SIMULATION OF THE TOLUENE HYDRODEALKYLATION PROCESS Toluene Feed: T = 30 °C P = 1 atm F = 1000 kmol/h 85% C7H8+ H2 C6H6 + CH₁ 5% → 2C6H6 C12H10 + H2 Hydrogen Feed: T = 30 °C P = 1 atm F600 kmol/h C7H8 Toluene C6H6 Benzene = C12H10 Byphenyl

1. Briefly compare the three levels of diagrams for chemical processes please include their main use and key components.

17.5. Identify the following polymer processing techniques as either: (i) Continuous (able to operate for very long periods of time as long as enough polymer is supplied), (ii) Batch or semi-continuous (able to make one material at a time, or possibly operate in a cyclic or fashion for a long time with small breaks between processing) THERMAL EXTRUSION CASTING TO FORM A THERMOSET POLYMER BLOW MOLDING MELT SPINNING OF FIBERS THERMOFORMING - INJECTION MOLDING - BLOW EXTRUSION - CALENDERING - COMPOUNDING - ROTATIONAL MOLDING 17.6. You work at a plant that makes poly(ethylene terephthalate), PET, bottles using blow molding, but the production line is having a problem with lots of rejected bottles, which must be ground up and recycled. The rejected bottles sometimes have holes in the threaded part at the top of the bottle (where the screw-cap goes), or this part is often too thin and not rigid enough for the screw cap to fit snugly. A. Give a likely explanation of what is causing the…

Explain the setting time of concrete