芳烃抽提劣化溶剂环丁砜在线净化技术的应用

Application of On-line Purifi cation Technology of Degraded Solvent Sulfolane in Aromatics Extraction Unit

在炼油厂芳烃抽提工艺中,溶剂环丁砜的劣化一直是影响装置平稳运行的一个重要因素。本文将劣化的环丁砜采用活性炭与离子交换树脂串联进行净化,不仅有效脱除了劣化环丁砜中的酸性物质及氯离子,而且降低了环丁砜中固体颗粒物含量,有效提高了劣化环丁砜的品质,同时也解决了芳烃抽提溶剂发泡问题,为装置平稳运行提供了可靠的保障。

In the aromatics extraction process of refinery,the deterioration of solvent sulfolane has always been an important factor affecting the smooth operation of the unit.In this paper,the degraded sulfolane is purified by using activated carbon and ion exchange resin in series,which not only effectively removes the acidic substances and chloride ions in the degraded sulfolane,but also reduces the content of solid particles in the sulfolane,effectively improves the quality of the degraded sulfolane,but also solves the foaming problem of aromatic extraction solvent,and provides a reliable guarantee for the smooth operation of the unit.