公开(公告)号：US20230373874A1

公开(公告)日：2023-11-23

申请号：US18031527

申请日：2022-01-11

申请人： CASALE LIMITED

发明人： Ken Gaspard Marcel Monstrey ,  Weizhen Wang

IPC分类号： C05C3/00 ,  B01D53/54 ,  B01D53/78 ,  B01J2/16 ,  C05C9/00 ,  C05G5/12

CPC分类号： C05C3/005 ,  B01D53/54 ,  B01D53/78 ,  B01J2/16 ,  C05C9/005 ,  C05G5/12 ,  B01D2257/408 ,  B01D2251/506

摘要： Process and plant for the production of a urea ammonium sulfate granulate. In a first fluidized bed a first spraying liquid is sprayed comprising a urea melt and an aqueous solution of ammonium sulfate, e.g. a (near-) eutectic mixture. The bed temperature is below the crystallization temperature of the sprayed mixture. In a next compartment the granulate is fluidized to form a second fluidized bed. A second spraying liquid comprising a urea melt is sprayed into the second fluidized bed with a bed temperature higher than the bed temperature of the first fluidized bed and lower than the crystallization temperature of the sprayed second spraying liquid.

公开(公告)号：US20230364579A1

公开(公告)日：2023-11-16

申请号：US18196161

申请日：2023-05-11

申请人： Molecular Products Inc.

发明人： James A. Hern ,  Richard Mackay ,  Christopher Vizcaino

IPC分类号： B01J20/06 ,  B01J20/20 ,  B01J20/28 ,  B01J20/32 ,  B01J20/30 ,  C23C16/455 ,  C23C16/40 ,  C23C16/44 ,  C23C16/02 ,  C23C16/442 ,  B01D53/02

CPC分类号： B01J20/06 ,  B01D53/02 ,  B01J20/20 ,  B01J20/28016 ,  B01J20/2803 ,  B01J20/28042 ,  B01J20/3071 ,  B01J20/3204 ,  B01J20/3225 ,  B01J20/3236 ,  C23C16/0227 ,  C23C16/40 ,  C23C16/405 ,  C23C16/407 ,  C23C16/408 ,  C23C16/4417 ,  C23C16/442 ,  C23C16/45527 ,  C23C16/45555 ,  B01D2253/102 ,  B01D2253/1124 ,  B01D2253/25 ,  B01D2257/2064 ,  B01D2257/302 ,  B01D2257/408

摘要： A metal oxide impregnated activated carbon and a method of making the metal oxide impregnated carbon wherein the application of metal oxide impregnants are chemisorbed to active sites in a pore structure using atomic layer deposition to enable targeted impregnant compositions and configurations on activated carbons used for air purification devices.

公开(公告)号：US20180161721A1

公开(公告)日：2018-06-14

申请号：US15580863

申请日：2016-06-03

申请人： Dow Global Technologies LLC

发明人： Ross E. Dugas ,  Jonathan W. Leister ,  Jack D. Mcjannett

IPC分类号： B01D53/14 ,  C10L3/10 ,  C01B3/52

CPC分类号： B01D53/1493 ,  B01D53/1456 ,  B01D2252/2026 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  B01D2257/408 ,  B01D2257/504 ,  C01B3/52 ,  C01B2203/0415 ,  C10K1/003 ,  C10L3/102 ,  C10L2290/541 ,  Y02P20/152

摘要： An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether in combination with other alkyl ethers of alkylene glycols. Utilization of a mixture consisting of 60 to 84 weight percent tetraethylene glycol dimethyl ether produces significant benefits in freeze point reduction. A solvent based said mixture of 60 to 84 weight percent tetraethylene glycol dimethyl ether can be used neat or as an aqueous mixture or can be added to the existing recirculating solvent stream to change the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.

公开(公告)号：US20180155204A1

公开(公告)日：2018-06-07

申请号：US15575594

申请日：2016-06-08

申请人： EPC ENGINEERING & TECHNOLOGIES GMBH

发明人： Jens Henkel ,  Jürgen Rassbach ,  Klaus Trenkmann

IPC分类号： C01C3/10 ,  C01C3/02 ,  B01D53/14 ,  B01D53/96 ,  B01D9/00 ,  B01D21/26

CPC分类号： C01C3/10 ,  B01D9/0031 ,  B01D21/262 ,  B01D53/1456 ,  B01D53/1493 ,  B01D53/96 ,  B01D2251/604 ,  B01D2257/408 ,  C01C3/0212

摘要： The invention relates to a process for the preparation of alkali metal cyanides as a solid substance, comprising the steps of: i) an absorption step in the form of an absorption of hydrogen cyanide from a hydrogen cyanide-containing synthesis gas in an aqueous alkali metal hydroxide solution; ii) a crystallization step in the form of introducing said alkali metal cyanide solution into an evaporative crystallizer; iii) a separation step; iv) a recycle step; v) a drying step.

