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公开(公告)号：US20100005788A1
公开(公告)日：2010-01-14
申请号：US12503026
申请日：2009-07-14
CPC分类号： F01N9/002 , F01N3/0253 , F01N2240/30 , F01N2560/022 , F01N2560/06 , F01N2560/07 , F01N2610/04 , F01N2610/05 , F01N2610/146 , F01N2900/08 , Y02T10/47
摘要： A method of regenerating a diesel particulate filter involves directing an exhaust stream from a combustion engine through the diesel particulate filter and selectively introducing a syngas stream at least periodically into the diesel particulate filter to regenerate it. The syngas stream is introduced at a first average flow rate during an initial regeneration stage and at a second average flow rate during a subsequent regeneration stage. In preferred embodiments the flow rate is varied in order to reduce temperature spikes and/or the rate at which CO slips through the filter during regeneration. In certain embodiments the first average flow rate is lower than the second average flow rate.
摘要翻译： 再生柴油微粒过滤器的方法包括将来自内燃机的废气流引导通过柴油机微粒过滤器，并选择性地将合成气流定期引入柴油机微粒过滤器以再生柴油微粒过滤器。 合成气流在初始再生阶段以第一平均流速引入，并且在随后的再生阶段以第二平均流速引入。 在优选实施例中，为了降低温度尖峰和/或在再生期间CO滑过过滤器的速率而改变流速。 在某些实施方案中，第一平均流速低于第二平均流速。
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公开(公告)号：US09169765B2
公开(公告)日：2015-10-27
申请号：US12503026
申请日：2009-07-14
CPC分类号： F01N9/002 , F01N3/0253 , F01N2240/30 , F01N2560/022 , F01N2560/06 , F01N2560/07 , F01N2610/04 , F01N2610/05 , F01N2610/146 , F01N2900/08 , Y02T10/47
摘要： A method of regenerating a diesel particulate filter involves directing an exhaust stream from a combustion engine through the diesel particulate filter and selectively introducing a syngas stream at least periodically into the diesel particulate filter to regenerate it. The syngas stream is introduced at a first average flow rate during an initial regeneration stage and at a second average flow rate during a subsequent regeneration stage. In preferred embodiments the flow rate is varied in order to reduce temperature spikes and/or the rate at which CO slips through the filter during regeneration. In certain embodiments the first average flow rate is lower than the second average flow rate.
摘要翻译： 再生柴油微粒过滤器的方法包括将来自内燃机的废气流引导通过柴油机微粒过滤器，并选择性地将合成气流定期引入柴油机微粒过滤器以再生柴油微粒过滤器。 合成气流在初始再生阶段以第一平均流速引入，并且在随后的再生阶段以第二平均流速引入。 在优选实施例中，为了降低温度尖峰和/或在再生期间CO滑过过滤器的速率而改变流速。 在某些实施方案中，第一平均流速低于第二平均流速。
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公开(公告)号：US20080314032A1
公开(公告)日：2008-12-25
申请号：US12120935
申请日：2008-05-15
IPC分类号： F01N3/021
CPC分类号： B01D46/2429 , B01D46/2451 , B01D46/2455 , B01D46/2459 , B01D46/2466 , B01D46/247 , B01D2046/2433 , F01N3/022 , F01N3/0253 , F01N2330/60
摘要： A particulate filter is fluidly connected to and disposed downstream from a diesel engine exhaust stream outlet. The filter has a plurality of filter segments that have differing physical properties or structural characteristics such that the engine exhaust stream to fuel stream ratio is maintained substantially consistent among segments during their regeneration. A method for regenerating a segmented filter comprises maintaining the engine exhaust stream to fuel stream ratio substantially consistent among segments during their regeneration.
