CN105688849A - 一种多功能脱硫脱硝环保制剂及其制备方法 - Google Patents

一种多功能脱硫脱硝环保制剂及其制备方法 Download PDF

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CN105688849A
CN105688849A CN201610151985.7A CN201610151985A CN105688849A CN 105688849 A CN105688849 A CN 105688849A CN 201610151985 A CN201610151985 A CN 201610151985A CN 105688849 A CN105688849 A CN 105688849A
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许沛华
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Xiaoyi Xindongheng Clean Energy Co ltd
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Abstract

本发明属于环保技术领域，公开了一种多功能脱硫脱硝环保制剂，其由如下原料制备而得：水、草炭土、花生壳、高粱秸秆、麦麸、膨润土、酚醛树脂、沸石粉、白云石、腐殖酸钾、三氯化铁、醋酸锰。本发明制剂具备脱硫脱硝除汞多种功能，应用前景广阔。

Description

一种多功能脱硫脱硝环保制剂及其制备方法
技术领域
本发明属于环保技术领域，具体涉及一种多功能脱硫脱硝环保制剂及其制备方法。
背景技术
火电厂发电使燃烧的煤中会产生大量含有硫和硝废气，这些废气排入大气会产生污染形成酸雨。火电厂脱硫脱硝设备则是用来处理这些含有大量硫和硝废气的装置。脱硫工艺主要包括：DLWS脱硫、SDA脱硫以及LIFAC脱硫；上述脱硫方法运行成本较高。脱硝工艺主要包括：烟气脱硝和SCR脱硝；上述脱硝工艺装置结构简单、无副产品、运行方便、可靠性高、脱硝效率高、一次投资相对较低等诸多优点,在日本和欧美得到了广泛的商业应用。
目前，有较多的公司开始着手研究可同时脱硫脱硝的制剂，也有一些产品上市销售；大多数的脱硫脱硝制剂存在成本相对较高，吸附量较小，稳定性不高，在大规模应用时存在一定的缺陷。近年来最为普遍的是喷射粉末活性炭法，活性炭作为一种吸附剂，具有较好的脱硫脱硝效率，但其利用率低，成本也会继续提高，仍然难以实现大规模工业化。近年来，在环境问题及能源危机日益严重的情况下，国内外逐步将研究目标转移到开发相对廉价、切实有效的新型材料来制备脱硫脱硝制剂，如各类生物材料和矿物质材料。
发明内容
为了克服现有技术的不足，本发明提供了一种多功能脱硫脱硝环保制剂，该制剂成本低廉、脱硫脱硝效果好、吸附容量大、环保无污染，并且利用了多种农业废弃物，实现了变废为宝，一举两得。
本发明还提供了上述制剂的制备方法。
本发明是通过如下方案来实现的：
一种多功能脱硫脱硝环保制剂，其由如下原料制备而得：
水、草炭土、花生壳、高粱秸秆、麦麸、膨润土、酚醛树脂、沸石粉、白云石、腐殖酸钾、三氯化铁、醋酸锰。
具体地，由如下重量份的原料制备而得：
水40-70份、草炭土30-50份、花生壳20-30份、高粱秸秆20-30份、麦麸15-25份、膨润土10-15份、酚醛树脂8-12份、沸石粉8-12份、白云石6-9份、腐殖酸钾4-7份、三氯化铁2-3份、醋酸锰1-2份。
本发明制剂的制备方法包括如下步骤：
1）将高粱秸秆切成块状，然后与花生壳混合，添加到粉碎机中，粉碎，再与麦麸混合均匀，置于干燥箱中100℃干燥30min，取出自然冷却至室温，加入炭化炉，炉温500℃炭化活化1小时，自然冷却至室温，即为物料A；
2）将醋酸锰、三氯化铁以及草炭土添加到水中，在磁力搅拌器中加热搅拌至干，然后放入烘干箱中于80℃干燥30min，最后研磨至粒径为100目，即得物料B；
3）将白云石和酚醛树脂添加到球磨机中进行球磨，得到粒径为50目的粉末，即得物料C；
4）将沸石粉和膨润土混合，然后置于在煅烧炉中煅烧2h，煅烧温度为800℃，取出，冷却至室温，最后与腐殖酸钾混合，研磨至粒径为100目，得到物料D；
5）将物料A、物料B、物料C以及物料D依次添加到搅拌机中，500转/min搅拌3min，取出混合料，即得。
本发明取得的有益效果主要包括：
本发明脱硫脱硝制剂原料配伍合理，采用多种农业废弃物，原料成本低廉，充分利用其天然的吸附性能，实现资源化利用，变废为宝；本发明对农业废弃物进行了炭化改性，提高其吸附容量和吸附效果；采用煅烧沸石粉和膨润土的工艺，大大提高了吸附能力；本发明对草炭土进行了改性，表面变得较为粗糙，增大了比表面积，再经与三氯化铁和醋酸锰掺杂后，团聚在其表面，提高了脱硝能力，并且还具备较好的脱汞功能，使制剂的活性保持稳定继续发挥吸附作用；本发明制剂除尘脱硫脱硝效果好，制备流程简单，使用寿命长，性质更加稳定，并且储存、运输方便。
具体实施方式
为了使本技术领域的人员更好地理解本申请中的技术方案，下面将结合本申请具体实施例，对本发明进行更加清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
实施例1
一种多功能脱硫脱硝环保制剂，其由如下重量份的原料制备而得：
水40份、草炭土30份、花生壳20份、高粱秸秆20份、麦麸15份、膨润土10份、酚醛树脂8份、沸石粉8份、白云石6份、腐殖酸钾4份、三氯化铁2份、醋酸锰1份。
上述制剂的制备方法包括如下步骤：
1）将高粱秸秆切成块状，然后与花生壳混合，添加到粉碎机中，粉碎，再与麦麸混合均匀，置于干燥箱中100℃干燥30min，取出自然冷却至室温，加入炭化炉，炉温500℃炭化活化1小时，自然冷却至室温，即为物料A；
2）将醋酸锰、三氯化铁以及草炭土添加到水中，在磁力搅拌器中加热搅拌至干，然后放入烘干箱中于80℃干燥30min，最后研磨至粒径为100目，即得物料B；
3）将白云石和酚醛树脂添加到球磨机中进行球磨，得到粒径为50目的粉末，即得物料C；
4）将沸石粉和膨润土混合，然后置于在煅烧炉中煅烧2h，煅烧温度为800℃，取出，冷却至室温，最后与腐殖酸钾混合，研磨至粒径为100目，得到物料D；
5）将物料A、物料B、物料C以及物料D依次添加到搅拌机中，500转/min搅拌3min，取出混合料，即得。
实施例2
一种多功能脱硫脱硝环保制剂，其由如下重量份的原料制备而得：
水70份、草炭土50份、花生壳30份、高粱秸秆30份、麦麸25份、膨润土15份、酚醛树脂12份、沸石粉12份、白云石9份、腐殖酸钾7份、三氯化铁3份、醋酸锰2份。
上述制剂的制备方法包括如下步骤：
1）将高粱秸秆切成块状，然后与花生壳混合，添加到粉碎机中，粉碎，再与麦麸混合均匀，置于干燥箱中100℃干燥30min，取出自然冷却至室温，加入炭化炉，炉温500℃炭化活化1小时，自然冷却至室温，即为物料A；
2）将醋酸锰、三氯化铁以及草炭土添加到水中，在磁力搅拌器中加热搅拌至干，然后放入烘干箱中于80℃干燥30min，最后研磨至粒径为100目，即得物料B；
3）将白云石和酚醛树脂添加到球磨机中进行球磨，得到粒径为50目的粉末，即得物料C；
4）将沸石粉和膨润土混合，然后置于在煅烧炉中煅烧2h，煅烧温度为800℃，取出，冷却至室温，最后与腐殖酸钾混合，研磨至粒径为100目，得到物料D；
5）将物料A、物料B、物料C以及物料D依次添加到搅拌机中，500转/min搅拌3min，取出混合料，即得。
实施例3
本发明制剂的脱硫脱硝的效果试验：
分别取实施例1-2的吸附剂5g，放置于反应器中进行实验，模拟检测了锅炉烟气中的有害物质，条件如下：NOx、SO2以及汞组成的合成空气吹入反应体系，控制NOx浓度为18mg/m3，SO2浓度为15mg/m3，汞100ug/m3，反应空速为（GHSV）为80,000h-1。检测吸附剂对有害物质的吸附量（有害物质/吸附剂=mg/g），结果如表1所示。
表1
组别 NOx SO2 汞
实施例1 41.8mg/g 46.4mg/g 0.37mg/g
实施例2 39.7mg/g 47.3mg/g 0.41mg/g
结论：通过上表1可以确定，本发明制剂对烟气中的NOx、SO2以及汞等主要有害物质的吸附效果较好。
以上列举的仅是本发明的最佳具体实施例。显然，本发明不限于以上实施例，还可以有许多变形。本领域的普通技术人员能从本发明公开的内容直接导出或联想到的所有变形，均应认为是本发明的保护范围。

