摘要
利用HYSYS流程模拟软件构建了某高含硫天然气净化厂两级吸收塔模型,重点研究了脱硫溶剂循环量、再生蒸汽用量等因素对脱硫单元能耗的影响,并以此指导工业实践。实践结果表明:贫液循环量和半富胺液循环量显著影响重沸器蒸汽用量,进而影响脱硫装置能耗;总循环量显著影响贫溶剂泵、尾气吸收塔底泵、再生塔底贫溶剂泵工况,且贫液循环量的影响更大。采取了优化溶剂循环量、降低溶剂再生蒸汽用量等措施。每降低贫液循环量5 t/h,脱硫装置可节省蒸汽约0.5 t/h,节省总电耗246(kW·h)/h,总计可降低脱硫装置能耗10%以上。
A two-stage absorption tower model of a high-sulfur natural gas purification plant was constructed using HYSYS process simulation software.The focus was on studying the impact of factors such as the circulation volume of desulfurization solvent and the consumption of regeneration steam on the energy consumption of the desulfurization unit,while guiding industrial practice.The practical results show that the circulation volume of lean solvent and semi rich amine solution significantly affects the steam consumption of the reboiler,which in turn affects the energy consumption of the desulfurization unit.The total circulation volume has a significant impact on the operating conditions of the lean solvent pump,the tail gas absorption tower bottom pump,and the lean solvent pump at the bottom of the regeneration tower,with the lean solvent circulation volume having a greater impact.Measures such as optimizing the solvent circulation volume and reducing the consumption of solvent regeneration steam have been taken.For every 5 t/h reduction in lean solvent circulation volume,the desulfurization unit can save about 0.5 t/h of steam and 246(kW·h)/h of total electricity consumption,resulting in a reduction of over 10%in the energy consumption of the desulfurization unit.
作者
曹文全
杨洋
陈奇
吴小龙
张俊
杜明
张文焕
Cao Wenquan;Yang Yang;Chen Qi;Wu Xiaolong;Zhang Jun;Du Ming;Zhang Wenhuan(Guangyuan Natural Gas Purification Co.,Ltd.,SINOPEC Southwest China Petroleum Bureau,Guangyuan,Sichuan 628000;CNNC Sichuan Environmental Protection Engineering Co.,Ltd.,Guangyuan,Sichuan 628000)
出处
《炼油技术与工程》
2025年第12期14-17,共4页
Petroleum Refinery Engineering
关键词
天然气脱硫装置
能耗
塔板数量
贫胺液循环量
半富胺液循环量
再生蒸汽用量
硫化氢含量
总硫
natural gas desulfurization unit
energy consumption
number of trays
lean amine solution circulation volume
semi rich amine solution circulation volume
regeneration steam consumption
hydrogen sulfide content
total sulfur content
