扬子石化公司炼油厂硫回收装置 ,按原工艺设计 ,氨精制装置在生产过程其粗氨气中的硫化氢要用碱渣进行中和 ,还将产生新的不易处理的碱渣污染源 ,它是目前国内硫回收生产中难以攻克的环保问题。因此 ,硫回收装置的氨精制系统就一直无法投用。为实现硫回收装置无碱精制的目标 , According to the original process design, the sulfur recovery unit of the refinery of Yangzi Petrochemical Company shall be neutralized by the alkali residue in the crude ammonia produced by the ammonia refining unit in the production process, and will also generate new alkali residue pollution source which is not easy to handle. At present, it is hard to overcome the environmental problems in domestic sulfur recovery and production. Therefore, the ammonia recovery system of ammonia refining system has been unable to put into use. In order to achieve the goal of alkali-free sulfur recovery unit,