Hi StoneCold
Thanks for the try - but I live in the frozen north - we can get down to -40 °C and the freezing point of 36% HCl is about -30 °C (depending on which literature source you look at).
oil0128
You will need more than just steam traps - you will need proper layout which should include "drip legs".
I absolutely agree with europipe - go to the spirax-sarco website for free details. What is even better, is to get a copy of their handbook "The Steam and Condensate Loop - An...
Hi Micalbrch:
Yes, the density of MOST liquids does increase as the temperature decreases (i.e. the liquid shrinks). However, a particular exception is water where the density increases until 4 °C (39.2 °F if you're south of the line) and then it decreases again. The density of ice is less than...
Does anyone have any information on the freezing behaviour of 36% hydrochloric acid solution - specifically, does this solution expand on freezing, like water? It's one thing to land up with a pipe blocked by frozen solution - quite another thing to have a pipe rupture!
I've contacted various...
Steve:
Many thanks for your response - that's really helpful and gives me at least a basis for evaluating this proposal.
And yes, it will be junked if there is an event or even before. We are moving equipment from an existing plant where the lines are PTFE-lined steel; once the existing plant...
Cheute79:
Thanks for your quick reply - and it was useful to know that you had thought along similar lines.
I'm not sure though, if perhaps there was a misunderstanding - the gas stream is almost 100% HCl, not 2%. Even so, I'm inclined to think it will hold up under these conditions for the...
Does anyone have or know of any data for rate of attack of hot moist hydrogen chloride gas on mild steel?
Conditions are pressure up to 100 psig; temperature up to 300 °F; mass fraction HCl up to 0.98 with balance water vapour and traces of air.
We are considering temporary use of mild steel...
