An eight bed PSA gas purification plant in a single production train configuration.
Industrial gas production essentials
The most critical challenge regarding industrial gas production is ensuring reliability and the subsequent availability of industrial gases in processes needing the supply, as for example in refineries and the chemical industry. In practice, this means maximizing uptime and a continuous, uninterrupted supply of gases. At the same time, profitability is an important parameter.
For plants serving refineries without intermission all year round, availability and reliability are absolutely essential to ensure uninterrupted production. Planned shutdowns are generally kept short. This places high demands not only on the process itself, but also on the plants’ components. Furthermore, plants typically hold high standards regarding the environmental efficiency of their production processes.
Gas production options
Industrial gas processes can be divided into three categories: membrane technologies, swing adsorption technologies, and air separation (ASU) technologies. These technologies have a lot in common from a product specification point of view, but they differ a lot in terms of production scale. Whereas air separation technologies are used in large-scale production, swing adsorption and, in particular, membrane technologies provide less output.
Different production environments
Membrane technology is based on the use of partially permeable membranes, which selectively allow gases to pass through the membrane while others are left in the basic gas stream. In terms of demands on valves, this method of separation is the least challenging.