That makes sense
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12 4x48 columns run thru a 4x18 crc with 100 grams per tube, so 1200 grams in a 4x18 column. That is 1 run i can bypass if i want or just swap it out and run 24 columns
But if he has 12 four inch material columns running threw 1 four inch crc it makes me feel like a 8 inch diameter crc for my 8 inch material column might be over kill… I got a 3 inch crc already made that I’m trying to just lengthen and use but realize I might be pushing it. But I think layering multiple filters ( have three in already and a forth on hand ) will help with the over all filter time as well
I rock a 4” material column with a 3” crc.
I like the 3” because I can use less powder, and still get a decent bed depth.
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Yeah a 3" stack should work. I would say look into ½" hosing for the material column to the filter stack/crc.
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Personally, (and I know I’m wrong) I think that whatever size material column you’re using you can get away with half the size of the material after 4". Like 8" column could probably do best with a 4" crc and a 12" column is most likely better off using a 6" crc but that’s my opinion.
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I know this thread is old but what were you using to chill that?
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That one is cooled with lc02.
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Looks frosty.
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Twas very. That was one of the racks on a multi rack bizzybee.
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Yeah looks crazy cold. Is it more cost efficient as opposed the DI or running a massive -80C chiller?
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Depending on the application. It’s technically cheaper than dry ice, as it’s “pre dry ice”. But, using small 180-220L dewars don’t hold pressure for the entire tank, so they have lots of, I guess, waste. If you have a micro-bulk, or micro-cyl, then they come out with a truck whenever you start to get low and top off your bulk tank. Which works best for keeping a higher pressure to keep feeding the lc02, so it doesn’t form dry ice in the line, causing a clog. And having a chiller is going to be a larger upfront cost, but you don’t have to deal with dry ice or keeping the jacket cooled. Smaller scale, lc02 is extremely ideal and for someone who doesn’t have the capital, yet, for a high priced chiller.
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They have different pressure options as well for the lco2 tanks
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Correct, they just adjust the prv on the larger tanks and dewar. I can’t remember the exact pressure, but I think it’s like 320 or 230 psi. One of the two, I have the first numbers mixed up, I haven’t dealt with lc02 for like 6 months. A 915 is a much better replacement. But, as long as it stays above, now I remember, 200 psi it pushes just fine. But, when the regular dewar starts getting under half, it needs the pressure booster on. And even then, it’ll start crapping out with around 25% left. Which is a waste of time and money and the small dewar cost more to fill than a micro bulk tank outside
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The big liquid nitrogen tanks are fun to play with as well. The kids love dip and dots at home
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I used ln2 on my solvent tank instead of dry ice. Tank was jacketed and it would have been useless to put in dry ice. And it couldn’t take lc02. I fed it from the top jacket port and it would keep it cold and chill my solvent when I needed to and occasionally freeze it if I wasn’t paying attention
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What if any set up do yah need to run ln2? Just that easy? Feed it into the top port, voila??
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You can fill from the bottom and it’ll just bleed off the top (prv (it’s loud)), but that’ll generally take you colder than you want to go. Feeding from the top worked best for me. It would just pool up at the bottom of the jacket under the tank and if I didn’t swish it around it would freeze the butane around the diptube. That was always fun, let me tell you
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Sounds like a bitch
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It takes a while for it to cool down all the way before it warms up, then it has to go further than the freezing point, warming up, to not be a liquid anymore. So ya, it was awesome. Haha
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