245 results about "Marine fuel" patented technology

Disclosed is a marine fuel cell-based integrated heat, electricity, and cooling supply system comprising a power supply system and a waste heat recovery system; the power supply system comprises wind turbine generator sets, solar generator sets, and a fuel cell power module; the waste heat recovery system encompasses a turbine power generation module and a lithium bromide refrigeration module; the fuel cell power module is connected to both the turbine power generation module and the lithium bromide refrigeration module; the turbine power generation module is used to generate electricity using waste heat. This approach fully exploits the waste heat from the exhaust gas generated by the fuel cell power module, resulting in a high overall energy utilization rate. The self-consumption electricity and pure hydrogen fuel for the integrated energy supply system can be obtained from solar and wind energy, ensuring low carbon emissions for the entire system.

The utility model provides an LNG fuel cabin supply system for a ship. The LNG fuel cabin supply system comprises a filling unit, a gasification unit, a fuel unit, a first collecting pipe, a first control valve, a second collecting pipe, a second control valve, a third collecting pipe, a third control valve, a fourth collecting pipe and a fourth control valve. The fuel unit comprises a fuel tank, a first liquid phase opening of the fuel tank is communicated with a liquid phase filling opening of the filling unit through a first collecting pipe, liquid of the filling unit can flow to the first liquid phase opening, and the first control valve is arranged on the first collecting pipe; a gas phase opening of the fuel tank is communicated with a gas phase filling opening of the filling unit through a second collecting pipe, and a second control valve is arranged on the second collecting pipe; the first liquid phase opening is communicated with an inlet of the gasification unit through a third collecting pipe, liquid in the fuel tank can flow to the gasification unit, and the third control valve is arranged on the third collecting pipe; the gas phase opening is communicated with the inlet of the gasification unit through a fourth collecting pipe, and the fourth control valve is arranged on the fourth collecting pipe.

The invention discloses a marine fuel leakage assessment method, device and equipment, a medium and a product. The method comprises the following steps: acquiring leakage scene information related to marine fuel leakage, wherein the leakage scene information at least comprises personnel position information, ship environment information, leakage state information and fuel type information; based on the leakage scene information, determining first distribution data of leakage concentration and leakage related positions by calling a preset simulation model realized based on computational fluid dynamics or calling a historical leakage simulation result in a database, and second distribution data of leakage concentration and leakage time at a position indicated by the personnel position information; and according to the first distribution data and the second distribution data, visually displaying a leakage concentration contour map marked with the personnel position information, a leakage concentration time change map and personnel escape suggestion information. According to the scheme, the actual threat degree of leakage to personnel on the ship can be reflected, and suggestions for dealing with leakage are provided.

The invention provides a marine fuel leakage control method and system, and belongs to the technical field of ship engineering.The method comprises the steps that multi-physics field data are collected, and the multi-physics field data comprise marine fuel concentration data, temperature data and pressure data; performing feature extraction on the marine fuel concentration data, the temperature data and the pressure data to obtain marine fuel leakage feature parameters; the marine fuel leakage characteristic parameters are input into a marine fuel leakage early warning model for prediction, and the marine fuel leakage probability and the marine fuel leakage position are obtained; and generating a marine fuel leakage control instruction based on the marine fuel leakage probability and / or the marine fuel leakage position. According to the method, the leakage probability and position of the marine fuel are accurately predicted, and the safety of ships and personnel is guaranteed.

The invention relates to the technical field of marine fuel oil additives, and particularly provides a marine fuel oil purification synergist and a preparation method thereof. The marine fuel oil purification synergist comprises the following components in percentage by mass: 8%-12% of a sulfur capturing agent, 15%-20% of a core-shell dispersing agent, 5%-8% of a lubricating agent, 0.5%-1% of an antioxidant, 1%-2% of a pour point depressant and the balance of a solvent. The marine fuel oil purification synergist has the advantages of high flash point, sulfur inhibition, combustion enhancement and dispersion stability. The multi-component synergistic system not only greatly improves the combustion efficiency of the marine fuel oil, but also effectively inhibits the emission of harmful substances, obviously reduces the carbon deposition and wear of an engine, and keeps the cleanliness of a fuel oil system. In practical application, the synergist shows excellent environment-friendly benefits and economic benefits, and a green fuel solution which can meet increasingly strict requirements of environment-friendly laws and regulations and can reduce the operation cost is provided for the ship industry.

The invention belongs to the technical field of solid waste resource utilization, and particularly relates to a production process for producing low-sulfur marine fuel oil through waste rubber tire hydro-liquefaction, which comprises the following steps: (1) mixing oil slurry, waste tire rubber powder and a catalyst to obtain a mixture, enabling the mixture to pass through a swelling preheater, and enabling the mixture and hydrogen to enter a slurry bed reactor for hydro-liquefaction, the liquefied intermediate product passes through a high-pressure separator, hydrogen obtained through separation enters a fixed bed hydrofining device, and obtained liquid enters a rectifying tower through a pressure reducing valve; (2) feeding a liquid product at the bottom of the rectifying tower and hydrogen into a fixed bed hydrofining device; and (3) carrying out gas-liquid separation on the fixed bed hydrofining product, wherein the liquid obtained by the gas-liquid separation is the low-sulfur marine fuel oil. According to the invention, waste tire rubber powder and slurry oil are used as raw materials, the liquefaction of waste rubber tires is realized in high-pressure hydrogen and high-temperature environments, and a fixed bed hydrofining device is combined to further reduce the content of sulfur atoms so as to produce the low-sulfur fuel oil for ships.

The invention discloses a marine LNG solid oxide fuel cell energy gradient utilization zero-carbon emission system and an operation method thereof. According to the technical scheme, the energy utilization rate can be effectively increased, gradient utilization of cold-heat-electricity composite energy can be achieved, and the technical advantages of pure electric power, low noise, no pollution, zero carbon emission and high energy efficiency of a ship system are reflected. The marine fuel cell zero carbon emission system comprises a solid oxide fuel cell-HCCI internal combustion engine module, an exhaust gas carbon capture module, an ORC cycle module, an air supply module, an external reforming module and an energy distribution module. The waste gas carbon capture module is used for capturing waste gas generated by the system and is used for being linked with the ORC circulation module. And the ORC cycle module is linked with the solid oxide fuel cell-HCCI internal combustion engine module. The air supply module is used for exchanging heat with the HCCI internal combustion engine through external air. The external reforming module is used for providing heat and water vapor to the reformer.

A process for reducing the environmental contaminants in a ISO 8217 compliant Feedstock Heavy Marine Fuel Oil, the process involving: mixing a quantity of the Feedstock Heavy Marine Fuel Oil with a quantity of Activating Gas mixture to give a feedstock mixture; contacting the feedstock mixture with one or more catalysts to form a Process Mixture from the feedstock mixture; separating the Product Heavy Marine Fuel Oil liquid components of the Process Mixture from the gaseous components and by-product hydrocarbon components of the Process Mixture and, discharging the Product Heavy Marine Fuel Oil. The Product Heavy Marine Fuel Oil is compliant with ISO 8217 for residual marine fuel oils and has a sulfur level has a maximum sulfur content (ISO 14596 or ISO 8754) between the range of 0.05% wt. to 0.5% wt. The Product Heavy Marine Fuel Oil can be used as or as a blending stock for an ISO 8217 compliant, IMO MARPOL Annex VI (revised) compliant low sulfur or ultralow sulfur heavy marine fuel oil. A device for conducting the process is also disclosed.

