摘要
针对站场天然气的放空回收问题,设计了可回收5000 m^(3)放空气的吸附法放空回收工艺,并基于Aspen HYSYS和Aspen Adsorption软件建立了放空气吸附回收过程的仿真模型。通过对吸附回收过程的仿真模拟,完成了吸附回收-解吸利用的全过程动态模拟,得到了吸附床层内单位吸附量的变化,并对吸附法放空回收的工艺性能进行了评估。计算了不同操作条件下的回收时间、能耗和回收率,从工程实际的角度分析环境温度下储存量和吸附热管理的问题,吸附法回收单位气体的平均能耗为0.275(kW·h)/kg,吸附罐内最高温度为328 K,在9.6 min回收时间可实现高达87.1%的回收率,适用于小排量放空天然气回收过程。
For vented gas recovery at station sites,an adsorption method-based vented gas recovery process capable of recovering 5000 m^(3) of vented gas was designed,and a simulation model for the vented gas adsorption recovery process was established using Aspen HYSYS and Aspen Adsorption software.The simulation successfully finished the whole-process dynamic simulation of adsorption recovery-desorption utilization.Through the simulation,the variation in unit adsorption capacity within the adsorption bed was obtained,and the process performance of the adsorption method-based vented gas recovery was evaluated.The recovery time,energy consumption,and recovery rate under different operating conditions were calculated,and the problems related to storage capacity and adsorption heat management at ambient temperature were analyzed from the perspective of engineering practice.The average energy consumption of unit gas recovery by adsorption method is 0.275(kW·h)/kg,with the maximum temperature in the adsorption tank reaching 328 K.A recovery rate of up to 87.1% can be achieved within a recovery time of 9.6 min,showing that this method is suitable for small-scale vented natural gas recovery processes.
作者
潘彪
代龙宇
孙晓阳
孙恒
左丽丽
桑海博
PAN Biao;DAI Longyu;SUN Xiaoyang;SUN Heng;ZUO Lili;SANG Haibo(PipeChina Beijing Pipeline Co.,Ltd.,Beijing 100020,China;Beijing Key Laboratory of Urban Oil and Gas Transmission and Distribution Technology,Key Laboratory of Petroleum Engineering,Ministry of Education,National Engineering Research Center for Oil and Gas Pipeline Transportation Safety,China University of Petroleum(Beijing),Beijing 102249,China)
出处
《石油化工》
北大核心
2025年第3期395-402,共8页
Petrochemical Technology
关键词
吸附法
放空气回收
动态模拟
adsorption method
vented gas recovery
dynamic simulation
作者简介
潘彪(1976-),男,北京市人,硕士,高级工程师,电话13520568356,电邮panbiao@pipechina.com.cn;联系人:孙恒,电话13863436778,电邮13863436778@163.com。
