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Frequently Asked DEHY Questions
Yes, BTEX stands for the volatile organic compounds: benzene, toluene, ethylbenzene, and xylenes. In particular, benzene is a hazardous substance that can lead to fatal diseases, disorders, respiratory issues, and more.
OSHA defines a permissible amount of exposure to benzene. OSHA requires employers to offer medical assistance to employees exposed to benzene at a concentration at or above 0.5 ppm as an 8-hour time-weighted average.
Yes, operators are required to continuously monitor temperature, as mandated by 40 CFR 60.5417b(d).
You can safely condense the wet gas from your reboiler and still column using our ambient, forced-draft, and our combustion control devices.
EPA guidelines say that you must have at least 100% containment in a closed-vent system.
The entire glycol stream should be ”slipstreamed” to the shell tube – the entire glycol volume is not required. Using too much glycol can result in excessive cooling of both liquids and glycol – particularly in winter in North Dakota. This increases firing and gas consumption in the reboiler.
You can keep up with your local emissions regulations with removal and destruction of BTEX vapors using a combination of the Spiral X Governance module and our BTEX solutions.
Check circulation rate, filters, flow rate, and y-strainers.
Check your gas flow rate, temperature of the contactor, and pressure.
Salt contamination is difficult to remove. Therefore, prevention is the best solution. salt deposits (or chlorides) can be prevented with an efficient upstream scrubber in your glycol plant. Salt deposits can accelerate equipment corrosion, reduce heat transfer in the reboiler fire tubes, cause hot spots and failure in fire tubes, and alter specific gravity readings when a hydrometer is used to determine glycol-water concentrations.
Liquid hydrocarbons, a result of carryover with the incoming gas or condensation in the absorber will increase glycol foaming, glycol degradation, and glycol loss. They must be removed with a glycol-gas separator and/or activated carbon beds.
According to ARC Energy – “dehydrator regeneration duty, stripping gas, and reboiler performance directly impact BTEX unit sizing and operational risk.”
Need to Speak to an Associate?
- johnny@spiralxllc.com
- +1 469-480-8802
- Monday- Saturday: 7:00 am - 4:00 pm CT
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Vertical Shell & Tube heat exchangers transfer heat between insulated glycol and BTEX vapor where no electricity is present. Capabilities increase in cold weather regions with conduction heat exchange.
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