Molecular Sieve Desiccant Bead Question

[Bad Finger]

Can anyone tell me how the specific sizes of molecular sieve desiccant beads affect the function when it comes to holding moisture?


Thanks for the help!

[Bad Finger]

293 views and not a single response. Thanks for the help ya'll!

[WittyUserName]

I am sorry but I have no clue what the OP means......

[pnoon]

293 views and not a single response. Thanks for the help ya'll!
Do you want 293 responses of "sorry. I don't know"?

[Wharf Rat]

Google is your friend. For instance, I found: http://www.ppe.com/11cat/0118.pdf

[bobarian]

Sorry I dont know. :sh

[massphatness]

Paging Scott Shilala
Posted via Mobile Device

[CRIMPS]

293 views and not a single response. Thanks for the help ya'll!

Clearly, you weren't being ignored...

[icehog3]

Maybe if the question was posed in layman's English?

[ArgusP2]

blue

[CigarNut]

We met at the Shilo and I asked you about your question -- what you were looking for and you had no questions. I figured you were done with this... :sh

[688sonarmen]

Bigger is better or worse depending on how you look at it.

[replicant_argent]

It seems that being able to ask the question necessitates the subsequent question, "If you are smart enough to ask, do you think you are smart enough to figure out the answer on your own?"

[Garbandz]

We are not sure you can be trusted with that information..........you're welcome, I'm sure.......:gary

Lighten up,I'm sure it's not the first time you've been the smartest one in the room........

[bobarian]

I still dont know.

[lenguamor]

Donuts.

[Malazan]

Does this help

A molecular sieve can adsorb water up to 22% of its own weight

[T.G]

These are not the droids you are looking for.

[lostark374]

if you put the bacon on first then the cheese will hold it in place.

[area51]

This isn't where I parked my car.

[emopunker2004]

Nice review

[Dunkel]

Maybe I can help you out...

:pn

You're welcome

[OLS]

Paging Mr. Head...

[the nub]

Donuts.
I'm here for the donuts

[Delta Adsorbents]

Hello,
Did you ever get the info you need on Molecular Sieve Desiccant? I have specs for you and let me know if you have any questions. http://www.deltaadsorbents.com/msds.html Customerservice@delataadsorbents.com

[massphatness]

Hello,
Did you ever get the info you need on Molecular Sieve Desiccant?

Welcome to Cigar Asylum!

Please stop in and introduce yourself HERE (http://www.cigarasylum.com/vb/forumdisplay.php?f=7)

[kaisersozei]

View #575, Post #27

I have no idea on an answer to the OP, but I didn't want to disappoint him by not posting. This has the potential to be my new favorite thread.

[area51]

Hello,
Did you ever get the info you need on Molecular Sieve Desiccant? I have specs for you and let me know if you have any questions. http://www.deltaadsorbents.com/msds.html Customerservice@delataadsorbents.com

Really?
:tf

[shilala]

Your question is tough to answer, so I'll go on what I think you're asking.
The size of the bead does not affect the dessicant's function of holding moisture at all, and I'm speaking in terms of the singular bead.
When different meshes are employed in different arrangements, the ability of the dessicant's function can be severely decreased, or conversely, arranged in a fashion that takes advantage of the dessicant's principles and maximize their efficacy.
For instance, and I'll only bother you with one, if a person places 4" of beads in a 12"x12" tray, he will gain almost no more reactivity or function than that of a person who places an inch of beads in the same tray. After an inch of depth, the smallest meshes are severely impaired in their ability to transfer water vapor, but it's just a simple mechanical blockage. It's no fault of the beads.
That statement has to be taken in an educated context, because if a person is using a much larger mesh, that depth of efficacy increases with the mesh size. Those are the types of things that one tests for when engineering a product so that the design of the final product takes full advantage of the dessicant's efficacy, and is not wasting a bunch of beads that aren't doing anything that's worth having them present.
It all goes to surface area, vapor pressure, airflow and lots of math.

[WittyUserName]

Scott, did you just black out and start typing?

I do that sometimes but I buy things on the internet

[shilala]

That stuff up there actually means sh1t, Adam. :lr
Now that I woke up and read the OP's question again, the answer is even correct. :D

[WittyUserName]

That stuff up there actually means sh1t, Adam. :lr
Now that I woke up and read the OP's question again, the answer is even correct. :D
I know :tu I was making an "old school" reference. A very lame attempt

[markem]

Hello,
Did you ever get the info you need on Molecular Sieve Desiccant? I have specs for you and let me know if you have any questions. http://www.deltaadsorbents.com/msds.html Customerservice@delataadsorbents.com

He is actually looking for information relative to holding a specific humidity +/- a small percent. So he needs a material that will both absorb when the RH is above the set point and smoothly release when the RH is below the set point. From your material, it appears that your products are absorption only. The process of regeneration appears to be the process for removing the water from the bead, which indicates to me that it locks what it has absorbed and so will have a limit/lifetime. Of course, I may be misinterpreted this statement from the 3A page:

3A Molecular Sieve regenerated and reused. To regenerate the sieve you need to remove the adsorbed moisture and other materials. To regenerate 3A Molecular Sieve heat to 250℃.

