unclesyd-
Do you have direct experience with the hydrokinetic cleaning method per the link you posted?
We have a process where we make an alumina slurry, and we have to shut down every 18 months or so to clean buildup on pipewalss, equipment, etc.
Currently we do this by circulating caustic...
Thanks all for your suggestions.
To answer your questions, the TI's are located about 180 degrees apart on the tower- so maldistribution could be a factor, but due to the fluctuations it would be something that comes and goes- perhaps as a function of loading?
I am checking on the length of the...
I would like to add that, even if the discharge is below the AIT, that dooes not mean that you are out of the woods as far as the dischagrge being safe (assuming it is going to atmosphere). It is still possible that a vapor cloud could be formed and it could find an ignition source. Heptane...
That is what is puzzling; I see no other barupt canges to the tower operation that happens at the same time. Usually, flooding in structured packing is indicated by a spike in pressure drop or a sudden change in product purity. I don't see either of these.
We do have a self-cleaning strainer that we use successfully on the cooliong water supply to some plate exchangers in our unit. I am sorry that I do not have any details on the construction, but the way that I understand it works is that it has a scraper or wiper that rotates on a periodic...
I am currently involved in a project where we are looking at installing a new flare for emergency relief valves and we are faced with the same question. The practice that we are using to define fire zones is to do it based on drainage within the process unit. We look at high poins of grade...
I have a distillation column with structured packing where I have recently relocated two thermocuples. They were moved from the top of the tower, where there is little temperature profile, to the bed below the feed, where there were existing thermowells but no elements.
Since moving them...
I have gotten much use out of "Practical Process Engineering" by Sandler & Luckiewicz. They go into a lot of detail on piping hydraulics, including complex flow, but they also cover many other topics, such as P&ID's , materials of Construction, Heat Exchangers, Pumps, Vacuum equipment...
The heat transfer coefficient in the vapor space is lower than the liquid, so the roof is less economical; however, I have seen it done even down here in Louisiana!
I have done the calculations but don't have them handy. If it's worth doing anywhere I'm sure Canada would be a place where...
We have had a similar, but not exactly the same, issue in our plant, where we have two towers- one a distillation column and one a steam stripper, that have fin-fan condensers that have become bottlenecks.
The difference is that yours sounds like it is a partial condenser, and you cannot...