摘要翻译： 颗粒过滤器与柴油发动机排气流出口流体连接并设置在下游。 过滤器具有多个过滤器段，其具有不同的物理性能或结构特征，使得发动机排气流与燃料流比在其再生期间在段之间保持基本一致。 用于再生分段过滤器的方法包括将发动机排气流维持在其再生期间在段之间基本一致的燃料流量比。
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公开(公告)号：US09157357B2
公开(公告)日：2015-10-13
申请号：US13214046
申请日：2011-08-19
申请人： Xuantian Li , William Allison Logan , Christopher Gordon Stoner , Andre Boulet , Erik Paul Johannes , Paul Sebright Towgood , Jacobus Neels
发明人： Xuantian Li , William Allison Logan , Christopher Gordon Stoner , Andre Boulet , Erik Paul Johannes , Paul Sebright Towgood , Jacobus Neels
CPC分类号： F01N3/2073 , C01B3/36 , F01N2240/30 , F02D19/022 , F02M21/0206 , F02M21/0215 , F02M21/0227 , F02M25/12 , Y02T10/121 , Y02T10/32
摘要： In situations where the demand for syngas is intermittent, a fuel processor is operated to provide a high absolute hydrogen and carbon monoxide production, rather than to give a high fuel-specific hydrogen and carbon monoxide production. When a syngas generator is operated to intermittently produce syngas, a heating process can be performed between periods of syngas demand in order to keep the fuel processor within a desired temperature range. The heating process can comprise various steps or events including performing a heating event, allowing a standby period, and/or performing a carbon conversion event. Carbon formed during the process of converting fuel to syngas can be advantageously converted to maintain the temperature of the fuel processor within a desired range in between periods of syngas demand. A predictive method can be employed to control at least a portion of the heating process.
摘要翻译： 在对合成气的需求是间歇性的情况下，燃料处理器被运行以提供高的绝对氢气和一氧化碳的产生，而不是提供高燃料特定的氢气和一氧化碳的生产。 当操作合成气发生器以间歇地产生合成气时，可以在合成气需求期间进行加热过程，以便将燃料处理器保持在期望的温度范围内。 加热过程可以包括各种步骤或事件，包括执行加热事件，允许待机时间段和/或执行碳转化事件。 在将燃料转化为合成气的过程中形成的碳可以有利地转化为将燃料处理器的温度维持在合成气需求期间的期望范围内。 可以采用预测方法来控制加热过程的至少一部分。
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公开(公告)号：US20120144803A1
公开(公告)日：2012-06-14
申请号：US13214046
申请日：2011-08-19
申请人： Xuantian Li , William Allison Logan , Christopher Gordon Stoner , Andre Boulet , Erik Paul Johannes , Paul Sebright Towgood , Jacobus Neels
发明人： Xuantian Li , William Allison Logan , Christopher Gordon Stoner , Andre Boulet , Erik Paul Johannes , Paul Sebright Towgood , Jacobus Neels
CPC分类号： F01N3/2073 , C01B3/36 , F01N2240/30 , F02D19/022 , F02M21/0206 , F02M21/0215 , F02M21/0227 , F02M25/12 , Y02T10/121 , Y02T10/32
摘要： In situations where the demand for syngas is intermittent, a fuel processor is operated to provide a high absolute hydrogen and carbon monoxide production, rather than to give a high fuel-specific hydrogen and carbon monoxide production. When a syngas generator is operated to intermittently produce syngas, a heating process can be performed between periods of syngas demand in order to keep the fuel processor within a desired temperature range. The heating process can comprise various steps or events including performing a heating event, allowing a standby period, and/or performing a carbon conversion event. Carbon formed during the process of converting fuel to syngas can be advantageously converted to maintain the temperature of the fuel processor within a desired range in between periods of syngas demand. A predictive method can be employed to control at least a portion of the heating process.
摘要翻译： 在对合成气的需求是间歇性的情况下，燃料处理器被运行以提供高的绝对氢气和一氧化碳的产生，而不是提供高燃料特定的氢气和一氧化碳的生产。 当操作合成气发生器以间歇地产生合成气时，可以在合成气需求期间进行加热过程，以便将燃料处理器保持在期望的温度范围内。 加热过程可以包括各种步骤或事件，包括执行加热事件，允许待机时间段和/或执行碳转化事件。 在将燃料转化为合成气的过程中形成的碳可以有利地转化为将燃料处理器的温度维持在合成气需求期间的期望范围内。 可以采用预测方法来控制加热过程的至少一部分。
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