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1. 发明申请

US20130269521A1 METHOD FOR REDUCING EVAPORATED FUEL EMISSION, CANISTER AND ADSORBENT THEREFOR 有权
标题翻译：减少蒸发燃料排放的方法，其吸收剂和吸附剂
公开(公告)号：US20130269521A1
公开(公告)日：2013-10-17
申请号：US13761423
申请日：2013-02-07
申请人： Kuraray Chemical Co., Ltd.
发明人： Mitsunori Nishita , Mitsunori Hitomi , Takayuki Yamada
IPC分类号： F02M35/02
CPC分类号： F02M35/0218 , B01D53/04 , B01D2253/102 , B01D2253/30 , F02M25/0854
摘要： [Object(s)] To provide an adsorbent which achieves a low-emission performance while maintaining the adsorption performance for adsorbing an evaporated fuel component, a canister comprising the adsorbent, and a method for reducing evaporated fuel emission.[Means to Solve the Problems] A second adsorbent (e.g., a granule) filled in a second compartment disposed in a downstream side with respect to a first compartment comprises an activated carbon as an adsorption site and a solid diluent as a non-adsorption site. The adsorbent has a difference in n-butane adsorption volume of not less than 35 g/L between a n-butane vapor concentration of 5% by volume and a n-butane vapor concentration of 50% by volume measured at 25° C., a butane working capacity measured in accordance with ASTM D5228 of not less than 8 g/dL, and a butane desorption rate of not less than 45% when a purge air amount measured in accordance with ASTM D5228 is 30 bed volumes of the adsorbent volume.
摘要翻译： [目的]提供一种在保持吸附蒸发燃料成分的吸附性能的同时实现低排放性能的吸附剂，包含吸附剂的罐，以及减少蒸发燃料排放的方法。 [解决问题的手段]填充在相对于第一隔室的下游侧设置的第二隔室中的第二吸附剂（例如，颗粒）包含作为吸附位点的活性炭和作为非吸附位点的固体稀释剂。吸附剂在25℃下测定的正丁烷蒸气浓度为5体积％和正丁烷蒸气浓度为50体积％之间，正丁烷吸附容量不小于35g / L，根据ASTM D5228测量的丁烷工作容量不小于8g / dL，当根据ASTM D5228测量的吹扫空气量为30体积的吸附剂体积时，丁烷解吸速率不低于45％。

2. 发明授权

US08864877B2 Method for reducing evaporated fuel emission, canister and adsorbent therefor 有权
标题翻译：减少蒸发燃料排放的方法，罐和吸附剂
公开(公告)号：US08864877B2
公开(公告)日：2014-10-21
申请号：US13761423
申请日：2013-02-07
申请人： Kuraray Chemical Co., Ltd.
发明人： Mitsunori Nishita , Mitsunori Hitomi , Takayuki Yamada
IPC分类号： F02M25/08 , B01D53/04 , F02M35/02
CPC分类号： F02M35/0218 , B01D53/04 , B01D2253/102 , B01D2253/30 , F02M25/0854
摘要： To provide an adsorbent which achieves a low-emission performance while maintaining the adsorption performance for adsorbing an evaporated fuel component, a canister comprising the adsorbent, and a method for reducing evaporated fuel emission. A second adsorbent (e.g., a granule) filled in a second compartment disposed in a downstream side with respect to a first compartment comprises an activated carbon as an adsorption site and a solid diluent as a non-adsorption site. The adsorbent has a difference in n-butane adsorption volume of not less than 35 g/L between a n-butane vapor concentration of 5% by volume and a n-butane vapor concentration of 50% by volume measured at 25° C., a butane working capacity measured in accordance with ASTM D5228 of not less than 8 g/dL, and a butane desorption rate of not less than 45% when a purge air amount measured in accordance with ASTM D5228 is 30 bed volumes of the adsorbent volume.
摘要翻译：提供一种吸附剂，同时保持用于吸附蒸发燃料成分的吸附性能，包含吸附剂的罐，以及减少蒸发燃料排放的方法。填充在相对于第一隔室的下游侧设置的第二隔室的第二吸附剂（例如，颗粒）包含作为吸附位点的活性炭和作为非吸附位点的固体稀释剂。吸附剂在25℃下测定的正丁烷蒸气浓度为5体积％和正丁烷蒸气浓度为50体积％之间，正丁烷吸附容量不小于35g / L，根据ASTM D5228测量的丁烷工作容量不小于8g / dL，当根据ASTM D5228测量的吹扫空气量为30体积的吸附剂体积时，丁烷解吸速率不低于45％。

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