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    • 4. 发明授权
    • Dynamic control of selective non-catalytic reduction system for semi-batch-fed stoker-based municipal solid waste combustion
    • 用于半分批供料的基于垃圾的城市固体废物燃烧的选择性非催化还原系统的动态控制
    • US07712306B2
    • 2010-05-11
    • US11960148
    • 2007-12-19
    • Mark L. WhiteStephen G. Deduck
    • Mark L. WhiteStephen G. Deduck
    • F01N3/00
    • B01D53/56B01D2251/2062
    • The present invention controls reagent flow levels in a selective non-catalytic reduction (SNCR) system by more accurately predicting Nitrogen Oxides (NOx) production with a municipal waste combustor. In one embodiment, the reagent levels correspond with measured furnace temperatures. The reagent levels may have a baseline level from prior measured NOx that is then modified according to temperatures measurements. A slow controller may use NOx measurements over an extended period to define a base regent level, and a fast controller may use additional information such as the furnace temperature to modify the base regent level. The fast controller may further receive two additional signals that are added individually or together to maximize NOx control while minimizing ammonia slip from the reagent. The two signals are a feed-forward signal from the combustion controller and a feedback signal from an ammonia analyzer downstream of the combustion zone.
    • 本发明通过更准确地预测用城市垃圾燃烧器产生氮氧化物(NOx)来控制选择性非催化还原(SNCR)系统中的试剂流量水平。 在一个实施方案中,试剂水平对应于测量的炉温。 试剂水平可以具有来自先前测量的NOx的基准水平,然后根据温度测量来修改。 慢速控制器可以在长时间内使用NOx测量来定义基准摄氏度,并且快速控制器可以使用诸如炉温度的附加信息来修改基本摄氏度。 快速控制器可以进一步接收两个附加信号,这些附加信号被单独或一起添加以最大化NOx控制,同时最小化来自试剂的氨滑移。 两个信号是来自燃烧控制器的前馈信号和来自燃烧区下游的氨分析器的反馈信号。
    • 5. 发明申请
    • DYNAMIC CONTROL OF SELECTIVE NON-CATALYTIC REDUCTION SYSTEM FOR SEMI-BATCH-FED STOKER-BASED MUNICIPAL SOLID WASTE COMBUSTION
    • 选择性非催化还原系统的动态控制系统,用于基于半自动储罐的城市固体废物燃烧
    • US20080148713A1
    • 2008-06-26
    • US11960148
    • 2007-12-19
    • Mark L. WhiteStephen G. Deduck
    • Mark L. WhiteStephen G. Deduck
    • F01N9/00
    • B01D53/56B01D2251/2062
    • The present invention controls reagent flow levels in a selective non-catalytic reduction (SNCR) system by more accurately predicting Nitrogen Oxides (NOx) production with a municipal waste combustor. In one embodiment, the reagent levels correspond with measured furnace temperatures. The reagent levels may have a baseline level from prior measured NOx that is then modified according to temperatures measurements. A slow controller may use NOx measurements over an extended period to define a base regent level, and a fast controller may use additional information such as the furnace temperature to modify the base regent level. The fast controller may further receive two additional signals that are added individually or together to maximize NOx control while minimizing ammonia slip from the reagent. The two signals are a feed-forward signal from the combustion controller and a feedback signal from an ammonia analyzer downstream of the combustion zone.
    • 本发明通过更准确地预测用城市垃圾燃烧器产生氮氧化物(NOx)来控制选择性非催化还原(SNCR)系统中的试剂流量水平。 在一个实施方案中,试剂水平对应于测量的炉温。 试剂水平可以具有来自先前测量的NOx的基准水平,然后根据温度测量来修改。 慢速控制器可以在长时间内使用NOx测量来定义基准摄氏度,并且快速控制器可以使用诸如炉温度的附加信息来修改基本摄氏度。 快速控制器可以进一步接收两个附加信号,这些附加信号被单独或一起添加以最大化NOx控制,同时最小化来自试剂的氨滑移。 两个信号是来自燃烧控制器的前馈信号和来自燃烧区下游的氨分析器的反馈信号。