Article
Chemistry, Multidisciplinary
Anurag Noonikara-Poyil, Hui Cui, Bin Wang, Yanshu Shi, Banglin Chen, H. V. Rasika Dias
Summary: Propylene, a crucial component for producing industrial chemicals like polypropylene, is difficult to separate from propane due to their similar physical properties. The separation process mainly relies on energy-intensive distillation processes and accounts for a significant portion of global energy consumption. However, a copper complex supported by a fluorinated bis(pyrazolyl)borate has shown promising results in achieving selective separation of propylene from propane under mild conditions.
Article
Engineering, Chemical
Hassan Abedini, Mehrdad Asgari, Martin Watt Coull, Ahmad Shariati, Mohammad Reza Khosravi-Nikou
Summary: The study demonstrates that Cu-MOF-74 framework exhibits greater capacity and affinity for propylene compared to propane, making it more efficient for propane/propylene separation than zeolite 13X. By applying novel frameworks like Cu-MOF-74, propylene can be efficiently purified into a polymer-grade level quality, highlighting the importance of using innovative solutions for challenging industrial separation applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Emad N. Al-Shafei, D. Robert Brown, Sai P. Katikaneni, Hameed Al-Badairy, Oki Muraza
Summary: The study investigated propane dehydrogenation assisted by CO2 using zirconia and titania catalysts. The increase of CO2 ratio led to higher propylene selectivity, while increasing the CO/H-2 ratio was important for olefins yield and catalytic stability. The presence of CO2 played an important role in enhancing propane dehydrogenation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Anh N. Hong, Huajun Yang, Tong Li, Yong Wang, Yanxiang Wang, Xiaoxia Jia, Angel Zhou, Emily Kusumoputro, Jinping Li, Xianhui Bu, Pingyun Feng
Summary: This study introduces a new family of porous materials with exceptional propane adsorption capacity and selectivity, allowing for efficient separation of propylene and propane in gas mixtures. These materials demonstrate outstanding separation performance, as well as high stability and low regeneration energy consumption.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Ying Xiong, Tian Tian, Anouk L'Hermitte, Alba S. J. Mendez, David Danaci, Ana E. Platero-Prats, Camille Petit
Summary: Researchers have developed a silver-exchanged zeolite Y as an adsorbent for propylene/propane separation, which exhibits high selectivity, fast kinetics, and reversible sorption. The design strategy of enhancing sorption site affinity and maintaining pore size can be extended to other adsorbents, promoting the deployment of adsorption technology for propylene/propane separation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Zhitong Zhao, Jingyang Jiang, Feng Wang
Summary: The study revealed that nearly all renewable pathways for light olefin production are currently economically unattractive, with raw material cost being dominant. Further cost reduction is needed to achieve competitive production costs.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Yi Xie, Yanshu Shi, Hui Cui, Rui-Biao Lin, Banglin Chen
Summary: The newly developed ultramicroporous material nickel nitroprusside (Ni-NP) demonstrates high efficiency in separating propylene from propane at ambient conditions, with high selectivity and absorption capacity for C3H6/C3H8 separation. The material can be easily obtained through a simple precipitation reaction under ambient conditions, highlighting its potential for scale-up production.
Article
Engineering, Environmental
Jung Gi Min, K. Christian Kemp, Kevin S. Kencana, Rino R. Mukti, Suk Bong Hong
Summary: The 973 K-steamed cesium ZK-5 zeolite shows high propylene uptake and propylene/propane selectivity, along with fast adsorption kinetics, making it potentially useful for selective propylene/propane separation. Its impressive regeneration performance compares favorably with pure-silica small-pore zeolite ITQ-12, highlighting its potential in adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Chuang-Wei Zhou, Xue-Zhi Wang, Mo Xie, Ri-Qin Xia, Dong Luo, Zhao-Xia Lian, Guo-Hong Ning, Weigang Lu, Xiao-Ping Zhou, Dan Li
Summary: A self-assembled Fe4L6 capsule was developed for encapsulating and separating propylene and propane, providing a new strategy for the separation of olefin/paraffin.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(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.
Article
Biochemical Research Methods
Mahsa Kianinia, Seyed Majid Abdoli
Summary: The study simulated the process of producing ethylene from methanol using Aspen HYSYS software, improving ethylene yield and purity. By replacing the plug flow reactor with an equilibrium reactor and employing a distillation column separation process, the design was optimized to be closer to industrial practices.
COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING
(2021)
Article
Chemistry, Physical
Ehsan Kianfar
Summary: This study investigates the influence of silicon and water content on the performance of SAPO-34 catalyst. Catalysts with different molar ratios demonstrate high ethylene and propylene selectivity due to intensified crystallinity and crystal size. The presence of high-density acute acidic sites promotes the production of aromatic and saturated hydrocarbons.
