摘要
GB 31570-2015《石油炼制工业污染物排放标准》明确规定中国一般地区炼厂硫黄回收装置排放尾气中SO_2浓度的限值为400 mg/m^3,特别地区的排放限值为100 mg/m^3。为达到此标准的要求,中国建于炼厂的硫黄回收尾气装置绝大多数都须要进行技术改造和/或升级。首先在梳理近年来硫黄回收尾气处理工艺技术的基础上,总结出了4个类型的尾气达标技术方案。然后强调指出,组合式尾气处理新工艺对西南油气田公司天然气净化厂现有延伸型尾气处理装置的技术改造极具参考价值。最后提出对此类新工艺开展工程前端研究(FEED)的建议。
It is explicitly specified in GB 31570-2015 Discharge Standard for Petroleum Refining Industry that the limit concentration of SO_2 in tails gas from sulfur recovery unit of refinery in general area of China be 400 mg/m^3 and that in special areas be 100 mg/m^3.To meet this standard,technical renovation and reconstruction is required for most of the sulfur recovery tail gas unit in refinery plant.First,4 types of technical proposals are summarized for tail gas to meet discharge standard based on techniques for sulfur recovery tail gas treatment process in recent years and it is stressed that combined new process has much referential value for the technical reconstruction of existing expanded tail gas treatment unit in gas purification plant of southwest oil & gasfield company.Finally,suggestions for the implementation of front end engineering design(FEED) of such kind of new process have been put forward.
出处
《天然气与石油》
2016年第3期35-39,53,共6页
Natural Gas and Oil
