We offer a broad service portfolio in chemistry with the target to considerably shorten standstill duration for inspections, revisions, and production facility maintenance.
Gases that are used for service are not toxic, combustible, or corrosive, and their utilization is not in contradiction with the requirements for environmental protection. As they considerably reduce the fire or explosion risk, they enhance the safety within equipment commissioning or during standstills.
Pipework cleaning with the Sandjet® method
Cleaning is made by internal pipeline surface mechanic jetting by abrasive material that is carried by the inert gas (nitrogen) flow. The abrasive material can be used repeatedly.
Mixture of helium and nitrogen is used as detection agent. The tightness test is carried out under operational overpressure in the entire equipment or in separated equipment parts.
Desiccation of pipework, production units or their parts is done by nitrogen that is heated up to the required temperature.
To enable maintenance activities at shut down reactors, their fast cooling is required. The CatCool® and LinBlow® methods are used for controlled liquid nitrogen injection to the cooling gas in the circulation circuit. As the total reactor cooling time to the required temperature is therefore considerably shortened, the total shutdown period of the equipment can be shortened significantly.
Pipework cleaning and inspection
Special equipment is pushed through the pipework by high-pressure nitrogen and, at the same time, the technologic medium is pushed out from the pipework to the storage vessel. Within this operation, deposits at the internal pipeline walls are removed and the pipeline is inertised by nitrogen. At the same time, pipeline surface may be controlled by a video-camera.
Mobile natural gas supply
Long-distance or regional gas pipeline reconstruction, relocation, and maintenance – all this requires temporary shut down of the gas pipeline. The gas supply interruption may cause the production line shutdown in chemical production plants. We are able to secure a continuous natural gas supply from a mobile source in these cases. This mobile source of ours is energetically independent, highly reliable, and safe.
Dry ice jetting
By the CRYOCLEAN® method, the surfaces to be cleaned are “bombarded” by dry ice pellets with the temperature of -78°C at high speed. The carrying medium of the pellets is pressure air. While hitting the surface to be cleaned, dry ice immediately gasifies and the released energy removes impurities from the surface. No undesirable residuals remain after this method application; the cleaned surface is dry. In chemical industry, this method is suitable mainly for heat exchangers, pipeline, and stirrer cleaning.