CuO/ATP常温脱硫剂的制备及其性能评价

Preparation and performance of desulfurizer CuO/ATP at ambient temperature

用直接沉淀法制备了负载型CuO/ATP常温脱硫剂,用TEM、XRD对CuO/ATP进行了表征,并从扩散及热力学角度分析了焙烧温度、负载量、流速、硫化温度对H2S吸附性能的影响。结果表明,CuO分散在ATP表面,而其分散状态取决于焙烧温度和负载量。焙烧温度过高或负载量过高都将导致CuO的分散性变差,降低气体在脱硫剂中的扩散速率,使得脱硫剂的活性降低。降低流速可使脱硫剂的利用率达到97%,而降低硫化温度至0℃时,脱硫剂性能仍然表现良好,硫容达到了33.17%。

Desulfurizers CuO supported ATP were prepared using direct precipitation method and applied for sorbing H2S at ambient temperature.XRD and TEM were employed to characterize the desulfurizes.The effects of calcination temperature,CuO loading,gas flow rate and reaction temperature on the desulfurization performance were investigated.The diffusion and thermodynamics data demonstrate that dispersion state of CuO on the support depends highly on calcination temperature and CuO loading.Over-calcination or over-loadings may result in serious destructive and different dispersion state of CuO,which cause rapid decline of desulfurizer activity.Low gas flow rates are benefit for sorption capacity and the usage ratios of the sorbents can reach to 97%.When reaction temperature is at 0℃,the desulfurizers still be of high capacity 33.17%.