公开(公告)号：US11492271B2

公开(公告)日：2022-11-08

申请号：US17269812

申请日：2019-06-28

Applicant: Process Limited

Inventor： Robert Eden ,  Mark Moulden

IPC: C02F1/20 ,  B01D3/34 ,  B01D53/14 ,  B01D5/00 ,  B01D19/00 ,  C01C1/10 ,  C02F1/02 ,  C02F101/16 ,  C02F103/06 ,  C02F103/36

Abstract: A system and method for removing ammonia from an ammonia-containing liquid is described. The system comprises a primary heat exchanger 12 for heating the ammonia-containing liquid to operational temperature, an ammonia stripper 14 for stripping ammonia from the ammonia-containing liquid from the primary heat exchanger and discharging it as ammonia-containing gas, and an acid scrubber 16 for reacting the ammonia in the ammonia-containing gas with acid to form an ammonium salt. The acid scrubber comprises a scrubbed air outlet 32 in fluid communication with a hot air inlet 20 of the ammonia stripper, such that scrubbed air which is discharged from the acid scrubber may be recycled for use in the ammonia stripper. Also described is a system and method for removing ammonia from an ammonia-containing liquid, wherein the system comprises a cold-water scrubber for removing ammonia from the ammonia-containing gas discharged from the ammonia stripper.

公开(公告)号：US11453951B1

公开(公告)日：2022-09-27

申请号：US17340694

申请日：2021-06-07

Applicant: United Arab Emirates University

Inventor： Ameera Mohammad ,  Ali Al Marzouqi ,  Muftah El Naas

IPC: C25B15/08 ,  C25B1/27 ,  C01C1/10 ,  C01C1/02 ,  C02F9/00 ,  C25B1/50 ,  C02F1/463 ,  C02F103/34 ,  C02F1/00 ,  C02F101/16 ,  C02F1/20 ,  C02F1/461 ,  C02F1/66

Abstract: This invention describes a novel recovery method of ammonia through the electrocoagulation process, which may be applied in the industrial as well as the environmental sectors. The present invention has a significant impact not only on recovering the ammonia content from the Solvay effluent, but also for recovering the ammonia from landfill leachate and different sources of wastewater where high concentrations of ammonia can be found. This invention has economic benefits in recovering ammonia and reducing the required energy in such processes. Another impact is the environmental one, where ammonia can cause problems such as toxicity to the organisms living in the soil or water bodies, and could also decrease the concentration of the dissolved oxygen.

公开(公告)号：US20210238058A1

公开(公告)日：2021-08-05

申请号：US17269812

申请日：2019-06-28

Applicant: Process Limited

Inventor： Robert EDEN ,  Mark MOULDEN

IPC: C02F1/20 ,  B01D19/00 ,  B01D3/34 ,  B01D5/00 ,  C01C1/10 ,  C02F1/02 ,  B01D53/14

Abstract: A system and method for removing ammonia from an ammonia-containing liquid is disclosed. The system comprises a primary heat exchanger 12 for heating the ammonia-containing liquid to operational temperature, an ammonia stripper 14 for stripping ammonia from the ammonia-containing liquid from the primary heat exchanger and discharging it as ammonia-containing gas, and an acid scrubber 16 for reacting the ammonia in the ammonia-containing gas with acid to form an ammonium salt. The acid scrubber comprises a scrubbed air outlet 32 in fluid communication with a hot air inlet 20 of the ammonia stripper, such that scrubbed air which is discharged from the acid scrubber may be recycled for use in the ammonia stripper.
Also disclosed is a system and method for removing ammonia from an ammonia-containing liquid, wherein the system comprises a cold-water scrubber for removing ammonia from the ammonia-containing gas discharged from the ammonia stripper.

公开(公告)号：US10106447B2

公开(公告)日：2018-10-23

申请号：US14852836

申请日：2015-09-14

Applicant: Morton Orentlicher ,  Mark M. Simon

Inventor： Morton Orentlicher ,  Mark M. Simon

IPC: C02F9/00 ,  C01C1/26 ,  C05C3/00 ,  B01D61/02 ,  C01C1/10 ,  B01D53/58 ,  B01D53/62 ,  C02F1/44 ,  C02F1/20 ,  C02F3/28 ,  C02F1/02 ,  C02F101/16 ,  C02F103/20 ,  C02F1/68 ,  C02F11/04 ,  C02F1/52

Abstract: The present invention is a process, a method, and system for recovery and concentration of dissolved ammonium bicarbonate from a wastewater containing ammonia (NH3) using gas separation, condensation, filtration, and crystallization, each at controlled operating temperatures. The present invention includes 1) removal of ammonia from waste (sludges, semi-solids, and solids and liquids) without the use of chemicals at a temperature of at least 80 degrees Celsius, 2) mixing of the gaseous ammonia with carbon dioxide and water vapor and concentrating dissolved ammonium carbonate and ammonium bicarbonate using reverse osmosis at a temperature of between about 35 and 50 degrees Celsius, and 3) crystallizing concentrated dissolved ammonium carbonate and ammonium bicarbonate at a temperature of less than about 35 degrees Celsius to form solid ammonium bicarbonate and ammonium carbonate.

