A new method to quantify droplet size distribution based on Monte Carlo simulation in liquid –liquid solvent extraction
In this study, a droplet size probability (DSP) model applied to the Eulerian–Eulerian (E–E) framework is proposed to characterize the droplet size distribution (DSD) at mesoscale. The physical characteristic of the DSP model demonstrates size similarity between the computational cells and droplets. Following the single-droplet hypothesis, two sub-models are investigated. The first model is the distribution function of the droplet size, and the second model is Mo nte Carlo simulation in the computational domain. By sampling randomly from the probability density function of the DSD, the loss of physical information caus...
Source: AIChE Journal - February 26, 2024 Category: Science Authors: Quanzhong Cheng,
Boren Tan,
Xiaofei Duan,
Zhipeng Dong,
Feng Xu,
Yong Wang,
Tao Qi Tags: RESEARCH ARTICLE Source Type: research
Capturing mesoscale structures in computational fluid dynamics simulations of gas ‐solid flows
This article develops a density-based spatial clustering of applications with noise (DBSCAN)-based methodology to capture and characterize mesoscale structures from multiphase CFD simulation data. DBSCAN is an unsupervised machine-learning algorithm, which requires the value of two hyperparameters. A simple technique to calculate these hyperparameters is provided and the performance of DBSCAN is assessed on CFD-DEM simulations of bubbling fluidized beds and particle clustering. We demonstrate the computational complexity of DBSCAN to be 𝒪(nlogn), lower than the existing techniques, by testing its scalability on highly r...
Source: AIChE Journal - February 26, 2024 Category: Science Authors: Balivada Kusum Kumar,
Swathi Ganesh,
Himanshu Goyal Tags: RESEARCH ARTICLE Source Type: research
Visualization of temperature distribution and flow behavior in water evaporation using water ‐soluble spiropyran
This study provides feasible guidance on the dynamic self-assembly and thermodynamics occurring in the water evaporation system and offers a practical tool for investigating these behaviors. (Source: AIChE Journal)
Source: AIChE Journal - February 26, 2024 Category: Science Authors: Wenjing Wang,
Sibo Wan,
Yahui Chen,
Yu Fang,
Sheng Lu,
Hao Gu,
Yourong Li,
Xiaoqiang Chen Tags: RESEARCH ARTICLE Source Type: research
Electro ‐field alignment in a novel metal–organic framework for benchmark separation of ethylene from a ternary gas mixture
AbstractOne-step separation of C2H4 from ternary gas mixtures containing acetylene (C2H2), ethylene (C2H4), and carbon dioxide (CO2) represents a great challenge in chemical industry. Herein, we report the electro-field alignment in a novel anion-pillared MOF (SIFSIX-TEPE-Cu) for benchmark C2H4 separation from C2H2/CO2/C2H4 gas mixtures. The semi-cage cavities featuring capped facets generated negative potentials along anion pillars and compensatory positive-charged electro-fields along organic ligands (TEPE) that facilitate specific recognitions of C2H2 and CO2 over C2H4. As a result, SIFSIX-TEPE-Cu exhibits high adsorpti...
Source: AIChE Journal - February 23, 2024 Category: Science Authors: Lingmin Wang,
Yan Zhang,
Peixin Zhang,
Xing Liu,
Hanting Xiong,
Rajamani Krishna,
Junhui Liu,
Hua Shuai,
Pengxiang Wang,
Zhenyu Zhou,
Jingwen Chen,
Shixia Chen,
Shuguang Deng,
Jun Wang Tags: RESEARCH ARTICLE Source Type: research
Selective CO2 separation through physicochemical absorption by triazole ‐functionalized ionic liquid binary absorbents
This study may provide novel promising ionic liquid absorbents for CO2 capture applications from clean energy gases. (Source: AIChE Journal)
Source: AIChE Journal - February 20, 2024 Category: Science Authors: Xueqi Sun,
Shaojuan Zeng,
Guilin Li,
Yinge Bai,
Minghua Shang,
Jian Zhang,
Xiangping Zhang Tags: RESEARCH ARTICLE Source Type: research
Concentrated formate produced through co ‐electrolysis of CO2 and methanol in a zero‐gap electrolyzer
AbstractRecent progresses have highlighted the enormous potentials of renewable electricities driven carbon dioxide (CO2) electrolysis in achieving carbon neutrality. However, its further industrial application is limited by low liquid product concentrations, which requires energy-intensive downstream separation processing. Herein we report a CO2 and methanol co-electrolysis strategy to produce formate at both electrodes and collect highly concentrated formate in zero-gap CO2 electrolyzers. An anion exchange membrane was employed to enable formate product crossover from cathode to anode. A bismuth silicate derived nanofibe...
Source: AIChE Journal - February 20, 2024 Category: Science Authors: Jianlong Lin,
Haoyuan Chi,
Hai Liu,
Qun Fan,
Tianxiang Yan,
Siyu Kuang,
Hui Wang,
Minglu Li,
Yabo Yan,
Tianying Zhang,
Sheng Zhang,
Xinbin Ma Tags: RESEARCH ARTICLE Source Type: research
Engineering Pt ‐Cu diatomics electrocatalysts enables highly efficient urea synthesis
AbstractThe rational design of novel heterogeneous urea-synthesis electrocatalysts (HUECs) poses an immense challenge due to their inherent complexity. Moreover, the ideal HUECs must also possess the ability to suppress two major competitive reactions: hydrogen evolution reaction (HER) and N2 reduction reaction (NRR). However, this daunting task can be made feasible with the use of heterogeneous diatomic catalysts that have been supported by unambiguous theoretical models. Herein, we report a design for an efficient platinum-copper diatomic electrocatalyst (Pt1Cu1-TiO2) for urea production based on theoretical predictions....
Source: AIChE Journal - February 20, 2024 Category: Science Authors: Fei Lu,
Jingnan Wang,
Yuhang Gao,
Yan Wang,
Xi Wang Tags: RESEARCH ARTICLE Source Type: research
Liquid –liquid mass transfer and pressure drop behavior in micro‐packed beds with different shaped packings
AbstractIn this work, the liquid –liquid two-phase pressure drop and mass transfer characteristics in micro-packed beds with different shaped packing are investigated. The experimental results show that the liquid–liquid mass transfer performance of micro-packed bed is significantly affected by both apparent flow rates and phas e ratio. By changing the characteristic size of the micro-packed bed, the experimental results show that the average volume mass transfer coefficient has no obvious correlation with the length of the bed, which indicates that the flow and dispersion behavior along the length of the micro-packed ...
Source: AIChE Journal - February 20, 2024 Category: Science Authors: Jingwei Zhang,
Xiaohui Zhang,
Jianhong Xu,
Zhuo Chen Tags: RESEARCH ARTICLE Source Type: research
