【摘要】 对某炼油厂采用热风循环技术改造后的制备裂化催化剂的生产流程进行分析，发现仍有节能余地。因此采用余热回收技术对此生产流程进行二次节能改造，即尾气通过热管换热器预热冷空气。计算结果表明此措施可进一步降低能耗，具有良好的综合经济效益。更多还原

【Abstract】 t is found that there is still much potential for ener-gy-saving after the analysis the present process of cracking of cracking cata-lyst manufacture which has been retrofitted by means of mois-ture air recycling to reduce cool air quantity in an oil rfinery The energy can be further saved by designing a heat-pipe heatexchanger to preheat the cool air into the process by use ofthe exhausted moisture at high temperature In this paper, themeasures of preheating the cool air into the equipment weretaken and had been studied ,更多还原