Article
Energy & Fuels
Adila Anbreen, Naveed Ramzan, Muhammad Faheem
Summary: Research has shown that the energy consumption of a reactive distillation column can be significantly reduced by implementing external heat integration and a heat pump, thereby increasing the thermodynamic efficiency of the lactic acid production process. Energy savings in different configurations range from 63.4% to 64.9%, greatly reducing the total utilities requirement and decreasing the total annual cost.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Energy & Fuels
Lucas de Oliveira Carneiro, Renata Pinto Da Silva Matos, Wagner Brandao Ramos, Romildo Pereira Brito, Karoline Dantas Brito
Summary: This study aimed to optimize the recovery process of acetic acid from vinasse through liquid-liquid extraction and heterogeneous azeotropic distillation. Results showed that the MVR configuration had the lowest total annual cost (TAC), but high capital cost; the CONV configuration had the lowest CAPEX but poor economic and environmental indicators; the FHINT configuration had intermediate OPEX and slightly higher CAPEX compared to the CONV configuration.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Engineering, Chemical
Yanan Li, Bingjie Huo, Zaifeng Xu, Huaqing Qi, Xin Li, Peizhe Cui, Zhaoyou Zhu, Yinglong Wang, Jingwei Yang, Jun Gao
Summary: The development of a basic extractive distillation process for separating an ester/alcohol/water system was reported, with mechanical vapor recompression technology and a redesigned heat exchange network improving energy efficiency. A hybrid pervaporation-distillation process was also developed to enhance environmental performance, although economic advantages over the enhanced distillation process were not clearly demonstrated due to high equipment costs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jeremy Mantingh, Anton A. Kiss
Summary: This study proposed novel enhancements to the 1,3-butadiene production process, including modifications to the ED part with intermediate heating and replacing classic columns with a heat pump assisted DWC. Rigorous simulations in Aspen Plus showed that these enhancements significantly reduced energy intensity and total costs of the process, with a payback time of 1 year.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Lingqing Yan, Thomas F. Edgar, Michael Baldea
Summary: This article discusses using dynamic process intensification (DPI) as a strategy to improve energy efficiency in distillation processes, demonstrating through a case study on a hydrocarbon mixture that DPI can significantly reduce reboiler energy consumption compared to steady-state operation.
Article
Green & Sustainable Science & Technology
Shuai Wang, Yao Dai, Zhaoyuan Ma, Huaqing Qi, Zhengrun Chen, Yuanyuan Shen, Jingwei Yang, Peizhe Cui, Yinglong Wang, Zhaoyou Zhu, Jun Gao
Summary: The study focused on exploring sustainable and green separation methods for wastewater containing acetonitrile and n-propanol, aiming to reduce energy consumption and costs through optimization and process improvement. By combining distillation and pervaporation technology, more efficient solvent separation was achieved, along with the utilization of waste heat recovery technology to improve heat recovery efficiency in the process.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Chen Li, Limei Zhong, Yinglong Wang, Defeng Sun, Yanan Li, Peizhe Cui, Baoming Shan, Zhaoyou Zhu, Xin Li
Summary: A novel strategy for optimizing extractive pressing-swing distillation was proposed to separate pressure-sensitive azeotropic mixtures, using dimethyl sulfoxide as the optimal entrainer and multi-objective genetic optimization algorithm to traverse pressure and entrainer flow, along with vapor recompression and heat integration for process improvement, leading to enhanced economic and environmental performance.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Ying Meng, Hong Li, Chengna Dai, Biaohua Chen, Zhigang Lei, Xingang Li, Xin Gao
Summary: The novel reactive distillation (RD) process for PODEn synthesis improves product yield and selectivity while reducing energy consumption and costs. Sensitivity analysis of key operating parameters and techno-economic analysis support the feasibility of the RD process for PODEn production.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zehua Si, Hao Chen, Haifeng Cong, Xingang Li
Summary: This paper presents a novel steam-driven vapor recompression (VRC) and organic Rankine cycle (ORC) intensified methyl acetate (MeAc) hydrolysis process. The results show that the steam-driven compressor can significantly reduce energy consumption and total annual cost, providing a new way to enhance the distillation process with sufficient energy utilization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Guoqing Ge, Shuaishuai Han, Kejin Huang, Chenyang Fan, Haisheng Chen, Liang Zhang, Yang Yuan, Xing Qian, Shaofeng Wang
Summary: An effective procedure is proposed for the development of a vapor recompression heat pump (VRHP) assisted Kaibel dividing-wall distillation column (KDWDC) based on its thermodynamic characteristics. The procedure allows for the maximum performance of the VRHP-KDWDC with low complexity and computational intensity. The outcomes of the procedure demonstrate its simplicity, effectiveness, and efficiency in separating wide boiling-point quaternary mixtures.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Applied
Xingang Li, Jianing Lai, Haifeng Cong, Chang Shu, Runnan Zhao, Yiwei Wang, Hong Li, Xin Gao
Summary: The aim of this study is to improve the post-treatment stage of biodiesel production by introducing an eco-efficient integrated reactive and dividing wall distillation process. Through experiments and simulations, a reliable model for the production of solketal (SK) was established and validated. The advanced intensification of SK production by reactive dividing wall column (RDWC) achieved significant reductions in energy consumption, total annual cost (TAC), and CO2 emissions compared to traditional methods.
