--%>
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 : Problem on molar flow rate I) Sulphur

    I) Sulphur dioxide (SO2) with a volumetric flow rate 5000cm3/s at 1 bar and 1000C is mixed with a second SO2 stream flowing at 2500cm3/s at 2 bar and 200C. The process occurs at steady state. You may as

    		•
  • Q : Draw a flow diagram and annotate the

    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,

    		•
  • 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 : Problem on steam flow in a pipe A

    A stream of steam at 15 bar and 300 oC is used to produce work using a steam turbine. a. Before the turbine, steam flows in a pipe (4 cm in diameter) at a mass flow rate of 3 g/s. Calculate the mean velocity in the pipe

    		•
  • Q : Calculating adiabatic flame temperature

    Calculate the adiabatic flame temperature of acetylenes gas at a pressure of 1 bar under the following conditions. The reactants are initially at 298K. Assume that the acetylene reacts completely to form CO2 and H2O:

    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 : Mass transfer adsorption how to

    how to calculate amount of ammonia adsorbed per kg of adsobent in ammonia calcium chloride adsorption process?

    		•
  • 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 : Bsc what is the latent heat of

    what is the latent heat of vaporization for hexane

    		•
  • 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

    		•