjournal.com/article_34099.html
https://www.msrjournal.com/article_34099_d231759c06be4a6112a569fd7b4cbf19.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Investigation of the Improvement of Energy Generation by Pressure Retarded Osmosis
137
146
EN
Endre
Nagy
0000-0002-3863-4194
Reseaarch Institute of Biomolecular and Chemical Engineering, University of Pannonia
nagy@mukki.richem.hu
Monika
Meiczinger
Research Institure of Bio-molecular and Chemical Engineering, University of Pannonia
meiczinger@mukki.richem.hu
Marta
Vitai
Research Institute of Bio-molecular and Chemical Engineering, University of Pannonia
vitai.marta@gmail.com
10.22079/jmsr.2018.88969.1200
<span class="fontstyle0">Knowing the overall solute flux and the partial fluxes expressed by every single transport layer, the membrane internal interface concentrations can separately be expressed. Both the overall transport coefcient and the driving force strongly depend, among others, on the value of the structural parameter and the water permeability. Study of the interface concentrations as a function of the membrane characteristic properties and the operation conditions shows clearly the different, individual effects of the C</span><span class="fontstyle0" style="font-size: 4pt;">m</span><span class="fontstyle0">, C</span><span class="fontstyle0" style="font-size: 4pt;">s </span><span class="fontstyle0">interface membrane concentrations (and C</span><span class="fontstyle0" style="font-size: 4pt;">sp</span><span class="fontstyle0">) on the concentration difference across the membrane active layer and thus on the process efciency. The change of the value of C</span><span class="fontstyle0" style="font-size: 4pt;">s </span><span class="fontstyle0">is much more sensitive on the membrane transport properties than that of the value of C</span><span class="fontstyle0" style="font-size: 4pt;">m</span><span class="fontstyle0">. The high value of the structural parameter essentially destroys the membrane performance accordingly efforts of the manufacturers must be focused on lowering of its value for increase of the water permeability. The membrane performance can also be improved not only by its characteristic properties, but by the operating conditions as well, e.g. by applying different solute concentrations instead of seawater-river water pair. The higher draw solute or lower feed concentrations can serve then much higher power density. The knowledge of the individual interface concentration of every single transport layer enables the user to do more deep, more precise study of the mass transfer process during pressure retarded osmosis. Finally, it is shown reasonable agreement between the measured and predicted data.</span>
Pressure retarded osmosis,Solute transport,Water transport,Interface concentrations,Improved osmotic pressure difference
https://www.msrjournal.com/article_32824.html
https://www.msrjournal.com/article_32824_0dd734c3576d3658d1aba8d07a62d6e3.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
A Study on Neodymium Recovery from Aqueous Solutions for Designing a New Generation of Sandwich Liquid Membrane
147
156
EN
Pietro
Argurio
0000-0002-5656-4986
Department of Environmental and Chemical Engineering, University of Calabria, Via P. Bucci, cubo 41/a
pietro.argurio@unical.it
Antonio
Tagarelli
0000-0002-8811-1631
Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Italy
a.tagarelli@unical.it
Raffaele
Molinari
0000-0001-9627-0969
Department of Environmental and Chemical Engineering, University of Calabria
raffaele.molinari@unical.it
10.22079/jmsr.2018.93621.1214
