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Dense CO2 as a Solute, Co-Solute or Co-Solvent in Particle Formation Processes: A Review
Requimte/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, Caparica 2829-516, Portugal
Instituto de Biologia Experimental e Tecnológica (IBET), Apartado 12, Oeiras 2781-901, Portugal
Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Avenida da Republica, Oeiras 2780-157, Portugal
* Author to whom correspondence should be addressed.
Received: 13 September 2011; in revised form: 13 October 2011 / Accepted: 19 October 2011 / Published: 16 November 2011
Abstract: The application of dense gases in particle formation processes has attracted great attention due to documented advantages over conventional technologies. In particular, the use of dense CO2 in the process has been subject of many works and explored in a variety of different techniques. This article presents a review of the current available techniques in use in particle formation processes, focusing exclusively on those employing dense CO2 as a solute, co-solute or co-solvent during the process, such as PGSS (Particles from gas-saturated solutions®), CPF (Concentrated Powder Form®), CPCSP (Continuous Powder Coating Spraying Process), CAN-BD (Carbon dioxide Assisted Nebulization with a Bubble Dryer®), SEA (Supercritical Enhanced Atomization), SAA (Supercritical Fluid-Assisted Atomization), PGSS-Drying and DELOS (Depressurization of an Expanded Liquid Organic Solution). Special emphasis is given to modifications introduced in the different techniques, as well as the limitations that have been overcome.
Keywords: particle formation; supercritical CO2; particles from gas saturated solution
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Cite This Article
MDPI and ACS Style
Nunes, A.V.M.; Duarte, C.M.M. Dense CO2 as a Solute, Co-Solute or Co-Solvent in Particle Formation Processes: A Review. Materials 2011, 4, 2017-2041.
Nunes AVM, Duarte CMM. Dense CO2 as a Solute, Co-Solute or Co-Solvent in Particle Formation Processes: A Review. Materials. 2011; 4(11):2017-2041.
Nunes, Ana V. M.; Duarte, Catarina M. M. 2011. "Dense CO2 as a Solute, Co-Solute or Co-Solvent in Particle Formation Processes: A Review." Materials 4, no. 11: 2017-2041.