国产硫酸法烷基化精制系统中脱酸技术开发与应用

Development and application of deacidification technology in domestic sulfuric acid alkylation refining system

烷基化油是国Ⅵ汽油质量升级的关键调和组分,在国内市场的需求量和产能不断扩大的情形下,如何提高烷基化产品的质量和生产过程的清洁是烷基化发展的重点方向。本文综述了硫酸法烷基化反应流出物处理技术现状,简述了STARCTCO工艺中传统酸洗、碱洗、水洗湿式处理技术流程,并重点介绍了纤维强化聚结分离技术在国产SINOALKY工艺中的工程开发及成功应用。基于实验研究和侧线试验,在国产硫酸法烷基化反应流出物处理领域开发出多级精细聚结干式处理技术。精制系统中干式脱酸技术的开发与应用显著降低了能耗和相关环境污染,提高了装置的环保性,有助于我国烷基化技术的绿色低碳发展。

Alkylated oil is the key blending component for the quality upgrade of theⅥgasoline,and its market demand and production capacity in China continue to increase.The quality of alkylation products and the cleanliness of the production process are the keys of alkylation development.This paper reviews the current status of treatment technology of sulfuric acid alkylation effluent.It briefly describes the traditional wet treatment STARCTCO process by acid washing,alkaline washing and water washing,and highlights the engineering development and successful application of fiber reinforced coalescence separation technology in domestic SINOALKY process.Based on the experimental research and the sideline test,the multi-stage fine coalescence dry treatment technology was developed.The application of dry deacidification in refining system significantly reduces the energy consumption and related environmental pollution,and hence contributes to the green and low-carbon development of alkylation technology in China.