Gas Dehydration
Gas Dehydration
(OP)
hi All,
i want to know how do we define the best way to dehydrate gas from 20 lb/mmscfd to 4 lbb/mmscfd, by using Glycol Dehydration Unit or Molecular sieve ? as far as i know molecular sieve is more expensive than using glycol, but what is the limitation of using molecular sieve ? dew point or what ?
thanks :)
i want to know how do we define the best way to dehydrate gas from 20 lb/mmscfd to 4 lbb/mmscfd, by using Glycol Dehydration Unit or Molecular sieve ? as far as i know molecular sieve is more expensive than using glycol, but what is the limitation of using molecular sieve ? dew point or what ?
thanks :)





RE: Gas Dehydration
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
RE: Gas Dehydration
Dejan IVANOVIC
Process Engineer, MSChE
RE: Gas Dehydration
I can get to 0.1 ppm water in gas with a mol sieve. It would be kind of big (maybe visible from space), but it is physically possible. I'd just hate to have to get the water back out of it.
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
RE: Gas Dehydration
That is a common spec in LNG plants. And the regeneration is energy intensive, yes. So unless you really need 0.1 ppm there is no point going for it, like I mentioned in my first post.
Dejan IVANOVIC
Process Engineer, MSChE
RE: Gas Dehydration
i want to ask basic questions. first what makes glycol can absorp vapor water in gas ? and why the liquid glycol is not entrained to gas output ? (we want to remove water vapor but we use liquid ?)
RE: Gas Dehydration
RE: Gas Dehydration
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist