Q3. Pilot plants are complete, medium-scale processing units that contain all essential productproducing elements, including control. The conversion of laboratory data from the research group into plant design data is only one function of the pilot plant. After a new plant or process is designed, the pilot plant continues investigations of problems that require the elimination of the compromise acceptance of data. List and describe the top five important items to be considered in a pilot plant investigation. Q4. List and describe the top six important technical factors to consider in the design of a fullsize commercial plant. Q5. The design of a full-size chemical plant must not only be technically satisfactory, but also must be economically satisfactory; the goal of the design is to secure a workable plant with maximum return on the necessary investment. List and describe the top four important economic factors to consider in the design of a full-size commercial plant. Q6. A pharmaceutical plant manufacturing bulk drugs uses acetone for final purification of a product. After filtration, the wet cake is dried in a fluidized-bed dryer in which nitrogen is used as a drying medium. The off gases from the dryer is saturated nitrogen with vapor of water and acetone at near atmospheric pressure and 7590C. Local pollution control authority requires that the emissions from the dryer must contain acetone below 200ppm. Suggest a process scheme such that the final gas mixture meets the local pollution authority's requirement with reasons for sclection of the scheme