公开(公告)号：US09975079B2

公开(公告)日：2018-05-22

申请号：US15496853

申请日：2017-04-25

申请人： GAS TECHNOLOGY INSTITUTE

发明人： Shaojun Zhou ,  Howard S. Meyer

IPC分类号： B01D53/14 ,  B01D53/22 ,  B01D71/06 ,  B01D71/16 ,  B01D71/32 ,  B01D71/34 ,  B01D71/50 ,  B01D71/56 ,  B01D71/64 ,  B01D71/68 ,  C10L3/10

CPC分类号： B01D53/1443 ,  B01D53/22 ,  B01D53/226 ,  B01D53/228 ,  B01D71/06 ,  B01D71/16 ,  B01D71/32 ,  B01D71/34 ,  B01D71/50 ,  B01D71/56 ,  B01D71/64 ,  B01D71/68 ,  B01D2256/245 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/408 ,  B01D2257/504 ,  B01D2317/025 ,  C10L3/10 ,  C10L3/102 ,  C10L3/103 ,  C10L3/104 ,  C10L2290/548 ,  Y02C10/10

摘要： A multi-stage process for recovering acid gas from natural gas having high acid gas contents utilizes two or more membrane absorption contactors arranged in series. The first membrane absorption contactor uses a physical solvent to remove a high volume of acid gas transferred across a membrane, and to reduce the acid gas content in the natural gas to a lower level that can be managed using chemical solvents. The second and, if needed, subsequent membrane absorption contactors can use a chemical solvent to remove acid gas transferred across the respective membranes and reduce the acid gas content in the natural gas to very low levels, if needed, depending on product specifications.

公开(公告)号：US09808761B2

公开(公告)日：2017-11-07

申请号：US15139843

申请日：2016-04-27

申请人： Research Foundation of the City University of New York

发明人： Teresa J. Bandosz

IPC分类号： B01D53/40 ,  B01D53/86 ,  B01J20/24 ,  B01D53/02 ,  B01D53/50 ,  B01D53/52 ,  B01D53/54 ,  B01D53/56 ,  B01J20/02 ,  B01J20/04 ,  B01J20/06 ,  B01J20/08 ,  B01J20/10 ,  B01J20/20 ,  B01J20/30 ,  B01J20/34 ,  B01J31/26 ,  B01J20/22 ,  B01J21/02 ,  B01J23/00 ,  B01J23/06 ,  B01J23/72 ,  B01J23/745 ,  B01J20/28 ,  B01D53/04

CPC分类号： B01D53/8612 ,  B01D53/02 ,  B01D53/04 ,  B01D53/508 ,  B01D53/52 ,  B01D53/54 ,  B01D53/565 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/112 ,  B01D2253/308 ,  B01D2253/311 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/20792 ,  B01D2255/2092 ,  B01D2255/405 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/408 ,  B01D2259/40088 ,  B01J20/0229 ,  B01J20/0237 ,  B01J20/0244 ,  B01J20/041 ,  B01J20/06 ,  B01J20/08 ,  B01J20/103 ,  B01J20/20 ,  B01J20/22 ,  B01J20/24 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/28069 ,  B01J20/2808 ,  B01J20/3078 ,  B01J20/3416 ,  B01J20/3425 ,  B01J20/3433 ,  B01J20/3483 ,  B01J21/02 ,  B01J23/005 ,  B01J23/06 ,  B01J23/72 ,  B01J23/745 ,  B01J31/26 ,  B01J2220/42 ,  B01J2220/4887

摘要： Industrial waste derived adsorbents were obtained by pyrolysis of sewage sludge, metal sludge, waste oil sludge and tobacco waste in some combination. The materials were used as media to remove hydrogen sulfide at room temperature in the presence of moisture. The initial and exhausted adsorbents after the breakthrough tests were characterized using sorption of nitrogen, thermal analysis, XRD, ICP, and surface pH measurements. Mixing tobacco and sludges result in a strong synergy enhancing the catalytic properties of adsorbents. During pyrolysis new mineral phases are formed as a result of solid state reaction between the components of the sludges. High temperature of pyrolysis is beneficial for the adsorbents due to the enhanced activation of carbonaceous phase and chemical stabilization of inorganic phase. Samples obtained at low temperature are sensitive to water, which deactivates their catalytic centers.

