PSA pressure measurement and control system

A method of monitoring a pressure swing adsorption (PSA) system including a plurality of vessels having one or more layers of adsorbent material therein, a feed gas channel connected to the plurality of vessels via a respective first conduit with a first valve, a waste channel connected to the plurality of vessels via a respective second conduit with a second valve, a product channel connected to the plurality of vessels via a respective third conduit with a third valve, and a parallel channel connected to the plurality of vessels via a respective fourth conduit with a fourth valve, said method comprising:

• performing a PSA cycle using the plurality of vessels;
• measuring a pressure within at least the parallel channel during the PSA cycle;
• and
• monitoring of the performance of the PSA cycle using the measured pressure within the parallel channel.

A method of monitoring a hydrogen generator system including a reactor connected to a pressure swing adsorption (PSA) system including a plurality of vessels having one or more layers of adsorbent material therein, a feed gas channel receiving feed gas from the reactor and being connected to the plurality of vessels via a respective first conduit with a first valve, a waste channel connected to the plurality of vessels via a respective second conduit with a second valve, a product channel connected to the plurality of vessels via a respective third conduit with a third valve, and a parallel channel connected to the plurality of vessels via a respective fourth conduit with a fourth valve, said method comprising:

• measuring a pressure of flow upstream of the reactor;
• measuring a pressure within the product channel during performance of a PSA cycle using the plurality of vessels;
• and
• monitoring pressure drop across the reactor using the measured pressure of flow upstream and an average of a high pressure value measured within the product channel.