<span class="fontstyle0">Liquid Membrane (LM) based processes, as Supported Liquid Membranes (SLMs), have been proposed, for over 30 years, as effective methods for the selective separation of inorganic/organic species from different water streams. The industrial use of SLMs has been limited mainly by their insufcient stability. To investigate on the main cause of system destabilization and the optimal conditions for mass transport, a good reference system is the traditional SLM. To this aim the recovery of neodymium (Nd) from acidic media by a traditional SLM has been studied, giving particular attention to permeation and stability. The results clearly evidenced that system stability was strongly influenced by the solubilization of the carrier in the aqueous phases. The consideration and the experimental results reported in this work give useful information to shift the next research step versus the development of a 2</span><span class="fontstyle0" style="font-size: 4pt;">nd </span><span class="fontstyle0">generation of SwLM able to give satisfactory system performance in view of industrial application, such as Nd as well as rare earth elements or salt recovery from aqueous media.</span>
Neodymium recovery,Supported Liquid Membranes,Liquid Membrane solubilization,Sandwich Liquid Membranes
https://www.msrjournal.com/article_32799.html
https://www.msrjournal.com/article_32799_c01b8b02f5156e16c3df1bb9f271fd2b.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
New Polymer Catalytic Membranes for Nitrite Reduction: Experimental Assessment
157
164
EN
Miguel
Guate
Chemical and Biomolecular Engineering Department, University of Cantabria, Santander, Spain
miguel.guate@unican.es
Alfredo
Ortiz
Chemical and Biomolecular Engineering Department, University of Cantabria, Santander, Spain
alfredo.ortizsainz@unican.es
Inmaculada
Ortiz
Department of Chemical &amp; Biomolecular Engineering, University of Cantabria, Santander, Spain
inmaculada.ortiz@unican.es
10.22079/jmsr.2018.93546.1213
In this work we report the experimental assessment of the performance of a new catalytic hollow fiber reactor with supported Pd catalyst for nitrite removal from polluted waters. The reactor configuration facilitates working at low flowrate and hydrogen concentrations in order to improve the selectivity of the reduction reaction towards nitrogen, thus, inhibiting the formation of ammonia. Pd catalyst was supported on propylene and polyethersulfone hollow fibers following a simple impregnation method; the stability of the supported catalyst was checked along the operation time. Experiments of nitrite reduction were carried out in the range of 0.075-1 bar of H2 partial pressure, 0.3-0.4 bar of CO2 partial pressure, 200-400 mL/min of water flowrate and 20-200 mL/min of gas flowrate with an initial nitrite concentration of 150 mg/L. Under the experimental conditions a selectivity to N2 close to 90% with 80% conversion of nitrites was achieved.
Nitrite reduction,Hollow Fiber,Polypropylene,Nitrogen selectivity
https://www.msrjournal.com/article_32936.html
https://www.msrjournal.com/article_32936_e4b5c8a1bd0f8450213ce420a157cc2e.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Gas Selective Properties of Poly(4-Methyl-1-Pentene) Modifed by Gas Phase Fluorination
165
171
EN
Svetlana
Yu
Markova
A. V. Topchiev Institute of Petrochemical Synthesis RAS, Moscow, Russia
markova@ips.ac.ru
Vladimir
V
Tepliakov
Topchiev Institute of Petrochemical Synthesis RAS
tepl@ips.ac.ru
10.22079/jmsr.2018.93171.1211
<span class="fontstyle0">Fluorine-containing polymers have a number of valuable physical and chemical properties, such as high chemical and heat resistance, high mechanical strength and highly selective gas separation characteristics. One of the ways to produce fluoropolymer membranes is through surface fluorination. The modifcation of commercial polymers with membrane properties, poly(4-methyl-1-pentene) (PMP) in particular, is of special interest. PMP is widely used in the creation of protective coatings in microelectronics and it is used in membrane oxygenation. This paper presents new results for the gas-phase fluorination of PMP flms with improved gas separation characteristics. The fluorination is confrmed by infrared (IR) spectroscopy. It is shown that such modifcation of PMP under “soft” conditions leads to an increase in the ideal selectivity of He/CH</span><span class="fontstyle0" style="font-size: 4pt;">4 </span><span class="fontstyle0">and CO</span><span class="fontstyle0" style="font-size: 4pt;">2</span><span class="fontstyle0">/CH</span><span class="fontstyle0" style="font-size: 4pt;">4 </span><span class="fontstyle0">by up to 