公开(公告)号：US20170225116A1

公开(公告)日：2017-08-10

申请号：US15496853

申请日：2017-04-25

申请人： GAS TECHNOLOGY INSTITUTE

发明人： Shaojun ZHOU ,  Howard S. MEYER

IPC分类号： B01D53/14 ,  B01D71/06 ,  B01D71/16 ,  B01D71/32 ,  C10L3/10 ,  B01D71/50 ,  B01D71/56 ,  B01D71/64 ,  B01D71/68 ,  B01D53/22 ,  B01D71/34

CPC分类号： B01D53/1443 ,  B01D53/22 ,  B01D53/226 ,  B01D53/228 ,  B01D71/06 ,  B01D71/16 ,  B01D71/32 ,  B01D71/34 ,  B01D71/50 ,  B01D71/56 ,  B01D71/64 ,  B01D71/68 ,  B01D2256/245 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/408 ,  B01D2257/504 ,  B01D2317/025 ,  C10L3/10 ,  C10L3/102 ,  C10L3/103 ,  C10L3/104 ,  C10L2290/548 ,  Y02C10/10

摘要： A multi-stage process for recovering acid gas from natural gas having high acid gas contents utilizes two or more membrane absorption contactors arranged in series. The first membrane absorption contactor uses a physical solvent to remove a high volume of acid gas transferred across a membrane, and to reduce the acid gas content in the natural gas to a lower level that can be managed using chemical solvents. The second and, if needed, subsequent membrane absorption contactors can use a chemical solvent to remove acid gas transferred across the respective membranes and reduce the acid gas content in the natural gas to very low levels, if needed, depending on product specifications.

公开(公告)号：US09630144B2

公开(公告)日：2017-04-25

申请号：US14308184

申请日：2014-06-18

申请人： MTARRI/VARANI EMISSIONS TREATMENT, LLC

发明人： John Jenkins ,  Frederick T. Varani ,  Thomas A. Jones ,  Paul Bertram Trost ,  Aaron F. Primmer ,  Nathan A. Emsick

IPC分类号： B01D47/00 ,  B01D53/85 ,  B01D53/52 ,  B01D53/82 ,  B01D53/96 ,  B01D53/72

CPC分类号： B01D53/85 ,  B01D53/52 ,  B01D53/72 ,  B01D53/82 ,  B01D53/96 ,  B01D2251/304 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2251/606 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2253/11 ,  B01D2253/1124 ,  B01D2255/20738 ,  B01D2257/00 ,  B01D2257/304 ,  B01D2257/408 ,  B01D2257/556 ,  Y02E50/346

摘要： Implementations disclosed herein provide a dry chemical scrubber with a pH regulator that adjusts an internal pH value of the dry chemical scrubber by adding high pH elements to the contents of the dry chemical scrubber on a continuous or periodic basis.

公开(公告)号：US20160193560A1

公开(公告)日：2016-07-07

申请号：US14905531

申请日：2014-09-11

申请人： DOW GLOBAL TECHNOLOGIES LLC

发明人： Jonathan W. Leister ,  Ross E. Dugas

IPC分类号： B01D53/14

CPC分类号： B01D53/1425 ,  B01D3/00 ,  B01D3/007 ,  B01D19/0015 ,  B01D2252/2021 ,  B01D2252/2025 ,  B01D2252/2026 ,  B01D2252/20421 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20447 ,  B01D2252/20452 ,  B01D2252/20468 ,  B01D2252/20484 ,  B01D2252/20489 ,  B01D2256/245 ,  B01D2257/108 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  B01D2257/406 ,  B01D2257/408 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/702

摘要： Disclosed is an improved process for regenerating solvent used to remove contaminants from a fluid stream. Said process comprises a solvent regeneration system (10) comprising a rich/lean solvent stripper column (29), reboiler (50), condenser (36), and reflux receiver (38) wherein the improvement is the location 46 of the condensed stripper gas return from the reflux receiver.

摘要翻译： 公开了用于再生用于从流体流中除去污染物的溶剂的改进方法。 所述方法包括包含富/贫溶剂汽提塔（29），再沸器（50），冷凝器（36）和回流容器（38）的溶剂再生系统（10），其中改进是冷凝汽提塔气体的位置46 从回流接收器返回。

公开(公告)号：US20160068404A1

公开(公告)日：2016-03-10

申请号：US14741797

申请日：2013-12-12

申请人： INVISTA NORTH AMERICA S.A R.L.

发明人： John C. CATON ,  David W. RABENALDT

IPC分类号： C01C3/02 ,  B01D53/14

CPC分类号： C01C3/0295 ,  B01D53/1406 ,  B01D53/1418 ,  B01D53/1425 ,  B01D2252/103 ,  B01D2257/408 ,  C01C1/12 ,  C01C3/0212 ,  Y02P20/129 ,  Y02P20/57

摘要： A hydrogen cyanide production process that recovers ammonia and hydrogen cyanide from a crude hydrogen cyanide product comprising from 25 to 50 vol. % water. When heat is recovered from the ammonia stripper, in the form of low pressure steam, and the steam can be integrated with the refining of hydrogen cyanide.

摘要翻译： 一种氰化氢生产方法，其从包含25至50体积％的粗制氰化氢产物中回收氨和氰化氢。 ％ 水。 当从氨汽提器回收热量时，以低压蒸汽的形式，蒸汽可与氰化氢的精炼相结合。