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公开(公告)号:US20050222478A1
公开(公告)日:2005-10-06
申请号:US10508983
申请日:2002-10-11
申请人: Wilfried Borgmann , Josef Kunkel , Helmut Fritz , Gerhard Lauermann , Roland Walzl , Klaus Muller
发明人: Wilfried Borgmann , Josef Kunkel , Helmut Fritz , Gerhard Lauermann , Roland Walzl , Klaus Muller
摘要: A method is described for processing an olefin-containing product stream (1) that contains, besides ethylene and propylene, longer-chain olefins and compounds of hydrocarbons with oxygen (oxygenates). Such a product stream (I) can occur in particular in olefin synthesis from methanol. The product stream is dewatered in successive process steps, optionally compressed in several steps and dried. Then it is subjected to fractionation. For removal of the undesired oxygenates it is proposed that the oxygenates be washed out of the gaseous product stream after the compression steps and before the drying step in a column (12) with methanol.
摘要翻译: 描述了一种用于处理含烯烃的产物流(1)的方法,其除了乙烯和丙烯外含有长链烯烃和具有氧(含氧化合物)的烃的化合物。 这样的产物流(I)特别可以在甲醇的烯烃合成中发生。 产物流在连续的工艺步骤中脱水,任选地按几个步骤压缩并干燥。 然后进行分馏。 为了去除不需要的含氧化合物,提出在压缩步骤之后和在用甲醇的塔(12)中的干燥步骤之前,将含氧化合物从气态产物流中洗出。