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Research advances on process systems integration and process safety in China
heat integration process safety management process synthesis water network optimization
2023/6/19
Process systems engineering research focuses on the planning, design, operation, and safety of process systems rather than unit operations. In response to the rapid growth of the chemical process indu...
A thermo-economic multi-objective optimization model for simultaneous synthesis of heat exchanger networks including compressors
Superstructure Heat exchanger networks Compressor Mathematical programming Multi-objective Thermo-economic
2023/6/19
TWo significant forms of energy widely used in chemical industries are heat and work related to temperature and pressure manipulation. Since complex relationship exists in these strongly interacting p...
Computer-aided reaction solvent design considering inertness using group contribution-based reaction thermodynamic model
CAMD MINLP model Reaction solvent Group contribution Inertness
2023/6/19
Solvents have been widely used in process manufacturing industries. When involved in liquid-phase organic synthesis reactions, solvents can reduce the activation energy of reactions between the reacta...
功和热是化工工业中使用能源的两种最主要方式,由于流股压力、温度操作需要消耗大量的功热,因此研究功热的协同利用对于提高过程整体能源利用率具有重要的意义.本文首先概述了基于热力学分析的功热交换网络综合的研究情况,以系统?耗最小为目标探讨压缩机、膨胀机优化配置与换热网络用能瓶颈的耦合关系,揭示了功热协同利用的作用机制.然后系统地总结了以年度总费用最小为目标的数学规划模型综合功热交换网络的研究进展,探寻压...
将可见光催化、不对称合成、分子氧氧化和连续化集成,创新性地用玻璃微通道反应器实现可见光活化分子氧氧化的β-酮酸酯类化合物的不对称α-羟基化反应的连续工艺.用金鸡纳碱衍生的相转移有机催化剂在气-液-液多相体系内实现可见光催化,分子氧不对称氧化连续反应.在心形微通道反应器内,1-茚酮-2-甲酸金刚酯底物完全氧化为(S)-2-羟基-1-茚酮-2-甲酸金刚酯,产物收率95%,对映选择性87.0%.与间歇反...
Multiobjective Optimization of Interplant Heat Exchanger Networks Considering Utility Steam Supply and Various Locations of Interplant Steam Generation/Utilization
Heat Exchanger Networks Utility Steam Supply
2023/6/19
A multiobjective optimization (MOO) framework considering the dual objectives of the economy and the environment is presented in this work for the extended integration of interplant heat exchanger net...
非氟聚合物磺化聚芳醚砜酮(SPPESK)具有甲醇渗透率低、化学、热稳定性高等优点,但其高的电导率需通过提高磺化度获得,导致膜因过度溶胀而失去尺寸稳定性.添加无机纳米颗粒可以有效提高膜性能,但因其表面缺少功能化基团,导致颗粒有机相容性差,阻醇性能和质子传导率不易同时提高.硫酸化改性的纳米颗粒因其表面具有酸性位点和硫酸基团,能够有效克服这一问题.本文制备表面硫酸化改性的SnO2(SSnO2)纳米颗粒并...
Systems Pharmacology Dissection of Multiscale Mechanisms of Action for Herbal Medicines in Treating Rheumatoid Arthritis
Rheumatoid arthritis TCM Systems-Pharmacology MD MM-PBSA
2023/6/19
As a chronic inflammatory and angiogenic disease with increased morbidity and mortality, rheumatoid arthritis (RA) is characterized by the proliferation of synovial tissue and the accumulation of exce...
Machine learning-based atom contribution method for the prediction of surface charge density profiles and solvent design
atom contribution computer-aided molecular design decomposition-based algorithm machine learning
2023/6/19
Solvents are widely used in chemical processes. The use of efficient model-based solvent selection techniques is an option worth considering for rapid identification of candidates with better economic...
Design and comparison of conventional and side-stream extractive distillation sequences for separating the methanol-toluene binary azeotrope with intermediate boiling entrainer
Side-stream extractive distillation Separation sequences Intermediate boiling entrainer Eco-efficiency analysis Methanol-toluene
2023/6/19
The side-stream extractive distillation (SSED) system is attracting widespread attention due to its high eco-efficiency. In the article, three double-column SSED (DC-SSED) sequences and two single-col...
Simultaneous Optimization of a Heat-Integrated Coal-to-SNG/MeOH Polygeneration Process Based on Rigorous Kinetic Models
SNG MeOH Heat-Integrated Kinetic Models
2023/6/19
In this article, a novel simulation-optimization method is proposed for the simultaneous design of a heat-integrated coal-to-SNG/MeOH (CTSM) polygeneration process, aiming at exergy efficiency enhance...
A highly proton-conductive and vanadium-rejected long-side-chain sulfonated polybenzimidazole membrane for redox flow battery
Sulfonated long side chain Polybenzimidazole Vanadium redox flow battery 1 3-Propanesultone
2023/6/19
A long-side-chain sulfonated polybenzimidazole (PBI-PS) membrane was successfully prepared by the reaction of PBI with 1, 3-propanesultone for improving the efficiencies of vanadium redox flow battery...
以磺化聚醚醚酮(SPEEK)和磺化氧化石墨烯(SGO)为基材,提出同轴静电纺丝法制备SGO/SPEEK核壳纤维,再经堵孔进一步制备了同轴纺膜.聚合物纤维化和SGO无机掺杂有效地提高了膜的耐溶胀性.同轴纺丝进一步将SGO限域在SPEEK纤维内核中,提高了有机-无机相容性.另外,SGO/SPEEK同轴纤维中形成的长程连通质子传导通道,也可提高膜的质子传导能力.研究结果表明,在80℃时,同轴纺膜的溶胀度...
Pendent piperidinium-functionalized blend anion exchange membrane for fuel cell application
Anion exchange membrane Blend polymers Polybenzimidazole Piperidinium Inter-chain forces
2023/6/19
Alkaline anion exchange membrane fuel cell has fast cathode reactions and thus allows the use of low cost electrocatalysts. However, its practical application is hindered by the low hydroxide ion cond...
Integrated solvent-process design methodology based on COSMO-SAC and quantum mechanics for TMQ (2,2,4-trimethyl-1,2-H-dihydroquinoline) production
Solvent design Process design COSMO-SAC Quantum mechanics 2,2,4-trimethyl-1,2-H-dihydroquinoline
2023/6/19
TMQ (2,2,4-trimethyl-1,2-H-dihydroquinoline) is an important antioxidant because of relatively low price and ease of application in rubber production technologies. However, due to the limited experime...