CN107824227A - 一种汽车尾气净化催化剂载体 - Google Patents

一种汽车尾气净化催化剂载体 Download PDF

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CN107824227A
CN107824227A CN201711026045.6A CN201711026045A CN107824227A CN 107824227 A CN107824227 A CN 107824227A CN 201711026045 A CN201711026045 A CN 201711026045A CN 107824227 A CN107824227 A CN 107824227A
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秦川
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Abstract

一种汽车尾气净化催化剂载体，载体包括套体、安装于套体内部的格栅和固定设置在格栅中多孔复合球，多孔复合球与格栅壁之间留有尾气通道，栅壁之间形成的格栅孔之间具有多个多孔复合球并排纵向排列于格栅壁之间，与格栅壁形成尾气通道，所述多孔复合球包括芯球，所述芯球为钛合金，芯球外涂覆镍基合金层，镍基合金层外为多孔复合层，本发明多孔复合球包括芯球保证了载体的强度要求；芯球可以保证载体在工作过程中稳定性。

Description

一种汽车尾气净化催化剂载体
技术领域
本发明涉一种汽车尾气净化催化剂载体，属于汽车尾气净化技术领域。
背景技术
汽车催化转化器是一种发动机机外净化装置，它能净化汽车发动机排出的一氧化碳(CO)、碳氢化合物(HC)、碳氢化合物(HC)和氮氧化物(NO)。仅能净化CO和HC的催化转化器为氧化型催化转化器；能净化CO、HC和NO对环境污染的催化转化器为三效催化转化器。催化转化器的最外部为不锈钢壳体，其内部为催化剂载体；由于以中心为原点向四周扩散，中心部气体流量最快，催化剂利用率较高，四周由于动力在尾气排放时气体流量越小同时催化剂利用率就越少，不能达到催化剂的合理利用，成本高，同时造成了资源的浪费。
发明内容
一种汽车尾气净化催化剂载体，载体包括套体、安装于套体内部的格栅和固定设置在格栅中多孔复合球，多孔复合球与格栅壁之间留有尾气通道，
所述多孔复合球包括芯球，所述芯球为钛合金，芯球外涂覆镍基合金层，镍基合金层外为多孔复合层，
钛合金其各元素成分组成为：Mn 6-7﹪，V 3-4﹪， Zr 2-3﹪，Al 0.7-0.8﹪，In 0.5-0.6﹪，Ca 0.3-0.4﹪，N 0.1-0.2﹪，Mg 0.08-0.09﹪，Sb 0.06-0.07﹪，C 0.04-0.05﹪，Ce0.01-0.02﹪，Cr 0.01-0.02﹪，余量为Ti，
镍基合金其各元素成分组成为：Mn 0.7-0.8﹪，V 0.3-0.4﹪，Zr 0.2-0.3﹪，In 0.5-0.6﹪，Ag 0.1-0.2﹪，Bi 0.1-0.2﹪,Mg 0.08-0.09﹪，Ce 0.04-0.05﹪，Cr 0.03-0.04﹪，Ba 0.02-0.03﹪，Nd 0.01-0.02﹪，余量为Ni
多孔复合层由（质量）萤石粉100份，活性炭20-30份，三氧化二铝10-20份，氯化钠10份，二氧化硅5-10份，二氧化钛5份，三氧化二铬5份，烧失成孔剂60-70份，成型粘结剂80-90份，混合后得到混合料，将混合料包覆在镍基合金层外得到球坯，将坯球在75℃干燥4小时；将干燥后的坯球在隧道窑中于620℃烧成，得到多孔复合球，多孔复合层的比表面为470-480m2/g，孔容为0.75-0.8cm3/g。
所述的一种汽车尾气净化催化剂载体，钛合金其各元素成分组成为：Mn 6﹪，V3﹪， Zr 2﹪，Al 0.7﹪，In 0.5﹪，Ca 0.3﹪，N 0.1﹪，Mg 0.08﹪，Sb 0.06﹪，C 0.04﹪，Ce 0.01﹪，Cr 0.01﹪，余量为Ti。
所述的一种汽车尾气净化催化剂载体，钛合金其各元素成分组成为：Mn 7﹪，V4﹪， Zr 3﹪，Al 0.8﹪，In 0.6﹪，Ca 0.4﹪，N 0.2﹪，Mg 0.09﹪，Sb 0.07﹪，C 0.05﹪，Ce 0.02﹪，Cr 0.02﹪，余量为Ti。
所述的一种汽车尾气净化催化剂载体，钛合金其各元素成分组成为：Mn 6.5﹪，V3.5﹪， Zr 2.5﹪，Al 0.75﹪，In 0.55﹪，Ca 0.35﹪，N 0.15﹪，Mg 0.085﹪，Sb 0.065﹪，C 0.045﹪，Ce 0.015﹪，Cr 0.015﹪，余量为Ti。
所述的一种汽车尾气净化催化剂载体，镍基合金其各元素成分组成为：Mn 0.7﹪，V 0.3﹪，Zr 0.2﹪，In 0.5﹪，Ag 0.1﹪，Bi 0.1﹪,Mg 0.08﹪，Ce 0.04﹪，Cr 0.03﹪，Ba0.02﹪，Nd 0.01﹪，余量为Ni。
所述的一种汽车尾气净化催化剂载体，镍基合金其各元素成分组成为：Mn 0.8﹪，V 0.4﹪，Zr 0.3﹪，In 0.6﹪，Ag 0.2﹪，Bi 0.2﹪,Mg 0.09﹪，Ce 0.05﹪，Cr 0.04﹪，Ba0.03﹪，Nd 0.02﹪，余量为Ni。
所述的一种汽车尾气净化催化剂载体，镍基合金其各元素成分组成为：Mn0.75﹪，V 0.35﹪，Zr 0.25﹪，In 0.55﹪，Ag 0.15﹪，Bi 0.15﹪,Mg 0.085﹪，Ce0.045﹪，Cr 0.035﹪，Ba 0.025﹪，Nd 0.015﹪，余量为Ni。
所述的一种汽车尾气净化催化剂载体，多孔复合层由（质量）萤石粉100份，活性炭20份，三氧化二铝10份，氯化钠10份，二氧化硅5份，二氧化钛5份，三氧化二铬5份，烧失成孔剂60份，成型粘结剂80份，混合后得到混合料。
所述的一种汽车尾气净化催化剂载体，多孔复合层由（质量）萤石粉100份，活性炭30份，三氧化二铝20份，氯化钠10份，二氧化硅10份，二氧化钛5份，三氧化二铬5份，烧失成孔剂70份，成型粘结剂90份，混合后得到混合料。
所述的一种汽车尾气净化催化剂载体，多孔复合层由（质量）萤石粉100份，活性炭25份，三氧化二铝15份，氯化钠10份，二氧化硅7份，二氧化钛5份，三氧化二铬5份，烧失成孔剂65份，成型粘结剂85份，混合后得到混合料。
栅壁之间形成的格栅孔之间具有多个多孔复合球并排纵向排列于格栅壁之间，与格栅壁形成尾气通道。
上述发明内容相对于现有技术的有益效果在于：1）本发明多孔复合球包括芯球保证了载体的强度要求；2）芯球可以保证载体在工作过程中稳定性， 3）包覆镍基合金层可以提多孔复合球的芯球的耐腐蚀性保证材料的使用寿命；4）多孔复合层使载体更加有效承载催化剂提高尾气进化效果。
附图说明
图1为汽车尾气净化催化剂载体整体图；
图2为多孔复合球截面图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现详细说明本发明的具体实施方式。
如图1-2所示一种汽车尾气净化催化剂载体，载体包括套体1、安装于套体内部的格栅2和固定设置在格栅中多孔复合球3，多孔复合球与格栅壁之间留有尾气通道4，所述多孔复合球包括芯球5，所述芯球为钛合金，芯球外涂覆镍基合金层6，镍基合金层外为多孔复合层7。
实施例1
一种汽车尾气净化催化剂载体，载体包括套体、安装于套体内部的格栅和固定设置在格栅中多孔复合球，多孔复合球与格栅壁之间留有尾气通道，
所述多孔复合球包括芯球，所述芯球为钛合金，芯球外涂覆镍基合金层，镍基合金层外为多孔复合层，
钛合金其各元素成分组成为：Mn 6.1﹪，V 3.2﹪， Zr 2.3﹪，Al 0.73﹪，In 0.54﹪，Ca 0.33﹪，N 0.12﹪，Mg 0.083﹪，Sb 0.064﹪，C 0.043﹪，Ce 0.012﹪，Cr 0.011﹪，余量为Ti，
镍基合金其各元素成分组成为：Mn 0.73﹪，V 0.34﹪，Zr 0.23﹪，In 0.52﹪，Ag0.11﹪，Bi 0.12﹪,Mg 0.083﹪，Ce 0.043﹪，Cr 0.033﹪，Ba 0.023﹪，Nd 0.012﹪，余量为Ni
多孔复合层由（质量）萤石粉100份，活性炭24份，三氧化二铝13份，氯化钠10份，二氧化硅6份，二氧化钛5份，三氧化二铬5份，烧失成孔剂62份，成型粘结剂81份，混合后得到混合料，将混合料包覆在镍基合金层外得到球坯，将坯球在75℃干燥4小时；将干燥后的坯球在隧道窑中于620℃烧成，得到多孔复合球，多孔复合层的比表面为470-480m2/g，孔容为0.75-0.8cm3/g。

