Results 91 to 100 of about 785,332 (278)

Polymer modification from semi-defatted annatto seeds using hot pressurized water and supercritical CO2

, 2020
Hydrothermal modification treatment (HMT) using hot pressurized water assisted by supercritical CO2 (sc-CO2) over polymers present in semi-defatted annatto seeds (DAS) was performed.
Osorio-Tobón, J. Felipe, Forster-Carneiro, Tânia, Steel, Caroline J., Alcázar-Alay, Sylvia C., Meireles, M. Angela A.   +4 more
core   +1 more source

Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater

Chemie Ingenieur Technik, EarlyView.
This study presents a comparison between an iterative global model and multiple approaches to a new non‐iterative model with the purpose of predicting tube wall temperature of a superheater. The results show that the non‐iterative method achieves sufficient accuracy while improving the prediction of local temperature distribution and better ...
Anežka Michálková, Zdeněk Jegla
wiley   +1 more source

Extraction of phenolic compounds and anthocyanins from blueberry (vaccinium myrtillus l.) residues using supercritical CO2 and pressurized liquids

, 2020
This work explored the potential of subcritical liquids and supercritical carbon dioxide (CO2) in the recovery of extracts containing phenolic compounds, antioxidants and anthocyanins from residues of blueberry (Vaccinium myrtillus L.) processing ...
Paes, Juliana, Martínez, Julian, Dotta, Raquel, Barbero, Gerardo F.   +3 more
core   +1 more source

Supercritical CO2 applications in microfluidic systems

, 2022
Supercritical fluid technology has been used for a variety of applications for decades and received special attention in the fields of analytics, extraction and purification of valuable compounds and preparation of drug carriers.
Aslihan Kazan, Kazan, Aslihan
core   +1 more source

Application of artificial neural network and general machine learning modelling on CO2 adsorption in moisture equilibrated South African high and medium rank coals

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the effect of moisture on CO2 adsorption in South African coals using both experimental and machine learning approaches. Three coal samples (SL, TN, and EM) with varying ranks (RoVmr: 3.49%, 1.26%, and 0.64%, respectively) were collected from different regions of South Africa.
Kasturie Premlall, Lawrence Koech, Douw Faurie, Khanyisile Lepota   +3 more
wiley   +1 more source

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

The Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger, Sálvio Lima de Carvalho Neto, Silvio Edegar Weschenfelder, Glaucia Rodrigues Vieira de Almeida da Fonseca, Maria de Fátima Rodrigues da Cunha, Selene Maria Arruda Guelli Ulson de Souza, Evandro Balestrin, Adriano da Silva   +7 more
wiley   +1 more source

Molecular insight into the competitive adsorption mechanism of supercritical CO2/Crude oil in shale composite model

Petroleum
With the continuous growth of global energy demand, shale oil, as an important unconventional oil and gas resource, is increasingly highlighting its strategic position.
Yuanxiu Sun, Yijie Ma, Hongrui Guo, Jiang Wu, Liping Zhang, Songqi Li   +5 more
doaj   +1 more source

Extraction of sunflower oil with supercritical CO2: Experiments and modeling

, 2006
Extraction of sunflower oil from sunflower seeds (Heliantus annuus L.) using supercritical CO2 was studied. The shrinking core model was applied to the modeling of the packed-bed extraction process.
Doker, Onur, Salgin, Ugur, Calimli, Ayla
core   +1 more source

One hundred years of teaching, research, and innovation in chemical engineering at the Faculty of Chemistry, National Autonomous University of Mexico (UNAM): Birthplace and enduring leadership of the discipline in Mexico

The Canadian Journal of Chemical Engineering, EarlyView.
The teaching of chemical engineering in Mexico started in 1925 at the Faculty of Chemistry (FQ) of the National Autonomous University of Mexico (UNAM). Academic institutions, research centres, chemical companies, technological developments, highly trained personnel, and scientific contributions are part of the legacy from FQ‐UNAM.
Patricia Pérez‐Salinas, Alberto Rosas‐Aburto, Martín G. Hernández‐Luna, Aida Gutiérrez‐Alejandre, Eduardo Vivaldo‐Lima   +4 more
wiley   +1 more source

Experimental study on the influence of venting on temperature and pressure changes in impurity-containing supercritical CO2 pipeline

You-qi chuyun
Objective Impurities are inevitably present in CO2 transmitted through pipelines, and these substances have significant impacts on the venting process of supercritical CO2 pipelines, including temperature reductions, pressure drops, and phase changes of ...
Qihui HU, Teng YANG, Qing MIAO, Liesibieke·TALAFUBIEKE, Zhaolan LI, Zhenning FAN   +5 more
doaj   +1 more source