Article
Engineering, Chemical
Chao Guo, Fuqiang Wang, Jiafu Xing, Peizhe Cui
Summary: The separation of DMC/methanol/water azeotropic mixtures has been studied using organic solvents and ionic liquids. The interaction mechanisms between the components and the entrainers were explored, and the best separation sequence and process were determined based on energy and economic comparisons. The results showed that the [BMIM][Cl]-based direct extractive distillation process was the most efficient and cost-effective method.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Carlos Alberto Torres Cantero, Ricardo Perez Zuniga, Mario Martinez Garcia, Silvia Ramos Cabral, Manuela Calixto-Rodriguez, Jorge Salvador Valdez Martinez, Mayra Guadalupe Mena Enriquez, Abraham Jashiel Perez Estrada, Gerardo Ortiz Torres, Felipe de J. Sorcia Vazquez, Azael Garcia Rebolledo, Jesse Yoe Rumbo Morales
Summary: Extractive distillation with salts allows for high concentration of ethanol, but control of the distillation column in the presence of disturbances needs to be addressed.
Article
Multidisciplinary Sciences
Zhiyuan Ruan, Shuni Li, Alexandra Grigoropoulos, Hossein Amiri, Shayna L. Hilburg, Haotian Chen, Ivan Jayapurna, Tao Jiang, Zhaoyi Gu, Alfredo Alexander-Katz, Carlos Bustamante, Haiyan Huang, Ting Xu
Summary: Proteins in biological fluids behave according to programmed interactions at the segmental level, and synthetic heteropolymers can replicate these interactions. By extracting chemical characteristics and sequential arrangements from natural proteins, heteropolymer ensembles can mimic the functions of biological fluids and be used in various applications.
Article
Engineering, Chemical
Yang Lei, Yuhang Zhou, Zhiqiang Wei, Yuqiu Chen, Fen Guo, Wei Yan
Summary: The study employs computer-aided ionic liquid design method to identify the optimal ionic liquid solvent for extractive distillation processes in the petrochemical industry, achieving good separation performance. Using [C(1)mPy][BF4] as the solvent can significantly reduce capital cost, operating cost, and total annual cost.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Fang Bai, Chao Hua, Yongzhi Bai, Mengying Ma
Summary: This study optimized the HBA and HBD ratio and molar concentration of deep eutectic solvents (DES) for use in cyclohexane and benzene extractive distillation. The results showed that a 1:2 ratio and 0.1 molar concentration were most effective, with the NRTL model providing the most accurate predictions. Stronger hydrogen bond and pi-pi bond interactions were observed with a 1:2 HBA and HBD ratio, breaking the azeotrope.
Article
Engineering, Chemical
Zhishan Zhang, Xiaoxiao Zhao, Yun Wang, Yixin Ma, Guijie Li
Summary: This study compares enhanced extractive distillation processes using ionic liquid (IL) as entrainer with conventional extractive distillation process (CED) in terms of cost, energy, and carbon emissions reductions. The results show that the heat-integrated extractive distillation configuration with [BMIM][OAC] as entrainer (EDHI-IL) is the best solution for ecological efficiency, reducing TAC, ACC, AOC, and CO2 emissions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Ethan A. Finberg, Max Cordry, Tessie L. May, Kalin R. Baca, Mark B. Shiflett
Summary: This study investigates the separation of refrigerant mixtures using extractive distillation with ionic liquid entrainers. Simulation results suggest that azeotropic refrigerant mixtures can be separated to high purity using the appropriate ionic liquid entrainers.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Yang Lei, Zhaoyang Yu, Zhiqiang Wei, Xinyan Liu, Hao Luo, Yuqiu Chen, Xiaodong Liang, Georgios M. Kontogeorgis
Summary: In the petrochemical industry, a highly energy-consuming and environmentally challenging separation of propylene/propane is addressed through the proposal of an energy-efficient extractive distillation process using a tailor-made ionic liquid solvent. The use of the optimized ionic liquid solvent results in significant energy savings and cost reduction compared to the conventional process.
