低温吸收技术在回收装车挥发油气中的应用

针对石化企业敞口槽车充装油气产品造成产品损耗及安全隐患的情况,中国石化中原油田天然气处理厂利用密闭装车技术和低温吸收技术,以现有的无毒稀释剂作为吸收剂,将气相挥发产品回收并返至原料重新处理,成功地对原工艺进行了改造。改造后油气回收率达到95%以上,产品外销损耗率由1.98%降到0.09%,既避免了产品挥发造成的经济损失,又提高了充装作业的安全系数。

Recovering application of vaporizing oil-gas with low temperature when loading

Owing to the loss of product and unsafe circumstance when oil-gas products were loaded into uncorked tank cars in petrochemical enterprises,an improved technique was obtained by the following measures in Zhongyuan Oil-field Natural Gas Process Factory:using the technique of close loading and oil-gas absorption with current nontoxic diluent as absorber at low temperature,the oil-gas vaporized was recovered and returned to the raw material processing.The recovery rate of oil-gas is above 95%,the loss rate of the product in distribution is declined from 1.98% to 0.09%.And the economic loss brought by vaporizing product is avoided,and the safety factor of the loading operation is raised at the same time.