中间罐尾气回收装置的运行及其改进措施

针对金陵分公司油品储运部中间罐区储存含有H2S粗汽油、粗柴油中间料挥发外泄带来的环境问题,采用抚顺石化研究院开发的“液态吸收”法对中间储罐排出的含硫、含烃尾气进行有效吸收:经冷冻的粗柴油作为贫吸收油,吸收尾气中的烃类组分,再经30％碱液重力反应器吸收含硫物质,尾气经上述处理过程后实现达标排放.通过对运行中存在的系统压力、吸收剂温度、碱液浓度等问题进行分析,提出了相关改进措施.改进后的装置运行稳定,连续尾气吸收效果较好.

Operation and improvement measures of tail gas recovery device for intermediate tank

In view of the environmental pollution problems caused by volatilization of H2S-bearing crude gasoline and crude gas oil stored in the intermediate tankfarm of Oil Storage and Transportation Department of Jinling Branch Company,the "liquid absorption" method developed by Fushun Petrochemical Research Institute is used to effectively absorb sulfur and hydrocarbon-bearing tail gas discharged from immediate tank.The frozen crude gas oil is taken as poor absorption oil to absorb hydrocarbon components in the tail gas and then 30% lye gravity reactor is used to absorb sulfur-bearing substances,so that tail gas emissions reach the standard.Relevant improvement measures are proposed through analysis of system pressure,absorbent temperature,lye concentration and other problems in the operation.Improved device works stably and has the better absorption effects for continuous tail gas.