Plug Flow Reactor
1. Experimental Methods
The aims of this experiment to determine the rate of the reaction by using tubular flow reactor data, to demonstrate the temperature dependence of the reaction and also the rate constant and to observe the effect of different flow rates to the conversion. It is a homogenous reaction with only liquid phase is present. Also the reaction is endothermic. The saponification reaction is as follows;
NaOH + EtOAc NaOAc + EtOH
The reactants were taken as 1:1 ratios. 0.1 M NaOH and 0.1 M EtOAc was taken as reactants. The tank volume is 141 mL, the length of the reactor is 20 m and the diameter of the reactor is 1 mm. Reactor is placed in a water bath to keep the temperature constant during the reaction. There is a thermocouple to measure the temperature. To maintain uniform temperature everwhere inside the water bath a stirrer is used.There are two feed tanks which continuously feed reactants to the reactor. The reactants which are NaOH from Tank1 and EtOAc from Tank2 are sent to the reactor with two different pumps. There is a valve that the sample is taken at the bottom of the system.
In this report the first week of the experiment was explained. The concentration of NaOH was unknown therefore, it was necessary to determine concentration of it. This was achieved by titrating NaOH with 0.1M HCl.
After determining the concentration of NaOH, calibration of rotameters was done. Calibration is important to prevent instrumental errors thus calibration of flowrates of both NaOH and EtOAc. A calibration curve was constructed for both reactants. By using these calibration curves four flow rates for determined for both reactants by keeping 1:1 ratio of the reactants. Space times for these flowrates were determined. Samples were taken at the end of each space time and by using back titration method how much NaOH remained unreacted was determined. This was continued until steady state is reached for each space time. In back titration, 10 mL of HCl is
The aims of this experiment to determine the rate of the reaction by using tubular flow reactor data, to demonstrate the temperature dependence of the reaction and also the rate constant and to observe the effect of different flow rates to the conversion. It is a homogenous reaction with only liquid phase is present. Also the reaction is endothermic. The saponification reaction is as follows;
NaOH + EtOAc NaOAc + EtOH
The reactants were taken as 1:1 ratios. 0.1 M NaOH and 0.1 M EtOAc was taken as reactants. The tank volume is 141 mL, the length of the reactor is 20 m and the diameter of the reactor is 1 mm. Reactor is placed in a water bath to keep the temperature constant during the reaction. There is a thermocouple to measure the temperature. To maintain uniform temperature everwhere inside the water bath a stirrer is used.There are two feed tanks which continuously feed reactants to the reactor. The reactants which are NaOH from Tank1 and EtOAc from Tank2 are sent to the reactor with two different pumps. There is a valve that the sample is taken at the bottom of the system.
In this report the first week of the experiment was explained. The concentration of NaOH was unknown therefore, it was necessary to determine concentration of it. This was achieved by titrating NaOH with 0.1M HCl.
After determining the concentration of NaOH, calibration of rotameters was done. Calibration is important to prevent instrumental errors thus calibration of flowrates of both NaOH and EtOAc. A calibration curve was constructed for both reactants. By using these calibration curves four flow rates for determined for both reactants by keeping 1:1 ratio of the reactants. Space times for these flowrates were determined. Samples were taken at the end of each space time and by using back titration method how much NaOH remained unreacted was determined. This was continued until steady state is reached for each space time. In back titration, 10 mL of HCl is