2.0 and 4.3 times, respectively, which is in contrast to data described in the available literature. Gas separation properties of PMP flms were monitored for 22 months. It is shown that the permeability coefcients of CO</span><span class="fontstyle0" style="font-size: 4pt;">2 </span><span class="fontstyle0">and CH</span><span class="fontstyle0" style="font-size: 4pt;">4 </span><span class="fontstyle0">after 5 months decrease by 2.7 and 6.0 times, respectively, and then return to values below those for virgin PMP flms. The permeability coefcients of He pass through a minimum as well and then return at values higher than the initial ones. The permeability of C</span><span class="fontstyle0" style="font-size: 4pt;">1</span><span class="fontstyle0">-C</span><span class="fontstyle0" style="font-size: 4pt;">4 </span><span class="fontstyle0">alkanes in fluorinated PMP was estimated by using the correlation approach. It is shown that modifed PMP has a practical application in the separation of the He from natural gas and for the separation of lower hydrocarbons as its components.</span>
Poly(4-methyl-1-pentene),Fluorination,Gas permeability,Stability with time
https://www.msrjournal.com/article_33159.html
https://www.msrjournal.com/article_33159_9da8ca2a147e8074ec5cc2b2b8e599e2.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Optimization of Cheese Whey Ultrafltration/Diafltration for the Production of Beverage Liquid Protein Concentrates with Lactose Partially Removed
172
177
EN
Sofia
Ramos
Cabral
CeFEMA/Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
sofiarcabral@gmail.com
Beatriz
Brito
de Azevedo
CeFEMA/Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
bia_monjardino@hotmail.com
Miguel
Pereira da Silva
CeFEMA/Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
miguel.pereira.da.silva@tecnico.ulisboa.pt
Ana Sofia
Figueiredo
CeFEMA/Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal;
Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
asofia@deq.isel.ipl.pt
António
Louro Martins
Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Oeiras, Portugal
pedro.louro@iniav.pt
Maria
de Pinho
0000-0002-5339-1784
CeFEMA/Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
marianpinho@tecnico.ulisboa.pt
10.22079/jmsr.2018.92367.1208
The processing of cheese whey pre-concentrated by reverse osmosis is carried out through ultrafiltration in diafiltration mode to produce whey protein concentrates with lower lactose content to be incorporated in beverages. The initial cheese whey protein and lactose contents are 2.13g/100g and 13.22g/100g, respectively.<br />The commercial membranes, GR95PP, supplied by Alfa Laval, Denmark, were characterized in terms of a hydraulic permeability of 1.21 l/(h∙m^2∙bar) and a molecular weight cut-off of 7500 Dalton. The permeation tests were carried out in a plate and frame Lab-Unit 20 from Alfa Laval, Denmark, and a membrane surface area of 0.072 m2 was installed.<br />The ultrafiltration of cheese whey in total recirculation mode yielded two asymptotic variations of the permeate fluxes versus the transmembrane pressure. For operating pressures up to 12 bar the permeate flux increases linearly with the pressure. Then, with the increasing pressure, they deviate from linearity and reach a limiting flux of 8.79 l/(h∙m^2∙bar) at 30 bar. The slope of the asymptotic linear variation is 0.48 l/(h∙m^2∙bar). To have minimal effects of concentration polarization the operating pressure was set-up at 12 bar.<br />The optimization of ultrafiltration/diafiltration was carried out in terms of the volumetric concentration factors and the frequency of diavolumes addition. At a volumetric concentration factor of 1.32 the lactose content decreased from 13.22% to 5.7%.
Pre-concentrated Cheese Whey,Ultrafiltration in Diafiltration mode,Protein Concentrates,Lactose Removal
https://www.msrjournal.com/article_33511.html
https://www.msrjournal.com/article_33511_02224538ef1bf9f80d9bf297752ed23d.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Advanced Dynamic Simulation of Membrane Desalination Modules Accounting for Organic Fouling
178
186
EN
Anastasios
J.