Review
Engineering, Chemical
Min Li, Yue Cui, Xiaojing Shi, Zhishan Zhang, Xiaoxiao Zhao, Xiuyu Zhu, Jun Gao
Summary: This article investigates the performances of different extractive distillation processes with a dividing wall column for separating benzene-isopropanol-water ternary mixtures, and determines that the EDWC-S process is the most cost-effective and carbon-efficient solution.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Jonathan Wavomba Mtogo, Andras Jozsef Toth, Daniel Fozer, Peter Mizsey, Agnes Szanyi
Summary: The aim of process integration is to efficiently use energy and natural resources, but it may affect controllability. Pressure-swing distillation processes can be used for separating azeotropic mixtures, and their heat integration option can significantly reduce energy consumption.
Article
Engineering, Environmental
Lingqiang Yan, Jinlong Li, Qing Ye, Xue Jian, Xinhao Li, Licheng Xie, Jianyu Zhang
Summary: In this study, 1-butyl-3-methylimi-dazolium acetate ([BMIM][OAc]) was identified as a suitable entrainer for recycling isopropanol and ethyl acetate from wastewater through extractive distillation. The optimized processes with heat integration technology showed significant reductions in total cost, energy consumption, and gas emission compared to conventional extractive distillation processes.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Zhishan Zhang, Xiaoxiao Zhao, Xiuyu Zhu, Min Li, Zhun Ma, Jun Gao
Summary: Several new extractive distillation configurations using ionic liquid as extractant are proposed, with EDWC scheme being the best option due to its benefits in reducing costs and CO2 emissions as compared to conventional CED process. The optimization method used is practical for designing complex distillation systems.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Thermodynamics
Miguel Ayuso, Antonio Ovejero-Perez, Noemi Delgado-Mellado, Pablo Navarro, Marcos Larriba, Julian Garcia, Francisco Rodriguez
Summary: This study analyzed the suitability of four ionic liquids for separating cyclohexane and cyclohexene mixtures, with tetrathiocyanatocobaltate-based ionic liquids showing the highest relative volatilities and bis(trifluoromethylsulfonyl)imide-based ionic liquids being the most promising in terms of viscosity and thermal stability. The Non-Random Two Liquids (NRTL) model accurately described the experimental vapor-liquid equilibria data for the systems studied.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2021)
Article
Engineering, Chemical
Jianghui Huang, Qingjun Zhang, Chunjiang Liu, Tianle Yin, Wenyu Xiang
Summary: In this study, three different separation processes (TED, DRED, REDWC) were designed to deal with ternary systems containing multi-azeotropes. Reactive distillation was used to break the azeotropes and simplify complexity by consuming water through ethylene oxide hydration reaction. The results showed that reactive-extractive distillation can effectively achieve lower total annual costs and better environmental performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Haoran Yan, Xingchen Song, Lianghua Xu, Xigang Yuan
Summary: A new flash tank-assisted single-column extractive distillation with heavy entrainer (FT-SCED) is proposed in this paper, which can achieve high-purity light and heavy products from the overheads of column and flash tank, respectively. Two case studies show that the proposed process has lower annual total cost compared with conventional extractive distillation and extractive dividing wall column.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Darinel Valencia-Marquez, Antonio Flores-Tlacuahuac, Luis Ricardez-Sandoval
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2015)
Article
Engineering, Chemical
Darinel Valencia-Marquez, Antonio Flores-Tlacuahuac, Luis Ricardez-Sandoval
Article
Green & Sustainable Science & Technology
Darinel Valencia-Marquez, Antonio Flores-Tlacuahuac, Ruben Vasquez-Medrano
JOURNAL OF CLEANER PRODUCTION
(2017)
Article
Energy & Fuels
Darinel Valencia-Marquez, Antonio Flores-Tlacuahuac
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2020)
Article
Computer Science, Interdisciplinary Applications
Darinel Valencia-Marquez, Antonio Flores-Tlacuahuac, Alejandro J. Garcia-Cuellar, Luis Ricardez-Sandoval
Summary: This work introduces a CAMD-based approach for designing lubricants, with molecular dynamics for validation, reducing time and investment needed for designing new materials.
COMPUTERS & CHEMICAL ENGINEERING
(2022)