Plant separating mixed polyglycol and ethylene leaking from compressor lubrication duty

摘要

The separation plant, connected to the leakage collection line (30), purifies the polyglycol, returning it to the lubrication system. Preferred features: Leakage (30) enters the ethylene stripper. The high internal energy of the influx is released at the inlet. An impact baffle (32) made of sintered bronze opposes the influx. Ethylene stripped passes (33) into the storage vessel (34). Enriched polyglycol in the storage vessel base leaves via the bottom connection (35) for the stilling tank (36) where residual ethylene in the polyglycol is released under atmospheric pressure. The ethylene leaves via the head line (37), recycled by a fan (38) to the compression process. The filter (41) is a sieve or centrifugal filter. Lubrication system pumps (15, 15a) take polyglycol from the reservoir to compressor (4-11) lubricant channels.