Cryogenic Distillation of Air

Kate Morgan Author

04/30/2024 Added

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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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Cryogenic Distillation of Air

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