Screening Cellulose Spinning Parameters for Fabrication of Novel Carbon Hollow Fiber Membranes for Gas Separation

Linfeng Lei, Arne Lindbråthen, Magne Hillestad*, Marius Sandru, Evangelos P. Favvas, Xuezhong He

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Novel carbon hollow fiber membranes (CHFMs) have been, for the first time, prepared from cellulose precursors directly spun with a cellulose/(1-ethyl-3-methylimidazolium acetate (EmimAc) + dimethyl sulfoxide (DMSO)) system. The spinning parameters such as air gap, dope and bore flow, bore fluid composition, and take-up speed are investigated by a factorial design method to screen hollow fiber precursors. All the precursors were carbonized using the same controlled protocol, and the prepared CHFMs show good performance that are above the Robeson upper bounds of CO2/CH4 and O2/N2. The best obtained CHFMs shows a CO2 permeability of 239 barrer and a CO2/CH4 selectivity of 186 from single gas permeation measurement. The CHFM shows attractive CO2/CH4 selectivities of 75 and 50 from 10% CO2/90% CH4 permeation tests at 25 °C with a feed pressure of 28 bar, and at 60 °C with 8 bar, respectively. Thus, the developed cellulose-based CHFMs show potential for gas separation.

Original languageEnglish
Pages (from-to)13330-13339
Number of pages10
JournalIndustrial & Engineering Chemistry Research
Volume58
Issue number29
DOIs
StatePublished - 24 Jul 2019

Fingerprint Dive into the research topics of 'Screening Cellulose Spinning Parameters for Fabrication of Novel Carbon Hollow Fiber Membranes for Gas Separation'. Together they form a unique fingerprint.

Cite this