Results 91 to 100 of about 92,104 (231)

Supercritical Calorimetry: An Emerging Field

CHIMIA, 2002
Calorimetry (adiabatic, isothermal, differential, oscillating or acoustic) is generally based on heat-flow measurements of the studied system. Most of its applications are dedicated to kinetic-parameter determination, safety studies and process ...
Frédéric Lavanchy, Sophie Fortini, Thierry Meyer   +2 more
doaj   +1 more source

A laboratory approach on the improvement of oil recovery and carbon dioxide storage capacity improvement by cyclic carbon dioxide injection

Energy Reports, 2021
This paper experimentally investigated influential thermodynamic reservoir characteristics such as pressure, temperature, soaking time, core stimulation, number of cycles, shale particle size, and carbon dioxide phase during the cycling carbon dioxide ...
Qing Guo, Mohammad Hossein Ahmadi, Mohammad Lahafdoozian, Aleksandra Palyanitsina, Oleg R. Kuzichkin, S.M. Alizadeh, Seyed Mohammad Mehdi Nassabeh   +6 more
doaj  

Comparison of the Anti-Inflammatory Activities of Supercritical Carbon Dioxide versus Ethanol Extracts from Leaves of Perilla frutescens Britt. Radiation Mutant

Molecules, 2017
In this study, we aimed to compare supercritical carbon dioxide extraction and ethanol extraction for isoegomaketone (IK) content in perilla leaf extracts and to identify the optimal method.
Chang Hyun Jin, Han Chul Park, Yangkang So, Bomi Nam, Sung Nim Han, Jin-Baek Kim   +5 more
doaj   +1 more source

Electrocarboxylation in supercritical CO2 and CO2-expanded liquids [PDF]

, 2008
In this study, the electrocarboxylation of benzyl chloride in pressurized CO2, or pressurized mixtures of dimethylformamide (DMF) and CO2, was investigated in order to synthesize phenylacetic acid.
Camy, Séverine, Chanfreau, Sébastien, Cognet, Patrick, Condoret, Jean-Stéphane   +3 more
core   +1 more source

Subcritical and supercritical fluid extraction a critical review of its analytical usefulness [PDF]

, 2008
Subcritical R134a is suggested as a low-pressure alternative to supercritical CO2 in the supercritical fluid extraction technology in particular of palm oil application.
Abdul Manan, Zainuddin, Mohd. Azizi, C. Y., Mustapa, A. N.   +2 more
core  

Supercritical CO2 extraction of Schinus molle L with co-solvents: mathematical modeling and antimicrobial applications

Brazilian Archives of Biology and Technology, 2013
This work investigates the antimicrobial activity of the Schinus molle L. leaves extracts obtained under supercritical conditions using carbon dioxide and co-solvents.
Rodrigo Scopel, Roberto Góes Neto, Manuel Alves Falcão, Eduardo Cassel, Rubem Mário Figueiró Vargas   +4 more
doaj   +1 more source

Microencapsulation and Nanoencapsulation Using Supercritical Fluid (SCF) Techniques

Pharmaceutics, 2019
The unique properties of supercritical fluids, in particular supercritical carbon dioxide (CO2), provide numerous opportunities for the development of processes for pharmaceutical applications.
Soon Hong Soh, Lai Yeng Lee
doaj   +1 more source

Studie tepelného oběhu s nadkritickým CO2 [PDF]

, 2018
With the increasing interest in solar and geothermal power plants as well as waste heat recovery systems from many technologies, the whole world is more focused on the gas power cycles. Especially, the supercritical carbon dioxide (S-CO2) cycles are very
Veselý Ladislav
core  

Supercritical Carbon Dioxide Extraction of Southern Pine and Ponderosa Pine [PDF]

, 2007
Pine wood and bark were extracted with supercritical (SC) carbon dioxide under various experimental conditions. The extractive yields ranged from 20-60% relative to the total diethyl ether extractive content.
Campbell, Alton G., Ritter, David C.
core   +1 more source

Carbon dioxide to carbon nanotube scale-up [PDF]

arXiv, 2017
Team C2CNT, or team Carbon dioxide to carbon nanotubes, proprietary technology directly removes the widest range of carbon dioxide from the ecosystem. C2CNT technology simply transforms low to high carbon dioxide into carbon and oxygen, and the carbon produced is permanently removed, that is stable on the order of geologic time frames. C2CNT technology
arxiv