During the last five years, Oxymat has specialised in the design and development of large tonnage units for oxygen and nitrogen and, the company says, “we have done it with considerable success.”

Described as ‘the crown of Oxymat’, these tonnage units are based upon pressure swing adsorption (PSA) systems technology.

In a 20 ft. container frame, the company can supply a fully operational plug-and-play unit of up to 10 tpd (tons per day) of oxygen or up to 100 tpd of nitrogen. The units are redundant as they are modular in their build-up with three to six PSA systems ensuring gas supply at any time.

More than 50 units are already in operation worldwide and Oxymat’s order pipeline counts ‘a long list of new projects’.

Easy transport and trouble-free installation

The units can be trucked and the footprint is considerably smaller than other systems, the positive consequence of this being huge savings on transport.

Installation of the full line, including air package, can be done in one to five days and up to two Oxymat engineers always follow the installation and provide on-site training with end-users of the system. Vacuum-pressure swing adsorption (VPSA), cryogenic systems or other PSA systems require three to five times longer installation time.

The units can be placed under a shelter in frost-free regions, saving large investments in housing. A simple concrete foundation is preferred; however, the systems from Oxymat are fully operational even if placed on bare ground.

Systems are also prepared for remote control either via LAN cable to a central control point, with a laptop delivered together with the system, via GSM modem, or internet to a headquarter. The control system is accessible from Oxymat, which enables monitoring of all parameters in its 24/7 service centre.

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If an extremely high purity is not required, PSA systems can prove more cost-effective than traditional cryogenic distillation or stored product, hence why PSA technology finds use across an array of industries and applications.

PSA technology can commonly be found in the final stage of commercial synthesis of hydrogen for use in oil refineries, while it is also used to purify fuel gases derived from bio sources, and PSA technology is considered vital to some medical applications, particularly in developing countries where compressed cylinder or bulk cryogenic access is not feasible – as Oxymat has recently underlined itself in South East Asia.

Whether it’s on-board ships, in Saharan Africa or Greenland, at high altitude or in use in a developing healthcare infrastructure, PSA systems can be deployed to work in many conditions and are often competitively priced with their more established cryogenic alternatives. Plenty of PSA systems manufacturers can attest to such a statement.

For Oxymat, PSA-based tonnage plants are its ‘crown’.