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公开(公告)号：US11571651B2
公开(公告)日：2023-02-07
申请号：US16382335
申请日：2019-04-12
申请人： Neel Rangnekar , Yang Luo , Jennifer Bugayong Luna
发明人： Neel Rangnekar , Yang Luo , Jennifer Bugayong Luna
IPC分类号： B01D53/04 , B01J20/20 , B01D53/047 , B01J20/12 , B01J20/16 , B01J20/28 , B01D53/02 , B01J20/32
摘要： The invention relates to the intensification of hydrogen PSA processes through utilization of specifically engineered core-shell composite adsorbents. Different embodiments of core-shell adsorbents can be used with either high or low heat capacity cores, and different adsorbent shells (e.g. activated carbon, zeolite, silica gel, alumina etc.) resulting in higher mass transfer rates and hence sharper mass transfer fronts during the PSA process. The location of the limiting impurity front determines the product purity. Therefore, with sharper impurity fronts, lower height of adsorbent bed is required, and cycle time can be proportionally reduced. Also, thermal swing during the PSA can be reduced by use of such adsorbents. The use of a high heat capacity core to reduce the thermal swing, leads to higher overall working capacity of the adsorbent bed.
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公开(公告)号：US11566082B2
公开(公告)日：2023-01-31
申请号：US15525688
申请日：2015-11-11
发明人： Gustav Rodrigo , Tomas Bjorkman , Mats Ander
IPC分类号： C07K16/46 , B01D15/38 , B01J20/289 , B01J20/32 , C07K1/22 , C07K14/31 , C07K16/00 , C07K16/06
摘要： An Fc-binding polypeptide of improved alkali stability, comprising a mutant of an Fc-binding domain of Staphylococcus Protein A (SpA), as defined by SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO:3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO 26 or SEQ ID NO 27, wherein at least the alanine residue at the position corresponding to position 42 in SEQ ID NO:4-7 has been mutated to arginine and/or wherein at least the aspartic acid residue at the position corresponding to position 37 in SEQ ID NO:4-7 has been mutated to glutamic acid.
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公开(公告)号：US20230018113A1
公开(公告)日：2023-01-19
申请号：US17807449
申请日：2022-06-17
摘要： A diffusive air purifier includes an air permeable container containing a chemical sorbent or a sorbent precursor. The sorbent has a chemical composition selected to achieve removal of an air pollutant via a chemical reaction that renders the predetermined air pollutant immobile. A method of manufacturing the diffusive air purifier includes impregnating a porous solid with a solution of sorbent precursor and a binding agent and drying the porous solid. A method of purifying indoor air includes detecting a measured concentration of an airborne chemical in an enclosed location; selecting the diffusive air purifier to adsorb the airborne chemical; and placing the diffusive air purifier in the enclosed location. Air diffuses through the outer container and into the sorbent where the chemical to be removed is retained. Air, free of the target chemical, diffuses out of the container and the process repeats.
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公开(公告)号：US11542420B2
公开(公告)日：2023-01-03
申请号：US17181291
申请日：2021-02-22
发明人： John J. Simmons
摘要： A method of treating wood chips to be used as a media for ameliorating oil spills on land or water involves heating in a mixture of petroleum wax and vegetable oil to remove moisture content and open the pores of the wood chip to allow the oil/wax blend to penetrate into the interior of the wood chips and subsequently grinding up the chips to a predetermined mesh size. The ground chips impregnated with wax/oil are then blended with magnetic iron ore concentrate and packaged/bagged for later distribution on an oil slick. The magnetic iron ore concentrate clings to the ground, oil/wax coated wood chips and facilitates retrieving the ground chips that have absorbed the spilled oil using a magnetic pick-up.
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公开(公告)号：US11529608B2
公开(公告)日：2022-12-20
申请号：US17510506
申请日：2021-10-26
发明人： Takeshi Okumura , Masahiro Negami , Katsuhiro Yoshizawa , Akihito Kawano , Yoshimichi Nomura , Hidekazu Iwasaki , Shohei Nishibe
IPC分类号： B01J20/22 , B01D53/62 , B01D53/83 , B01J20/32 , B01J20/28 , B01J20/34 , C01B33/159 , B01D53/02 , B01J20/10 , B01D53/08
摘要： A carbon dioxide adsorbent including silica gel and an amine compound carried by the silica gel. The silica gel has a spherical shape, a particle size ranging from 1 mm to 5 mm inclusive, an average pore diameter ranging from 10 nm to 100 nm inclusive, a pore volume ranging from 0.1 cm3/g to 1.3 cm3/g inclusive, and a waterproof property N that is defined by an expression (1) and that is not lower than 45%, N=(W/W0)×100 (1) where N is the waterproof property in percentage (%) of the silica gel, W0 is a total number of particles of the silica gel immersed in water, W is a number of particles of the silica gel not subjected to breakage out of W0.
