Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Adsorption behavior of levulinic acid onto microporous hyper-cross-linked polymers in aqueous solution: Equilibrium, thermodynamic, kinetic simulation and fixed-bed column studies | |
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
| |
| 2017-03-01 | |
| Source Publication | CHEMOSPHERE
 |
| Volume | 171Pages:231-239 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | Levulinic Acid Adsorption Isotherm Kinetics Simulation Fixed-bed Column |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.chemosphere.2016.12.084 |
| WOS Subject Extended | Environmental Sciences & Ecology |
| WOS Keyword | ANION-EXCHANGE RESIN ; WASTE-WATER ; ACTIVATED CARBON ; REMOVAL ; ADSORBENTS ; BUTANOL ; SUBSTITUTES ; PERFORMANCE ; BIOBUTANOL ; SEPARATION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Organization | 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) |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000393931100027 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/14040 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment