I have synthesized hydrogen (H2) as lateral product in the reactor. The existence of H2 cause reaction reversibility, and it is bad. I want to decompose (or eliminate) H2 anyway due to its disturbance for the product.
Certainly you have a reduction reaction, and cannot use a oxydant in the system, but if you can flash or take hydrogen as gaseous phase, you can oxydate it outside the reactor, generating water.
Thank silas, I have a reactor with a height of 15 cm and a diameter of 5 cm. I want to prepare diazonium dyes by special method after 30h in 250 degree centigrade but hydrogen produce too. If I wait cooling reactor to ambient temperature, hydrogen again destroys dyes. Can I cool sudden reactor by ice bath? Isn't it dangerous? If I want to take hydrogen outside, solvent and other product goes outside too.
Big trick! is it possible to make a small reflux column on the top? This way you can condense the solvent and separate the gas to treat, removing them from the reactor.
Thanks very much. It is a good idea, but how separate hydrogen from solvent? Can you explain (or draw) more about the reflux column diagram? Moreover, four reactants exist in reactor that all boil in 250 degree centigrade, hence these being removes along H2 and the solvent. I performed sudden cooling, but the sample became more destroy.
You connect on top of the reactor a vertical condenser, with a inside diameter sufficient to allow the vapor to go up and condense in the wall by a refrigerant cooling its external surface. this liquid has to return by the same pipe without clogging. The non condensable phase at cooling temperature will scape from the condenser and you may treat it. Of course you need to put some safety valve after the condenser to avoid the return of fire if the treated gas is burned, avoiding the return of the fire to the system.
You need to keep the ratio of headspace/solution volumes as high as possible and shake your reactor from time to time. Almost all H2 will be in the gas phase of your reactor. Keep in mind that a part of your solvent will be evaporated and stay in the headspace of the reactor as a vapor.
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