【摘要】 采用沉淀法在凹凸棒石上负载纳米氧化锌,制得凹凸棒石基纳米氧化锌脱硫剂,用于高浓度硫化氢脱除。通过正交实验,以脱除高浓度硫化氢的硫容为目标,进行制备工艺条件的优化。结果表明,以3%(质量分数)十二烷基苯磺酸钠溶液为改性剂,用1%(质量分数)硝酸溶液酸化凹凸棒石,在温度30℃、pH值10～12下沉淀反应6h,120℃干燥,250℃焙烧3h,制得的改性凹凸棒基脱硫剂脱除高浓度硫化氢的最大硫容达到20.40%。更多还原

【Abstract】 The nano-zinc oxide desulfurizer with attapulgite as support(Z/GATB) was obtained through the sedimentation of nano-zinc oxide on attapulgite,and used for H2S removal.The preparation conditions were optimized by means of orthogonal method with sulfur content capacity for H2S removal as goal.The results showed that the optimal preparation conditions of Z/GATB were the 3% sodium dodecyl benzene sulfonate as modification agent,treatment with 1% nitric acid,the precipitation temperature of 30℃,precipitation pH value of 10-12,precipitation time of 6 h,drying temperature of 120℃,calcination temperature of 250℃ and calcinations time of 3 h,under which the Z/GATB desulfurizer could be obtained possessing the maximum sulfur content capacity of 20.40% for the removal of high concentration H2S.更多还原