process design

QUESTIONONE. > (n) Suggest any two differences in physical properties and any two unit operations that will allow the following components to be separated: (i) Volatile organic compounds + air (ii) Hydrogen + Methane (iii) Polymerized material (Gums) +C5C10 gasoline fraction (iv) SO2+ Nitrogen e.g.in exhaust gas mixture (v) Sugar (from Cane or bect) + Water (b) (i) Mention nine unit processes in chemical industries and state one application for each. * (ii) Briefly illustrate (by listing only the Unit operations involved) the manufacturing procedures for the production of Sugar, Salt and Pharmaceutical tablets. QUESTION TWO (a) (i) Diferentate between compressor and pump, and what similarities cxist between them? (ii) State five (5) applications of Compressor. (b) Acrylonitrile is produced by the reaction of propylene, ammonia, and oxygen. C3H6+NH3+3/2O2C3H3N+3H2O The feed contains 10 mole\% propylene. 12% ammonia, and 78% air. A fractional conversion of 30% of the limiting reactant is achieved. Determine which reactant is limiting, the percentage by which each of the other reactants is in evcess, and the molar fiew rates of all product gas constituents tor a 30% conversion of the limiting reactant. taking 100mol of feed as a basis. QUESTION.THREE (a) mixiurc containing 45% benzene (B) and 55% loluene ( T by mass is fed to a distiliation column. An overhead stream of 95w%B is prodiced, and 8% of the benzene fed to the column leaves in the bottom stream. The feed rate is 2000kg/h. deternine the overhead flow rate and the mass flow rates of benzene and toluene in the boltom stream. (b) List examples of fixed cost and variable cost in Chemical processing industries, and state the major differences between them