If you're using the energy from the exhaust to heat a process stream then you could be limited by the process stream's maximum temperature or by the amount of heat that economically feasible to remove. Most of the time, start with a 10 F approach.
You're saying that you don't have any data on the rate of heat generation. It looks to me like you need kinetic data on your fermentation. You can either find it where someone else has done the lab work or do an experiment with a small reactor. Fermentation of C6 data should be easy to find...
Most of the acids are formed on the front end of the process where you have a desalter. You form hydrated salts which ultimately make acids when you add heat. Caustic is added to the desalter to maintain pH. Caustic is also used on downstream condensers as a water wash to neutralize acids and...
When I was doing consulting, 99% of the time we set the relief valve setting to the MAWP of the vessel. The only time that we wouldn't would be for a case where the material would get too hot at the higher pressure. I would say that for this refinery, the previous mentality was that lower...
does your reactor have a cooler? D-Pipe? or What? How large is it and how much heat do you anticipate removing? Desired temperature? cooling water temperature? You really need to provide a little more detail.
I have an existing PSV on a butane bullet which is set at 250 PSIG. The PSV is too small for fire sizing. I have two choices: (1) Replace the PSV with a larger one or (2) Add an additional rupture disk to give the required relief rate. The vessel MAWP is 300 PSIG. I am thinking about...
I'm guessing that you are batching based on caustic/scrubbing liquid conservation. In this case, a recirculation loop with a cooler to remove heat would work well. Depending on the make-up amount, you could leave the level control as is or re-route the level addition to the sump. More details...
Does the vapor or scrubbing liquid flow swing? Does the discharge temperature stay constant? Since this is a quench/scrubbing column, how are you removing heat from the column?
I am a little confused. Is there a recirculation pump that isn't shown? Are you batching out the liquid in the sump based on pH or a lab analysis? I have done scrubbers a couple of different ways depending on the process. If you aren't using a recirculation pump and are varying the liquid...
I have a n-butane bullet with an existing relief valve. I am trying to provide supporting calculations for the relief valve, but can't even get close to the size valve that is installed. Blocked in is applicable and results in a small valve. As far as fire sizing, the butane will vaporize if...
We have had problems with our propane failing the copper strip corrosion test. We recently started more frequent testing of our propane. We have also recently switched KOH manufacturers. We don't routinely test upstream of the KOH treater, but anytime that we have--the results turned out...
