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  2. Continuous stirred-tank reactor - Wikipedia

    en.wikipedia.org/wiki/Continuous_stirred-tank...

    A CSTR often refers to a model used to estimate the key unit operation variables when using a continuous agitated-tank reactor to reach a specified output. The mathematical model works for all fluids: liquids, gases, and slurries. The behavior of a CSTR is often approximated or modeled by that of an ideal CSTR, which assumes perfect mixing. In ...

  3. Plug flow reactor model - Wikipedia

    en.wikipedia.org/wiki/Plug_flow_reactor_model

    The plug flow reactor model (PFR, sometimes called continuous tubular reactor, CTR, or piston flow reactors) is a model used to describe chemical reactions in continuous, flowing systems of cylindrical geometry.

  4. Chemical reactor - Wikipedia

    en.wikipedia.org/wiki/Chemical_reactor

    It can be demonstrated that an infinite number of infinitely small CSTRs operating in series would be equivalent to a PFR. [9] The behavior of a CSTR is often approximated or modeled by that of a Continuous Ideally Stirred-Tank Reactor (CISTR). All calculations performed with CISTRs assume perfect mixing. If the residence time is 5-10 times the ...

  5. Attainable region theory - Wikipedia

    en.wikipedia.org/wiki/Attainable_Region_Theory

    A combination of reactors is often termed a reactor structure. An example of the reactors that are considered for this theory are Continuous flow stirred-tank reactor (CSTR) and a Plug flow reactor model (PFR). Knowledge of the AR helps to address two areas in chemical reactor design:

  6. Hegseth orders immediate pause on gender-affirming medical ...

    www.aol.com/news/hegseth-orders-immediate-pause...

    Defense Secretary Pete Hegseth ordered an immediate pause on gender-affirming medical care procedures for all active-duty service members in a memo that was addressed to senior Pentagon leadership ...

  7. North Carolina proposal scraps DMV for new authority

    www.aol.com/news/north-carolina-proposal-scraps...

    (The Center Square) – Renaming and redirecting chain of command is proposed in the North Carolina General Assembly for the agency the state’s 11 million residents access for driver’s ...

  8. Levenspiel plot - Wikipedia

    en.wikipedia.org/wiki/Levenspiel_plot

    The volume of a CSTR necessary to achieve a certain conversion at a given flow rate is equal to the area of the rectangle with height equal to and width equal to . The volume of a PFR necessary to achieve a certain conversion at a given flow rate is equal to the area under the curve of F A o − r A {\displaystyle F_{Ao} \over -r_{A}} plotted ...

  9. Low-Alcohol Beers Are Trending Like Never Before — Here Are ...

    www.aol.com/low-alcohol-beers-trending-never...

    Guinness Draught (4.2% ABV) Guinness, an Irish Dry Stout, is a fantastic example to disprove a common misconception, that dark beers are higher in alcohol.