I wanted to ask the readers from process groups if they worked with a low-pressure batch stirred hydrogenation reactor that they liked and could recommend – for us to buy. Specifically, we would need a hydrogenator that can accommodate 8-10 liters of a reaction mixture that has tendency to initially foam under reduced pressure (this means that the total available volume should be about 15-20 liters). Maximum operating pressure 3 bar would be enough, no heating or cooling is required and the typical solvent is water. I am not really interested in flow hydrogenation systems because they would be unsuitable to our particular case. A glass vessel or at least a glass window on the top would be nice to have, because of the foaming problem during evacuation. Thank you for your suggestions!I don't have a ton (pun not intended) of experience with mid-scale hydrogenators, but I've seen use of 10-20L reactors before (here's Parr's version -- they can't be cheap) (Here's a small one for sale at LabX!) They seem to do fine, from what I've seen. There are issues with the bolts (always), but I think that's just a problem with hydrogenators, as opposed to a problem with this particular model. Minimum stir volume/agitation issues can arrive, of course. Cleaning is a bear, but Milkshake probably knows that anyway. Oh, and I don't think there's a window.
Readers, what is your experience?