Patent ID: 7988753

Claim:
A method for recovering and recycling hydrogen from a reforming process comprising: pressurizing of at least one hydrogen-rich gas stream exiting at least one catalyst lock hopper to a desired pressure, delivering at least a portion of the pressurized hydrogen-rich gas stream to at least one predetermined location; maintaining at least the pressure of the hydrogen-rich gas stream in a stable condition prior to the pressurized hydrogen-rich gas stream being delivered to the predetermined location; maintaining the desired pressure of the hydrogen-rich gas stream by minimizing surges or changes in the hydrogen-rich gas stream exiting the catalyst lock hopper by flowing the gas stream exiting the lock hopper through a surge minimizing means; further maintaining the desired pressure level of the hydrogen-rich gas stream by directing at least a portion of the pressurized hydrogen-rich gas stream to a means for regulating the desired pressure of hydrogen-rich gas in the hydrogen recovery process; and further maintaining the desired pressure level of the hydrogen-rich gas stream by controlling the regulating means with a first, or feedforward, controller means to keep the hydrogen-rich gas stream within previously determined parameters.