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Nanofiltration at elevated temperatures - An analysis of performance and economics

Lipnizki, Frank LU ; Trägårdh, Gun LU and Östergren, Karin LU (2007) The Third Membrane Science and Technology Conference of Visegrad Countries (PERMEA)
Abstract
Nanofiltration is nowadays established in many industries for the separation and purification of aqueous solutions. The maximum operating temperature of commercial nanofiltration membrane is often given with 50 – 60 ºC based on the three-layer structure of membranes consisting of a polyester or polypropylene support paper with a polysulphone support layer and an active layer of polyamide. Operating nanofiltration at high process temperature close the limits of the membrane can have a significant impact on the performance of the membranes. This change in performance with increasing temperature divided into: (1) changes of active layer of the membrane and (2) changes related to the feed solution such decrease in viscosity, change in... (More)
Nanofiltration is nowadays established in many industries for the separation and purification of aqueous solutions. The maximum operating temperature of commercial nanofiltration membrane is often given with 50 – 60 ºC based on the three-layer structure of membranes consisting of a polyester or polypropylene support paper with a polysulphone support layer and an active layer of polyamide. Operating nanofiltration at high process temperature close the limits of the membrane can have a significant impact on the performance of the membranes. This change in performance with increasing temperature divided into: (1) changes of active layer of the membrane and (2) changes related to the feed solution such decrease in viscosity, change in fouling potential etc. The aim of this paper is to study the performance and thus the impact on the process economics when operating nanofiltration at the boundaries of the temperature range at 55°C in contrast to operating it at ambient temperature of 25°C. (Less)
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publishing date
type
Contribution to conference
publication status
published
subject
keywords
Membrane separation, Food technology, Nanofiltration
conference name
The Third Membrane Science and Technology Conference of Visegrad Countries (PERMEA)
conference location
Siofok, Hungary
conference dates
2007-09-02 - 2007-09-06
language
English
LU publication?
yes
id
0a3ace5e-6873-4393-b885-faba142798f4
date added to LUP
2018-10-18 16:35:39
date last changed
2019-03-08 02:29:47
@misc{0a3ace5e-6873-4393-b885-faba142798f4,
  abstract     = {Nanofiltration is nowadays established in many industries for the separation and purification of aqueous solutions.  The maximum operating temperature of commercial nanofiltration membrane is often given with 50 – 60 ºC based on the three-layer structure of membranes consisting of a polyester or polypropylene support paper with a polysulphone support layer and an active layer of polyamide.  Operating nanofiltration at high process temperature close the limits of the membrane can have a significant impact on the performance of the membranes. This change in performance with increasing temperature divided into: (1) changes of active layer of the membrane and (2) changes related to the feed solution such decrease in viscosity, change in fouling potential etc. The aim of this paper is to study the performance and thus the impact on the process economics when operating nanofiltration at the boundaries of the temperature range at 55°C in contrast to operating it at ambient temperature of 25°C.},
  author       = {Lipnizki, Frank and Trägårdh, Gun and Östergren, Karin},
  language     = {eng},
  title        = {Nanofiltration at elevated temperatures - An analysis of performance and economics},
  year         = {2007},
}