دورات هندسية

 

 

Single ideal reactors and batch reactor

النتائج 1 إلى 2 من 2
  1. [1]
    طالب الكيمياء
    طالب الكيمياء غير متواجد حالياً

    جديد

    تاريخ التسجيل: May 2008
    المشاركات: 1
    Thumbs Up
    Received: 0
    Given: 0

    Single ideal reactors and batch reactor

    السلام عليكم أخواني واساتذة الاعزاء

    أرجو أحد يساعدني على حل هذه الاسئلة في اسرع وقت ممكن لقرب الامتحانات النهائية فالاسئلة اوقفتني عن حلها ... ..
    ولكم مني جزيل الشكر


    Single ideal reactors and batch reactor

    Problem #1:
    From the following data find a satisfactory rate equation for the gas-phase decomposition of pure A, A--> R + S, in a mixed flow reactor.
    RunNumber 1 2 3 4 5
    XA ( for CAO= 0.002 mollliter). 0.22 0.63 0.75 0.88 0.96
    Space Time, sec. 0.423 5.10 13.5 44.0 192

    -------------------------------------------------------------
    Problem #2
    In the presence of a homogeneous catalyst of a given concentration aqueous reactant A converted to product at the following rates and CAo alone determined this rate.
    CA mol/lit 1 2 4 6 7 9 12
    -r mol/lit.hr 0.06 0.1 0.25 1.0 2.0 1.0 0.5
    a) Find the time needed to lower the concentration of A from CAo= 10 mol/lit to CAf= 2mol/lit in a batch reactor.
    b) What size of mixed flow reactor is needed for 60% conversion of a feed stream of 1000 mol/hr at CAo =8 mol/liter?

    ------------------------------------------------------------
    Problem 3
    The thermal decomposition of nitrous oxide (N2O)in the gas phase at 1030 K is studied in a constant volume batch reactor at different initial pressures of N2O The half- life data so obtained are as follows:
    Po .mmHg 52.5 139 290 360
    T1/2,sec 860 470 225 212
    Determine a rate equation that fits these data.


    -------------------------------------------------
    - Problem #4
    Consider a gas- phase dehydrogenation reaction that occurs at a constant temperature of 1000K.

    RCH2OH (g)---> RCHO (g) + H (g)
    At this temperature, the reaction rate constant is equal to 0 04 lit/(mol mm)
    If the reaction takes place in a constant pressure batch reactor, starting with 90% gaseous RCH2OH and 10% inerts at a pressure of 2 atm, find the time necessary to reach 20% conversion of RCH2OH.
    What would be the conversion after 10 hours in a bomb reactor operating at the same temperature, starting with pure A feed at 5 atm ?

    --------------------------------------------

    Problem#5
    The elementary gas-phase reaction A+ B <--> R takes place at 120° C and 1 atm in a mixed flow reactor The feed consists of 20 mol%A, 20% B and the remainder inerts.
    At 120°C, the rate constant for the forward reaction is 5.04 m and that of the reverse reaction is 2.16 hr The flow rate of the feed stream is 0.1 m3/hr.
    Calculate the following:
    a) Equilibrium conversion of B.
    b) Volume of the CSTR necessary to convert 60% of A.
    c) Space time necessary to achieve 60% conversion of A.

    أن شاء الله لا تبخلوا علينا في مساعدتنا... لقرب الامتحانات النهائية
    أن شاء الله .. الله يوفقنا

    من مواضيع طالب الكيمياء :


    0 Not allowed!



  2. [2]
    خالدشغل
    خالدشغل غير متواجد حالياً
    عضو


    تاريخ التسجيل: Dec 2009
    المشاركات: 24
    Thumbs Up
    Received: 0
    Given: 0
    اقرا

    0 Not allowed!



  
الكلمات الدلالية لهذا الموضوع

عرض سحابة الكلمة الدلالية

RSS RSS 2.0 XML MAP HTML