شماره ركورد كنفرانس :
5048
عنوان مقاله :
Evaluation of Different Polymeric Membranes Performances in Microfiltration of Rough Non-Alcoholic Beer
Author/Authors :
M ،Yazdanshenas Department of Chemical Engineering - Sahand University of Technology - Tabriz, Iran , A ،Tavakkoli Department of Polymer Engineering - Sahand University of Technology - Tabriz, Iran , A. A ،Babaluo Department of Chemical Engineering - Sahand University of Technology - Tabriz, Iran , S. A. R ،Tabatabaee Nezhad Department of Chemical Engineering - Sahand University of Technology - Tabriz, Iran , M ،Soltanieh Department of Chemical and PetroleumEngineering of Sharif University of Technology - Tehran, Iran , L ،Fillaudeau Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés - Toulouse, France
كليدواژه :
Clarification , Non-alcoholic beer , Polymeric Membranes , Pore size , Trans-membrane pressure
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
The clarification of rough non-alcoholic beer (RNAB) constitutes a scientific and technical challenges for brewing
industry as an alternative to conventional filtration with filter-aid. In this work, an experimental pilot plant has been
utilized for evaluating the permeability and selectivity of polymeric membranes in clarification of RNAB. Celulose
acetate (CA), celulose nitrate (CN) and PTFE with pore sizes of 0.45, 0.8 and 1.2 μm and nylon (NY) with pore size of
0.65 μm have been used as polymeric membranes in two trans-membrane pressures (TMP) of 1.0 and 2.0 bar. The
fluxes of the CA, CN and NY membranes are almost the same at TMP 1.0 bar but they show different behaviour at
TMP of 2.0 bar in favour of biger pore sizes. Even though the permeability of CA and CN membranes with pore sizes
of 0.45 μm remained almost unchanged at two different TMP, this kind of membranes have the best rejection for haze
active proteins and suspended particles. The inferior selectivity of PTFE membranes can be corresponded to its
hydrophobicity and less interaction with hydrophilic haze active proteins. The obtained results confirmed that by
increasing pore size of CA membranes, separation factor of the sensitive proteins and suspended particles decreases and
the membranes permeability increases dramatically.
