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Invention Publication
CN101721911A 一种可用于脱除烟气中硫、氮氧化物的组合物 无效 - 驳回 复审申请

一种可用于脱除烟气中硫、氮氧化物的组合物
Abstract:
一种可用于脱除烟气中硫、氮的氧化物的组合物，该组合物含有至少一种选自第I B、II B、III B、IV B、V B、VI B、VII B、VIII B族的过渡金属的氧化物，至少一种选自第I A、II A族的金属氧化物，至少一种耐热无机氧化物基质，所述催化剂由包括以下步骤的方法制备：(1)向耐热无机氧化物基质和/或耐热无机氧化物基质的前身物中引入至少一种选自第I B、II B、III B、IV B、V B、VI B、VII B、VIII B族的过渡金属的氧化物，至少一种选自第I A、II A族的金属氧化物；(2)在大于600℃至1100℃条件下焙烧步骤(1)的产物2小时-12小时，得到所述组合物。与现有技术相比，本发明提供的组合物在保持高的脱除烟气中硫、氮氧化物性能的前提下再生稳定性进一步提高。
Abstract(English):

The invention discloses a composition for desorbing sulfur and nitrogen oxide in fume, comprising at least one oxide of transition metals selected form IB, IIB, IIIB, IVB, VB, VIB, VIIB and VIII B groups, at least one metal oxide selected from IA and IIA groups and at least one heat-resistant inorganic oxide substrate; a catalyst is prepared by the following steps of: (1) introducing the at least one oxide of transition metals selected from IB, IIB, IIIB, IVB, VB, VIB, VIIB and VIIIB groups and at least one metal oxide selected from IA and IIA groups to the heat-resistant inorganic oxide substrate and/or a precursor of the heat-resistant inorganic oxide substrate; and (2) roasting a product of the step (1) at a temperature more than 600DEG C-1,100DEG C for 2-12 hours to obtain the composition. Compared with the prior art, the composition further improves the regeneration stability on the premise of keeping high performance of desorbing sulfur and nitrogen oxide in fume.

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