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Cai J, Shi J, Zhang J, Miao X, Wang S, Xiao L, Liu D, Hou L. Preparation of Guanidine-Grafted NH 2-MIL-101(Fe)/Polyvinylidene Fluoride Mixed Matrix Membranes for Adsorption of Pb 2+ for Isopropanol Purification. Inorg Chem 2024. [PMID: 39228221 DOI: 10.1021/acs.inorgchem.4c03034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
Electronic-grade isopropyl alcohol is widely utilized in the cleaning of semiconductors and microelectronic components. Removing ions like Pb2+ is crucial since the presence of impurities may cause degradation of electronics, increased failure rates, and short circuits. Membrane materials offer a number of advantages in the field of adsorption separation; however, the lack of adsorption sites results in limited adsorption capacity. In the current work, guanidino-grafted NH2-MIL-101(Fe) was incorporated into polyvinylidene fluoride (PVDF) to prepare MOF/PVDF mixed matrix membranes (NM/PVDF) for the removal of Pb2+ from isopropanol. Benefiting from the larger specific surface area and more lone electron pairs in the guanidine group, the Pb2+ adsorption capacity of the as-prepared NM/PVDF membrane was 29.4458 mg/g, which was higher than that of the NH2-MIL-101(Fe)/PVDF membrane (20.9306 mg/g) and the pure PVDF membrane (6.7324 mg/g). The NM/PVDF membrane was able to reduce the concentration of Pb2+ from 500 to 86.73 ppb. This work highlights the potential of guanidine-grafted Fe-based MOFs/PVDF membranes as adsorbents for acquisition of electronic-grade solvents.
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Affiliation(s)
- Jingyu Cai
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
- Qingyuan Innovation Laboratory, Quanzhou 362801, China
| | - Junjie Shi
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Jian Zhang
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Xiaoyu Miao
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Sen Wang
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Longqiang Xiao
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
- Qingyuan Innovation Laboratory, Quanzhou 362801, China
| | - Dan Liu
- College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Linxi Hou
- Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
- Qingyuan Innovation Laboratory, Quanzhou 362801, China
- Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals, Fuzhou University, Fuzhou 350116, China
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Hu Y, Wang L, Lu J, Ding L, Zhang G, Zhang Z, Tang J, Cui M, Chen X, Qiao X. Novel Reactive Distillation Process for Cyclohexyl Acetate Production: Design, Optimization, and Control. ACS OMEGA 2023; 8:13192-13201. [PMID: 37065013 PMCID: PMC10099445 DOI: 10.1021/acsomega.3c00469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
A side-reactor column (SRC) configuration, comprising a vacuum column coupled with atmospheric side reactors, is proposed to overcome the thermodynamic restriction in the esterification of cyclohexene with acetic acid to produce cyclohexyl acetate. Meantime, this configuration can avoid the utilization of the high-pressure steam and provide enough zone for catalyst loading. In order to obtain the minimum total annual cost (TAC), the process is optimized by a mixed-integer nonlinear programming optimization method based on the improved bat algorithm. The results indicate that the optimized SRC configuration saves about 44.81% of the TAC compared to the reactive distillation process. Based on the optimized SRC process, dynamic control is carried out. The dual-point temperature and temperature-composition control structures are proposed to reject throughput and feed composition disturbances. The dynamic performances demonstrate that the temperature-composition control structure is better in maintaining product purity.
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Affiliation(s)
- Yabo Hu
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Le Wang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jiawei Lu
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Lianghui Ding
- School
of Environmental Engineering, Nanjing Institute
of Technology, Nanjing, Jiangsu 211167, China
| | - Guowen Zhang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Zhuxiu Zhang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jihai Tang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Mifen Cui
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Xian Chen
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Xu Qiao
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
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Lee A, Naquash A, Lee M, Chaniago YD, Lim H. Exploitation of distillation for energy-efficient and cost-effective environmentally benign process of waste solvents recovery from semiconductor industry. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 841:156743. [PMID: 35716749 DOI: 10.1016/j.scitotenv.2022.156743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/30/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The waste solvent is unavoidably generated from the high solvent dependable processes. One of them is the semiconductor industry. The waste solvent is frequently incinerated to eliminate hazardous waste and this practice raises the issue of environmental and treatment costs. Thus, recovery of waste solvent is a substantial environmental mitigation option. This study explores the recovery of multicomponent waste solvents from the semiconductor industry. To achieve a greener and energy-efficient process, the recovery process is proposed through investigation of mixture thermodynamic behavior, process design, optimization, economics, and integration of renewable energy for environmental advantages. Herein, Distillation, a practical technology option for solvent recovery, with green solvent for extractive distillation and a new approach using renewable energy in waste solvent recovery are explored. As the result, waste solvent recovery by distillation with conventional energy exhibits bold advantages to cost and lower carbon process compared to waste disposal. The integration of renewable energy with about 37 % share of conventional energy as the backup indicates the highest annual cost-saving and reduces about 89.4 % of annual carbon emission compared to carbon emission from waste disposal.
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Affiliation(s)
- Aejin Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea
| | - Ahmad Naquash
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si 712-749, Republic of Korea
| | - Moonyong Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si 712-749, Republic of Korea
| | - Yus Donald Chaniago
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea.
| | - Hankwon Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea.
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Ushiki I, Tsuji H, Takishima S, Ito Y, Inomata H. Desorption of propylene glycol monomethyl ether acetate from activated carbon in supercritical CO2: Measurement and predictive modeling. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.105018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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