| 摘要 |
A method is described for process water treatment in olefin plants having at least one process steam generator (W 1 ) and at least one cracking furnace (O) for steam cracking of hydrocarbons. It is proposed to pass the process water for process water stripping to the process steam generator (W 1 ) and to feed the vaporized process water to the cracking furnace (O). The process steam generator (W 1 ) can be connected downstream of a stripping column (T 1 ), the process water, during cleaning of the stripping column (T 1 ), being fed directly to the process steam generator (W 1 ) for process water stripping, bypassing (B) the stripping column (T 1 ).
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