Temperature Mgo-based Desulfurization Agent

China is a developing country, caused by rapid economic development of the substantial increase in energy demand. Meanwhile, China's first coal-based energy consumption structure of energy consumption caused by large emissions of SO?. In 1995, China surpassed the European Union, the United States as the world's largest emitter of SO2. Therefore, the development of various SO2 sorbent to become a research hotspot in recent years.In this thesis, the MgO-based SO2 sorbent were studied. Absorbent has made by the citric acid combustion method.the coprecipitation method and the impregnation method.in the middle temperature of 400℃,The sorbent'performance has evaluated by the fixed-bed.For different preparation methods, the different main adsorbent,doping element, doping ratio and regeneration properties were investigated.Using MgO as the main adsorbent after comparing.In general, doping of different elements have different effects on the single-time adsorption.Most of the sulfur capacity can be increased, reduce the sulfur content of individual.Where Ce, La element of a larger increase in sulfur capacity. Doping ratio on the impact of sulfur capacity is not a single increase or decrease with doping ratio, there is an optimum doping ratio.The regeneration of the adsorbent properties and cycle stability were studied. The regeneration of MgO-Ce, MgO-La is poor. After doping the After reducing additives Fe The regeneration of the adsorption have enhanced Fe element content the more the better regeneration performance,but too much Fe will reduce the original sulfur capacity of the absorbent. Therefore, the doping of Fe element not only consider the regeneration performance of absorbent but also take into account the original sulfur capacity.