They serve for the purification and separation of gas mixtures. Cryogenic separation technology and physical or chemical scrubbing processes come into application for these units that frequently are inquired by engineering companies implementing them as single units within a larger contract plant. Independently end users may install them as supplement to existing gas generation facilities.
Gas processing plants are to a large extent based on Linde's proprietary process and production know-how. The units are tailored to the individual application and requirement of the client. Plant design and scope of supply will typically include several proprietary equipment items produced in Linde workshops like plate-fin heat exchangers, coil-wound heat exchangers or the isothermal reactor. Frequently such equipment will be assembled in the workshop and supplied to site as coldbox.