3 replies to this topic

[AndyChemEng]

Hi all,

 

We have a waste gas stream comprising of several VOCs that we would like to treat sufficiently enough to comply with the new mass threshold of 200g/h Total VOC limit in the near future.

 

We currently employ a cryogenic condensation system (-40oC) but would like to add a DMF purged scrubber (0oC) and then a water scrubber. This arrangement will remove all the VOCs down to a small level except methyl chloride!

 

I'm not keen on installing a thermal oxidizer due to: cost / availability issues / complexity / furans / environmental damage via CO2.

 

Is anyone aware of any novel or alternative abatement technology that is applicable to methyl chloride that doesn't involve a thermal oxidizer?  

 

Regards

Andrew

[breizh]

https://www.messergr...as-purification

Hi,

Consider the link above , 

May be more efficient than your current set up ?

Good luck

Breizh 

[jcb994]

-40 C does not capture MeCl?  Perhaps look at increasing the surface area?  You can always do carbon filters but depending on mass flow could be changing them out pretty regularly.

[AndyChemEng]

Thanks for the link and replies, much appreciated.

 

I'm thinking that my only alternative to treat methyl chlorides economically versus a thermal oxidiser is to install an abatement system (liquid/gas nitrogen cooling) targeted at the units responsible for emitting methyl chlorides.