The invention discloses a combined fixing device of a marine LNG fuel C-shaped storage tank, belongs to the technical field of ship manufacturing, and solves the problem that an existing marine LNG fuel C-shaped storage tank is easy to loosen. The anti-explosion ship comprises a combined storage tank, an anti-explosion box and a plurality of ship body bases, the anti-explosion box is arranged at one end of the combined storage tank in a sleeving mode, and the anti-explosion box and the combined storage tank are fixed in a welded and sealed mode; a plurality of supporting legs are arranged at the bottom of the combined storage tank and are in lap joint with a plurality of ship body bases in a one-to-one correspondence mode, and each supporting leg is fixedly connected with the corresponding ship body base through a bolt and nut assembly. A glass fiber reinforced plastic layer and an epoxy resin layer are sequentially arranged between each supporting leg and the ship body base from top to bottom. According to the combined fixing device, the mounting stability of the C-shaped LNG fuel storage tank for the ship can be improved. The invention further discloses a combined fixing method of the marine LNG fuel C-shaped storage tank. According to the method, rapid, accurate and stable installation can be achieved.

A marine fuel or fuel blending composition that includes a renewable component that can be blended into heavy residual fuel oil or marine gasoil to meet statutory limits for sulfur. The renewable component may comprise biodiesel distillation tower bottoms and / or renewable diesel comprising at least 70% n-paraffins. The marine fuel composition may also include a biodiesel. Alternatively, the renewable component may comprise unrefined biodiesel, wherein the unrefined biodiesel has been separated to remove glycerol but has not been subject to further upgrading or purification. The marine fuel composition may also exhibit increased solvency.

The utility model relates to a marine fuel cell system with both power generation and water generation functions and a ship, the system comprises a hydrogen energy fuel cell subsystem, a ship power device, a water storage device, a purification device, a dosing tank, a disinfection device and two water pipelines, electricity and water generated by the hydrogen energy fuel cell subsystem are utilized, and the water pipelines are used for water supply. Electric energy is supplied to a power system of the boat, and water is treated by the purification device, the dosing tank and the disinfection device and is distributed to different water pipelines so as to meet the water quality requirements of different purposes on the boat; by integrating the power generation function and the water generation function, a traditional water generator and a diesel generator are replaced, the operation and maintenance cost is reduced, meanwhile, the energy utilization efficiency is improved, dependence on traditional energy and environmental pollution are reduced, the self-sufficiency of the boat is enhanced, and economical efficiency and environmental protection performance are improved.

The invention discloses a marine fuel cell system attenuation model considering the influence of a salt mist environment, and a power control method and a service life prediction method thereof, and the model comprises the following three parts: a first part, an attenuation model considering the influence of the salt mist environment on the performance of a marine hydrogen fuel cell during use; the second part is a power control method based on the attenuation model; and the third part is a marine fuel cell system life prediction method based on historical operation data and the attenuation model. According to the invention, the attenuation model of the marine fuel cell system including the influence of the salt mist environment is established for the first time, and the power control method of the marine fuel cell system is provided based on the attenuation model, so that the power of the fuel cell system is accurately controlled; in addition, a life prediction method of the marine fuel cell system is provided based on the attenuation model and historical operation data, so that the life and residual life prediction of the fuel cell system becomes simple, convenient and effective.

A process dissolves or disperses asphaltenes from marine fuels by using at least one quaternary ammonium compound. A weight ratio of saturates to asphaltenes in the marine fuel is at least 4.0. A marine fuel is produced that includes saturates, aromatics, and asphaltenes in addition to at least one quaternary ammonium compound. Another process reduces or prevents fouling caused by asphaltenes in a marine fuel.

This invention discloses an electric heat tracing laying device and its usage method for marine fuel oil pipelines, belonging to the field of electric heat tracing technology. The electric heat tracing laying device for marine fuel oil pipelines includes a traveling frame, and further includes: a traveling assembly mounted on the traveling frame for driving the traveling frame to move axially along the pipeline; the bottom of the traveling frame has an opening for the pipeline to enter; a rotating seat rotatably mounted on the traveling frame, on which an electric heating tape shell is mounted, and the electric heating tape shell releases the electric heat tracing tape outward through a discharge port; and a driving unit mounted on the traveling frame and connected to the traveling assembly. This invention replaces manual labor with mechanical automation, realizing the entire process of spiral winding of the electric heating tape, laying of the aluminum foil tape heat-conducting layer, and segmented fixing of the pressure-sensitive tape, solving the problems of low efficiency and insecure fixing in traditional methods, and significantly improving the safety and maintenance efficiency of marine fuel oil pipelines in low-temperature environments.

