喷气燃料加抗静电剂后水分离指数下降原因分析及对策

摘要

对喷气燃料加抗静电剂后水分离指数严重下降的原因进行分析,确定影响因素为原料油中携带的碱性氮化物,提出提高低温加氢脱硫醇装置的反应温度至280℃或保持反应温度在240℃时采取白土吸附两项对策.采用两项对策后,均可以使喷气燃料加剂后水分离指数符合不低于70的质量要求.%The cause of declining water separation characteristics after adding antistatic agent into jet fuel was analyzed and it was found that the existence of some entrained basic nitrogen compounds in feed was the main reason. To solve the problem, two measures were proposed and put into practice: increase the reaction temperature of removing mercaptan by hydrogenation process to 280 ℃ ; remain the reaction temperature at 240 ℃ and add a clay adsorption step. Results show that both measures are effective, by adopting either one the water separation characteristics of jet fuel with antistatic agent can meet the requirement of product quality standard (not less than 70).