{"id":4287,"date":"2017-07-29T19:23:48","date_gmt":"2017-07-29T19:23:48","guid":{"rendered":"http:\/\/businesslounge-elementor.rtthemes.com\/?page_id=4287"},"modified":"2023-02-10T11:56:35","modified_gmt":"2023-02-10T11:56:35","slug":"customers","status":"publish","type":"page","link":"http:\/\/wp.scfcan.ca\/?page_id=4287","title":{"rendered":"Supercritical Fluids"},"content":{"rendered":"\t\t
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What is a Supercritical Fluid?<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Supercritical Fluids (SCFs) are compounds at a temperature and pressure beyond their critical point. \u00a0Carbon dioxide is the most widely used SCF owing to its reasonable critical point (304.1 K and 7.38 MPa), low cost, inert and non-toxic character.\u00a0<\/p>

SCFs are a single phase with properties that lie between the properties of typical gases and that of typical liquids. \u00a0 Gaseous carbon dioxide (at 298 K and 1 atm) has a density of 1.8 kg\/m3<\/sup>. \u00a0Liquid carbon dioxide (at 298 K and 10 MPa) has a density of 818.88 kg\/m3<\/sup>. Supercritical Carbon Dioxide\u2019s density can be tuned (at 350 K and 8 MPa it is 164 kg\/m3<\/sup> while at 305 K and 30 MPa it is 941 kg\/m3<\/sup>). \u00a0This density shift over narrow temperature and pressure changes is key to many of the opportunities associated with SCF applications.\u00a0<\/p>

SCF property tunability extends well beyond density. \u00a0Density, enthalpy, entropy, diffusivity, viscosity, solubility and more depend on the selected SCF and on the operating conditions of temperature and pressure. \u00a0This tunability presents an opportunity for the development of a wide range of applications.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Carbon Dioxide Phase Diagram<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Advantages of Carbon Dioxide<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n\t\t\t\t\tEnvironmentally Friendly<\/span>\n\t\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t

Carbon Dioxide is considered a green solvent and is recycled in the process. <\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\tWorker Friendly<\/span>\n\t\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t

Carbon Dioxide is considered non-toxic and non-flammable.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\tEconomically Friendly<\/span>\n\t\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t

Carbon Dioxide is inexpensive and readily available.
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Solubility in Supercritical Carbon Dioxide<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Supercritical Fluids have many unique advantages.\u00a0 The dependence of solubility on temperature and pressure is the most important.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Oil<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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At Supercritical conditions, oil (e.g. diesel) is quite soluble in Carbon Dioxide.\u00a0 Whereas, at lower temperatures and pressures, solubilities are quite low.<\/p>

The main advantage of Supercritical Carbon Dioxide over other conventional solvents is that the oil can easily be recovered from the Supercritical fluid by simple depressurization rather than an expensive distillation process for conventional solvents. This feature presents many opportunities in different industries to remove an oil-based product such as diesel.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Caffeine<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Supercritical Carbon Dioxide has the potential to extract caffeine from various solid matrices such as coffee beans, coffee waste, tea leaves, cocoa beans, etc.<\/p>

One of the earliest industrial applications of Supercritical Fluid Extraction using Carbon Dioxide has been the extraction of caffeine from coffee beans.<\/p>

Caffeine extraction using Supercritical Carbon Dioxide is a selective process. \u00a0In other words, based on operating conditions, only the caffeine compound can be extracted, but not the other precursors present in the bean (such as carbohydrates and peptides).<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Lycopene<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Lycopene is a type of carotenoid and is considered an anti-oxidant. It is widely found in fruits and vegetables, specifically those that have a pink to red colour.<\/p>

Supercritical Carbon Dioxide has the potential to extract Lycopene from food containing this valuable anti-oxidant. \u00a0<\/p>

Extraction of Lycopene using Supercritical Carbon Dioxide does not damage the structure of Lycopene and does not present any toxicity. This feature presents many opportunities to safely extract and use Lycopene, which has application in the nutraceutical industry and food industry.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Palladium Acetylacetonate<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Palladium Acetylacetonate is considered a metal chelate and used as a catalyst precursor and reagent.<\/p>

Palladium Acetylacetonate is\u00a0soluble in Supercritical Carbon Dioxide, hence it is used for the fabrication of catalysts and nano-functional materials.<\/p>

Other than this application (i.e. product context), we envisage extraction of Palladium Acetylacetonate with Supercritical Carbon Dioxide from waste streams to be a future application.<\/p><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Solubility Calculation in Supercritical Carbon Dioxide<\/H4>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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SCFVirtual has developed an application (for macOS) to calculate solubility in Supercritical Carbon Dioxide for Binary Systems and Ternary Systems. For more information and download, visit the website.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What is a Supercritical Fluid? Supercritical Fluids (SCFs) are compounds at a temperature and pressure beyond their critical point. \u00a0Carbon dioxide is the most widely used SCF owing to its reasonable critical point (304.1 K and 7.38 MPa), low cost, inert and non-toxic character.\u00a0 SCFs are a single phase with properties that lie between the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=\/wp\/v2\/pages\/4287"}],"collection":[{"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4287"}],"version-history":[{"count":97,"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=\/wp\/v2\/pages\/4287\/revisions"}],"predecessor-version":[{"id":5660,"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=\/wp\/v2\/pages\/4287\/revisions\/5660"}],"wp:attachment":[{"href":"http:\/\/wp.scfcan.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}