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    Electrochemical reductant generation while dosing DEF
    1.
    发明授权
    Electrochemical reductant generation while dosing DEF 有权

    公开(公告)号：US10188986B2

    公开(公告)日：2019-01-29

    申请号：US14935094

    申请日：2015-11-06

    申请人： Randal A. Goffe

    发明人： Randal A. Goffe

    IPC分类号： B01D53/94 ,  F01N3/20 ,  C25B9/04 ,  C25B11/04 ,  C25B11/02 ,  C25B1/00 ,  C25B1/02

    摘要： A diesel exhaust fluid (DEF) doser includes a DEF inlet configured to receive DEF, a DEF outlet configured to spray DEF out of the DEF doser, and an electrochemical cell. The electrochemical cell is located between the DEF inlet and the DEF outlet and couplable to a power source. The electrochemical cell is configured such that, when DEF is flowing from the DEF inlet to the DEF outlet and when the electrochemical cell is coupled to the power source, the electrochemical cell causes an electrolytic reaction in the DEF flowing from the DEF inlet to the DEF outlet to produce gaseous products in the DEF flowing from the DEF inlet to the DEF outlet, and wherein the gaseous products comprise one or more of H2 or NH3.

    THERMALLY INTEGRATED COMPACT AFTERTREATMENT SYSTEM
    2.
    发明申请
    THERMALLY INTEGRATED COMPACT AFTERTREATMENT SYSTEM 审中-公开

    公开(公告)号：US20170128885A1

    公开(公告)日：2017-05-11

    申请号：US14935125

    申请日：2015-11-06

    申请人： Randal A. Goffe

    发明人： Randal A. Goffe

    IPC分类号： B01D53/94

    CPC分类号： B01D53/9477 ,  B01D53/9431 ,  B01D53/944 ,  B01D53/9495 ,  B01D2255/904 ,  F01N3/2066 ,  F01N3/2892 ,  F01N2240/20 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

    摘要： A thermally integrated catalyst aftertreatment exhaust system includes a flow channel that directs diesel exhaust through a diesel oxidation catalyst unit that includes a diesel oxidation catalyst, by a doser that introduces DEF into the diesel exhaust, through a mixing chamber that includes a static metallic mixer coated with a DEF hydrolysis catalyst, and through an SCR unit that includes an SCR catalyst. The diesel oxidation catalyst converts a portion of diesel exhaust into water, carbon dioxide, or nitrogen dioxide. The DEF hydrolysis catalyst facilitates hydrolysis of the mixed DEF and diesel exhaust. The SCR catalyst facilitates reduction of NOx in the diesel exhaust. A first portion of the flow channel is in direct thermal contact with a second portion of the flow channel that houses the SCR unit such that heat from the diesel exhaust before the diesel exhaust reaches the doser is passed to the SCR unit.

    THERMALLY INTEGRATED COMPACT AFTERTREATMENT SYSTEM
    5.
    发明申请
    THERMALLY INTEGRATED COMPACT AFTERTREATMENT SYSTEM 审中-公开

    公开(公告)号：US20190070558A1

    公开(公告)日：2019-03-07

    申请号：US16113815

    申请日：2018-08-27

    申请人： Randal A. Goffe

    发明人： Randal A. Goffe

    IPC分类号： B01D53/94 ,  F01N3/28 ,  F01N3/20

    CPC分类号： B01D53/9477 ,  B01D53/9431 ,  B01D53/944 ,  B01D53/9495 ,  B01D2255/904 ,  F01N3/2066 ,  F01N3/2892 ,  F01N2240/20 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

    摘要： A thermally integrated catalyst aftertreatment exhaust system includes a flow channel that directs diesel exhaust through a diesel oxidation catalyst unit that includes a diesel oxidation catalyst, by a doser that introduces DEF into the diesel exhaust, through a mixing chamber that includes a static metallic mixer coated with a DEF hydrolysis catalyst, and through an SCR unit that includes an SCR catalyst. The diesel oxidation catalyst converts a portion of diesel exhaust into water, carbon dioxide, or nitrogen dioxide. The DEF hydrolysis catalyst facilitates hydrolysis of the mixed DEF and diesel exhaust. The SCR catalyst facilitates reduction of NOx in the diesel exhaust. A first portion of the flow channel is in direct thermal contact with a second portion of the flow channel that houses the SCR unit such that heat from the diesel exhaust before the diesel exhaust reaches the doser is passed to the SCR unit.

    Covalent attachment of macromolecules to polysulfones or polyethersulfones modified to contain functionalizable chain ends
    8.
    发明授权
    Covalent attachment of macromolecules to polysulfones or polyethersulfones modified to contain functionalizable chain ends 失效
    大分子共价连接到改性成含有官能化链末端的聚砜或聚醚砜

    公开(公告)号：US5462867A

    公开(公告)日：1995-10-31

    申请号：US190732

    申请日：1994-02-02

    申请人： A. R. M. Azad ,  Randal A. Goffe

    发明人： A. R. M. Azad ,  Randal A. Goffe

    IPC分类号： C08F8/00 ,  C12N11/06 ,  C07C315/00 ,  C07K17/06 ,  G01N33/549

    CPC分类号： C08F8/00 ,  Y10S436/824 ,  Y10S530/815 ,  Y10S530/816

    摘要： A hydrophobic polymer such as polysulfone or polyethersulfone is modified to contain an increased number of functionalizable chain ends such as by treating with an alkali hydroxide to provide hydroxyl groups. A linker is covalently bonded to a chain end of the polymer and a macromolecule is covalently bonded to the linker. A ligand may be covalently bonded to the macromolecule. The macromolecule can be a natural polymer, a synthetic polymer or a biologically active species. The hydrophobic polymer is preferably in the form of a microporous membrane. By the use of a four-component dope composition, substantially isotropic microporous structures in the form of flat sheets or hollow fibers are produced. An improved spinnerette assembly is provided for the production of hollow fibers.

    摘要翻译： 将疏水性聚合物如聚砜或聚醚砜改性为含有增加数量的可官能化链端，例如通过用碱金属氢氧化物处理以提供羟基。 接头共价键合到聚合物的链端，大分子与接头共价键合。 配体可以与大分子共价键合。 大分子可以是天然聚合物，合成聚合物或生物活性物质。 疏水性聚合物优选为微孔膜的形式。 通过使用四组分涂料组合物，产生基本上各向同性的平板或中空纤维形式的多孔结构。 提供改进的喷丝头组件用于生产中空纤维。