19results about "Ammonia handling/storage" patented technology

A system (200, 200 ') for safely storing ammonia underground comprises: a storage tank (300, 300') located underground for storing liquid ammonia; and a safety system (400, 400 ') connected to the storage tank (300, 300') to control leakage from the storage tank (300, 300 ') and to allow delivery of liquid ammonia into and out of the storage tank (300, 300'), the safety system (400, 400 ') comprising: a reliquefaction system (410, 410') configured to receive and liquefy gaseous ammonia gasified from liquid ammonia in the storage tank (300, 300 '), the liquefied ammonia is conveyed to the storage tank (300, 300 '); a collection tank (420, 420 ') configured to collect liquid ammonia leaked from the safety system (400, 400') and to deliver the leaked liquid ammonia to the storage tank (300, 300 '); a scrubber (430, 430 ') configured to treat gaseous ammonia leaking from the safety system (400, 400') and to deliver the treated gas to the atmosphere or ocean through a carbon filter; a water tank (440, 440 ') connected to the scrubber (430, 430') and configured to receive contaminated water; a standby external cooling system (450, 450 ') configured to be operable to provide standby cooling to the storage tank (300, 300') and the collection tank (420, 420 '); and a liquid ammonia transfer system (460, 460 ') configured to deliver liquid ammonia into the storage tank (300, 300') and to deliver liquid ammonia out of the storage tank (300, 300 ') wherein the reliquefaction system (410, 410') is configured to provide cooling to the storage tank (300, 300 ') and the collection tank (420, 420') due to liquefaction of ammonia gas.

The system (200,200') for the safe storage of ammonia below ground level comprises a storage tank (300,300') located underground for the storage of liquid ammonia, and a safety system (400,400') connected to the storage tank (300,300') to control leakage from the storage tank (300,300') and to allow the transfer of liquid ammonia into and out of the storage tank (300,300'), the safety system (400,400') being configured to receive boiling ammonia gas from the liquid ammonia in the storage tank (300,300') and liquefy it, and to send the liquefied ammonia back to the storage tank (300,300'), and to recover any liquid ammonia that has leaked from the safety system (400,400'), and leaks The system includes a recovery tank (420, 420') configured to deliver leaked liquid ammonia to a storage tank (300, 300'), a scrubber (430, 430') configured to treat ammonia gas leaking from a safety system (400, 400') and to deliver the treated gas to the atmosphere or sea through a carbon filter, a water tank (440, 440') connected to the scrubber (430, 430') and configured to receive contaminated water, a pre-external cooling system (450, 450') configured to pre-cool the storage tank (300, 300') and the recovery tank (420, 420'), and a liquid ammonia transfer system (460, 460') configured to transfer liquid ammonia into and from the storage tank (300, 300'). The reliquefaction system (410, 410') is configured to cool the storage tank (300, 300') and the recovery tank (420, 420') as a result of the liquefaction of ammonia gas.

The invention relates to a process for producing, from a liquid feed stream (2) comprising ammonia, a gaseous ammonia fuel (3) for a fired equipment (4), said process comprising the following steps: - providing said liquid feed stream (2) to a fuel vaporizer (5) to produce said gaseous ammonia fuel (3), said gaseous ammonia fuel (3) being at a nominal pressure p0 in the fuel vaporizer (5); - directing the gaseous ammonia fuel (3) to the fired equipment (4) for performing a combustion of the gaseous ammonia fuel (3); and - when a variation in a demand in said gaseous ammonia fuel (3) occurs, maintaining the pressure of the gaseous ammonia fuel (3) in the fuel vaporizer (5) at the nominal pressure p0.

An ammonia release method and system comprising a space (1) for ammonia storage, transport or usage, a buffer tank (2) for receiving ammonia released from the space, a feed line (2A) for releasing ammonia from the space (1) to the buffer tank (2), a vent mast (3) for venting diluted ammonia to the environment; a vent line (3A) for venting ammonia from the buffer tank (2) to the vent mast (3), a fan (4) for drawing ambient air into the vent mast to dilute ammonia, and a bypass line (3B) for releasing ammonia from the space (1) directly to the vent mast (3).

A method for producing renewable ammonia is disclosed. A system for carrying out the method is also disclosed. In one embodiment, a method for producing ammonia (NH3) is provided, comprising: a. producing hydrogen (H2) using electrolysis; b. enriching nitrogen (N2) to a concentration of at least about 95%; c. combining and deoxygenating H2 and N2 to produce a feed stream; and d. synthesizing NH3 from the feed stream in a synthesis reactor at a pressure of less than about 80 bar.

