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针对以石脑油、焦化汽油和炼厂干气等为原料的大型制氢、制氨装置的需要,研制出了生产成本低的氧化铁精脱硫剂NTT05,在300mL和10L试验装置上考察了其使用性能和工艺条件。结果表明,在反应压力0.1～4.0MPa,反应温度200～420℃,精制焦化汽油空速0.5～2.0h~(-1),直馏石脑油的空速1.0～4.0h~(-1),精制炼厂干气空速500～3000h~(-1)的条件下,精制油和气的总硫含量均小于0.2μg/g,耐高硫进料和抗压碎力明显优于氧化锌脱硫剂,其生产成本低,资源丰富,完全可以满足大型制氢、制氨装置的工艺要求。
In order to meet the need of large-scale hydrogen production and ammonia plant using naphtha, coker gasoline and refinery dry gas as raw materials, an iron oxide fine desulfurizer NTT05 with low production cost was developed and investigated in 300mL and 10L test units Its performance and process conditions. The results showed that when the reaction pressure was 0.1-4.0 MPa, the reaction temperature was 200-420 ℃, the space velocity of purified coker gas was 0.5-2.0 h -1, the space velocity of straight-run naphtha was 1.0-4.0 h -1, , Refined gas refinery dry gas space velocity of 500 ~ 3000h ~ (-1) conditions, the total sulfur content of refined oil and gas were less than 0.2μg / g, high sulfur feed resistance and crushing strength was significantly better than zinc oxide desulfurization Agent, its production cost is low, rich in resources, fully meet the large-scale hydrogen production, ammonia plant process requirements.