炼油厂回收尾气中氢气的技术方案研究
RESEARCH ON THE TECHNICAL SCHEME OF HYDROGEN RECOVERY FROM REFINERY EXHAUST GAS
李国瑞 1王帅立 1袁淑华1
作者信息
- 1. 山东裕龙石化有限公司,山东龙口 265700
- 折叠
摘要
针对某炼油厂新建20 Mt/a炼化一体化项目的氢气提纯系统配置及炼油厂尾气性质,确定在原有的氢气回收流程基础上进行流程优化,并通过详细的物料流量、产氢量、排放至燃料气管网尾气量、压缩机处理量、膜分离组件处理量、效益和投资核算验证优化方案的实施效果.结果 表明:采用膜分离和变压吸附(PSA)耦合工艺回收5号PSA装置解吸气中的氢气,新增氢气产量9 880.53 m3/h,炼油厂每年新增经济效益约2 549.86万元;而采用新建一套氢气PSA装置的方案,可新增氢气产量14 351 m3/h,但新建PSA装置需较大占地面积,难以集中布置在氢气提纯区域内.
Abstract
In view of the configuration of hydrogen purification system and the properties of exhaust gas of a newly built 20 Mt/a refinery of an enterprise,the scheme of process optimization based on the original hydrogen recovery process was determined.The implementation effect of the optimization scheme was verified by detailed material flow,hydrogen production,exhaust emissions to the fuel gas network,compressor handling capacity,membrane separation module handling capacity,and benefit and investment accounting.The results showed that the recovery of the hydrogen from the desorption gas of No.5 PSA(pressure swing adsorption)unit by membrane separation and PSA coupling process increased 9 880.53 m3/h,and the annual economic benefit of the refinery was about 25.498 6 million Yuan.However,the scheme of building a new hydrogen PSA unit can increase hydrogen production by 14 351 m3/h,but the new PSA cannot be centrally arranged in the hydrogen purification area because of its large footprint,as a result,the timeliness of operation and accident treatment is reduced.
关键词
炼油厂/尾气/氢气/膜分离/变压吸附Key words
refinery/exhaust gas/hydrogen/membrane separation/pressure swing adsorption引用本文复制引用
出版年
2024
NETL
NSTL
万方数据