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1. WO2019035718 - ZERO EMISSION PROPULSION SYSTEMS AND GENERATOR SETS USING AMMONIA AS FUEL

Publication Number WO/2019/035718
Publication Date 21.02.2019
International Application No. PCT/NO2018/050204
International Filing Date 08.08.2018
IPC
F02D 19/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
CPC
F02B 19/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19Engines characterised by precombustion chambers
10with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02D 19/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
F02D 19/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/0644
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
0639characterised by the type of fuels
0642at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
0644the gaseous fuel being hydrogen, ammonia or carbon monoxide
F02D 19/0671
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
0663Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
0668Treating or cleaning means; Fuel filters
0671Means to generate or modify a fuel, e.g. reformers, electrolytic cells or membranes
F02D 29/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
29Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
06peculiar to engines driving electric generators
Applicants
  • HEGGEN, Lars Harald [NO]/[NO]
Inventors
  • HEGGEN, Lars Harald
Priority Data
2017135414.08.2017NO
Publication Language English (EN)
Filing Language Norvegian (NO)
Designated States
Title
(EN) ZERO EMISSION PROPULSION SYSTEMS AND GENERATOR SETS USING AMMONIA AS FUEL
(FR) SYSTÈMES DE PROPULSION À ÉMISSION NULLE ET ENSEMBLES GÉNÉRATEURS UTILISANT DE L'AMMONIAC COMME COMBUSTIBLE
Abstract
(EN)
The present invention relates to a zero emission propulsion system and generator sets using ammonia (NH3) as fuel for engines and power plants such as steam boilers (5) for steam turbines (7), piston engines (9), fuel cells (10) or Stirling engines (11). Due to the poor flammability of ammonia (NH3), a hydrogen reactor (4) can split ammonia (NH3) into hydrogen (H2) and nitrogen (N2). The hydrogen (H2) can be placed in a hydrogen tank (8) for intermediate storage and the nitrogen can be stored in a nitrogen tank (6). The hydrogen (H2) could be mixed with ammonia (NH3) to improve flammability and thus facilitate the ignition of an air/ammonia (NH3) mixture in engines or power plants (5, 9, 11). Alternatively, hydrogen (¾) may be supplied in a separate fuel system (5-1, 9-5, 11-8) as a pilot fuel for pilot ignition of an air/ammonia (NH3) mixture. The hydrogen (H2) can also be used in AIP systems along with oxygen (O2) from an oxygen tank (22). The hydrogen (H2) will then be used for fuel cells (10), for combustion in a steam turbine inlet/high pressure side (7-1), or in a Stirling engine (11). In addition to hydrogen (H2), other bio and fossil fuels from the fuel tank (12) can be used as pilot fuel for pilot ignition of an air/ammonia (NH3) mixture. The advantage of using existing bio or fossil fuels for pilot ignition is that engines or power plants (5, 9, 11) will have a pilot fuel system with sufficient capacity to maintain normal operations if ammonia (NH3) is not available. Alternatively, that engines or power plants (5, 9, 11) have an additional fuel system for existing bio or fossil fuels in order to maintain normal operations if ammonia (NH3) is not available. The nitrogen (N2) in the nitrogen tank (6) can be used as a gas in fire extinguishing systems or for submarine ballast tank blows.
(FR)
La présente invention concerne un système de propulsion à émission nulle et des ensembles générateurs utilisant de l'ammoniac (NH3) en tant que combustible pour des moteurs et des centrales électriques telles que des chaudières à vapeur (5) pour turbines à vapeur (7), des moteurs à piston (9), des piles à combustible (10) ou des moteurs Stirling (11). En raison de l'inflammabilité médiocre de l'ammoniac (NH3), un réacteur à hydrogène (4) peut diviser l'ammoniac (NH3) en hydrogène (H2) et en azote (N2). L'hydrogène (H2) peut être placé dans un réservoir d'hydrogène (8) pour le stockage intermédiaire et l'azote peut être stocké dans un réservoir d'azote (6). L'hydrogène (H2) peut être mélangé avec de l'ammoniac (NH3) pour améliorer l'inflammabilité et faciliter ainsi l'allumage d'un mélange air/ammoniac (NH3) dans des moteurs ou des centrales électriques (5, 9, 11). En variante, de l'hydrogène (¾) peut être fourni dans un système de combustible séparé (51, 9-5, 11-8) en tant que combustible pilote pour l'allumage pilote d'un mélange air/ammoniac (NH3). L'hydrogène (H2) peut également être utilisé dans des systèmes AIP avec de l'oxygène (O2) provenant d'un réservoir d'oxygène (22). L'hydrogène (H2) est ensuite utilisé pour des piles à combustible (10), pour une combustion dans un côté admission/haute pression de turbine à vapeur (7-1) ou dans un moteur Stirling (11). En plus de l'hydrogène (H2), d'autres combustibles biologiques et fossiles provenant du réservoir de combustible (12) peuvent être utilisés comme combustible pilote pour l'allumage pilote d'un mélange air/ammoniac (NH3). L'avantage d'utiliser des combustibles biologiques ou fossiles existants pour l'allumage pilote est que des moteurs ou des centrales électriques (5, 9, 11) ont un système de combustible pilote ayant une capacité suffisante pour maintenir des opérations normales si l'ammoniac (NH3) n'est pas disponible. En variante, les moteurs ou centrales électriques (5, 9, 11) ont un système de combustible supplémentaire pour des combustibles biologiques ou fossiles existants afin de maintenir des opérations normales si l'ammoniac (NH3) n'est pas disponible. L'azote (N2) dans le réservoir d'azote (6) peut être utilisé comme gaz dans des systèmes d'extinction d'incendie ou pour des explosions de réservoir de ballast sous-marin.
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