inpink logo


    A close look at supercritical carbon dioxide co2

    HD
    7:59
    автор | дата 03.09.2011
    • 714565
    • 8011
    • 144
    Проголосовало пользователей: 8155
    I built a pressure vessel from aluminum and acrylic, and filled it by placing pieces of dry ice inside. The dry ice melts under high pressure, and forms a liquid and gas phase. When the vessel is heated, the CO2 becomes supercritical -- meaning the liquid and gas phases merge together into a new phase that has properties of a gas, but the density of a liquid. Supercritical CO2 is a good solvent, and is used for decaffeinating coffee, dry cleaning clothes, and other situations where avoiding a hydrocarbon solvent is desirable for environmental or health reasons. If you have a suggestion for what I should do with the supercritical CO2, please leave a comment. CO2 can be liquefied in plastic bottle preforms: http://www.youtube.com/watch?v=8AN_XMcD3yI It may be important to open the container before all of the solid melts. When there is still some solid CO2 present, the pressure will be close to the triple point. Once the solid completely melts, the pressure will increase quickly to about 750 psi depending on the ambient temp. I really doubt those plastic containers could hold 750 psi. My first look at supercritical fluids: http://www.youtube.com/watch?v=yBRdBrnIlTQ Another youtuber interested in supercritical CO2: http://www.youtube.com/watch?v=GEr3NxsPTOA Added engineering recap and formulas: http://benkrasnow.blogspot.com/2011/09/close-look-at-supercritical-carbon.html
    ЕЩЁ
    • СКАЧАТЬ
    автор | дата 11.04.2012
    Frosty gets a taste of some pretty pure nepetalactone after supercritical liquid CO2 extraction from catnip. Video of the extraction here: ...
    • СКАЧАТЬ
    автор | дата 10.08.2011
    liquid CO2 is heated in a pressure cell until it reaches the critical point were it changes into a supercritical fluid.
    • СКАЧАТЬ
    автор | дата 01.10.2013
    I built another supercritical CO2 chamber for extraction and drying. This time, I wanted a chamber that was easier to open and close, and could be expanded to ...
    • СКАЧАТЬ
    Supercritical co2 extraction machine daily maintenance and CBD collection.
    • СКАЧАТЬ
    автор | дата 29.11.2016
    I break the high pressure gas tube to see what it would do. Pre-order High Speed Camera: ...
    • СКАЧАТЬ
    автор | дата 16.06.2010
    This video shows liquid carbon dioxide being heated to a supercritical fluid. A supercritical fluid is generally understood to be something between a gas and a ...
    • СКАЧАТЬ
    автор | дата 14.01.2016
    This experiment demonstrates the behavior of carbon dioxide around the critical point. It shows the transition of a liquid-vapour-mixture to the supercritical state ...
    • СКАЧАТЬ
    автор | дата 13.08.2013
    I built a small extraction chamber for processing materials with supercritical CO2. Please refer to my previous videos for more information about supercritical co2: ...
    • СКАЧАТЬ
    автор | дата 02.10.2011
    I left my supercritical CO2 chamber charged up with 750 psi liquid CO2 (not supercritical) for about a week. I then depressurized the chamber, and opened it.
    • СКАЧАТЬ
    автор | дата 16.04.2017
    Complete Description On Supercritical Carbon dioxide.
    • СКАЧАТЬ
    автор | дата 20.05.2012
    This video shows the different densities of carbon dioxide in the thermodynamic states of a liquid, a gas and as a supercritical fluid. This video was taken at the at ...
    • СКАЧАТЬ
    автор | дата 03.08.2008
    heating up CO2 above 31 °C transforms the liquid CO2 to a supercritical fluid.
    • СКАЧАТЬ
    автор | дата 14.11.2016
    CHEMTRON MANUFACTURES SUPER CRITICAL CO2 EXTRACTION SYSTEMS RANGING FROM CAPACITIES OF 1 to 150 Ltrs.
    • СКАЧАТЬ
    автор | дата 05.06.2013
    Supercritical CO2 Heating past the critical point.
    • СКАЧАТЬ
    автор | дата 10.12.2018
    "What Is Co2 Gas? Watch more videos for more knowledge What is CO2? - YouTube https://www.youtube.com/watch/snYL5p2lUrY It's a Gas 13 - Properties of ...
    • СКАЧАТЬ
    автор | дата 07.02.2014
    The science of supercritical fluids (SCFs).
    • СКАЧАТЬ
    • СКАЧАТЬ
    автор | дата 28.04.2008
    Is it a liquid? Is it a gas? Professor Martyn Poliakoff demonstrates supercritical fluids in his office at the University of Nottingham. More with Professor Poliakoff at ...
    • СКАЧАТЬ
    автор | дата 07.11.2011
    I tried to build a cloud chamber with supercritical CO2, thinking that ionizing radiation (alpha particles) would cause localized condensation of the CO2 at the ...
    • СКАЧАТЬ
    автор | дата 21.12.2016
    Cold Separation technology utilized by Apeks Supercritical CO2 extraction systems produces high quality extractions with better terpene preservation, more ...
    • СКАЧАТЬ
    автор | дата 20.09.2011
    I tried to extract caffeine from green coffee beans using supercritical CO2, but I had no success. The beans underwent a strange transformation, becoming white ...
    • СКАЧАТЬ
    автор | дата 06.06.2013
    Supercritical CO2 Dry Ice to Liquid Carbon dioxide.
    • СКАЧАТЬ
    CAREDDI SUPERCRITICAL CO2 EXTRACTION MACHINE Large scale Supercritical co2 fluid extraction SCFE-100Lx3 , SCFE-200Lx3,SCFE 300Lx3, ...
    • СКАЧАТЬ
    Demonstration of our SFE 10L machine. CO2 extraction trial with a natural plant at high pressure (310 bars) -- fractionation of the extract with 3 different ...
    • СКАЧАТЬ
    автор | дата 17.08.2015
    UPDATE: This system was discontinued in 2017! Our Denver Sales Engineer Craig Henderson demonstrates the 1500-1L benchtop CO2 extraction system.
    • СКАЧАТЬ
    автор | дата 07.10.2017
    https://goo.gl/3nCSoQ We love the science of extraction. We hope you do to. Even if you decide to buy a system from a competitor, we all have a lot to learn ...
    • СКАЧАТЬ
    автор | дата 22.11.2016
    To test out some high performance glass tubes I put some dry ice inside to see what happens. Ben's Video: https://www.youtube.com/watch?v=-gCTKteN5Y4 ...
    • СКАЧАТЬ
      Сейчас смотрят