Claims (4)

1.一种多功能脱硫脱硝环保制剂，其由如下原料制备而得：
水、草炭土、花生壳、高粱秸秆、麦麸、膨润土、酚醛树脂、沸石粉、白云石、腐殖酸钾、三氯化铁、醋酸锰。
2.根据权利要求1所述的制剂，其特征在于，所述制剂由如下重量份的原料制备而得：水40-70份、草炭土30-50份、花生壳20-30份、高粱秸秆20-30份、麦麸15-25份、膨润土10-15份、酚醛树脂8-12份、沸石粉8-12份、白云石6-9份、腐殖酸钾4-7份、三氯化铁2-3份、醋酸锰1-2份。
3.根据权利要求1-2所述的制剂，其特征在于，所述制剂的制备方法包括如下步骤：
1）将高粱秸秆切成块状，然后与花生壳混合，添加到粉碎机中，粉碎，再与麦麸混合均匀，置于干燥箱中100℃干燥30min，取出自然冷却至室温，加入炭化炉，炉温500℃炭化活化1小时，自然冷却至室温，即为物料A；
2）将醋酸锰、三氯化铁以及草炭土添加到水中，在磁力搅拌器中加热搅拌至干，然后放入烘干箱中于80℃干燥30min，最后研磨至粒径为100目，即得物料B；
3）将白云石和酚醛树脂添加到球磨机中进行球磨，得到粒径为50目的粉末，即得物料C；
4）将沸石粉和膨润土混合，然后置于在煅烧炉中煅烧2h，煅烧温度为800℃，取出，冷却至室温，最后与腐殖酸钾混合，研磨至粒径为100目，得到物料D；
5）将物料A、物料B、物料C以及物料D依次添加到搅拌机中，500转/min搅拌3min，取出混合料，即得。
4.权利要求1-3所述的制剂在脱硫脱硝除汞中的用途。
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