Does anyone have information on the application of PSA in coal-based hydrogen production?

1. Pressure swing adsorption (PSA) technology is a low-energy gas separation technique. The pressure required for the PSA process is generally between 0.1 and 2.5 MPa, allowing for a wide range of permissible pressure variations. Some pressurized gas sources, such as the off-gases from ammonia plants and shift gases, already have pressures that meet the requirements of the pressure swing adsorption (PSA) process, thus eliminating the need for additional pressure augmentation and the associated energy consumption. When dealing with such gas sources, the energy consumption of PSA hydrogen production units is merely that associated with lighting, instrument power, and instrument air, resulting in very low energy usage ； The pressure loss of PSA units is very low, generally not exceeding 0.05 MPa ； 2. Pressure swing adsorption (PSA) units can produce product gas of high purity; for example, PSA hydrogen production units can yield product hydrogen with a purity of 98.0–99.999% ； 3. The pressure swing adsorption (PSA) process has a simple flow structure; it does not require complex pretreatment systems. It can separate multiple gases in one or two steps, and is capable of handling gas sources with complex compositions. It also has a high tolerance for impurities such as water, sulfides, ammonia, and hydrocarbons ； 4. The operation of the pressure swing adsorption (PSA) unit is automatically controlled by a computer; it features a high degree of automation and is easy to operate. It can start operating normally within a short time after being activated, producing qualified products. The pressure swing adsorption cycle is a cycle of adsorption and regeneration. During the adsorption phase, the adsorbent absorbs certain components from the gas mixture under pressure, while the components that are not absorbed pass through the adsorbent layer. Once the adsorbent becomes saturated with the components it has absorbed, the adsorption tower enters the regeneration phase, which is the desorption process.

This is also called solving a problem, but it’s solved in such a simple way!

Pressure swing adsorption for hydrogen production is the most mature pressure swing adsorption technology. There is no relevant specialized information. Universal