Wednesday, 27 May 2015

Second Day Reflection (27 May, Wednesday)

Today, we collated our results from the pictures we have taken down. Then, we took the area of the graph that represents water and the area of the graph that represents ethenol. After that, we were given a formula to follow to find out the concentration of each substance in the mixture. 
Use Y=mX+b to find mol
y= area
m= 1.37165e8
b= 27.50735
USE THIS^^^TO FIND “x” which is the amount of mol
After that, we discussed about total reflux, the reflux ratio 5:1 and the reflux ratio 3:1. Then, we concluded that total reflux is most efficient followed by 3:1 then 5:1. This is so as more time is given for the substances to come into contact with each other, also known as mass transfer.

Monday, 25 May 2015

First Day Reflection (26 May, Tuesday)

Today we went to NTU's lab to view the Distillation system. We listened to the teacher adviser's talk about the system and its parts, then we had to operate the system by ourselves. Step one was to prepare the mixtures but the mixtures were already prepared for us. Then, we had to pump up 8 litres of the mixture into the reboiler which will heat up the mixture. After that, 4 litres of mixture has to be pumped up into the feed tank. We had to make sure that all the valves were closed except for one valve 10. Then we turn on the power to the control panel. We had to set the feed pump controller to 2.5 units, then off the power. Then, we open valve 5 for the cooling water to the condenser; set its flow rate to three litre per minute, then on the reboiler heater. Then we had to wait for the droplet to drop into the decanter. 

Pre-camp Reflection (25 May, Monday)

The process of refining crude oil into something useful and helpful seems interesting. I mean like what can oil be used for? Can we use the oil for many other purposes? What do we have to do to achieve this? I really look foward for the research and experiements that we would be doing tomorrow.