Chemical Process Design and Integration. Robin Smith. Chapter 23 Exercise 11

11. It is proposed to locate a thermal oxidizer adjacent to a chemical plant, with the purpose of supplying steam generated from the flue gas of the thermal oxidizer. The problem table cascades for the two processes are given in the Table 23.15. Table 23.15 Data for Exercise 11. Thermal oxidizer Chemical plant T* (C) Q (MW) T* (C) Q (MW) 605 255 155 0 14 18 245 125 45 20 14 0 Note that T* represents shifted temperatures for the process streams. Allow ATmin/2 = 5C for the steam side. a. Plot the total site composite curves. b. What are the minimum heat requirements for the total site? What steam mains would need to be installed to achieve this, assuming only latent heat to be given from the steam? Give the saturation temperature of the steam. c. Plot the steam profiles. Is there a site pinch and if so, at what temperature