Cryogenic Distillation of Air
Kate Morgan
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04/30/2024
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Chemical Engineering senior design capstone discuss Cryogenic Distillation of Air project.
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- [00:00:03.030]I am Kate McKenzie and I'm a senior.
- [00:00:05.880]I'm Cassie Jackson. I'm also a senior.
- [00:00:08.130]I'm Jack Doherty. I'm also a senior.
- [00:00:10.530]I'm Zach Alderson and I'm also a senior.
- [00:00:13.140]Our project is the cryogenic distillation of air,
- [00:00:16.920]where we are aiming to maximize the production
- [00:00:19.994]of oxygen in both the liquid and gas forms.
- [00:00:24.480]And we chose this project
- [00:00:25.590]because we worked a lot
- [00:00:26.580]with different distillation processes,
- [00:00:28.590]but we wanted to see the cryogenic side of things as well
- [00:00:30.960]'cause we haven't been introduced to that.
- [00:00:33.780]So the way the whole process works is in a nutshell,
- [00:00:36.660]we take in air just from the atmosphere
- [00:00:38.635]and we are able to cool it down.
- [00:00:40.530]We filter it out.
- [00:00:41.430]Filter all the water and all the carbon dioxide out
- [00:00:43.770]and then we cool it down to a liquid phase
- [00:00:46.860]and then we put it into a process called
- [00:00:49.140]a distillation column,
- [00:00:50.490]which is where we're able to basically separate all
- [00:00:53.700]of the components of the air into liquid forms
- [00:00:57.032]of both nitrogen, oxygen and small amounts of argon.
- [00:01:02.760]Some of the main problems with this system are,
- [00:01:06.060]first off it's a cryogenic system,
- [00:01:07.830]which means that it's very cold.
- [00:01:09.750]Nitrogen liquefies at minus 180 Celsius,
- [00:01:14.040]which is very cold and getting a system to work
- [00:01:17.280]at those temperatures is difficult.
- [00:01:19.080]Also, a cryogenic air separation system is very integrated.
- [00:01:23.460]There's a lot of streams
- [00:01:24.660]going a bunch of different directions,
- [00:01:26.700]exchanging temperatures with each other
- [00:01:29.280]and trying to get that system optimized in a way
- [00:01:31.590]that works well requires a lot of trial and error.
- [00:01:35.070]Well, at least for me, I think,
- [00:01:36.930]the project started off in one direction.
- [00:01:40.290]We kind of went left a little bit.
- [00:01:41.820]We went right a little bit,
- [00:01:43.080]but we ultimately settled
- [00:01:44.340]with what we had thought about in the beginning
- [00:01:46.560]because that was just the most simple way to do it
- [00:01:49.676]and it ended up being how we wanted
- [00:01:53.340]to go forward with the project.
- [00:01:55.080]We're wrapping it up for all of us though
- [00:01:56.490]'cause we've been a group all through junior year
- [00:01:58.620]and now senior year.
- [00:02:00.000]We're also a group in our unit ops lab,
- [00:02:01.680]so it was wrapping it all up.
- [00:02:04.980]Spent a lot of time together.
- [00:02:06.240]Yes, we did.
- [00:02:07.073]Doing a lot of projects.
- [00:02:07.920]Writing a lot of reports.
- [00:02:09.309]Mhm.
- [00:02:10.396](light music)
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