专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2017168327A3 DESULFATION METHOD FOR SCR CATALYST 审中-公开
公开(公告)号：WO2017168327A3
公开(公告)日：2017-10-05
申请号：PCT/IB2017/051774
申请日：2017-03-28
申请人： BASF CORPORATION
发明人： YANG, Xiaofan , TANG, Weiyong , ZHANG, Ze
IPC分类号： B01J38/04 , B01J29/90 , F01N3/20 , B01J29/06 , B01J29/70 , B01J29/72 , B01J29/072 , B01D53/94
摘要： The present invention provides methods for low temperature desulfating sulfur-poisoned SCR catalysts, and emission control systems adapted to apply such desulfating methods, in order to regenerate catalytic NOx conversion activity. The methods are adapted for treating an SCR catalyst to desorb sulfur from the surface of the SCR catalyst and increase NOx conversion activity of the SCR catalyst, the treating step including treating the SCR catalyst with a gaseous stream comprising a reductant for a first treatment time period and at a first treatment temperature, wherein the first treatment temperature is about 350°C or less, followed by a second treatment time period and a second treatment temperature higher than the first treatment temperature, wherein the molar ratio of reductant to NOx during the treating step is about 1.05:1 or higher.

2. 发明申请

WO2017168327A2 DESULFATION METHOD FOR SCR CATALYST 审中-公开
标题翻译： SCR催化剂的脱硫方法
公开(公告)号：WO2017168327A2
公开(公告)日：2017-10-05
申请号：PCT/IB2017/051774
申请日：2017-03-28
申请人： BASF CORPORATION
发明人： YANG, Xiaofan , TANG, Weiyong , ZHANG, Ze
IPC分类号： B01J38/04 , B01J29/90 , F01N3/20 , B01J29/06 , B01J29/70 , B01J29/72 , B01J29/072 , B01D53/94
摘要： The present invention provides methods for low temperature desulfating sulfur-poisoned SCR catalysts, and emission control systems adapted to apply such desulfating methods, in order to regenerate catalytic NOx conversion activity. The methods are adapted for treating an SCR catalyst to desorb sulfur from the surface of the SCR catalyst and increase NOx conversion activity of the SCR catalyst, the treating step including treating the SCR catalyst with a gaseous stream comprising a reductant for a first treatment time period and at a first treatment temperature, wherein the first treatment temperature is about 350°C or less, followed by a second treatment time period and a second treatment temperature higher than the first treatment temperature, wherein the molar ratio of reductant to NOx during the treating step is about 1.05:1 or higher.
摘要翻译：本发明提供了用于低温脱硫硫中毒的SCR催化剂的方法以及适用于应用这种脱硫方法以便再生催化NOx转化活性的排放控制系统。该方法适于处理SCR催化剂以从SCR催化剂的表面解吸硫并提高SCR催化剂的NO x转化活性，处理步骤包括用包含还原剂的气流在第一处理时间段处理SCR催化剂并且在第一处理温度下，其中第一处理温度为约350℃或更低，接着是第二处理时间段和高于第一处理温度的第二处理温度，其中在处理期间还原剂与NO x的摩尔比步骤约为1.05：1或更高。

3. 发明公开

EP3436191A2 DESULFATION METHOD FOR SCR CATALYST 有权
公开(公告)号：EP3436191A2
公开(公告)日：2019-02-06
申请号：EP17773405.0
申请日：2017-03-28
申请人： BASF Corporation
发明人： YANG, Xiaofan , TANG, Weiyong , ZHANG, Ze
IPC分类号： B01J38/04 , B01J29/90 , F01N3/20 , B01J29/06 , B01J29/70 , B01J29/72 , B01J29/072 , B01D53/94

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式