浆态床渣油加氢膜分离系统方案选择
SCHEME SELECTION OF MEMBRANE SEPARATION SYSTEM FOR SLURRY BED RESIDUE HYDROCRACK-ING UNIT
李征容 1李国瑞 2王帅立 2杨志永2
作者信息
- 1. 中国石化工程建设有限公司,北京 100101
- 2. 山东裕龙石化有限公司
- 折叠
摘要
以某新建石化项目为例,讨论了浆态床渣油加氢裂化装置膜分离设置的2种方案.其中,方案一的一级渗透气压力5.50 MPa(表),送至新氢压缩机一级入口,二级渗透气压力2.80 MPa(表),送至下游PSA装置;方案二的一级渗透气压力9.50 MPa(表),送至新氢压缩机二级入口,二级渗透气压力2.80 MPa(表),送至下游PSA装置.方案二对比于方案一回收了压力能,降低了系统能耗;方案一较方案二,膜分离投资费用相对较低,同时有利于设备的询比价,在维持较高的一级渗透气氢气纯度和回收率的情况下,较低的一级渗透气压力技术壁垒更低,国内主流膜分离技术均可满足要求.通过这两种方案的比较,为今后高压加氢装置膜分离方案选择提供了参考.
Abstract
This paper takes a new petrochemical project as an example to discuss two schemes for the membrane separation of slurry bed residue hydrocracking unit,providing reference for the selection of membrane separation scheme for high-pressure hydrocracking unit in the future.In Scheme A,the primary permeable gas,with a pressure of 5.50 MPaG,is sent to the first stage inlet of make-up hydrogen compressor,and the secondary permeable gas,with a pressure of 2.80 MPaG,is sent to the downstream PSA unit.In Scheme B,the primary permeable gas,with a pressure of 9.50 MPaG,is sent to the second stage inlet of the make-up hydrogen compressor,and the secondary permeable gas,with a pressure of 2.80 MPaG,is sent to the downstream PSA unit.Compared with Scheme A,Scheme B recovers pressure energy and reduces energy consumption,but has higher investment cost.While maintaining a high purity and recovery rate of primary permeable gas hydrogen,the technology with lower primary permeable gas pressure has lower technical barriers,and most of the domestic membrane separation technology can meet the requirements.
关键词
膜分离/高压加氢/渗透气/浆态床Key words
membrane separation/high-pressure hydrogena-tion/permeable gas/slurry bed引用本文复制引用
出版年
2024
NETL
NSTL
万方数据