An ammonia handling device includes a modified layer containing a β-phase NiAl intermetallic compound, and an ammonia contact part configured so that ammonia contacts the modified layer. The ammonia contact part may include a metal base material, and the modified layer may cover the metal base material.

The invention provides a multi-stage deep heat and mass recovery amino energy storage-power generation composite circulating system and an operation method thereof. The multi-stage deep heat and mass recovery amino energy storage-power generation composite circulating system comprises a first sub-power generation system and a second sub-power generation system, the ammonia storage / hydrogen production composite module, the buffer tank and the fuel cell are sequentially communicated to form a hydrogen supply flow path, and the output end of the ammonia storage / hydrogen production composite module is connected with a return pipeline; the evaporator, the separator, the turbine, the condenser, the low-pressure cavity, the high-pressure cavity and the flow adjusting cavity are sequentially communicated to form a waste heat backheating working medium closed circulation pipeline. And the waste gas output end of the fuel cell is sequentially communicated with the ammonia storage / hydrogen production composite module, the evaporator, the flow adjusting cavity and the high-pressure cavity to form a tail gas flow path. High-temperature exhaust gas of the fuel cell is adopted to provide energy for the ammonia storage / hydrogen production composite module, the evaporator, the flow adjusting cavity and the high-pressure cavity in sequence, green, safe and reliable supply of hydrogen is achieved, deep heat regeneration of the high-temperature exhaust gas of the fuel cell is achieved, and the waste heat utilization efficiency of the system is improved.

An ammonia boil-off gas reliquefaction system and method for a vessel are disclosed. The ammonia boil-off gas reliquefaction system includes: a compression unit for multi-stage compression of boil-off gas, the compression unit including a first compressor receiving and compressing boil-off gas generated from ammonia supplied to a storage tank of a ship, and a second compressor further compressing the boil-off gas compressed in the first compressor; a condenser that cools the boil-off gas compressed by the compression unit; and a reliquefied gas recovery line along which the ammonia cooled and condensed in the condenser is conveyed to the storage tank, in which the temperature of the boil-off gas in the compression unit is adjusted by diverting the ammonia from the reliquefied gas recovery line portion to be supplied to the compression unit.

A system (200, 200') for safely storing ammonia below ground level, comprising: a storage tank (300, 300') located underground for the storage of liquid ammonia; and a safety system (400, 400') connected to the storage tank (300, 300') to control leaks from the storage tank (300, 300') and allow transfer of liquid ammonia into and out of the storage tank (300, 300'), the safety system (400, 400') comprising: a reliquification system (410, 410') configured to receive and liquefy gaseous ammonia boiled from the liquid ammonia in the storage tank (300, 300') and deliver the liquified ammonia to the storage tank (300, 300'); a collection tank (420, 420') configured to collect leaked liquid ammonia from the safety system (400, 400') and deliver the leaked liquid ammonia to the storage tank (300, 300'); a scrubber (430, 430') configured to treat gaseous ammonia leaked from the safety system (400, 400') and deliver treated gas to the atmosphere or the sea through a carbon filter; a water tank (440, 440') connected to the scrubber (430, 430') and configured to receive contaminated water; a backup external cooling system (450, 450') configured to be operable to provide backup cooling to the storage tank (300, 300') and collection tank (420, 420'); and a liquid ammonia transfer system (460, 460') configured to transfer liquid ammonia into and out of the storage tank (300, 300'); wherein the reliquification system (410, 410') is configured to provide cooling to the storage tank (300, 300') and the collection tank (420, 420') as a result of the liquification of ammonia gas.

The present disclosure relates to an approach to ammonia storage and transportation. In one aspect, it relates to a process for the liquefaction of ammonia at ambient temperature and pressure.

A floating hull for use as a hydrogen and / or ammonia floating production storage and offloading vessel, comprising: an inner hull wall, at least two bulkheads, the at least two bulkheads disposed within the inner hull wall to form at least three separate storage spaces; a series of cross members disposed between the at least two bulkheads to provide support and stability to the at least two bulkheads; a deck supported by and disposed above the at least two bulkheads; and the at least three separate storage spaces configured to contain gases and / or liquids.

In the present invention, a porous coordination polymer in which metal ions are coordinated with organic ligands is brought into contact with an ammonia-containing liquid or ammonia-containing gas, the porous coordination polymer adsorbs ammonia, and then the ammonia-adsorbed porous coordination polymer releases ammonia, and the ammonia is recovered. The porous coordination polymer that is brought into contact with the ammonia-containing liquid preferably has a water-soluble organic solvent attached thereto. The ammonia-containing gas is preferably adjusted so as to contain 106 mass parts or more of water per 100 mass parts of ammonia.

