Study the process of EO production (refer to text book edited by Moulijin, p341), and answer the following questions. (1) The process is highly exothermic. How to remove the reaction heat? (10 points) (2) List three measures to prevent explosion. (Hints: temperature control and concentration control) (15 points) (3) How is the unconverted feed separated from the product gas? Which equipment is the separation carried out? (10 points) (4) Where is CO 2 from? How is CO 2 separated from the product? Which equipments are related to the separation? (15 points) (5) How is CO 2 removed from the process? Which equipments are related to the removal? What is the principle of CO 2 removal? Is all the CO 2 removed from the process according to the process description? Why ? A stream related to CO 2 removal is missing in the flow scheme, please point it out. (30 points) (6) What is the absorbent for EO? How the absorbent recycled? (10 points) (7) What is the purpose of light ends column and purification column? (10 points)