油气冷凝和吸附集成回收工艺的研究  

Study on Integrated Process of Condensation and Adsorption for Gasoline Vapor Recovery

作　　者：石莉[1] 黄维秋[1] 胡志伦[1] 蔡道飞[1] 王红宁[2] 

机构地区：[1]常州大学油气储运技术省重点实验室,江苏常州213016 [2]常州大学石油化工学院,江苏常州213164

出　　处：《石油学报（石油加工）》2014年第1期87-93,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(21101017);江苏省高校自然科学研究重大项目(11KJA610002);江苏省科技支撑计划(社会发展)(BE2011651)资助

摘　　要：提出了油气冷凝和吸附集成回收工艺,并对其回收效果进行了模拟和实验研究。考虑到太阳能作为动力能源供给,开发了冷凝和吸附集成回收装置,利用Aspen Plus软件灵敏度分析工具,对4种不同浓度的汽油油气冷凝过程进行了模拟,并进行了实验验证。结果表明,冷凝段的冷凝温度可以设计在-25℃左右,此时回收率在50%以上;当冷凝温度为-25℃时,油气回收率的实验值与模拟值吻合。该集成工艺回收装置的油气回收率达到99%以上,出口油气质量浓度低于7.7g/m3,可以达标。吸附剂动态吸附容量可达0.24kg/kg,通过高真空解吸及微量氮气吹扫,饱和吸附剂可被完全解吸。该工艺的吸附热效应远低于纯吸附法,从而进一步提高了系统的安全性和经济效益。The integrated recovery technology of condensation and adsorption was proposed,and then the recovery unit was developed.Further,the recovery effects were tested.The condensation processes of four gasoline vapor samples with different concentrations were simulated by using the sensitivity analysis tools from Aspen Plus.Considering the solar power as the energy source,the condensation temperature would be designed at-25℃,when the recovery efficiency was over 50%.The experimental results were in good agreement with the simulation results at the condensation temperature of-25℃.The vapor recovery efficiency of the integrated unit was up to 99% with the outlet vapor concentration of below 7.7 g/m3,which could well meet the national emission standard.Herein,the adsorption capacity of the adsorbent was 0.24 kg/kg.The saturated adsorbent could be desorbed by vacuum and further swept by nitrogen to achieve better desorption efficiency.Compared with the single adsorption process,the heat effect of the integrated process was far less,which could further improve the safety and economic benefit of the system.

关 键 词：油气 冷凝 灵敏度分析 吸附 回收率 出口浓度 热效应 

分 类 号：TE85[石油与天然气工程—油气储运工程] X74[环境科学与工程—环境工程]