Article
Engineering, Chemical
Vincent Kroeze, Lucas Braakhuis, Antoon J. B. ten Kate, Sascha R. A. Kersten
Summary: The paper presents a method for determining the minimum catalyst amount needed in a heterogeneously catalyzed reactive distillation column based on kinetic and VLE data, validated against literature cases. The method provides a conservative estimate for catalyst amount in the early design phase and information on column operability.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Ameer Khan Patan, Sunil Kumar Thamida
Summary: The experimental study evaluated the start-up dynamics and steady-state characteristics of a solid catalyzed esterification reaction in a batch reactive distillation apparatus. The use of a heating jacket on the column resulted in the highest distillate purity. Modeling approach and simulation code were developed to validate the experimental results and distillate composition under different heat input rates.
CHEMICAL ENGINEERING & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Ran An, Shengxin Chen, Hao Li, Xinxin Li, Ying Jin, Chunhu Li, Weizhong An, Ruixia Liu
Summary: The study proposes an improved reactive pressure-swing distillation (R-PSD) process for the separation of methanol-dimethyl carbonate azeotropes and compares it with the conventional heat-integrated PSD process. The results show that the R-PSD process outperforms the conventional method in terms of energy, economics, and environmental factors, indicating significant energy-saving potential.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Qiuyan Ding, Hong Li, Zhanpeng Liang, Rui Zuo, Songzhe Huang, Xingang Li, Yilai Jiao, Xin Gao
Summary: This study proposes an economical and energy-efficient reactive distillation process using excess lactic acid to address the energy consumption and yield issues in the production of bio-ethyl lactate. The proposed process has significant economic and environmental advantages, resulting in cost reduction and gas emissions reduction.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Chemical
Qing Zhao, Yanan Li, Chen Li, Min Yan, Zhaoyou Zhu, Peizhe Cui, Jianguang Qi, Yinglong Wang, Chuanxing Wang
Summary: This study proposes efficient transesterification synthesis and separation processes for n-butyl acetate (nBuOAC) and methanol (MEOH), and the optimal process conditions were obtained through calculations and optimizations. The results show that the reactive distillation-pervaporation (RDPV) process performs best economically and environmentally.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Chunrui Han, Rui Wang, Chang Shu, Xingang Li, Hong Li, Xin Gao
Summary: This article introduces a method of using reactive distillation to recover EG and byproduct 1,2-BC, and investigates the kinetic parameters of different reaction systems. The results show that the reaction rate of EG with DMC is faster, and BC is more stable than EC. The article also compares the experimental data with the predicted results from the reaction kinetic model.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Junyang Liu, Luming Wang, Yuhang Bian, Chunshan Li, Zengxi Li, Jie Li
Summary: The kinetic behavior of esterification between methacrylic acid and methanol catalyzed by NKC-9 resin in a fixed bed reactor was studied. The reaction was conducted at temperatures ranging from 323.15 to 368.15 K with a molar ratio of reactants from 0.8 to 1.4 under certain pressure. Three different kinetic models were used to fit the experimental data, and the Langmuir-Hinshelwood model showed the best fitting results. The stability of the NKC-9 resin was evaluated through long-term operation, showing no decrease in the yield of methyl methacrylate during 3000 hours. The structure and physicochemical properties of the catalyst were analyzed using various characterization techniques.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Yuhang Bian, Junyang Liu, Guoliang Zhang, Zhijian Peng, Chunshan Li
Summary: In this study, a solid acid catalyst was prepared by using functionalized copolymer for the esterification reaction of methacrylic acid and methanol. The catalyst exhibited high catalytic activity and good stability under the optimized conditions.
Article
Energy & Fuels
Catalina Tobon, Ricardo A. Tusso-Pinzon, Luis Geronimo Matallana Perez, Franz E. Lopez-Suarez
Summary: Sustainable development in separation-reaction processes aims to improve energy efficiency and reduce pollutants. The analysis of the statistics methodology enables the development of optimal qualitative technological schemes with minimal data, allowing for intensified separation and higher conversion rates.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Engineering, Chemical
Qiuyan Ding, Zhengkun Hou, Xueli Geng, Guiyu Gao, Wenwei Dong, Hong Li, Yaohong Wang, Xibo Chen, Xin Gao
Summary: The objective of this study is to find a potential reactive distillation (RD) process to solve the problem of low conversion and high energy consumption in the hydrolytic system. Four different RD processes were proposed and their advantages were verified through experiments in terms of economy and environment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Jianlin Yan, Jiyan Liu, Junyao Ren, Yang Wu, Xinnong Li, Tao Sun, Lanyi Sun
Summary: The recycling of wastewater in the chemical industry is important for recovering valuable solvents and preventing pollution. In this study, benzene/isopropanol/water mixtures were separated using reactive-extractive distillation column processes. Thermodynamic analysis and optimization with a genetic algorithm were conducted to determine suitable operating conditions. The proposed processes showed significant reductions in cost and CO2 emissions compared to traditional processes, making them more economically and environmentally sustainable.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zhengkun Hou, Xueli Geng, Qiuyan Ding, Hong Li, Yi Guo, Xin Gao
Summary: The matching problem of reaction and separation in reactive distillation is urgent, but there is little relevant research due to the lack of suitable experimental conditions. This study designed KRD001#SCPI and HY@SiC catalytic packings to verify the matching coupling of different reaction requirements. It also proposed a new matching form based on uneven product distribution from economic, environmental, and energy perspectives.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Thermodynamics
Bingxin Zhang, Ming Gao, Weiqi Tang, Xiaona Wang, Chuanfu Wu, Qunhui Wang
Summary: This study investigated the effects of methanol vapour esterification (MVE) on catalyst activity and reusability. The results showed that MVE achieved a high conversion yield of 98.8%, and the catalyst could be reused up to eight batches with a conversion rate of 83.4%. Compared to liquid methanol esterification (LME), MVE offered a higher turnover frequency and number of catalyst reuses. It also reduced leaching and chemical derivatization of the acidic groups on the catalyst surface, resulting in a lower production cost of methyl oleate.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Engineering, Chemical
Jose Luis Solis-Sanchez, Heriberto Alcocer-Garcia, Eduardo Sanchez-Ramirez, Juan Gabriel Segovia-Hernandez
Summary: Levulinic acid, one of the top chemicals from biomass in terms of market potential, can be obtained through acid hydrolysis of glucose. Reactive distillation is a process intensification technique that combines chemical reaction and distillation in a single equipment, resulting in reduced capital cost, energy consumption, and environmental impact. This work aims to implement reactive distillation for the production of Levulinic acid, achieving higher conversion and cost savings compared to conventional reactors.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Chemical
Zong Yang Kong, Eduardo Sanchez-Ramirez, Ao Yang, Weifeng Shen, Juan Gabriel Segovia-Hernandez, Jaka Sunarso
Summary: This paper discusses the application of process intensification (PI) in advanced distillation processes, focusing on extractive distillation (ED), reactive distillation (RD), and hybrid reactive-extractive distillation (RED). It highlights the contribution of PI in terms of energy, economic, environmental, control, and safety aspects, and explores future directions for PI, including the development of hybrid PI technologies and the integration of PI with Industry 4.0 applications.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
