小型炼厂酸性气回收工艺分析与选择

摘要

Claus or LO-CAT process is the typical technique for acid gas treatment. But it is not suit for small-scale refineries because of high investment, complex process and poor benefit. In other side, direct combustion of acid gas will cause waste of resources and environment pollution. Therefore, it is meaningful to find an appropriate process for acid gas treatment in small-scale refineries. In this paper, the typical treatment processes of acid gas were introduced and their characteristics were analyzed. For small-scale refineries, acid gas can be recycled and transferred to NaHS, which has advantages of small investment and easy operation.%小型炼厂酸性气气量较小，采用Claus工艺或LO-CAT工艺制备硫磺均存在投资大、流程长、经济效益较差等问题，而酸性气直接燃烧排放不仅浪费资源，还对环境造成一定的影响。介绍了炼厂酸性气的典型处理工艺。通过对各种工艺分析与比较，选择适合小型炼厂酸性气的综合利用方法，即酸性气回收制NaHS技术。