Triethylene glycol regeneration unit
Thread Content
Natural gas gathering stations use the triethylene glycol absorption method to remove saturated water vapor from the gas produced by the wells; the triethylene glycol-rich liquid is then regenerated into a lean liquid using a regeneration unit, thereby enabling its reuse. The triethylene glycol regeneration unit uses flame tubes to burn natural gas in order to heat the triethylene glycol-rich liquid; how is safety ensured on-site? I have the impression that there is an open flame inside the device; if natural gas leaks at the station, it will be drawn into the flame tube along with the air through the intake openings. What would happen if its concentration reaches the explosive limit? I would like to ask the experts: how is this technique taken into account in terms of combustion science and fire separation distances?
The explosive limit of natural gas is roughly 5% to 15%. The combustion chamber already contains natural gas, and the concentration there is well above 15%; as a result, it will only burn and not explode.
What is the approximate concentration of natural gas in the flame tube? Are you considering it from the perspective of combustion?