公开(公告)号：US10005021B1

公开(公告)日：2018-06-26

申请号：US15388026

申请日：2016-12-22

Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

Inventor： Sanjay Kumar Dube ,  Stephen Alan Bedell

IPC: C01C1/10 ,  C01C1/12 ,  B01D53/14 ,  B01D53/58 ,  B01D53/62 ,  B01D53/74 ,  B01D53/75

Abstract: A system for recovering ammonia from a gas stream is provided. The system includes a regenerator and a carbon dioxide wash station.

公开(公告)号：US09416038B2

公开(公告)日：2016-08-16

申请号：US13982585

申请日：2012-02-17

Applicant: Juan Carlos Josse ,  Andrew Benedek ,  Michael David Theodoulou ,  Zachary Scott

Inventor： Juan Carlos Josse ,  Andrew Benedek ,  Michael David Theodoulou ,  Zachary Scott

IPC: C02F11/00 ,  C05C3/00 ,  C02F11/04 ,  C02F1/20 ,  C02F11/12 ,  C05F5/00 ,  C05F7/00 ,  C05F17/00 ,  C01C1/10 ,  C01C1/26 ,  C02F1/66 ,  C02F101/16

CPC classification number: C05C3/00 ,  C01C1/10 ,  C01C1/26 ,  C02F1/20 ,  C02F1/66 ,  C02F11/04 ,  C02F11/12 ,  C02F11/127 ,  C02F2101/16 ,  C05F5/008 ,  C05F7/00 ,  C05F17/0054 ,  C05G3/0058 ,  Y02A40/212 ,  Y02A40/213 ,  Y02P20/145 ,  Y02W30/43 ,  Y02W30/47

Abstract: Sludge from an anaerobic digester is treated to recover one or more of fibers, or solids or liquids with a high nutrient content. The solids or liquids can be used as a fertilizer. The fibers can be used in a plant growing medium. Solids are separated from liquids in the sludge and dried. The solids may be dried to produce a flake or pellet. Ammonia in the liquids is recovered and used to produce a concentrated acidic ammonium salt solution. This solution may be mixed with the solids to produce a nitrogen enhanced solid. The fibers and solids or liquids can also be used in combination to produce an enhanced plant growing medium. A device and process for removing ammonia from a liquid can be used in the system or separately.

Abstract translation: 处理来自厌氧消化器的污泥以回收一种或多种具有高营养成分的纤维，或固体或液体。 固体或液体可以用作肥料。 纤维可用于植物生长培养基中。 将固体与污泥中的液体分离并干燥。 固体可以被干燥以产生薄片或颗粒。 回收液体中的氨并用于产生浓缩的酸性铵盐溶液。 该溶液可与固体混合以产生氮增强固体。 纤维和固体或液体也可以组合使用以产生增强的植物生长培养基。 用于从液体中除去氨的装置和方法可以在系统中使用或分开使用。

公开(公告)号：US20150284256A1

公开(公告)日：2015-10-08

申请号：US14246513

申请日：2014-04-07

Applicant: The Boeing Company

Inventor： Jason M. Siegel ,  Wen-teh Chen ,  Steven J. Adam

IPC: C01C1/10 ,  B01D3/00

CPC classification number: C01C1/10 ,  C01C1/022 ,  C01C1/024

Abstract: A system for ammonia distillation may include a condenser to condense ammonia vapor into liquid anhydrous ammonia, a flush tank to receive a flushed portion of the liquid anhydrous ammonia, a collection tank to receive a collected portion of the liquid anhydrous ammonia, and a corrosion inhibitor dispenser to transfer a corrosion inhibitor to the collected portion of the liquid anhydrous ammonia to form corrosion-inhibiting liquid anhydrous ammonia.

Abstract translation: 用于氨蒸馏的系统可以包括用于将氨蒸汽冷凝成液体无水氨的冷凝器，用于接收液体无水氨的冲洗部分的冲洗槽，用于接收液体无水氨的收集部分的收集罐，以及腐蚀抑制剂 分配器将腐蚀抑制剂转移到液体无水氨的收集部分以形成腐蚀抑制液体无水氨。

公开(公告)号：US07785556B2

公开(公告)日：2010-08-31

申请号：US11925008

申请日：2007-10-26

Applicant: Kazuhiko Amakawa ,  Fumio Tanaka ,  Takuji Shitara

Inventor： Kazuhiko Amakawa ,  Fumio Tanaka ,  Takuji Shitara

IPC: C01C1/10 ,  C01C1/12 ,  C07D333/38

CPC classification number: C01C1/10 ,  B01D3/146 ,  C07C253/28 ,  C07C255/51

Abstract: A method of recovering ammonia by the distillation of an aqueous solution containing ammonia, carbon dioxide and hydrogen cyanide. The distillation is conducted using a distillation apparatus having at least its portion which comes into contact with the aqueous solution made of an alloy 1 or alloy 2. The alloy 1 contains 3% by weight or more of molybdenum, 15% by weight or more of nickel and 15% by weight or more of chromium. The alloy 2 contains 1% by weight or more of molybdenum, 9% by weight or less of nickel and 20% by weight or more of chromium. The use of the alloy 1 or alloy 2 prevents the corrosion of the distillation apparatus and enables the stable recovery of ammonia for a long period of time.