Article
Engineering, Chemical
Zixuan Liu, Lin Hao, Xiaoyi Han, Zhengrong Cao, Hongyuan Wei
Summary: In this article, two-feed preheating strategies and heat pump vapor recompression are used to improve the thermodynamic efficiency and economic performance of extractive distillation. The case study of methanol and acetone separation process shows that two-feed preheating strategies are more efficient and have less waste heat fraction removed by the condenser than one-feed preheating strategies. The application of vapor recompression further enhances the energy-saving and thermodynamic efficiency of the two-feed method. The optimal vapor ratio of 0.7 in two-feed preheating strategies leads to significant improvements in thermodynamic efficiency (52.46%) and energy savings (35.15%) compared to the original extractive distillation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
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
Energy & Fuels
Zetian Si, Dong Han, Yulei Xing, Jiawei Xiang
Summary: This study focused on the concentration and recovery of industrial sulfuric acid waste by a vacuum membrane distillation system. Experimental results showed that the system achieved high separation efficiency and performance coefficient. Numerical simulation revealed that adjusting critical parameters can further enhance the system performance and energy utilization.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
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
Computer Science, Interdisciplinary Applications
Eros B. Vieira, Wesley F. Busch, Diego M. Prata, Lizandro S. Santos
COMPUTER APPLICATIONS IN ENGINEERING EDUCATION
(2019)
Article
Energy & Fuels
Patrick V. Mangili, Diego M. Prata
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2019)
Article
Computer Science, Interdisciplinary Applications
Lizandro de Sousa Santos, Argimiro Resende Secchi, Diego Martinez Prata, Evaristo Chalbaud Biscaia Jr
COMPUTERS & CHEMICAL ENGINEERING
(2019)
Article
Computer Science, Interdisciplinary Applications
Patrick Mangili, Lizandro S. Santos, Diego M. Prata
COMPUTERS & CHEMICAL ENGINEERING
(2019)
Article
Engineering, Chemical
Patrick V. Mangili, Diego M. Prata
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Computer Science, Interdisciplinary Applications
Pedro G. Junqueira, Igor N. Caxiano, Patrick Mangili, Diego M. Prata
COMPUTERS & CHEMICAL ENGINEERING
(2020)
Article
Computer Science, Interdisciplinary Applications
Alexandre Santuchi da Cunha, Fernando Cunha Peixoto, Diego Martinez Prata
Summary: This study reviewed chemical reactor problems and compared the efficiency of 16 robust estimators, finding that improved estimators like Correntropy, Xie, and Biweight showed better performance.
COMPUTERS & CHEMICAL ENGINEERING
(2021)
Review
Computer Science, Interdisciplinary Applications
D. Q. F. de Menezes, D. M. Prata, A. R. Secchi, J. C. Pinto
Summary: The paper reviews robust M-estimators in various knowledge areas, including different estimators, mathematical functions, graphical forms, and tuning constants for different relative efficiency levels.
COMPUTERS & CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Rafael O. Santos, Nicole P. Barros, Argimiro R. Secchi, Diego M. Prata
Summary: In this study, an optimization approach was developed to reduce the water consumption of the methanol synthesis process, resulting in up to an 18% reduction in water usage. A multi-objective optimization analysis was conducted to find the optimal trade-off between economic performance and reduced water usage.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2022)
Letter
Engineering, Chemical
Camila P. Pereira, Diego M. Prata, Lizandro S. Santos, Luciane P. C. Monteiro
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Thermodynamics
Leomario Guedes do Nascimento, Luciane Pimentel Costa Monteiro, Rita de Cassia Colman Simoes, Diego Martinez Prata
Summary: The study investigates the vapor recompression strategy for biodiesel production, which contributes to the development of renewable and sustainable energy technologies. Computer simulation was used to design both the conventional and enhanced process, considering the impact of cooling water and steam generation on water consumption, CO2 emissions, and utility costs. The results show that the vapor recompression technology significantly improves the process performance, reducing water consumption by 65.9%, CO2 emissions by 68.4%, and utility costs by 56.6%, resulting in an 86.9% increase in eco-efficiency. This aligns with the United Nations' sustainable development goals and enhances the competitiveness of biodiesel in the market.
Article
Engineering, Chemical
Patrick Vaz Mangili, Diego Martinez Prata
CHEMICAL PRODUCT AND PROCESS MODELING
(2020)
Article
Energy & Fuels
Laura L. Trinkies, Marlene Crone, Michael Tuerk, Manfred Kraut, Roland Dittmeyer
Summary: In this study, mono- and bimetallic Pd and Pt catalysts were deposited via supercritical fluid reactive deposition (SFRD) on TiO2 coated additively manufactured substrates. The focus of this work was to evaluate the suitability of these catalysts for the direct synthesis of H2O2 in the liquid phase. The results showed that all catalysts exhibited high activity and productivity, with PdPt bimetallic catalysts showing the highest productivity and an increase in Pd loading leading to a decrease in productivity. Comparison with literature data demonstrated the high suitability of the SFRD method for the proposed application, with the added benefits of simplicity and environmental friendliness in catalyst production.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2024)
Article
Energy & Fuels
Xiongbao Hu, Zuguo Shen, Yu Wang
Summary: It is impossible to control the outer wall temperature of the micro-combustor below the maximum allowable temperature of commercial thermoelectric generators simply through increasing the equivalent heat transfer coefficient. Three simple strategies were developed to improve temperature uniformity, yet none of them could ensure full temperature control.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2024)