TexasCHLforum.com

puma guy wrote: ↑Tue Feb 23, 2021 10:45 am

Liberty wrote: ↑Mon Feb 22, 2021 7:53 pm

philip964 wrote: ↑Sun Feb 21, 2021 5:37 pm

dhoobler wrote: ↑Sun Feb 21, 2021 2:47 pm

MaduroBU wrote: ↑Sat Feb 20, 2021 12:00 am

My understanding is that the amount of water vapor in the natural gas going through the pipelines was high enough to be a problem at very low temperatures, thus the clogs were dependent upon the freezing temperature of water, not the gas itself.

Pipeline natural gas is dried to a maximum water content of seven pounds per million standard cubic feet. That works out to about 0.014 mole percent. It has a dew point of -40 F (-40 C). It is unlikely that water froze in the natural gas pipeline and contributed to the grid failure.

So I read somewhere froze at the wellhead.

It also froze at the condensate units themselves. Although I haven't heard anything specifically, but pressures tend to decrease with temperature. Refineries produce natural gas, Those plants had problems.

Most catastrophes aren't the result of a single point of failure but are the result of multiple smaller incidents that combine together to create a much larger failure.

The strangest thing to me is I've heard no one complain of losing natural gas supply to their home or business. I haven't found any substantiated report of the natural gas freezing phenomenon that is being reported. I can accept that control devices froze, but with no real evidence presented I remain skeptical gas froze in the lines. I guess we'll have to wait for the investigation. Refineries do produce off gas during the distillation and cracking processes but rarely is methane separated. Most often the off gas is mixed with the natural gas supply to fire the furnaces. Some of the gas is too low pressure to join the fuel gas system , so it's run through compressors and equipment to knock out and remove any liquid constituents.