Results 261 to 270 of about 941,371 (339)

Supercritical CO2 fractionation of jasmine concrete

The Journal of Supercritical Fluids, 1995
Abstract Jasmine fragrance is usually produced by hexane extraction. The extraction product called a “concrete,” undergoes further processing to separate fragrance compounds from undesired coextractives such as paraffins and fatty acid methyl esters. This study reports supercritical CO 2 fractionation of jasmine concrete to avoid thermal degradation
REVERCHON, Ernesto, DELLA PORTA, Giovanna, Gorgoglione D.   +2 more
openaire   +2 more sources

Use of supercritical CO2 for bone delipidation

Biomaterials, 1994
Supercritical carbon dioxide was used for bone delipidation. It appeared that this technology is very efficient since supercritical CO2 is able to diffuse into microporous solids much better than liquids and that it has a good solvent capacity for lipids.
J, Fages, A, Marty, C, Delga, J S, Condoret, D, Combes, P, Frayssinet   +5 more
openaire   +2 more sources

Rose concrete fractionation by supercritical CO2

The Journal of Supercritical Fluids, 1996
Abstract Supercritical CO2 extraction was used to post-process a solid rose extract produced by liquid solvent extraction. Single step supercritical extraction at 80 bar, 40 °C, and a two-stage separation procedure at 80 bar and −16 °C and at 15 bar and 0 °C, were the optimum process conditions to produce a volatile rose oil with an overall 2-phenyl ...
REVERCHON, Ernesto, DELLA PORTA, Giovanna   +1 more
openaire   +2 more sources

Theoretical analysis and comparison on supercritical CO2 based combined cycles for waste heat recovery of engine

, 2020
Supercritical carbon dioxide cascade waste heat recovery has proven to be a promising alternative for energy conversion applications. In this paper, four different CO2 Brayton-based dual-loop cycles are integrated to the dual-fuel engine respectively to ...
Mingzhang Pan, Yan Zhu, Xingyan Bian, Youcai Liang, Fulu Lu, Z. Ban   +5 more
semanticscholar   +1 more source

Multi-objective optimization of combined cooling, heating, and power systems with supercritical CO2 recompression Brayton cycle

Applied Energy, 2020
The supercritical CO2 Brayton power cycle is considered as a promising primary mover of the combined cooling, heating, and power system to potentially provide higher efficiency. This paper presents a novel combined cooling, heating, and power system with
Yiping Yang, Yulei Huang, P. Jiang, Yinhai Zhu   +3 more
semanticscholar   +1 more source

Polymorph Control of Sulfathiazole in Supercritical CO2

Pharmaceutical Research, 2001
Sulfathiazole was used to investigate polymorph control in liquid and supercritical CO2. Conventional techniques require a variety of solvents and techniques to produce different polymorphs. The present approach involves precipitation from an organic solution with liquid or supercritical CO2 using the SEDS process.Sulfathiazole was precipitated from ...
York, Peter, Kordikowski, Andreas, Shekunov, T.   +2 more
openaire   +3 more sources

Compact heat exchangers for supercritical CO2 power cycle application

, 2020
This paper first presents a review of compact heat exchanger technology for a supercritical carbon dioxide (S-CO2) power cycle application to provide holistic insights for designing a power system and selecting appropriate heat exchangers.
Jinsu Kwon, Seongmin Son, J. Heo, J. Lee
semanticscholar   +1 more source

Exergoeconomic analysis and optimization of an integrated system of supercritical CO2 Brayton cycle and multi-effect desalination

Energy, 2020
A cogeneration system is proposed for power and fresh water production in which the waste heat from a supercritical CO2 recompression Brayton cycle is utilized to power a conventional multi-effect desalination system.
Sattam Alharbi, Mohamed L. Elsayed, L. Chow   +2 more
semanticscholar   +1 more source

A review on application and heat transfer enhancement of supercritical CO2 in low-grade heat conversion

, 2020
Trans-critical CO2 Rankine system is a new technology for low-grade heat utilization which has high energy conversion efficiency and exergo-economic efficiency.
Shijie Zhang, Xiaoxiao Xu, Chao Liu, C. Dang   +3 more
semanticscholar   +1 more source

Supercritical CO2 Brayton cycle: A state-of-the-art review

, 2019
Against the backdrop of energy conservation and emission reduction, the development of power generation technology has always been focusing on higher efficiency with lower cost, where using renewable energy source or waste heat is one of the solutions ...
Yaping Liu, Ying Wang, Diangui Huang
semanticscholar   +1 more source