Off-gas Analysis
Off-gas Analysis
(OP)
I have a solid petroleum compound being handled in a process building and would like to determine what gases are being "off-gased" from it and at what rates - purpose of which is to supply adequate ventilation. Can anyone tell me the type of chemical analysis I am looking for? And possibly recommend a lab that can perform this analysis for me?





RE: Off-gas Analysis
no, simply because insufficient information has been provided. what is the solid petroleum compound? what process occurs to solid such that off-gases are released and released to? lab? can't answer that matter either.
should you want an answer, more information would be helpful.
good luck!
-pmover
RE: Off-gas Analysis
RE: Off-gas Analysis
The solid is bitumen ore (aka tar sand) from a mining operation. The tar sand is being transported inside of closed buildings via open conveyor belts, and there will be odour and fume generation from the material as a result. I want to determine exactly what chemical components this ore is off-gasing into (so that I can reference published TLVs) and also their generation rates (so that I can properly determine a ventilation rate to maintain concentrations below the TLVs).
Does this help?
Thanks.
RE: Off-gas Analysis
RE: Off-gas Analysis
1. Take a sample and run it through a Gas Chromatograph. It'll separate out the butanes, propanes, methanes, octanes......and give you relative concentrations.
a. There are LAB GCs that process a sample at a time.
b. Process GCs suck a stream of sample out of the stuff going by the probe, so you'll know if concentration changes in near real-time.
To address your actual need, if what you really want to know is whether you are accumulating explosive vapors, stick a bunch of flammable gas monitors in the buildings....Floor mount for heavier-than air fractions, and rafter-mount for Lighter fractions.
RE: Off-gas Analysis