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公开(公告)号：US20220388846A1
公开(公告)日：2022-12-08
申请号：US17730820
申请日：2022-04-27
发明人： Chengzhong YU , Meihua YU , Hongwei ZHANG , Yusilawati Ahmad NOR , Hao SONG , Neena MITTER
IPC分类号： C01B32/15 , C01B33/18 , A61K9/51 , B01J20/32 , B01J20/28 , B82Y30/00 , B82Y40/00 , B01J20/10 , H01M4/62 , B01J13/18 , B01J13/20 , A01N25/28 , H01M4/58 , H01M4/66
摘要： Particulate material comprising rough mesoporous hollow nanoparticles. The rough mesoporous hollow nanoparticles may comprise a mesoporous shell, the external surface of which has projections thereon, the projections having smaller sizes than the particle size. The particulate material may be used to deliver active agents, such as insecticides and pesticides. The active agents can enter into the hollow core of the particles and be protected from degradation by sunlight. The rough surface of the particles retains the particles on plant leaves or animal hair. Methods for forming the particles are also described. Carbon particles and methods for forming carbon particles are also described.
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公开(公告)号：US20220387918A1
公开(公告)日：2022-12-08
申请号：US17772766
申请日：2020-10-29
发明人： David BELL
IPC分类号： B01D39/20 , B33Y80/00 , B33Y10/00 , B28B1/00 , B28B11/24 , C21C7/00 , B01J20/08 , B01J20/28 , B01J20/30 , B01J20/32
摘要： A refractory filter suitable for filtering molten metal, such as steel, and a method and powdered composition for producing said filter. The filter comprises refractory material, said refractory material comprising: 60-90 wt % alumina; 8-30 wt % zirconia; and 3-20 wt % magnesia. The powdered composition comprises: 60-90 wt % alumina; 8-30 wt % zirconia; and 3-20 wt % magnesia, wherein the powdered composition comprises less than 12.5 wt % reactive alumina, calcined alumina or a mixture thereof, and wherein the remainder of the alumina is tabular alumina. The method comprises: providing a powdered composition in accordance with the invention; forming a filter precursor from the powdered composition and a liquid component; and firing the filter precursor to form a refractory filter.
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88.发明授权公开(公告)号：US11517879B2
公开(公告)日：2022-12-06
申请号：US17107600
申请日：2020-11-30
发明人： Martin Hall , Sture Larsson , Andreas Muranyi , Gustav Rodrigo , Jinyu Zou , Per-Mikael Aberg
IPC分类号： B01J20/24 , B01D15/38 , B01J20/286 , C07K1/22 , B01J20/32 , C07K14/31 , C07K16/00 , C07K17/00 , B01J20/28 , B01J20/285 , B01J20/289 , C07K17/10
摘要： The present invention relates to a chromatography ligand, which comprises Domain C from Staphylococcus protein A (SpA), or a functional fragment or variant thereof. The chromatography ligand presents an advantageous capability of withstanding harsh cleaning in place (CIF) conditions, and is capable of binding Fab fragments of antibodies. The ligand may be provided with a terminal coupling group, such as arginine or cysteine, to facilitate its coupling to an insoluble carrier such as beads or a membrane. The invention also relates process of using the ligand in isolation of antibodies, and to a purification protocol which may include washing steps and/or regeneration with alkali.
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公开(公告)号：US11517832B2
公开(公告)日：2022-12-06
申请号：US15025751
申请日：2014-09-30
发明人： Steven Diver , Jonathan French
摘要： A metal sequestering material can be contacted with a reaction mixture of a metal-catalyzed reaction to remove transition metals or transition metal complexes. The reaction mixture contains transition metals and a reaction product in solution. These transition metals may be, for example, Pd, Ir, Ru, Rh, Pt, Au, or Hg. The concentration of transition metals in the reaction mixture is reduced to less than 100 ppm or even less than 10 ppm.
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公开(公告)号：US20220372379A1
公开(公告)日：2022-11-24
申请号：US17747614
申请日：2022-05-18
摘要： Disclosed are systems and methods for processing liquefied natural gas (LNG). A LNG production system may include a contaminant removal process with one or more sets of sorbent beds co-loaded with a metal sulfide sorbent and/or metal oxide sorbent. In some examples, the contaminant removal process may include one or more molecular sieve dehydrators co-loaded with a 3A or 4A sieve and a 3A or 4A sieve impregnated with silver. The one or more sets of sorbent beds may be arranged at various locations throughout the LNG production system including upstream of or downstream of heavy component removal beds having activated carbon. In some instances, the LNG production system may include a regeneration process for moving heated fluid, typically feed gas, through a first heavy component removal bed while maintaining other heavy component removal beds online to reduce downtime for the LNG production system, increase production efficiency, and decrease an amount of greenhouse gases released from defrost and flare-offs.
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