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CN1607027A 一种用锅炉粉煤灰制备选择性催化还原脱硝催化剂的方法 有权 转让

一种用锅炉粉煤灰制备选择性催化还原脱硝催化剂的方法
摘要：
一种用锅炉粉煤灰制备选择性催化还原脱硝催化剂的方法，涉及烟气净化的环保技术领域。它包括如下步骤：①将粉煤灰颗粒和添加剂混合搅拌后，送入预处理釜内进行成型活化预处理，再对飞灰固体型块进行破碎和筛分得到成型飞灰颗粒；②用高浓度强酸浸泡成型飞灰颗粒后，用蒸馏水冲洗过滤出来的成型飞灰颗粒至中性，再经过一次干燥生成飞灰改性SCR脱硝催化剂的载体；③将飞灰改性SCR脱硝催化剂的载体浸入金属氧化物盐溶液中，再经过二次干燥和煅烧制成选择性催化还原脱硝催化剂。本发明利用废弃的锅炉粉煤灰为载体，加载金属氧化物作为活性成分，制备成选择性催化还原脱硝催化剂，使工艺成本降低、可靠性提高并且抗SO2性能良好。
摘要（英）：

A process for preparing selective catalytic reduction denitration catalyst containes following steps, 1, fly ash and additive are mixed and stirred, active shaping pretreated in reactor, shaped fly ash grain is obtained by pulverizing and sieving fly ash block. 2, soaking shaped fly ash grain by high-concentration strong acid, flushing it to neutrality by distilled water, to form modified SCR denitration catalyst carrier through drying once more. 3, soaking modified SCR denitration catalyst carrier into metal oxide salt solution to obtain the selective catalytic reduction denitration catalyst through two time drying and calcinating.

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