1.活性焦一体化脱硫脱硝工艺
1. activated coke integrated desulfurization and Denitration Process
1.该工艺脱硫效率高，同时具有除尘效果，由于不加入其他辅助原料，因此无其他废水、废渣的产生，不造成二次污染。
1. the process has high desulfurization efficiency and dust removal effect. Since no other auxiliary raw materials are added, no other wastewater and waste residue are generated and no secondary pollution is caused.
2.由于活性焦良好的吸附性能，可协同处置氟化物、二噁英等其他污染物。利用活性焦的过滤集尘功能和吸附性能，使烟气中附着于烟尘上的二噁英、氟化物以及其他污染物质在吸附塔内被活性焦的过滤集尘功能捕集，而气态的二噁英等污染物被吸附。由于活性焦在解吸过程中需要被加热到 400 ℃以上，二噁英在苯环间的氧基在活性焦催化作用下被裂解，使得烟气中的二噁英被去除。
2. due to the good adsorption performance of activated coke, it can coordinate the disposal of fluoride, dioxin and other pollutants. By using the filtration and dust collection function and adsorption performance of activated coke, dioxins, fluorides and other pollutants attached to the smoke in the flue gas are collected by the filtration and dust collection function of activated coke in the adsorption tower, while gaseous dioxins and other pollutants are adsorbed. As the activated coke needs to be heated to above 400 ℃ in the desorption process, the oxygen group between the benzene rings of dioxins is cracked under the catalysis of activated coke, so that the dioxins in the flue gas are removed.
3.烧结生产过程中由于工况不同、原料的不同会导致烟气量、温度以及 SO2体积分数波动较大，而活性焦脱硫脱硝工艺对烟气的变化具有较强的适应性。
3. in the sintering production process, the flue gas volume, temperature and SO2 volume fraction will fluctuate greatly due to different working conditions and raw materials, while the activated coke desulfurization and denitration process has strong adaptability to the change of flue gas.
4.资源回收。活性焦通过再生系统，可将吸附的SO2析出，送制酸系统制成浓硫酸，实现资源的回收利用。
4. resource recovery. The activated coke can separate the adsorbed SO2 through the regeneration system and send it to the acid making system to make concentrated sulfuric acid, so as to realize the recycling of resources.
5.该工艺对烧结生产系统影响较小，且脱硝反应温度在 130 ℃左右，因此不需要对烧结烟气进行加热。烧结烟气中含有大量 SO2等酸性气体，对设备的腐蚀要求较高，活性焦吸附系统抗腐蚀能力较强，因此系统运行稳定。
5. the process has little impact on the sintering production system, and the denitration reaction temperature is about 130 ℃, so it is not necessary to heat the sintering flue gas. The sintering flue gas contains a large amount of SO2 and other acid gases, which has high requirements for equipment corrosion. The active coke adsorption system has strong corrosion resistance, so the system operates stably.
6.活性焦脱硫脱硝系统一次性投资较高，且由于需要不断补充活性焦，运行成本较高。
6. the activated coke desulfurization and denitration system has a high one-time investment, and the operation cost is high due to the need to continuously supplement the activated coke.
2.循环流化床半干法脱硫 +SCR 脱硝组合工艺 循环流化床半干法脱硫+SCR 脱硝组合工艺具有以下特点：
2. circulating fluidized bed semi dry desulfurization +scr denitration combined process circulating fluidized bed semi dry desulfurization +scr denitration combined process has the following characteristics:
1.烟气循环流化床法脱硫效率高，对含 SO2体积分数较高的烟气也有很好的脱硫效果。
1. the flue gas circulating fluidized bed method has high desulfurization efficiency and good desulfurization effect for flue gas with high SO2 volume fraction.
2.采用石灰为脱硫剂，分布广泛，且脱硫剂消耗量小。
2. lime is used as desulfurizer, which is widely distributed and consumes little desulfurizer.
3.一次性投资成本较低，且运行费用较低。
3. the one-time investment cost is low and the operation cost is low.
4.SCR 法在运行一段时间后，催化剂需要更换，更换的废催化剂为危险固废，应加强管理。
4. After the SCR method has been operated for a period of time, the catalyst needs to be replaced. The replaced waste catalyst is hazardous solid waste, and management should be strengthened.
3.湿法脱硫 +SCR 脱硝组合工艺 湿法脱硫+SCR 脱硝组合工艺具有以下特点： 1.湿法脱硫应用广泛，工艺成熟。
3. wet desulfurization +scr denitration combined process wet desulfurization +scr denitration combined process has the following characteristics: 1 Wet desulfurization is widely used and the process is mature.
2.一次性投资成本较低，且运行费用较低。
2. the one-time investment cost is low and the operation cost is low.
3.若采用石灰石-石膏法，后续石膏产生量较大，会带来后续石膏综合利用问题。
3. if the limestone gypsum method is adopted, the subsequent gypsum production will be large, which will lead to the comprehensive utilization of the subsequent gypsum.
4.湿法脱硫后的烟气会再烟囱口形成雾状水汽，称为白色烟羽，携带有 SO2、SO3、CaSO4、Cl-等污染物，目前已经有许多地区要求湿法脱硫后的烟气采取“消白”措施，需要增加建设成本和运行成本，并增加能耗。
4. the flue gas after wet desulfurization will form fog like water vapor at the chimney mouth, which is called white plume, carrying SO2, SO3, CaSO4, cl- and other pollutants. At present, many regions have required "white elimination" measures for the flue gas after wet desulfurization, which needs to increase the construction cost, operation cost and energy consumption.
5.湿法脱硫运行过程中对设备的腐蚀较大，建设过程中应做好脱硫塔的防腐，运行过程中应加强检修，保证系统稳定运行。
5. the equipment is severely corroded during the operation of wet desulfurization, so the desulfurization tower shall be well protected against corrosion during the construction process, and the maintenance shall be strengthened during the operation process to ensure the stable operation of the system.
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2022-06-28
鲁公网安备37011202000764号号