Separation processes for the wear protection of machines and the treatment of oils and fuels have been part of the equipment of ships with a motor drive for several decades. On account of increased internationally valid environmental standards for the protection of the seas, the application of other processes on ships became necessary in last decades. Also with the offshore-oil extraction, the application area of separation processes on the open sea was substantially extended. Processes were added, hence, for the treatment of water, oils and gases on offshore drilling and extraction rigs.
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