Lampung natural zeolite filled cellulose acetate membrane for pervaporation of ethanol-water mixtures

2nd International Conference on Biomass: Toward Sustainable Biomass Utilization for Industrial and Energy Applications

生物科学;工业技术;能源学

Iryani, D.A.^1,3 ; Wulandari, N.F.^1 ; Cindradewi, A.W.^1 ; Ginting, S. Br.^1,3 ; Ernawati, E.^2 ; Hasanudin, U.^3,4

Department of Chemical Engineering, Engineering Faculty, University of Lampung, Indonesia^1

Department of Chemistry, Mathemathic and Science, University of Padjajaran Bandung, Indonesia^2

Research and Development Center for Tropical Biomass, University of Lampung, Indonesia^3

Department of Agroindustrial Technology, Agriculture Faculty, University of Lampung, Indonesia^4

关键词: Cellulose acetate membrane;    Cellulose acetates;    Ethanol concentrations;    Ethanol water mixtures;    Natural zeolites;    Pervaporation membranes;    Pervaporation performance;    Pervaporation separation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/141/1/012013/pdf
DOI  :  10.1088/1755-1315/141/1/012013

来源: IOP

【 摘 要 】

Pervaporation of ethanol-water can be cost-competitive in the production of renewable biomass ethanol. For the purpose of improving the pervaporation performance of polymeric membranes, we prepared cellulose acetate (CA) filled Lampung Natural Zeolite (LNZ) membranes by incorporating LNZ into CA for pervaporation separation of ethanol-water mixtures. The characteristics and performance of these filled membranes in the varied ratio of CA:LNZ (30:0, 30:5, 30:10, 30: 20, 20:20 and 40:10) wt% were investigated. The prepared membranes were characterized for pervaporation membrane performance such as %water content and membrane swelling degree. Further, the permeation flux and selectivity of membrane were also observed. The results of investigation show that water content of membrane tends to increase with increase of LNZ content. However, the swelling degree of membrane decrease compared than that of CA control membrane. The permeation flux and the selectivity of membranes tend to increase continuously. The CA membrane with ratio of CA:LNZ 30:20 shows the highest selectivity of 80.42 with a permeation flux of 0.986 kg/(m2h) and ethanol concentration of 99.08 wt%.