多元复合型脱硫剂的研制和试验

Development and Test of Multi-compound Desulfurizer

针对海上油田硫化氢处理要求,利用一套自主设计的适合用于模拟分析脱硫剂现场实际脱硫效果的动态评价装置对脱硫剂效果进行动态评价,研发新的脱硫剂和分析现场工况参数对脱硫效果的影响。研究结果表明:甲胺、单乙醇胺和二乙胺等物质的量比下合成的多元复合型脱硫剂11#的水溶性好,脱硫效果优异,脱硫率一直保持在96%以上,同时硫容量也最大。脱硫剂11#的脱硫率,随着气液比增加而逐渐减小,随超重力机转速的增加先增加后趋于稳定并有所下降,随着体系总压增加而增加,处理温度对脱硫效果影响较小。现场试验表明,脱硫剂11#的脱硫效果明显优于原在用脱硫剂0#,进一步降低了现场腐蚀和安全风险。

To meet the requirements of hydrogen sulfide removal in offshore oil field,using a new dynamic evaluation system,which was suitable for simulation analysis of the actual desulfurization efficiency of the desulfurizer,new desulfurizers were developed and the effect of working parameters on site on the desulfurization efficiency was analyzed.The experimental results showed that,the desulfurization efficiency of the synthesized multi-compound H_(2)S scanvenger 11#obtained when the molar ratio of methylamine,monoethanolamine and diethylamine was 1∶1∶1,maintained above 96%during the experiment,exhibiting excellent desulfurization efficiency and the largest sulfur capacity.The desulfurization efficiency of H_(2)S scanvenger 11#decreased with the increase of gas-liquid ratio.The desulfurization efficiency firstly increased and then decreased with the increase of the speed of the high gravity device,while increased with the increase of the total pressure of the system.The system temperature had little effect on the desulfurization efficiency.Field tests showed that desulfurization efficiency of H_(2)S scanvenger 11#was obviously better than that of the original H_(2)S scanvenger 0#,which further reduced the corrosion and safety risk on site.