Hydrogen production unit: Disconnect the hydrogenation reactor before starting up or shutting down the cycle
Thread Content
A pre-cutoff before the hydrogenation reactor is installed to prevent CO and CO2 from entering the reactor and undergoing methanation, which could cause the bed temperature to rise excessively. Why does methanation occur? Principle of the methanation reaction: Under certain temperatures and in the presence of a methanation catalyst, CO and CO2 react with H2 to produce CH4 and water vapor; it is a process that results in a reduction in volume along with intense heat release. What is a methanation catalyst? Does the hydrogenation reactor contain any components of a methanation catalyst? If not, how does the reaction take place? Or can the reaction take place without a catalyst, as long as the temperature is high enough? Let’s discuss this together
It’s theoretically possible, and in practice some people have actually experimented with it; it’s not as scary as one might think
It’s mainly due to the reduction of the catalyst, I guess
The hydrogenation reactor in hydrogen production plants is primarily vulnerable to reduction