Results 51 to 60 of about 404 (171)

Model Development and Simulation of Anaerobic Digestion Process Using Aspen Plus

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
Cleaner energy, particularly biogas, is urgently needed. Biogas is generated via anaerobic digestion (AD), decomposing organic materials without oxygen. AD simulation models are appreciated for their cost‐effectiveness and predictive accuracy. This study creates a process model with Aspen Plus to simulate AD and biogas production.
Amir Sheikhi, Majid Rasouli, Fatemeh Boshagh   +2 more
wiley   +1 more source

Separation of Isoprenol‐Dimethyldioxane Mixture by Vacuum and Extractive Distillation

International Journal of Chemical Engineering, Volume 2025, Issue 1, 2025.
This study investigates the isolation of commercial isoprenol, a by‐product of large‐scale isoprene production. The challenge lies in separating isoprenol from an azeotropic mixture with 4,4‐dimethyldioxane‐1,3. The separation processes considered are vacuum and extractive distillation.
Alexander V. Klinov, Alexander V. Malygin, Alina R. Khairullina, Sébastien Déon   +3 more
wiley   +1 more source

Optimal design of reduced vapor transfer dividing wall structures with and without heat integration

AIChE Journal, Volume 70, Issue 11, November 2024.
Abstract A dividing wall column (DWC) is a prime example of process intensification, whereby significant energy and cost savings can be achieved for some systems compared to operation in conventional design of two columns in series. It has been theorized that the vapor and liquid thermal coupling streams in the DWC could be replaced by liquid‐only ...
Fanyi Duanmu, Eva Sorensen
wiley   +1 more source

An empirical investigation and computational modeling of volatile organic compound (VOCs) elimination from aqueous solutions by means of Pervaporation [PDF]

Engineering and Technology Journal
The present study harnessed a commercially available polydimethylsiloxane (PDMSTM4060) membrane designed for the selective separation of soluble benzene (C6H6) and toluene (C7H8) compounds from an aqueous solution employing pervaporation (PV).
Salam Rasheed, Salah Ibrahim, Asmaa Abbas, Raed Al-Jaboori, Zeinab Jawad, Low Chun, Qusay Alsalhy   +6 more
doaj   +1 more source

Liquid‐Liquid Phase Equilibrium of Glycerolysis Precursors: Experimental and Modeling Study

Chemical Engineering &Technology, Volume 47, Issue 1, Page 208-216, January 2024.
Glycerol and oleic acid are mutually immiscible components. Their rigorous reaction produces glycerol esters and water. Such mutual immiscibility of glycerol and free fatty acids limits glycerolysis, a reaction capable of upgrading waste‐derived oils. The glycerol solubility in the fatty phase increases when glycerol esters are added to the immiscible ...
Kapil Mamtani, Christian L. da Silveira, Mohammed M. Farid, Kaveh Shahbaz   +3 more
wiley   +1 more source

Biogas Production Optimization in the Anaerobic Codigestion Process: A Critical Review on Process Parameters Modeling and Simulation Tools

Journal of Chemistry, Volume 2024, Issue 1, 2024.
Many operational parameters, either discretely or collectively, can influence the biodegradation performance towards enhancing biogas yield and quality. Among the operating parameters, organic loading rate (OLR), inoculum‐substrate ratio, and carbon‐nitrogen ratio (C/N) are the most critical parameters in the optimization and enhancement of biogas ...
Mohammed Kelif Ibro, Venkata Ramayya Ancha, Dejene Beyene Lemma, Claudio Di Iaconi   +3 more
wiley   +1 more source

Parametric and Nonparametric Approaches of Reid Vapor Pressure Prediction for Gasoline Containing Oxygenates: A Comparative Analysis Using Partial Least Squares, Nonlinear, and LOWESS Regression Modelling Strategies with Physical Properties

Modelling and Simulation in Engineering, Volume 2024, Issue 1, 2024.
This study provides insights into the challenges involved in predicting the Reid vapor pressure (RVP) of gasoline‐oxygenate blends (GOB), which is an important indicator of fuel quality and compliance with environmental and performance standards. Given the enormous variety of gasoline compositions and ratios available, there is a significant demand for
Hayder M. Issa, Chen Lin Soo
wiley   +1 more source

Polymer solution vapor-liquid equilibria database

中国科学数据
Data in the field of phase equilibrium of polymer solution play an important role in describing the phase behavior of polymer-containing systems. The polymer solution vapor-liquid equilibrium database collected the
Zhao Yuehong, Wen Hao
doaj   +1 more source

Vapor-liquid equilibrium at 101.3 kPa for binary mixtures of N-methylpiperazine with ethanol or isopropanol(（乙醇、异丙醇）+N-甲基哌嗪二元体系在101.3 kPa下的汽液平衡)

Zhejiang Daxue xuebao. Lixue ban, 2001
采用改进的Rose釜测定乙醇+ N-甲基哌嗪和异丙醇+ N-甲基哌嗪两个二元体系在101.3 kPa压力下的汽液平衡数据，用折光指数法确定汽、液相组成.采用UNIQUAC活度系数模型关联实验数据，计算结果良好.
CHENShu-da(陈树大), FANGWen-jun(方文军), ZONGHan-xing(宗汉兴)   +2 more
doaj   +1 more source

Predicting Solubility of Isotactic Poly (1-Butene) in Different Organic Solvents by Modified UNIQUAC [PDF]

Iranian Journal of Chemical Engineering, 2008
The UNIQUAC activity coefficient model is extended to predict solid-liquid equilibrium of isotactic crystalline poly (1-butene), iPBu-1, in different organic solvents.
doaj