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Method for the removal of nitrogen oxides from exhaust gas by selective catalytic reduction in presence of an SCR catalyst comprising a Fe-AEI zeolithic material essentially free of alkali metal

机译：在含有基本上不含碱金属的Fe-AEI沸石材料的SCR催化剂存在下，通过选择性催化还原从废气中除去氮氧化物的方法

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摘要

A method for the removal of nitrogen oxides from exhaust, flue or off gas by selective catalytic reduction in presence of ammonia as a reductant, comprising the steps of contacting the exhaust gas together with the ammonia or a precursor thereof with an SCR catalyst comprising a Fe-AEI zeolite material essentially free of alkali metal ions (Alk), having the following molar compositions:SiO₂:oAl₂O₃:pFe:qAlkwherein o is in the range from 0.001 to 0.2;wherein p is in the range from 0.001 to 0.2;wherein Alk is one or more of alkali metal ions and wherein q is below 0.02.

机译：一种在氨作为还原剂的存在下通过选择性催化还原从废气，烟道或废气中除去氮氧化物的方法，该方法包括使废气与氨或其前体一起与包含Fe的SCR催化剂接触的步骤。 -基本不含碱金属离子（Alk）的AEI沸石材料，具有以下摩尔组成：<？in-line-formulae description =“在线公式” end =“ lead”？> SiO _{2 ：o Al _{2 O _{3 ：p Fe： q Alk <？in-line-formulae description =“ In-line Formulae” end =“ tail”？>其中o在0.001至0.2的范围内;其中p在0.001至0.2的范围内;其中Alk是碱金属离子中的一种或多种，并且其中q小于0.02。}}} 展开▼

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公开/公告号US10427098B2

专利类型

公开/公告日2019-10-01

原文格式PDF

申请/专利权人 UMICORE AG &CO. KG;
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申请/专利号US201715779458

发明设计人 NURIA MARTÍN GARCÍA;MANUEL MOLINER MARÍN;AVELINO CORMA CANÓS;JOAKIM REIMER THØGERSEN;PETER NICOLAI RAVNBORG VENNESTRØM;
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申请日2017-01-30

分类号B01D53/86;B01D53/94;B01J29/76;B01J35;B01J35/04;F01N3/20;F01N3/28;B01J29/14;

国家 US

入库时间 2022-08-21 12:16:13

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1. 通过在包含基本上不含碱金属的FE-AEI沸石材料的SCR催化剂的存在下进行选择性催化还原从废气中去除氮氧化物的方法 [P] . 中国专利： CN108472587B . 2021.11.09

2. 通过在包含基本上不含碱金属的FE-AEI沸石材料的SCR催化剂的存在下进行选择性催化还原从废气中去除氮氧化物的方法 [P] . 中国专利： CN108472587A . 2018-08-31

3. METHOD FOR THE REMOVAL OF NITROGEN OXIDES FROM EXHAUST GAS BY SELECTIVE CATALYTIC REDUCTION IN PRESENCE OF AN SCR CATALYST COMPRISING A FE-AEI ZEOLITHIC MATERIAL ESSENTIALLY FREE OF ALKALI METAL [P] . 欧洲知识产权局专利： EP3411131B1 . 2020-03-11

机译：在选择性地包含基本不含碱金属的Fe-AEI沸石材料的SCR催化剂中，通过选择性催化还原去除废气中的氮氧化物的方法

4. METHOD FOR THE REMOVAL OF NITROGEN OXIDES FROM EXHAUST GAS BY SELECTIVE CATALYTIC REDUCTION IN PRESENCE OF AN SCR CATALYST COMPRISING A FE-AEI ZEOLITHIC MATERIAL ESSENTIALLY FREE OF ALKALI METAL [P] . 欧洲知识产权局专利： EP3411131A1 . 2018-12-12

机译：在选择性地包含基本不含碱金属的Fe-AEI沸石材料的SCR催化剂中，通过选择性催化还原去除废气中的氮氧化物的方法

5. Method for the Removal of Nitrogen Oxides from Exhaust Gas by Selective Catalytic Reduction in Presence of an SCR Catalyst Comprising a Fe-AEI Zeolithic Material Essentially Free of Alkali Metal [P] . 美国专利： US2018250632A1 . 2018-09-06

机译：在基本不含碱金属的Fe-AEI沸石材料的SCR催化剂存在下通过选择性催化还原从废气中去除氮氧化物的方法

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