--%>
Assignment Help - homework help

Draw a flow diagram and annotate the streams

Cumene is produced by the vapour phase reaction of benzene with propylene. The fresh feeds have the following compositions:

Benzene: 99% w/w benzene, 1% w/w toluene

Propylene: 98% v/v propylene, 2% v/v propane

The vapour phase catalysed reaction takes place at 200°C and 3 MPa. The reactor will tolerate 2% toluene in the reactor efflux provided the feed to the reactor (not the process!) operates at a molar benzene:propylene ratio of 2:1.

The reactor efflux is cooled and partly condensed to 30°C and then perfectly separated into three streams: a gas stream containing the propane and two liquid streams - the product and the recycle + purge stream.

1. Draw a flow diagram and annotate the streams.

2. Calculate the rate and composition of the purge stream.

3. Add the flows of all streams to the PFD.

4. The feeds to the process are at 20°C. Calculate (not using a process simulator) the heat to be removed to maintain this optimum temperature for a cumene production of 1,500 kg/h.

   Related Questions in Chemical Engineering

  • Q : Rate of flow of nitrogen The feed to an

    The feed to an ammonia synthesis reactor contain 25 mole% nitrogen and the balance hydrogen. The flow rate of the stream is 3000 kg/hr. Calculate the rate of flow of nitrogen into the reactor in kg/hr. (Hint: First calculate the average molecular weight of the mixture).

    		•
  • Q : Production of ethanol Ethanol (1)

    Ethanol (1) Describe the production of ethanol in Scottish Whisky beverages. Be sure to include a discussion on dangers of impurities (2) Explain the impact of ethanol on the human body (3) List th

    		•
  • Q : Problem on Clausius-Clapeyron equation

    The Clausius-Clapeyron equation gives us an expression for dP/dT. Now we will derive an analog to the Clausius-Clapeyron equation by obtaining an expression for dT/dµ when two phases are at equilibrium. For simplicity, let’s derive this fo

    		•
  • Q : I need to solve the material and energy

    I need to solve the material and energy balance for the att.

    		•
  • Q : Problem on entropy A heater (heat

    A heater (heat source temperature = 527 K) and turbine are connected in series as shown below:

    Q : Problem on ideal gas law A stream of

    A stream of steam at 1 bar and 400 K enters a compressor through a pipe with cross-sectional area of 0.1 m2 at a velocity of 5 m/s. The pressure of the outlet stream is at 5 bar, temperature is at 500 K, and velocity is 1 m/s. Assume the steam can be descri

    		•
  • Q : Problem on empirical van Laar equation

    At atmospheric pressure ethyl acetate and ethyl alcohol form an azeotropic mixture containing 53.9% mole of ethyl acetate and boiling at 71.8°C. a) Estimate the values of A & B in the empirical van Laar equation

    		•
  • Q : Bsc what is the latent heat of

    what is the latent heat of vaporization for hexane

    		•
  • Q : Materials and energy balance you look

    you look up the specific gravity of 96% H2SO4 and find it is 1.858.calculate the weight

    		•
  • Q : Problem on heat of sublimation Using

    Using the vapor pressure data provided below, estimatei) the heat of sublimation of ice,ii) the heat of vaporization of water,iii) the heat of fusion of ice and compare your estimate with the published value of 6010 J/moLiv) the triple point of wate

    		•