Long Time No See ... 오랜만이에요!

Assalamualaikum... 안녕하세요... (^__^)

It's been a long time. I didn't post anything on my blog for about more than a year I guess? These days I really missed my Perfect Villa...so...so much.

I'm still in UNIMAS...in my 4th year. It's really not a good thing. But these 2 lecturers gave me some direct & indirect-motivation regarding my extend study. I repeated, 'extend-my-study' not 'further-my-study'.

Pass two weeks the lecturer who gave me some indirect-motivation gave us assignment. He used the module from abroad. I can answer all the questions except for the last one. But then he was so kind to give us some ideas on how to begin the solutions. So I decided not to send the final question and told him that I owe him the last question and he said, "You don't owe me...you owe yourself that question". It's kind of bitter to hear him said that but I don't care. After the class I tried to work on that question, starting from what he gave us before. I knew and we knew that the hardest part is to interpret the question and to make the diagram. 3 hours after that I sent the final question to him. So this is the question.

The question from the Industrial Chemistry Module was from Dr. Helen Njeri Njenga, University of Nairobi and William Wanasolo.

10. Producer gas has the following composition by volume:

	%	Density, kg/m3
CO	28.0	1.2501
CO2	3.5	1.9768
O2	0.5	1.4289
N2	68.0	1.2507

The gas is burned with oxygen according to the following equation:

2CO + O₂ à 2CO₂

The oxygen is from the air whose volumetric composition is assumed to be 80% N₂ and 20% O₂. The oxygen fed from the air and the producer gas is 20% in excess of the amount required for complete combustion. The combustion is 98% complete. Carry out total material balance for this process based on 100kg of gas burned.

Solution:

(This is only my work, I didn't know whether its correct or not. I'll wait for my lecturer to discuss it again in my next class)

This is the diagram that interprets the question.

So I have to wait for his solutions.


Bye bye...


<Well, the answer is actually wrong...I made some silly mistakes that lead to different answer>