Claims (1)

1.一种汽车尾气净化催化剂载体，载体包括套体、安装于套体内部的格栅和固定设置在格栅中多孔复合球，多孔复合球与格栅壁之间留有尾气通道，栅壁之间形成的格栅孔之间具有多个多孔复合球并排纵向排列于格栅壁之间，与格栅壁形成尾气通道，
所述多孔复合球包括芯球，所述芯球为钛合金，芯球外涂覆镍基合金层，镍基合金层外为多孔复合层，
钛合金其各元素成分组成为：Mn 6.1﹪，V 3.2﹪， Zr 2.3﹪，Al 0.73﹪，In 0.54﹪，Ca 0.33﹪，N 0.12﹪，Mg 0.083﹪，Sb 0.064﹪，C 0.043﹪，Ce 0.012﹪，Cr 0.011﹪，余量为Ti，
镍基合金其各元素成分组成为：Mn 0.73﹪，V 0.34﹪，Zr 0.23﹪，In 0.52﹪，Ag0.11﹪，Bi 0.12﹪,Mg 0.083﹪，Ce 0.043﹪，Cr 0.033﹪，Ba 0.023﹪，Nd 0.012﹪，余量为Ni
多孔复合层由（质量）萤石粉100份，活性炭24份，三氧化二铝13份，氯化钠10份，二氧化硅6份，二氧化钛5份，三氧化二铬5份，烧失成孔剂62份，成型粘结剂81份，混合后得到混合料，将混合料包覆在镍基合金层外得到球坯，将坯球在75℃干燥4小时；将干燥后的坯球在隧道窑中于620℃烧成，得到多孔复合球，多孔复合层的比表面为470-480m2/g，孔容约为0.75-0.8cm3/g。
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