高效常温氧化铁脱硫剂的制备

STUDY ON EFFICIENT FERRIC-OXIDE DESULFURIZER UNDER ATMOSPHERIC TEMPERATURE

固体氧化铁脱硫剂长期以来因硫容量低 ,用于高含硫气体时 ,存在着在高空速下气体净化度不高的问题 ,限制了氧化铁脱硫剂的应用。为此 ,研究了氧化铁脱硫剂的新配方 ,并改变了其制备工艺 ,由此得到了改进后的高效氧化铁脱硫剂 ,进而对其性能进行了条件试验研究。结果表明 :水蒸气、CH4、CO等对改进后脱硫剂没有多大的影响 ;当流速为 1.0L/min、空速为 90 0 0h-1、进口H2 S量为 1.0 g/m3 、脱硫剂装量为 5 .0 g、出口H2 S量以小于等于 2 0mg/m3 为穿透标准时 ,改进后的氧化铁脱硫剂通气量可达 30 0L ,比用原工艺生产的脱硫剂的通气量(180L)增加了 1/3,取得了很好的脱硫效果。因此 ,改进后的脱硫剂能广泛应用于对油田伴生气、含硫天然气、城市煤气。

Application of solid ferric-oxide desulfurizers has been limited for a long time because the gas with high sulfur content can't be purified sufficiently under high space velocity. So, the new formula of ferric-oxide desulfurizer is developed and the preparing process is changed. The modified efficient ferric-oxide desulfurizer is obtained. Its performance is studied with condition experiments. The results show vapor, CH4 and CO have little effect on the performance of the modified desulfurizer. The treated gas volume can reach 300 L when the flow rate is 1.0 L/min. , the space velocity is 9000 h-1, the H2 S content at the inlet is 1.0 g/m3, the desulfurizer is 5.0 g, the H2 S content at the outlet as the standard is 20 mg/ m3 or less. The treated gas volume increases 1/3 more than that (180 L) of the original desulfurizer. Good results have been achieved. The desulfurizer can be widely used to treat the accompanying gas from oil fields, sour gas, city gas and sewage for desulfurization.