Better to check out Consolidated dual service trim--just out.
http://www.dresserconsolidated.com/index.cfm/go/product-detail/product/type_1900_universal_media_SRV/
It looks like a good option when you have a case where liquid and vapor are both credible.
In a continuous process connected to another continous process, a surge drum is often installed between them to allow variations in one process to be isoloated from the other process. For instance if PLANT1 output goes into PLANT2 with a surge drum, when PLANT2 slows down or speeds up it allows...
Thanks for that. It is hard for me to get my head around that much "static" mass not influencing the final temperature. But it impacts the "rate" not the final number. Thanks again!
Forgot to mention that the reaction mix flowrate through the reactor is around 10,000 kg/h and the catalyst mass (stays in the reactor as expanded bed) is around 75,000 kg.
I know the way to calculate the adiabatic temperature rise: Heat_of_Rxn/Cp. However, I have run into a bit of a sticky wicket. I need to calculate ATR of a fluid bed reactor with a large amount of metal catalyst. The heat capacity of the liquid and the catalyst are significantly different. Any...
My experience with aq. HCl shows tantalum to be best material of choice. To keep costs low, Astro metals in Texas can both line and coat a carbon steel pipe with ~100 mil tantalum and weld at the ends. They used to make chlorine spargers for me for direct photochlorination reactors for toluene...
Non specific to the question re SIS, but to the point of arriving at the scope of what to put into the SIS is the method selected for hazard mitigation.
The HAZOP method is good at determining the bulk of what goes wrong, but I submit that a Failure Modes and Effects Analysis (FMEA) is more...
This is a shot in the dark, but what I think I have seen on the Discovery channel is a process by which the article is wrapped in a "non-stick" material (Tyvek?)and a strange sort of liquid polystyrene is then poured half-way into a box. The wrapped article is placed on the now...
Another issue with methylene chloride is the permitting sometimes required by your local air quality authorities. Chlorinated solvents are becoming "bad guys" and are relatively hard to get the EPA or locals to buy into as a new chemical in your facility.
Another way to minimize the hazard of a runaway reaction is to limit the amount of material in the reactor. This line of thinking is what led to "pipe reactors" or low volume tubular reactors.
I am ignorant of your particular case; however, I would think about changing the reactor...
As previously stated, oxygen concentration depends on the purpose of the blanket. For chemicals that are flammable/explosive, it would be best to contact NFPA or other agency for data on MOC (minimum oxygen for combustion) and ensure that your N2 has no more than ½ of that value. If your...
Try a google search with "viton chemical resistance" in the search line. Omega has a tubing resistance chart. Viton is an "A" rating for TEA. If money is no object, go to DuPont web site an look at Kalrez. Chemraz is a [sic] competitor.
Valves typically used in anhy HF service include PTFE lined plug valves (Durco, nay Floserve or Xomox) and/or PTFE/PFA lined ball valves (Atomac or Tufline). Further, Alloy 20 or Hast C 276 used (plug valves) with success. Permiation will be a long term problem with any of the lined or sleeved...
