doi:10.16597/j.cnki.issn.1002-154x.2026.02.011

年产30万吨硫酸法烷基化装置用能分析及优化研究

周赛
（中国石化扬子石油化工有限公司化工厂，南京210048）

摘 要 介绍了年产30万t硫酸法烷基化装置的能耗组成，分析了其1.4 MPa蒸汽和电耗量高的原因，采取了分馏塔降压、低负荷节能罐D-206旁路操作、机泵运行调整、反应器参数优化等9方面的措施，装置综合能耗由开工初期的每吨烷基化油能耗165 kg标油降低至130 kg标油。结合装置实际情况，提出了回收利用工艺介质和凝结水低温热、采用流出物聚结吸附耦合处理技术替代碱水洗工艺、增设机泵变频器等技改建议。本研究的相关措施对同类装置节能优化具有借鉴意义。

关键词 硫酸法烷基化 能耗 措施 节能优化

Energy Analysis and Optimization Study of a 300 000 Tons Per Year Sulfuric Acid Alkylation Unit

ZHOU Saisai
(Chemical Plant, Sinopec Yangzi Petrochemical Co.,Ltd., Nanjing 210048, China)

Abstract This paper introduces the energy consumption composition of a 300 000 t·a⁻¹ sulfuric acid alkylation unit, analyzes the reasons for the high consumption of 1.4 MPa steam and electricity, and implements nine measures, including reducing the operating pressure of the fractionation tower, bypass operation of the energy-saving drum D-206 in low-load, adjustment of pump operations, and optimization of reactor parameters. As a result, the unit's consumption has decreased from the initial 165 kg standard oil · t⁻¹ alkylate to below 130 kg standard oil / ton alkylate. Based on the actual conditions of the unit, several suggestions are proposed, such as recovering and utilizing the low-grade heat from process media and condensate water, adopting effluent coalescence-adsorption to replace the alkali washing process, and installing variable frequency drives for pumps. These measures provide valuable insights for energy-saving optimization in similar units.

Keywords sulfuric acid alkylation energy consumption measures energy-saving optimization