A system and method for reliquefaction of ammonia boil-off gas for ships is disclosed. The ammonia boil-off gas reliquefaction system includes: a compression unit for multistage compression of boil-off gas, the compression unit including a first compressor receiving and compressing boil-off gas generated from ammonia in a storage tank provided to a ship, and a second compressor further compressing the boil-off gas compressed in the first compressor; a condenser cooling the boil-off gas compressed through the compression unit; and a reliquefied gas recovery line along which ammonia cooled and condensed in the condenser is delivered to the storage tank, wherein a temperature of the boil-off gas in the compression unit is adjusted by partially diverting the ammonia from the reliquefied gas recovery line to be supplied to the compression unit.

A system and method for re-liquefying ammonia vapor on a vessel is disclosed. [Solution] The ammonia evaporative gas re-liquefaction system for a ship of the present invention comprises a compression unit which compresses the evaporative gas generated from ammonia in a storage tank installed on the ship, and a second compressor which further compresses the evaporative gas compressed by the first compressor, thereby compressing the evaporative gas in multiple stages; a condenser which cools the evaporative gas compressed through the compression unit; and a re-liquefaction gas recovery line which sends the ammonia cooled and condensed by the condenser to the storage tank, and is characterized in that ammonia is branched off from the re-liquefaction gas recovery line and supplied to the compression unit, thereby adjusting the temperature of the evaporative gas in the compression unit.

An ammonia treatment device (1) is provided with an ammonia contact part (10) that includes a modified layer (12) containing a beta-phase NiAl intermetallic compound and is configured such that ammonia is in contact with the modified layer (12). The ammonia contact part (10) may include a metal base material (11), and the modified layer (12) may cover the metal base material (11).

A method and system for manufacturing fuel offshore includes an offshore ocean platform on which an ammonia manufacturing unit is mounted. The ammonia manufacturing unit may manufacture ammonia using raw materials including seawater procured from an adjacent ocean platform and electricity from an offshore wind turbine. The manufactured ammonia may subsequently be liquefied and transported to a location away from the ocean platform or transferred to a remote location via a subsea pipeline. A portion of the hydrogen produced as part of the ammonia manufacturing process may be utilized to operate a mounted combustion turbine, thereby driving a generator on the ocean platform to generate electricity.

The application discloses a pyridine derivative-based deep eutectic solvent and a preparation method and application thereof. The deep eutectic solvent is prepared from a pyridine derivative as a hydrogen bond acceptor and a polyhydric alcohol or polyhydric phenol as a hydrogen bond donor. The preparation method comprises the following steps: mixing the pyridine derivative and the hydrogen bond donor at a molar ratio of 1:0.5-6, stirring until uniform at 60-120 DEG C, and then drying under vacuum at 60-120 DEG C and cooling to room temperature to obtain the deep eutectic solvent. The pyridine derivative-based deep eutectic solvent prepared by the application has hydrogen bond interaction between alcohol hydroxyl and phenolic hydroxyl groups and ammonia molecules, which is beneficial to efficient absorption of ammonia. The ammonia can be desorbed and regenerated by simple pressure reduction and temperature rising operation. The pyridine derivative-based deep eutectic solvent has the characteristics of easy synthesis, easy regeneration, good stability, high ammonia absorption capacity and the like, and has a good application prospect in ammonia separation and storage.

An ammonia handling device (1) includes a modified layer (12) containing a β-phase NiAl intermetallic compound, and an ammonia contact part (10) configured so that ammonia contacts the modified layer (12). The ammonia contact part (10) may include a metal base material (11), and the modified layer (12) may cover the metal base material (11).

The present invention discloses a method for preparing a bifunctionalized flexible metal-organic framework material for ammonia storage, the preparation method comprising the following steps: taking aluminum nitrate, a first ligand, and a second ligand, sequentially placing them in pure water and mixing them to obtain a mixture, subjecting the mixture to a hydrothermal reaction to obtain solid I; dissolving solid I in an organic solvent, subjecting the mixture to a solvothermal reaction to obtain solid II; collecting solid II by centrifugation to obtain centrifuge I, washing centrifuge I alternately with N,N-dimethylformamide and anhydrous ethanol, filtering the centrifuge after washing, and then drying and activating the centrifuge in a vacuum drying oven to obtain the final product (OH)2@NH2-Al(BDC). The present invention introduces amino and hydroxyl functional groups through ligands to increase the ammonia adsorption sites of the material, thereby obtaining a bifunctionalized flexible metal-organic framework material for ammonia storage with a stable structure, large adsorption capacity, and easy regeneration, which can be widely used in the field of ammonia storage.