烟气中SO_2／NO_x同时吸收催化脱除的研究

Study on the Simultaneous Removal of SO_2/ NO_x from Flue Cases with Absorption and Catalysis

根据同时脱硫脱硝的要求，对以ＣｕＯ为主要活性组分催化剂的制备和反应过程进行研究。活性测试的结果表明，催化剂的最佳活化温度和活化时间分别为４５０℃和２ｈ。当反应温度为４００℃，空间速度为２×１０４ｈ（－１）以及ＣｕＳＯ４／ＣｕＯ摩尔比和Ｃｕ／Ｓ分别保持在１．４６和０．８３以上时，ＳＯ２和ＮＯｘ的脱除率可达９０％以上。

Based on the requirements for simultaneous desulfurization and denitrification, a study was carried out on the preparation and reaction processes of the catalysts consisting of CuO as a major active component. The results from activity measurements indicate that the catalyst has the optimum activation temperature of 450℃ and the activation time of 2h.Under the conditions of reaction temperature of400℃, space velocity of 2×10￣4h￣(-1), CuSO_4/CuO ratio by mole of over 1. 46 and Cu/S ratio by mole of over 0. 83, both SO_2 and NO_x can be removed at a rate of over 90 %.