Karabelas
- Laboratory of Natural Resources &amp; Renewable Energies
- Chemical Process &amp; Energy Resources Institute
- Centre for Research &amp; Technology - Hellas
karabaj@cperi.certh.gr
Margaritis
Kostoglou
Division of Chemical Technology, Department of Chemistry,
Aristotle University of Thessaloniki, Greece
kostoglu@chem.auth.gr
Chrysafenia
P
Koutsou
Chemical Process and Energy Resources Institute,
Centre for Research and Technology – Hellas, Thermi, Thessaloniki, Greece
ckoutsou@cperi.certh.gr
10.22079/jmsr.2019.94172.1216
<span class="fontstyle0">A reliable dynamic simulator (based on a sound process model) is highly desirable for optimizing the performance of individual membrane modules and of entire desalination plants. This paper reports on progress toward development of a comprehensive model of the complicated physical-chemical processes occurring in spiral wound membrane (SWM) modules, that accounts for the temporal system variability caused by organic membrane fouling. To render the mathematical modeling-problem tractable, justifed simplifcations (retaining the physical parameter interdependencies) lead to a system of basic equations in two spatial planar coordinates, enabling to obtain a realistic temporal evolution of all process parameters at retentate and permeate flow channels of SWM modules. The developed flexible model structure, and process simulator, allow incorporation of sub-models (for phenomena occurring at small spatial scales during desalination) that account for a) feed-spacer effects on friction losses and mass transfer and b) membrane fouling. These sub-models, in the form of generalized expressions, are obtained for the former case through advanced numerical simulations, and for the latter by correlating experimental data of specifc fouling resistance with permeation flux. Typical parametric study results presented herein, for realistic combinations of design and operating system parameters, demonstrate the versatility and reliability of the new model/simulator and its potential to analyze the complicated interaction of mechanisms involved during fouling evolution. The new results warrant further model development that would include other types of fouling and scaling, thus leading to a comprehensive simulator useful for practical applications.</span>
Desalination,Reverse osmosis,Spiral wound membranes,Mathematical modeling,Organic fouling,Dynamic simulation
https://www.msrjournal.com/article_33957.html
https://www.msrjournal.com/article_33957_d5571e4b73ede565973b4403bd77ce05.pdf
FIMTEC & MPRL
Journal of Membrane Science and Research
2476-5406
5
2
2019
04
01
Enzyme-Mediated Extraction of Limonene, Linalool and Linalyl Acetate from Bergamot Peel Oil by Pervaporation
187
193
EN
Francesco
Galiano
Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy
f.galiano@itm.cnr.it
Alessandro
Mecchia
Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy
marc_lenders@yahoo.it
Roberto
Castro-Muñoz
Institute on Membrane Technology National Research Council, ITM-CNR, Via P. Bucci 17/C, 87036 Rende (CS), Italy
food.biotechnology88@gmail.com
Antonio
Tagarelli
Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci Cubo 12/C, I-87030, Arcavacata di Rende, CS, Italy
antonio.tagarelli@unical.it
Roberto
Lavecchia
3Dipartimento di Ingegneria Chimica, Materiali, Ambiente, Università degli studi di Roma “La Sapienza, Piazzale Aldo Moro 4, 00185, Roma, Italy
roberto.lavecchia@uniroma1.it
Alfredo
Cassano
Institute on Membrane Technology, ITM-CNR
a.cassano@itm.cnr.it
Alberto
Figoli
0000-0002-3347-0506
Institute on Membrane Technology, ITM-CNR
a.figoli@itm.cnr.it
10.22079/jmsr.2018.95080.1221
<span class="fontstyle0">Bergamot peel oil is highly attractive for food and pharmaceutical industries due to its content of valuable essential oil, which is enriched with high-added valuable compounds, such as limonene, linalool and linalyl acetate. Nevertheless, there are some limitations for the separation of such compounds. In this framework, pervaporation (PV) technology was proposed as a tool for the separation of limonene, linalool, and linalyl acetate from bergamot oil by using two different commercial organophilic membranes (PDMS-1070 and POMSPEI). The use of an enzymatic pre-treatment was also investigated in order to enhance the performance of selected membranes. All PV experiments were carried out at different temperatures (ranging from 25-40 ºC) in order to analyze the temperature dependence by the Arrhenius relationship. Experimental data indicated that both investigated membranes did not present signifcant differences in terms of enrichment factor, independently from the enzymatic pre-treatment (at 25 ºC). However, the enrichment factors increased signifcantly at 40°C when enzymes were applied. The experimental results clearly indicate that PV is a viable approach for the recovery of such aroma solutes from bergamot peel oils as it yields good separations under mild operating conditions. The efciency of the pervaporative process is indeed enhanced if assisted by an enzymatic treatment.</span>
Pervaporation (PV),Limonene,Linalool,Linalyl acetate,Bergamot peel oil,Enzyme-mediated extraction
https://www.msrjournal.com/article_32937.html
https://www.msrjournal.com/article_32937_d241d6ef07dd37eb7103bbcf3950be3f.pdf