Covestro has succeeded in putting carbon dioxide to use as a component for polyol production and replaced around 20% of the oil used. The newly developed process makes high demands on equipment: high system pressure, the gas content in the product, a minimal allowable temperature increase as well as flushing of the system with solvents.The safety aspects required use of a hermetic seal, magnetic coupling to ensure reliable pump operation. This required a new development as the pump is one of the installation's key components Witte was more than up to the job ! ![]() |
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