改性活性炭脱除硫化氢工艺参数研究

针对改性活性炭脱除硫化氢过程,研究了空速、温度、原料气浓度、颗粒分布孔径4个主要工艺参数对脱硫效率的影响。结果表明:空速在1 500～4 200h-1时穿透硫容随着空速的降低而增加,当空速继续降低为1 200h-1时穿透硫容基本不变;当0～40℃时,随着温度的升高,穿透时间增加,脱硫效率提高,当温度超过40℃时,随着温度继续升高脱硫效率降低;相同空速下原料气硫化氢浓度变化只改变穿透时间;改性活性炭脱硫剂发挥脱硫作用的微孔结构范围是1～5nm。

Study on Process Parameters of Hydrogen Sulfide Removal by Modified Activated Carbon

We study the four main process parameters such as air speed,temperature,feed gas concentration,and pore size distribution,on desulfurization efficiency in hydrogen sulfide removal by modified activated carbon.The results show that: the air speed at 1500-4200 h——1 breakthrough sulfur capacity increases as the airspeed decreases;when the air speed continues to decrease to 1200 h——1,breakthrough sulfur capacity basically remains unchanged;at the temperature from 0℃ to 40℃,breakthrough time and desulfurization efficiency increase as the temperature increases;when the temperature exceeds 40℃,desulfurization efficiency decreases as temperature continues to increase;at the same air speed,hydrogen sulfide concentration changes in raw gas only change breakthrough time;modified activated carbon plays desulfurization effect on the conditions that microporous structure ranges from 1nm to 5nm.