利用富氧技术提高硫回收装置的处理能力和效率

摘要

By replacing some or all of the nitrogen present in combustion air with oxygen,flow rates though the SRU/TGTU can be substantially reduced.In the design of a new unit,this translates to smaller equipment and thus a reduced capital cost.When applied to a revamp,oxygen enrichment can provide a cost-effective incremental capacity increase.This technology not only provides economic benefits,but can also improve the operation of the SRU/TGTU.Enhanced contaminant destruction,sulphur recovery efficiency,reliability and robustness of operation have all been realized though implementation of this technology.The extent of oxygen enrichment can be custom-tailored depending on the plant configuration,processing capacity requirement,plot space availability, feed gas compositions,and desired operating scenario.%用氧气代替空气中的部分或全部氮气可大大降低克劳斯硫回收及尾气处理装置的气体流量。对于新建装置,富氧技术可减小设备尺寸从而减少投资;对于改造项目,富氧技术是一个高投资效益的扩能方案。除经济优点外,富氧技术还可改善硫回收及尾气处理装置的操作,提高污染物分解率、硫回收率、操作可靠性和稳健性。富氧浓度可根据装置布局、处理能力、可利用空间、原料气组成和工况要求而定制。