Abstract translation: 通过蒸馏含有氨，二氧化碳和氰化氢的水溶液来回收氨的方法。 使用至少具有与由合金1或合金2制成的水溶液接触的部分的蒸馏装置进行蒸馏。合金1含有3重量％以上的钼，15重量％以上的钼 镍和15重量％以上的铬。 合金2含有1重量％以上的钼，9重量％以下的镍和20重量％以上的铬。 使用合金1或合金2可以防止蒸馏装置的腐蚀，并能长期稳定地回收氨。

公开(公告)号：US20080102014A1

公开(公告)日：2008-05-01

申请号：US11925008

申请日：2007-10-26

Applicant: Kazuhiko Amakawa ,  Fumio Tanaka ,  Takuji Shitara

Inventor： Kazuhiko Amakawa ,  Fumio Tanaka ,  Takuji Shitara

IPC: C01C1/10

CPC classification number: C01C1/10 ,  B01D3/146 ,  C07C253/28 ,  C07C255/51

Abstract: A method of recovering ammonia by the distillation of an aqueous solution containing ammonia, carbon dioxide and hydrogen cyanide. The distillation is conducted using a distillation apparatus having at least its portion which comes into contact with the aqueous solution made of an alloy 1 or alloy 2. The alloy 1 contains 3% by weight or more of molybdenum, 15% by weight or more of nickel and 15% by weight or more of chromium. The alloy 2 contains 1% by weight or more of molybdenum, 9% by weight or less of nickel and 20% by weight or more of chromium. The use of the alloy 1 or alloy 2 prevents the corrosion of the distillation apparatus and enables the stable recovery of ammonia for a long period of time.

Abstract translation: 通过蒸馏含有氨，二氧化碳和氰化氢的水溶液来回收氨的方法。 使用至少具有与由合金1或合金2制成的水溶液接触的部分的蒸馏装置进行蒸馏。合金1含有3重量％以上的钼，15重量％以上的钼 镍和15重量％以上的铬。 合金2含有1重量％以上的钼，9重量％以下的镍和20重量％以上的铬。 使用合金1或合金2可以防止蒸馏装置的腐蚀，并能长期稳定地回收氨。

公开(公告)号：US07160430B2

公开(公告)日：2007-01-09

申请号：US10662818

申请日：2003-09-16

Applicant: Gene Sidney Shelp ,  Leonard Paul Seed

Inventor： Gene Sidney Shelp ,  Leonard Paul Seed

IPC: B01J39/08 ,  C02F1/42 ,  C02F1/20 ,  C01C1/10 ,  C25B9/00 ,  C25B1/00

CPC classification number: C02F1/20 ,  B01J49/06 ,  B01J49/70 ,  C02F1/4672 ,  C02F1/4674 ,  C02F1/66 ,  C02F9/00 ,  C02F2001/425 ,  C02F2001/46128 ,  C02F2001/46142 ,  C02F2101/16 ,  C02F2201/46145 ,  C02F2209/005 ,  C02F2209/06 ,  C02F2303/16

Abstract: In a sewage treatment plant, dissolved ammonium is extracted from the waste-water stream, and is transferred to a body of secondary water. The secondary water is passed through an electrolysis station, where the ammonium is transformed to nitrogen gas. The capture and transfer can be done by ion-exchange, the electrolysis then being done on the regenerant water. Or the capture and transfer can be done by first transforming the dissolved ammonium to ammonia gas by raising the pH of the waste-water, then passing the ammonia gas through acidic secondary-water, in which the ammonia dissolves, the electrolysis then being done on the acid-water. The electrolysed, ammonium-diminished, secondary-water can be re-used in further capture/transfer episodes. The secondary-water does not mix with the waste-water stream.

Abstract translation: 在污水处理厂中，从废水流中提取溶解的铵，并将其转移到二次水体中。 二次水通过电解站，其中铵转化为氮气。 捕获和转移可以通过离子交换进行，然后在再生水上进行电解。 或者捕获和转移可以通过首先通过提高废水的pH来将溶解的铵转化成氨气，然后将氨气通过氨溶解的酸性二次水进行，然后进行电解 酸水。 电解，铵减少的二次水可以再次用于进一步的捕获/转移发生。 二次水不与废水流混合。