以旋流板塔为脱硫塔，对几种价廉吸收剂的湿法烟气脱硫工艺进行了实验研究，并分析了传质反应机理。试验了不同液气比（LPG）、吸收液pH值和进气SO2浓度等主要参数对脱硫率的影响，并对实验结果进行了分析；结合其传质反应机理，得出了回归方程式。这些吸收剂均来自于工业废料，达到了以废治废的效果。价廉脱硫剂的旋流板塔湿法脱硫工艺已用于苏州热电厂35tPh锅炉的烟气脱硫。

向石灰石脱硫浆液中添加硫酸钠可提高脱硫率。以旋流板塔为吸收器,测定了钠强化石灰石湿式烟气脱硫过程的脱硫率、pH值等随脱硫反应时间的变化情况，对不同pH值范围内的石灰石溶解速率等进行了分析。在与工业操作温度相近的条件下,测定了不同塔板数时的脱硫率和塔压降,计算了平均单板效率。结果表明，增加塔板数，脱硫率提高,而平均单板效率减小，实验条件下，塔板数由1增加到4，液气比为4L/m3时脱硫率由25.5%提高到48.6%,而平均单板效率则由25.5%下降到15.3 % 。得出了平均单板效率与塔板数之间的关系式。

实验研究了废大理石粉作为脱硫剂的湿法烟气脱硫工艺，分析了其吸收SO2的传质反应机理。试验了不同液气比（L/G）、吸收浆液pH值和进气SO2浓度等主要参数对脱硫率的影响，并对实验结果进行了分析。结果表明，选择以下操作条件较为适宜：pH0=515～615，L/G=3L/m3，a=2%；以上工艺条件下，在进气SO2浓度为1000ml/m3时，脱硫率达60%以上。本文还讨论了废大理石粉作为脱硫剂的工业应用前景。

Forced oxidation of calcium sulfite aqueous slurry is a key step for the calcium-ba sed flue gas de sulfurization (FGD) re sidue. Experiments were conducted in a semi-batch system and a continuous flow system on lab scales. The main reactor in semi-batch system is a 1000ml volume flask. It has five necks for continuous feeding of gas and a batch of calcium sulfite solutionPaqueous slurry. In continuous flow system, the main part is a jacketed Pyrex gla ss reactor in which gas and solutionPaqueous slurry are fed continuously. Calcium sulfite oxidation is a series of complex free2radical reactions. According to experimental re sults and literature data, the reactions are influenced significantly by mangane se as catalyst. Atlow concentration of mangane se and calcium sulfite, the reaction rate is dependent on 115 order of sulfite concentration, 015 order of mangane se concentration, and zero order of oxygen concentration in which the oxidation is controlled by chemical kinetics. With concentrations of calcium sulfite and mangane se increa sing, the reactions are independent gradually on the constituents in solution but are impacted by oxygen concentration. Mangane se can accelerate the free-radical reactions, and then enhances the mass transfer of oxygen from ga s to liquid. The critical concentration of calcium sulfite is 01007molPL, mangane se is 10-4 molPL, and oxygen is of 012-014atm.