Article
Green & Sustainable Science & Technology
Dong Xiang, Peng Li, Xiaoyou Yuan
Summary: The study confirms that the production of propylene and hydrogen from propane has high energy and environmental competitiveness, promising to reduce oil consumption and has significant development prospects in the olefins industry.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Nanoscience & Nanotechnology
Hongjian Tang, Qisong Xu, Mao Wang, Jianwen Jiang
Summary: In this study, a hierarchical approach combining molecular simulation and machine learning was developed to rapidly screen for the best metal-organic frameworks for propane/propylene separation. The study successfully identified new MOFs with superior separation performance compared to the top-performing known materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Jinxuan Zhang, Kazem Shahidi, Gurvinder Sekhon, Alexander Hudson, Mason Hatahet, Farah Salih, Xuezhen Wang
Summary: The PermyleneTM demonstration system (PDS) is a membrane-based pilot unit designed for olefin/paraffin separation. This system has shown remarkable performance in C3 separation, achieving high propylene purity and low energy consumption.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Meng-Lin Tsai, Yen-Hsiang Wang, I-Lung Chien
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Engineering, Chemical
Meng-Lin Tsai, I-Lung Chien
Summary: A new design principle for the separation of benzene/isopmpanol/water ternary mixture was proposed using a triple-column side-stream extractive distillation system, which achieved significant cost savings through energy-efficient operation. Simulation results confirmed the effectiveness of the proposed heat-integrated design and overall control strategy in maintaining high purity of the products without the need for an online composition analyzer.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Bor-Yih Yu, Jao-Wei Ciou, Pei-Jhen Wu, Gow-Bin Wang
Summary: In the process of separating acrylonitrile, acetonitrile, and water, energy savings of 9.8% and reduced carbon emissions were achieved through design optimization. Economic processing saved costs and carbon emissions.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Chemical
Yin-Rui Zhang, Tsai-Wei Wu, I-Lung Chien
Summary: A novel energy-efficient process for improving the separation of water-rich mixture in IPA production has been proposed, utilizing liquid-liquid separation coupled with pressure-swing distillation. Through optimization of process parameters and heat-integrated strategies, a simple and efficient separation process configuration was achieved, leading to reduced total costs.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Chemical
Meng-Lin Tsai, Yin-Rui Zhang, I-Lung Chien
Summary: This study proposes an improved design flowsheet for the separation of benzene and isopropanol from wastewater, utilizing natural liquid-liquid splitting and optimizing the heat integration design. The proposed heat-integrated separation system can significantly reduce total operating cost and total annual cost compared to the best separation system currently available in open literature.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Sheng-Jer Chen, Bor-Yih Yu
Summary: Hybrid membrane/cryogenic distillation processes are proposed for producing high/ultra-high purity products, with rigorous simulation and techno-economic evaluation showing promising economic attractiveness. Further development of membranes with high oxygen permeability is recommended for improved economic performance. The internal rate of return for the best hybrid membrane/cryogenic distillation processes indicates economic feasibility for production focused on high/ultra-high purity products.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Chemical
Tsai-Wei Wu, I-Lung Chien
Summary: This study introduces a novel intensified process called TSHI, which converts CO2 to methanol and then to DME, showing great potential for CO2 reduction and energy saving. Further improvements are needed for cost-effective production of green alternative fuel.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Environmental
Bor-Yih Yu, Ting-Yu Tseng, Zhen-Yu Yang, Shiau-Jeng Shen
Summary: This study evaluates different process configurations for producing solketal from glycerol and acetone, finding that the solvent-free coupled reaction/distillation (SFCRD) process is the most promising. The SFCRD process significantly reduces costs and CO2 emissions, while also establishing a control structure to handle disturbances effectively.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Chengtian Cui, Qingjun Zhang, Xiaodong Zhang, Jinsheng Sun, I-Lung Chien
Summary: By implementing heat integration, vapor recompression, and self-heat recuperation in pressure-swing distillation, energy saving and CO2 emission reduction can be achieved. Despite potential decreases in controllability, robust control structures and strategies are developed to address this issue and demonstrate that there are no conflicts between steady-state advantages and dynamic controllability for this specific separation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yin-Rui Zhang, Tsai-Wei Wu, I-Lung Chien
Summary: Thermodynamic analysis was conducted to screen feasible ternary systems with water, resulting in TBA/EtOH/water, THF/EtOH/water, and ACN/IPA/water mixtures suitable for separation using a dehydrating agent. TCRED and DCRED process configurations were developed to significantly reduce capital cost and energy consumption while achieving energy savings.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Cheng-Ting Lee, Chang-Che Tsai, Pei-Jhen Wu, Bor-Yih Yu, Shiang-Tai Lin
Summary: This work evaluates potential direct CO2 conversion processes through systematic screening and process simulation. Three promising routes were selected for detailed study, including process simulation, optimization, heat integration, and systematic comparison with a previously-proposed process. The study determined the minimum required selling prices and CO2 emission rates for producing DMC, DPC, IPPhCM, and DEC, showing that reducing excess ratio and reaction time can improve environmental performance.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Chemical
Chengtian Cui, Qingjun Zhang, Xiaodong Zhang, Jinsheng Sun, I-Lung Chien
Summary: This study investigates the process synthesis and plantwide control of energy saving extractive distillation with preconcentration to produce anhydrous acetonitrile using ethylene glycol as a heavy entrainer. The process intensification measures achieve significant reductions in energy costs and total costs. The proposed robust plantwide control structures ensure stable regulatory control even with large disturbances in throughput and composition.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Tsai-Wei Wu, I-Lung Chien
Summary: A novel control strategy is developed in this work for an intensified hybrid reactive-extractive distillation system using only temperature measurements, addressing the challenging issues in the design configuration. By using temperature and temperature-difference control loops as surrogates for quality control loops, the best control structures are demonstrated to be resilient to measurable throughput disturbances and adaptable to different system characteristics.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yueh-Cheng Yu, Ting-Ya Wang, Li-Hsuan Chang, Pei-Jhen Wu, Bor-Yih Yu, Wen-Yueh Yu
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2020)
Article
Engineering, Chemical
Bor-Yih Yu, Chang-Che Tsai
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2020)