Fabrication of asymmetric nanofiltration flatsheet membrane for the separation of acetic acid from xylose and glucose

Wan Hairani, Wan Na'aman and Syed Mohd Saufi, Tuan Chik and Mazrul Nizam, Abu Seman and Hafizuddin, Wan Yussof and Abdul Wahab, Mohammad (2017) Fabrication of asymmetric nanofiltration flatsheet membrane for the separation of acetic acid from xylose and glucose. Chemical Engineering Transactions, 56. pp. 1201-1206. ISSN 2283-9216. (Published)

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Abstract

Malaysia palm oil based industries generate a huge amount of lignocellulose biomass wastes. These wastes can be utilized to produce chemicals and fuel. Lignocellulose biomass consists of hemicelluloses, cellulose and lignin. Cellulose and hemicelluloses portion need to be hydrolysed to release fermentable glucose and xylose for further processing. Biomass hydrolysis using acid is a simple method, but it also produces acetic acid inhibitor that can inhibit the microorganism during fermentation. In order to increase the yield of product as well as to elevate the rate of product, there is a need to remove this acetic acid inhibitor from the biomass hydrolysate. In the current study, asymmetric nanofiltration (NF) flat sheet membrane was fabricated for acetic acid removal. Five types of asymmetric NF membranes were produced with different formulation in term of polymeric material (polysulfone (PSf) and polyethersulfone (PES)), types of solvent (N-methyl-2-pyrrolidone (NMP), tetrahydrofuran (THF), ethanol, dimethylacetamide (DMAc)), and types of additive (polyvinylpyrrolidone (PVP), polyethylene glycol (PEG)]. The best separation factor of acetic acid over glucose (1.1607) and acetic acid over xylose (1.2985) were showed by the asymmetric membrane produced from 19.6 wt% PSf/ 74.8 % DMAc/ 5.6 % ethanol and 21% PSf/ 55.3 % NMP/ 23.7 % THF.

Item Type: Article
Uncontrolled Keywords: Acetic Acid; Biomass; Glucose; Hemicelluloses; Xylose
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Dr Syed Mohd Saufi Tuan Chik
Date Deposited: 20 Mar 2018 05:40
Last Modified: 20 Mar 2018 05:40
URI: http://umpir.ump.edu.my/id/eprint/19846
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