液化石油气中含有硫化氢,会引起设备腐蚀和环境污染,当液化石油气作为化工原料时,对硫含量的要求更严格,因此需要将硫化氢脱除。国内一般采用碱洗法和乙醇胺法。碱洗法的流程简单,但由于液化气中硫化氢含量较高,需消耗大量碱液,并产生大量碱渣。乙醇胺法流程比较复杂,设备投资及操作费用较高。针对液化石油气脱硫工艺的这种状况,我们开发了氨水脱硫与含硫污水汽提的联合流程, Liquefied petroleum gas contains hydrogen sulfide, will cause equipment corrosion and environmental pollution, when liquefied petroleum gas as a chemical raw material, the sulfur content of the more stringent requirements, so the need to remove hydrogen sulfide. Domestic commonly used alkaline washing method and ethanolamine method. The process of caustic washing is simple, but due to the high content of hydrogen sulphide in liquefied gas, it needs to consume a large amount of caustic and produce a large amount of caustic soda. Ethanolamine process more complicated, higher equipment investment and operating costs. In view of this situation of liquefied petroleum gas desulfurization process, we have developed a joint process of ammonia desulfurization and sulfur-containing sewage stripping,