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Adsorption behavior of levulinic acid onto microporous hyper-cross-linked polymers in aqueous solution: Equilibrium, thermodynamic, kinetic simulation and fixed-bed column studies

文献类型：期刊论文

作者Lin, Xiaoqing1,2,3; Huang, Qianlin2,4; Qi, Gaoxiang2,4; Xiong, Lian1,2,3; Huang, Chao1,2,3; Chen, Xuefang1,2,3; Li, Hailong1,2,3; Chen, Xinde1,2,3
刊名CHEMOSPHERE
出版日期2017-03-01
卷号171页码:231-239
关键词Levulinic Acid Adsorption Isotherm Kinetics Simulation Fixed-bed Column
DOI10.1016/j.chemosphere.2016.12.084
文献子类Article
英文摘要The recovery of levulinic acid (LA) from aqueous solution and actual biomass hydrolysate by a micro porous hyper-cross-linked polymer, SY-Ol, was investigated for the first time under batch and fixed-bed column conditions. The results showed that the optimum pH should be in the acidic range (pH<3.0) without adjusting the pH. In the single-component system equilibrium study, the Langmuir isotherm model fits the LA adsorption onto SY-01 resin better than the Freundlich isotherm model, indicating that LA adsorption onto SY-01 resin under the concentration range studied is a monolayer homogeneous adsorption process. The maximum adsorption capacity of LA onto SY-01 resin decreased with increasing temperature, ranging from 103.74 to 95.70 mg/g. The obtained thermodynamic parameters suggested that the adsorption of LA on SY-Ol was spontaneous (Delta G(0) <-3.788 kJ/mol), and exothermic (Delta H-0 = -11.764 kJ/mol). For kinetic study, the adsorption of LA onto SY-Ol resin at various operating conditions follows the pore diffusion model and the intraparticle diffusion is the rate-limiting step for the adsorption of LA onto SY-01 resin. The effective pore diffusivity was dependent upon temperature, but independent of initial LA concentration, and were 3.306x10(-10), 5.274x10(-10) and 7.707x10(-10) m(2)/ s at 298, 318 and 338 K, respectively. In desorption process, the recovery efficiency of LA from SY-Ol resin was 99.39%, and LA concentration in the eluent was raised 2.97-fold. In conclusion, our results show that the SY-01 resin has potential application in product recovery of LA from biomass hydrolysate. (C) 2016 Elsevier Ltd. All rights reserved.
WOS关键词ANION-EXCHANGE RESIN ; WASTE-WATER ; ACTIVATED CARBON ; REMOVAL ; ADSORBENTS ; BUTANOL ; SUBSTITUTES ; PERFORMANCE ; BIOBUTANOL ; SEPARATION
语种英语
WOS记录号WOS:000393931100027
资助机构Science and Technology Planning Project of Guangdong Province, China(2016A010104009 ; Project of National Natural Science Foundation of China(51508547 ; Project of Guangzhou Science and Technology(201610010014) ; Youth Innovation Promotion Association, Chinese Academy of Sciences(2015290) ; Project of Natural Science Foundation of Guangdong Province(2016A030310124) ; Foundation of Director of Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences(y407r41001) ; 2016A010105016) ; 21606229 ; 31600475)
源URL[http://ir.giec.ac.cn/handle/344007/14040]  
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
3.Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Xiaoqing,Huang, Qianlin,Qi, Gaoxiang,et al. Adsorption behavior of levulinic acid onto microporous hyper-cross-linked polymers in aqueous solution: Equilibrium, thermodynamic, kinetic simulation and fixed-bed column studies[J]. CHEMOSPHERE,2017,171:231-239.
APA Lin, Xiaoqing.,Huang, Qianlin.,Qi, Gaoxiang.,Xiong, Lian.,Huang, Chao.,...&Chen, Xinde.(2017).Adsorption behavior of levulinic acid onto microporous hyper-cross-linked polymers in aqueous solution: Equilibrium, thermodynamic, kinetic simulation and fixed-bed column studies.CHEMOSPHERE,171,231-239.
MLA Lin, Xiaoqing,et al."Adsorption behavior of levulinic acid onto microporous hyper-cross-linked polymers in aqueous solution: Equilibrium, thermodynamic, kinetic simulation and fixed-bed column studies".CHEMOSPHERE 171(2017):231-239.

入库方式： OAI收割

来源：广州能源研究所

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