Activated carbon bed
Activated carbon bed
(OP)
Hello,
Does anyone has experience with activated carbon bed installation?
we are doing some investigation of carbon bed and my question is , can it be installed outdoors where ambient temperatures can go as low as -40 deg C ?
thanks
Does anyone has experience with activated carbon bed installation?
we are doing some investigation of carbon bed and my question is , can it be installed outdoors where ambient temperatures can go as low as -40 deg C ?
thanks





RE: Activated carbon bed
RE: Activated carbon bed
At -40 ambient, water freezes quickly enough that "project duration" doesn't really enter into it.
What exactly is your question?
RE: Activated carbon bed
Why would one discard options before you know the scope of the project?
RE: Activated carbon bed
If using small "disposable" canisters (they often are a 55-gallon drum filled with carbon, and the supplier recharges them with carbon they regenerate on their site), put an insulating blanket on it and an heating belt under the insulation. I've done that in many places.
RE: Activated carbon bed
Outdoor applications of carbon in low ambient temperatures need heat tracing and insulating for freeze protection at minimum. Sometimes a heated shed is cheaper than that, sometimes not. If the carbon must be changed frequently (ie. when it is not being re-activated on site), you have to ask yourself whether or not you want that even attempted outdoors at -20 much less at -40. And no project duration will be short enough to permit you to install such a system outdoors in -40 without heat trace and insulation in my opinion, unless the stream is scrupulously free of condensibles (and "solidifyables", if that's a word!).
RE: Activated carbon bed
Emergency scrubbers for chlorine leaks are also supplied.
It all depends on the application.
RE: Activated carbon bed
The app is for gas phase (mostly air with around 100-300 ppm of VOCs) ,24/7 operation.
Other thing is , the air is totally saturated with water vapor .
Based on preliminary sizing, looks like 2 m in diameter and 3-4 m in height(for 12-14 weeks of service).
We are also looking at some other options for the problem , rightnow.
thanks all for replying.
RE: Activated carbon bed
RE: Activated carbon bed
I suggest that you just condense the humidity, and you will probably also reduce the VOC loading or the air by more than 50% (depending on the species), which might get you low enough to emit. The resulting wastewater can be sent to a POTW for BOD removal. The BOD surcharges will be cheap compared to any other method of control.
RE: Activated carbon bed
RE: Activated carbon bed
http://www.purafil.com/index.aspx
RE: Activated carbon bed