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公开(公告)号：US11014830B2
公开(公告)日：2021-05-25
申请号：US15844074
申请日：2017-12-15
IPC分类号： C02F1/28 , B01J20/28 , B01J20/32 , B01J20/20 , C07C31/20 , C07C39/08 , C07C215/10 , C07F1/08 , C07F3/04 , C07F3/06 , C07F5/06 , C07F15/02 , C02F101/10 , C02F103/10 , C02F103/34 , C02F103/16
摘要： Sorbent compositions that include a base sorbent material having a high porosity and surface area and a boron-selective agent are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs). By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron at relatively low cost is provided.
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公开(公告)号：US20210188665A1
公开(公告)日：2021-06-24
申请号：US17194065
申请日：2021-03-05
IPC分类号： C02F1/28 , B01J20/28 , B01J20/32 , B01J20/20 , C07C31/20 , C07C39/08 , C07C215/10 , C07F1/08 , C07F3/04 , C07F3/06 , C07F5/06 , C07F15/02
摘要： Sorbent compositions that includes a base sorbent material having a high porosity and surface area and a boron-selective agent are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs). By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron at relatively low cost is provided.
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公开(公告)号：US20240116023A1
公开(公告)日：2024-04-11
申请号：US18459921
申请日：2023-09-01
发明人： Micala Mitchek , Joseph M. Wong , Robert Huston , Fred Cannon , David Park , Lingyan Song , Mowen Li
CPC分类号： B01J20/20 , B01J20/22 , B01J20/28059 , B01J20/28071 , B01J2220/46
摘要： The present disclosure is directed to a multi-functional composition including activated carbon that is useful for injection into aqueous mediums such as soil or groundwater for sequestration of contaminants in a contaminated plume. The composition of activated carbon may include physical and chemical properties to enhance mechanism of contaminant physisorption and chemisorption including enhanced adsorption kinetics through manipulation of particle surface area, enhanced capacity and selectivity through controlled pore size distribution and enhanced electrostatic and hydrophobic interactions with contaminants. The multi-functional composition may further include a positively-charged nitrogen-functionalized organic compound and/or moieties that improve the activated carbon's ability to sequester contaminants in a subsurface environment.
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公开(公告)号：US20230041369A1
公开(公告)日：2023-02-09
申请号：US17967462
申请日：2022-10-17
发明人： Roger H. Cayton , Mowen Li , Micala D. Mitchek , Lingyan Song
摘要： A sorbent composition for the sequestration of mercury from a gas stream, a method for sequestering mercury from a gas stream and a method for the manufacture of a sorbent composition. The sorbent composition includes a highly porous particulate sorbent and at least two additive components, namely a non-halogen metal compound comprising a metal cation and an inorganic sulfur-containing compound, where at least a portion of the sulfur in the sulfur-containing compound has an oxidation state of equal to or less than +4. The method includes injecting the highly porous particulate sorbent and the two additive components into a gas stream, either discretely or as a single sorbent composition, to sequester mercury in the particulate sorbent. The method has a high degree of efficacy for mercury removal without requiring the addition of halogens to the gas stream.
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公开(公告)号：US11491434B2
公开(公告)日：2022-11-08
申请号：US16418975
申请日：2019-05-21
发明人： Roger H. Cayton , Mowen Li , Micala D. Mitchek , Lingyan Song
摘要： A sorbent composition for the sequestration of mercury from a gas stream, a method for sequestering mercury from a gas stream and a method for the manufacture of a sorbent composition. The sorbent composition includes a highly porous particulate sorbent and at least two additive components, namely a non-halogen metal compound comprising a metal cation and an inorganic sulfur-containing compound, where at least a portion of the sulfur in the sulfur-containing compound has an oxidation state of equal to or less than +4. The method includes injecting the highly porous particulate sorbent and the two additive components into a gas stream, either discretely or as a single sorbent composition, to sequester mercury in the particulate sorbent. The method has a high degree of efficacy for mercury removal without requiring the addition of halogens to the gas stream.
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6.发明公开公开(公告)号：US20240100501A1
公开(公告)日：2024-03-28
申请号：US18472588
申请日：2023-09-22
发明人： Micala Mitchek , Joseph M. Wong , Robert Huston , David Park , Lingyan Song , Mowen Li
CPC分类号： B01J20/20 , B01J20/28004 , B01J20/28059 , B01J20/28071 , C02F1/281 , C02F2101/108
摘要： The present disclosure is directed to a multi-functional composition including activated carbon that is useful for injection or other application into soil or groundwater for removal (e.g., via adsorption) of inorganic contaminants in a contaminated plume. The composition of activated carbon may include physical and chemical properties to enhance the mechanism of contaminant physisorption and chemisorption including enhanced electrostatic interactions with contaminants. The multi-functional composition may further include one or more second materials (e.g., contaminant-selective agents) which comprise one or more compounds that improve the activated carbon's ability to sequester or otherwise immobilize inorganic contaminants in a subsurface environment.
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公开(公告)号：US20200047107A1
公开(公告)日：2020-02-13
申请号：US16418975
申请日：2019-05-21
发明人： Roger H. Cayton , Mowen Li , Micala D. Mitchek , Lingyan Song
摘要： A sorbent composition for the sequestration of mercury from a gas stream, a method for sequestering mercury from a gas stream and a method for the manufacture of a sorbent composition. The sorbent composition includes a highly porous particulate sorbent and at least two additive components, namely a non-halogen metal compound comprising a metal cation and an inorganic sulfur-containing compound, where at least a portion of the sulfur in the sulfur-containing compound has an oxidation state of equal to or less than +4. The method includes injecting the highly porous particulate sorbent and the two additive components into a gas stream, either discretely or as a single sorbent composition, to sequester mercury in the particulate sorbent. The method has a high degree of efficacy for mercury removal without requiring the addition of halogens to the gas stream.
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公开(公告)号：US20180170773A1
公开(公告)日：2018-06-21
申请号：US15844074
申请日：2017-12-15
IPC分类号： C02F1/28 , B01J20/28 , B01J20/32 , B01J20/20 , C07C31/20 , C07C39/08 , C07C215/10 , C07F1/08 , C07F3/04 , C07F3/06 , C07F5/06 , C07F15/02
CPC分类号： C02F1/283 , B01J20/20 , B01J20/28057 , B01J20/28076 , B01J20/3255 , B01J20/327 , B01J20/3285 , B01J2220/50 , C02F1/288 , C02F2101/108 , C02F2103/10 , C02F2103/16 , C02F2103/346 , C07C31/202 , C07C31/205 , C07C39/08 , C07C215/10 , C07F1/08 , C07F3/04 , C07F3/06 , C07F5/069 , C07F15/025
摘要： A sorbent composition for the removal of boron and/or borates from a fluid such as an aqueous medium. The sorbent composition includes a base sorbent material having a high porosity and surface area, and a boron-selective agent. By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron and a relatively low cost is provided. The sorbent compositions are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs).
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