{"id":38425,"date":"2024-03-26T16:48:13","date_gmt":"2024-03-26T16:48:13","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&#038;p=38425"},"modified":"2026-01-26T16:31:56","modified_gmt":"2026-01-26T16:31:56","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":"\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; custom_padding=&#8221;1rem|0vw||0vw|false|true&#8221; sticky_enabled=&#8221;0&#8243;][et_pb_row _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243; custom_padding=&#8221;0px||0px||true|false&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_heading title=&#8221;Optimizing supercritical CO2 solid-liquid extraction with Coriolis mass flow&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; custom_margin=&#8221;||2rem||false|false&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_heading][et_pb_image src=&#8221;https:\/\/www.alicat.com\/wp-content\/uploads\/2024\/04\/sC02.webp&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; alt=&#8221;sCO2 graph&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243; custom_css_main_element=&#8221;float: left;&#8221; custom_css_main_element_last_edited=&#8221;on|tablet&#8221; custom_css_main_element_tablet=&#8221;float: none;&#8221; max_width=&#8221;30%&#8221; custom_margin=&#8221;|2rem|1rem||false|false&#8221; custom_margin_last_edited=&#8221;on|tablet&#8221; max_width_last_edited=&#8221;on|phone&#8221; max_width_tablet=&#8221;60%&#8221; align_last_edited=&#8221;on|tablet&#8221; align_tablet=&#8221;center&#8221; custom_margin_tablet=&#8221;|0rem|||false|false&#8221; show_bottom_space=&#8221;off&#8221; module_alignment_last_edited=&#8221;on|tablet&#8221; module_alignment_tablet=&#8221;center&#8221; max_width_phone=&#8221;100%&#8221; custom_css_main_element_phone=&#8221;float: none;&#8221; custom_margin_phone=&#8221;|0rem|||false|false&#8221; align_phone=&#8221;center&#8221; module_alignment_phone=&#8221;center&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;]CO<sub>2<\/sub> is used in all kinds of industrial applications; for example, liquid CO<sub>2<\/sub> is commonly used as a cooling agent and solid CO<sub>2<\/sub> (dry ice) as a dairy preservative. Here, we focus on the industrial applications of supercritical CO<sub>2 <\/sub>(sCO<sub>2<\/sub>).\n<h2><strong>What is sCO<sub>2<\/sub>?<\/strong><\/h2>\n<span style=\"font-size: 14px;\">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 CO<\/span><sub>2<\/sub><span style=\"font-size: 14px;\"> this is when temperature \u2265 31\u00b0C <\/span><u style=\"font-size: 14px;\">and<\/u><span style=\"font-size: 14px;\"> fluid pressure \u2265 1071 PSIA.<\/span>\n<h2>sCO<sub>2<\/sub> is an excellent solvent<\/h2>\nSupercritical CO<sub>2<\/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.\n\nSupercritical CO<sub>2<\/sub> is a good solvent for small, nonpolar compounds \u2013 comparable to hexane and pentane. So what makes sCO<sub>2<\/sub> advantageous over organic solvent alternatives? There are several things: sCO<sub>2<\/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)!\n\nThere are a few additional characteristics that make sCO<sub>2<\/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 sCO<sub>2<\/sub> to effectively penetrate into porous solids. And its relatively low critical pressure and temperature make sCO<sub>2<\/sub> preferable over many other supercritical fluids. CO<sub>2 <\/sub>is also cheap, so it is an economically beneficial choice.\n<h2>Using mass flow to optimize the sCO<sub>2<\/sub> solid-liquid extraction processes<\/h2>\nWhether extracting essential oils, THC, or caffeine, the basic sCO<sub>2<\/sub> extraction process is as follows:\n<ol>\n\t<li>Gaseous CO<sub>2 <\/sub>is condensed into its liquid form.<\/li>\n\t<li>Liquid CO<sub>2 <\/sub>is then compressed and heated until it reaches the supercritical state.<\/li>\n\t<li>The sCO<sub>2<\/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 sCO<sub>2<\/sub>.<\/li>\n\t<li>The mixture is depressurized, and the CO<sub>2<\/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<h6><em><img decoding=\"async\" src=\"https:\/\/www.alicat.com\/wp-content\/uploads\/2024\/04\/SCO2-schematic.webp\" width=\"732\" height=\"356\" alt=\"\" class=\"wp-image-38638 alignnone size-full\" style=\"display: block; margin-left: auto; margin-right: auto;\" \/><\/em><\/h6>\n<h6 style=\"text-align: center;\"><em>sCO2 solid-liquid extraction process<\/em><\/h6>\nThere is generally a tradeoff between extraction rate and sCO<sub>2<\/sub> use \u2013 the faster the extraction rate, the more excess sCO<sub>2<\/sub> is used. This extraction rate is directly dependent on the flow rate, so an increased flow rate means an increased extraction rate.\n\nTo 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 sCO<sub>2<\/sub> usage. Whatever your process may be, precise flow control is necessary to optimize the extraction rate and meet production needs for time and sCO<sub>2<\/sub> usage, and then maintain this rate throughout the process.\n\n<a href=\"https:\/\/www.alicat.com\/products\/gas-flow\/mass-flow-controller\/gas-low-flow-coriolis-controllers\/\">CODA Coriolis mass flow controllers<\/a> can be used to measure and control supercritical CO<sub>2 <\/sub>flow in many processes, able to meet the low-flow requirements for sCO<sub>2<\/sub> applications with high accuracy and precision. They can also measure and control all phases of CO<sub>2<\/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]\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":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Optimizing 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=\"2026-01-26T16:31:56+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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