摘要
西安石化分公司催化裂化装置120kt/a液化气脱硫醇单元采用富氧氧化再生技术对传统空气氧化工艺实施改造。结果表明,改造后碱液氧化再生的总效率较传统工艺明显提高,碱液氧化后生成的二硫化物与碱液的分离度较高,尾气中的二硫化物浓度降低,碱液使用周期延长,液化气精制成本比原工艺降低了68%左右,并且具有较好的环保效益。
Oxygen-enriched oxidative regeneration technique was substituted the conventional air oxidation process at the 120 kt/a LPG sweetening unit of FCCU of Xian Petrochemical Company. Measures including oxygen-enriched air used as oxidant source, using a gas-liquid distributor to replace the packing in oxidation column and etc. , were adopted. The application results showed that as compared with the conventional oxidation process, the oxidation efficiency of alkali waste regeneration was improved significantly; the separation of bisulfide from alkali liquor was good, thus the bisulfide content in tail gas was reduced and the service life of alkali liquor was prolonged. The cost of LPG sweetening reduced 68% ,and environmental benefit was significant as well.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2007年第11期25-28,共4页
Petroleum Processing and Petrochemicals
关键词
液化气
脱臭
碱渣
氧化
再生
liquefied gas
sweetening
alkali waste
oxidize
regeneration
