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Post by coldspaces on Mar 6, 2014 12:57:54 GMT
Wonder if there is any reaction to the alumina? I don't know if its a problem or not but that is why I will try to find out about the pore size in the Carrier Puron drier that has no alumina.
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Post by birkie on Mar 6, 2014 13:07:52 GMT
I plan on just using the drier to filter the SO2 as I transfer it from the drum into the system. Want to make sure it is as dry as possible. Wonder if there is any reaction to the alumina? I'm pretty sure there is no reaction with alumina. Alkalized alumina, yes, but not plain activated alumina.
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Post by coldspaces on Mar 6, 2014 18:19:14 GMT
Well I found out today that the Carrier Puron drier uses the XH-11 desiccant. It is a 3A pore size and as I have already stated has no activated alumina. On page 10 in this Parker link they tell us that XH-11 is used with 410A because it can selectively absorb water with out absorbing any of the R-32 in the 410a or POE oil. www.unitecparker.com.br/f/515ad3273fe8917b2b5dfcdd5ff469b2.pdfLooks like any drier with XH-11 should work. Coldspaces
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Post by ChrisJ on Mar 6, 2014 18:25:13 GMT
Would this also work with methyl formate?
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Post by coldspaces on Mar 6, 2014 18:34:45 GMT
Would this also work with methyl formate? It should if the molecule size of methyl formate is larger than 3A.
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Post by ChrisJ on Mar 6, 2014 18:46:39 GMT
Would this also work with methyl formate? It should if the molecule size of methyl formate is larger than 3A. How does one find out the molecule size of something?
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Post by allan on Mar 6, 2014 23:38:32 GMT
Well I found out today that the Carrier Puron drier uses the XH-11 desiccant. It is a 3A pore size and as I have already stated has no activated alumina. On page 10 in this Parker link they tell us that XH-11 is used with 410A because it can selectively absorb water with out absorbing any of the R-32 in the 410a or POE oil. www.unitecparker.com.br/f/515ad3273fe8917b2b5dfcdd5ff469b2.pdfLooks like any drier with XH-11 should work. Coldspaces Do you have a part number that I can use to get a 30 cubic inch size from my Carrier distributor?
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Post by coldspaces on Mar 7, 2014 0:00:54 GMT
KH43LG073- Carrier 8 cubic inch Puron liquid line drier.
KH43LG074- Carrier 16 cubic inch Puron liquid line drier.
KH43LG075- Carrier 30 cubic inch Puron liquid line drier.
Here you go allan
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Post by coldspaces on Mar 7, 2014 0:40:30 GMT
It should if the molecule size of methyl formate is larger than 3A. How does one find out the molecule size of something? I would say ask birkie. Sure glad he mentioned the 3A thing. I hadn't thought to try to pic out an off the shelf drier by pore size.
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Post by allan on Mar 7, 2014 1:44:15 GMT
KH43LG073- Carrier 8 cubic inch Puron liquid line drier. KH43LG074- Carrier 16 cubic inch Puron liquid line drier. KH43LG075- Carrier 30 cubic inch Puron liquid line drier. Here you go allan Thank you!!
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Post by birkie on Mar 7, 2014 2:30:03 GMT
How does one find out the molecule size of something? I would say ask birkie. Sure glad he mentioned the 3A thing. I hadn't thought to try to pic out an off the shelf drier by pore size. It's based on bond lengths, atomic radius, and 3D structure - a formidable task to actually look up and calculate. For Methyl formate, it's easy enough to take shortcuts: C-O bonds are ~1.5A, C=O bonds are ~1.25A, and C-H bonds are ~1A. ChrisJ's avatar is a good enough representation of the structure. The long "squiggle" from one end of the molecule to the other (O=C-O-C-H) is at least (1.25+1.5+1.5+1) = 5.25A if it were linear. Accounting for the bond angles, the actual length will be, say, 75% of that, or around 4A. That doesn't even consider the atomic radii. So Methyl Format is definitely bigger than 3A, and should be easily excluded by a 3A medium.
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Post by ChrisJ on Mar 7, 2014 2:33:43 GMT
Wow!
Thank you birkie!
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Post by cablehack on Mar 7, 2014 3:24:44 GMT
Fascinating stuff! The talent in this forum never ceases to amaze me. So who's going to be the first to use a drier in a CA?
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Post by coldspaces on Mar 7, 2014 3:41:00 GMT
Fascinating stuff! The talent in this forum never ceases to amaze me. So who's going to be the first to use a drier in a CA? ME ME ME, oh wait I don't own one yet.
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Post by ChrisJ on Mar 7, 2014 3:50:39 GMT
If I ever get my A machine home and the Brooklyn machine to my parents house I may be. Something tells me Allan is going to beat me to it though.
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