The application (humidity control for cigars) does not lend itself to periodically raising the temperatures to 250*C. Still, I really like your product and your MSDS is excellent!

[icehog3]

I like turtles.

[CigarNut]

I like turtles. With or without pecans?

[icehog3]

With or without pecans?

Mine all have tails.

[shilala]

He is actually looking for information relative to holding a specific humidity +/- a small percent. So he needs a material that will both absorb when the RH is above the set point and smoothly release when the RH is below the set point. From your material, it appears that your products are absorption only. The process of regeneration appears to be the process for removing the water from the bead, which indicates to me that it locks what it has absorbed and so will have a limit/lifetime. Of course, I may be misinterpreted this statement from the 3A page:

3A Molecular Sieve regenerated and reused. To regenerate the sieve you need to remove the adsorbed moisture and other materials. To regenerate 3A Molecular Sieve heat to 250℃.

The application (humidity control for cigars) does not lend itself to periodically raising the temperatures to 250*C. Still, I really like your product and your MSDS is excellent!
Mark, most curves simply show adsorption, because that's how/why the material is being sold and purposed.
When they're talking regeneration here, they're speaking of regeneration after using it in a specific manufacturing process, such as gathering ammonia from air, or any of a host of items, beit chlorine, argon, whatever.
When used in process piping inside air driers/scavengers, it can be "cleaned" or "made new" by steam cleaning it, then drying it via vacuum. It saves money.
(Molecular Sieve is also special in that it works at very high temperatures, over 1000 degrees in process piping. The steam part is key to "cleanning" it.)

Desiccant manufacturers/salesmen aren't privy to using dessicants the way we do in humidors, nor would they want to. It's not the purpose for which they manufacture and sell the stuff, and none of their concern. I know that because I asked, and a number of people in the business took interest in my trials when I developed HCM beads. They shared a lot of useful information with me as I traded useful information with them.
Clearly I'm not saying that none of them could possibly know, I only talked to a lot, not every. But none that I spoke to had a clue and I spent hours upon hours on the phone.

Regardless, a person can easily find these things out by purchasing a number of different dessicants and testing them. It just takes lots of time and money, but it's big time geek fun. :tu

[OLS]

Mr. Richard Head.....

Paging Mr. Virginia....Mr. Wes Virginia.

[fencefixer]

Are you talking pore size or bead/pellet size? Those make a difference too.. I'm assuming you're wanting to use them in your humidor so here goes:

For what it's worth, I'm using 3 angstrom beads in about 2mm size and 4 angstrom beads in about 1mm size.. ordered them for my sons medications (he has many..) a while back, the leftovers I conditioned to 65% RH and they work like a charm in my coolers. Took a couple days of experimenting overnight with sponge in a tupperware box but it sure was worth the hassle I have to say. With this post I'm also expecting people to jump on a ***** train as to why I'm playing lottery with my cigars and why didn't I purchase a "proven" pre-fabricated product etc.. -(P

As to which pore size you should use.. I'd say both 3 and 4 angstrom would work since Ammonia is 3.6 angstrom, Carbon Monoxide is 2.8, Water is 3.2 etc. remember that it's not just water you want to pick up but stinkies too.. That's why it has its name "Molecular Sieve" it's because it won't let anything in the pores as they literally don't fit into the pores on a molecular level. I'm sure you know all this but I figured others might want some insight too. Good luck with your quest, I'm going to bed.

[Crownedone]

Waite....waite......I thought this was about donuts!.....didn't some one say there was going to be donuts here? No donuts....Then I am outa here.

[T.G]

I love lamp.

[Big Bert]

The relativity of said artifact to be kept under a certain atmospherical pressure should deduce the amount of matter given to a said object ........ Ahh who am I kidding I don't know what I'm saying. :D

[icehog3]

I love lamp.

Do you really love the lamp, or are you just saying it because you saw it?

[T.G]

Do you really love the lamp, or are you just saying it because you saw it?

I love lamp. I love lamp.

[CigarNut]

I love lamp. I love lamp.
I wonder if lamp is happy to hear this??

[bonjing]

He love lamp long time.

[markem]

He love lamp long time.

Word is that he is really good at jiggling the bubble.

[T.G]

:xxx :xxx :xxx

[markem]

:xxx :xxx :xxx

http://www.youtube.com/watch?v=reTx5sqvVJ4

[bobarian]

Not even tempted to click on that link. :bh

I like cheese. :banger

[WittyUserName]

Not even tempted to click on that link. :bh

I like cheese. :banger

X2

[CigarNut]

Not even tempted to click on that link. :bh

I like cheese. :bangerMild cheese or stinky cheese? :r