{"id":38425,"date":"2024-03-26T16:48:13","date_gmt":"2024-03-26T16:48:13","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&p=38425"},"modified":"2026-07-28T23:24:56","modified_gmt":"2026-07-28T23:24:56","slug":"warum-superkritisch-co2-ist-super-cool","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/why-supercritical-co2-is-super-cool\/","title":{"rendered":"Optimierung der \u00fcberkritischen CO2-Fest-Fl\u00fcssig-Extraktion mit Coriolis-Massendurchfluss"},"content":{"rendered":"

[et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”1rem|0vw||0vw|false|true” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”0px||0px||true|false” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_heading title=”Optimizing supercritical CO2 solid-liquid extraction with Coriolis mass flow” _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||2rem||false|false” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_heading][et_pb_image src=”https:\/\/www.alicat.com\/wp-content\/uploads\/2024\/04\/sC02.webp” alt=”sCO2 graph” show_bottom_space=”off” align_tablet=”center” align_phone=”center” align_last_edited=”on|tablet” _builder_version=”4.27.4″ _module_preset=”default” max_width=”30%” max_width_tablet=”60%” max_width_phone=”100%” max_width_last_edited=”on|phone” custom_margin=”|2rem|1rem||false|false” custom_margin_tablet=”|0rem|||false|false” custom_margin_phone=”|0rem|||false|false” custom_margin_last_edited=”on|tablet” module_alignment_tablet=”center” module_alignment_phone=”center” module_alignment_last_edited=”on|tablet” custom_css_main_element=”float: left;” global_colors_info=”{}” custom_css_main_element_last_edited=”on|tablet” custom_css_main_element_tablet=”float: none;” custom_css_main_element_phone=”float: none;” theme_builder_area=”post_content”][\/et_pb_image][et_pb_text _builder_version=”4.27.7″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]CO2<\/sub> is used in all kinds of industrial applications; for example, liquid CO2<\/sub> is commonly used as a cooling agent and solid CO2<\/sub> (dry ice) as a dairy preservative. Here, we focus on the industrial applications of supercritical CO2 <\/sub>(sCO2<\/sub>).<\/p>\n

What is sCO2<\/sub>?<\/h2>\n

A supercritical fluid is one that exhibits both gas and liquid properties simultaneously. Supercritical fluids have gas-like surface tensions and viscosities and liquid-like densities. A fluid transitions into the supercritical state when the fluid is heated and compressed beyond its critical point \u2013 for CO2<\/sub> this is when temperature \u2265 31\u00b0C and<\/u> fluid pressure \u2265 1071 PSIA.<\/p>\n

sCO2<\/sub> is an excellent solvent<\/h2>\n

Supercritical CO2<\/sub> is the most commonly utilized supercritical fluid, often used as a solvent in commercial applications such as decaffeination, THC extraction, and essential oil production; it can even be used to make the vanilla extract found at your local grocery store.<\/p>\n

Supercritical CO2<\/sub> is a good solvent for small, nonpolar compounds \u2013 comparable to hexane and pentane. So what makes sCO2<\/sub> advantageous over organic solvent alternatives? There are several things: sCO2<\/sub> is non-toxic, non-flammable, doesn\u2019t leave harmful organic residue, and is more environmentally friendly than many conventional organic compounds (which are oftentimes under restriction by the EPA)!<\/p>\n

There are a few additional characteristics that make sCO2<\/sub> stand out as an ideal solvent for extraction processes. Like many other supercritical fluids, the combination of its liquid-like density and gas-like surface tension and viscosity allow sCO2<\/sub> to effectively penetrate into porous solids. And its relatively low critical pressure and temperature make sCO2<\/sub> preferable over many other supercritical fluids. CO2 <\/sub>is also cheap, so it is an economically beneficial choice.<\/p>\n

Using mass flow to optimize the sCO2<\/sub> solid-liquid extraction processes<\/h2>\n

Whether extracting essential oils, THC, or caffeine, the basic sCO2<\/sub> extraction process is as follows:<\/p>\n

    \n
  1. Gaseous CO2 <\/sub>is condensed into its liquid form.<\/li>\n
  2. Liquid CO2 <\/sub>is then compressed and heated until it reaches the supercritical state.<\/li>\n
  3. The sCO2<\/sub> is circulated through the raw material in a solid matrix \u2013 for example, in a caffeine extraction, the coffee beans are mixed with the sCO2<\/sub>.<\/li>\n
  4. The mixture is depressurized, and the CO2<\/sub> phase shifts back into gas so it can be reused. The extract remains in the separator where it can be collected.<\/li>\n<\/ol>\n
    \"\"<\/em><\/h6>\n
    sCO2 solid-liquid extraction process<\/em><\/h6>\n

    There is generally a tradeoff between extraction rate and sCO2<\/sub> use \u2013 the faster the extraction rate, the more excess sCO2<\/sub> is used. This extraction rate is directly dependent on the flow rate, so an increased flow rate means an increased extraction rate.<\/p>\n

    To optimize this process, it is best to consider specific application needs. Take for example the case of essential oils, where an incomplete extraction may yield sufficient product while limiting sCO2<\/sub> usage. Whatever your process may be, precise flow control is necessary to optimize the extraction rate and meet production needs for time and sCO2<\/sub> usage, and then maintain this rate throughout the process.<\/p>\n

    CODA Coriolis mass flow controllers<\/a> can be used to measure and control supercritical CO2 <\/sub>flow in many processes, able to meet the low-flow requirements for sCO2<\/sub> applications with high accuracy and precision. They can also measure and control all phases of CO2<\/sub> and can therefore be used throughout the various steps of the extraction process.[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"featured_media":46458,"parent":0,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"1920","content-type":"","_searchwp_excluded":""},"categories":[],"class_list":["post-38425","support","type-support","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nOptimizing Supercritical CO2 Solid-Liquid Extraction with Coriolis Mass Flow - Alicat Scientific<\/title>\n<meta name=\"description\" content=\"Learn how Alicat devices optimize supercritical CO2 solid-liquid extraction with Coriolis mass flow\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alicat.com\/de\/unterstutzung\/warum-superkritisch-co2-ist-super-cool\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Optimizing Supercritical CO2 Solid-Liquid Extraction with Coriolis Mass Flow\" \/>\n<meta property=\"og:description\" content=\"Learn how Alicat devices optimize supercritical CO2 solid-liquid extraction with Coriolis mass flow\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alicat.com\/de\/unterstutzung\/warum-superkritisch-co2-ist-super-cool\/\" \/>\n<meta property=\"og:site_name\" content=\"Alicat Scientific\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/alicatscientific\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-28T23:24:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alicat.com\/wp-content\/uploads\/2026\/01\/featured-alicat.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/why-supercritical-co2-is-super-cool\\\/\",\"url\":\"https:\\\/\\\/www.alicat.com\\\/support\\\/why-supercritical-co2-is-super-cool\\\/\",\"name\":\"Optimizing Supercritical CO2 Solid-Liquid Extraction with Coriolis Mass Flow - 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