摘要:
采用电化学沉积法,以半焦为载体,硝酸锌(Zn (NO3)2)和六次甲基四胺(HMT)的混合溶液为电解液,制备了负载氧化锌的活性半焦。借助SEM、TEM、FT-IR等检测手段对制备样品进行表征,考察不同电解温度对Zn O/半焦复合脱硫剂的影响,并评价不同电解温度条件下的Zn O/半焦复合脱硫剂的SO2吸附性能。结果表明:随着电解温度升高,催化剂的吸附性能改善;电解温度为80℃,电解时间为60 min,电解电压为3 V,Zn2+浓度为0.001 5 mol/L,HMT浓度为0.001 5mol/L时负载的Zn O形貌最佳,在此条件下制备的催化剂穿透时间约360 min,硫容为6.1 g,脱硫效果最优。
Abstract:
The active semi char loaded with Zinc Oxide was prepared by electrochemical deposition with a semi coke as the carrier,zinc nitrate（Zn（NO3）2） and six times methyl four amine（ HMT） as the electrolyte.The samples were characterized by SEM,TEM and FT-IR,and the effects of different electrolysis temperatures on Zn O/char compound desulfurizer were investigated,and the SO2 adsorption properties of Zn O/char Desulfurizer at different electrolysis temperatures were evaluated.The results show that,under reaction conditions of 60 min electrolytic time,80 ℃ electrolysis temperature,3 V electrolytic voltage,0.001 5 mol/L Zn2+ and 0.001 5 mol/L HMT,the prepared catalyst has the 360 min penetration time and 6.1 g sulfur capacity,which can achieve the best load effect and desulfurization effect.
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