Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis method for toluene adsorption

作     者：Ying Yan Peng Huang Huiping Zhang 

作者机构：School of Chemistry and Chemical EngineeringGuangdong Provincial Key Laboratory of Green Chemical Product TechnologySouth China University of TechnologyGuangzhou 510640China School of Chemical Engineering and Analytical ScienceThe University of ManchesterManchesterM139PLUK 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2019年第13卷第4期

页      面：772-783页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 

基　　金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China(Grant No.21776106) Pearl River S&T Nova Program of Guangzhou(Grant No.201610010171)for this work 

主　　题：carbon molecular sieve membrane stainless steel fibers pyrolysis structured fixed bed toluene 

摘      要：Carbon molecular sieve membrane(CMSM)/paper-like stainless steel fibers(PSSF)has been manufactured by pyrolyzing poly(fiirfuryl alcohol)(PFA)coated on the metal *** was synthesized using oxalic acid dihydrate as a catalyst and coated on microfibers by dip coating *** the purpose of investigating the effects of final carbonization temperature,the composites were carbonized between 400℃ and 800℃ under flowing *** morphology and microstructure were examined by X-ray diffraction,Fourier transforms infrared spectroscopy,scanning electron microscopy,thermogravimetric analysis,N2 adsorption and desorption,Raman spectra and X-ray photoelectron *** consequences of characterization showed that the CMSM containing mesopores o f 3.9 nm were *** specific surface area of the CMSM/PSSF fabricated in different pyrolysis temperature varies from 26.5 to 169.1 m^2·g^-1 and pore volume varies from 0.06 to 0.23 cm^3·g^-*** pyrolysis temperature exceeds 600℃,the specific surface,pore diameter and pore volume decreased as carbonization temperature ***,the degree of graphitization in carbon matrix increased with rising pyrolysis *** adsorption experiments on different structured fixed bed that was padded by CMSM/PSSF and granular activated carbon(GAC)were *** the sake of comparison,adsorption test was also performed on fixed bed packed with *** experimental results indicated that the rate constant κ′ was dramatically increased as the proportion of CMCM/PSSF composites increased on the basis of Yoon-Nelson model,which suggested that structured fixed bed padded with CMSM/PSSF composite offered higher adsorption rate and mass transfer efficiency.