The invention relates to a ship fuel double-wall pipe isolation system, and relates to the technical field of isolation systems, the ship fuel double-wall pipe isolation system comprises a transportation main pipe, one side of the transportation main pipe is connected with a detection pipe, and the two ends of the detection pipe are correspondingly communicated with the transportation main pipe; a control valve body is arranged at the position, located between the two ends of the detection pipe, of the conveying main pipe, a detection assembly for detecting the interior of the detection pipe is arranged on the detection pipe, and a pipeline sealing assembly is arranged on the conveying main pipe. The system has the effects of monitoring the fuel in real time and finding leakage in time in the fuel transportation process.

Compositions are provided that include at least a portion of an isoparaffinic blend component, an iso-olefinic blend component, or a combination thereof, along with a method for making such a blend component. The highly isoparaffinic and / or iso-olefinic nature of the blend component can allow a blend component to be used in combination with both conventional / mineral fractions as well as non-traditional feeds to form fuel fractions and / or fuel blending component fractions. Examples of fuels that can be formed by making a blend that includes an isoparaffinic and / or iso-olefinic blend component include diesel fuels, marine gas oils, and various types of marine fuel oils, such as very low sulfur fuel oils.

A system and a method for producing a marine fuel are provided. An exemplary method includes processing a crude oil stream to remove at least a portion of metal contaminants to form a demetallized oil, processing the demetallized oil to remove at least a portion of sulfur contaminants to form a desulfurized oil, and stabilizing the desulfurized oil by removing light hydrocarbons to form the marine fuel.

The invention discloses a method for producing marine fuel oil. The method comprises the following steps: a residual oil raw material and hydrogen sequentially enter a first hydrotreating reactor to an (N-1)-th hydrotreating reactor for reaction, an obtained product, solid-removed oil slurry and optional catalytic diesel oil enter an Nth hydrotreating reactor to be in contact with a hydrogenation catalyst for reaction, and hydrogenated diesel oil and hydrogenated heavy oil are obtained, wherein a portion of the hydrogenated diesel oil is used as a first hydrotreating reactor feed; one part of the hydrogenated heavy oil enters a catalytic cracking unit for reaction to obtain catalytic diesel oil and catalytic slurry oil; and blending the obtained hydrogenated heavy oil with optional solid-removed oil slurry, optional catalytic diesel oil and optional hydrogenated diesel oil to prepare the marine fuel oil. According to the method disclosed by the invention, high-quality ship fuel which is low in cost and can meet indexes can be produced, and the problems that the overall utilization efficiency of a catalyst is low and the operation period of a device is restricted due to the fact that solid-removed oil slurry, catalytic diesel oil and the like are conventionally mixed at the inlet of the first reactor can be solved.

The utility model relates to a misfire diagnosis system for a marine gas engine, and relates to the technical field of monitoring of marine gas engines, the misfire diagnosis system comprises an engine exhaust header pressure sensor and an engine electronic control unit, the engine exhaust header pressure sensor is arranged on an exhaust pipe of the engine and is used for collecting exhaust pressure waveform data in real time, and the engine electronic control unit is used for monitoring the exhaust pressure waveform data; the engine electronic control unit receives pressure waveform data from the engine exhaust manifold pressure sensor. According to the misfire detection system for the marine fuel engine, the exhaust header pressure wave signal is selected as a signal source, engine misfire monitoring and diagnosis can be carried out, and the requirement for stable operation of the marine engine is met.

This invention discloses a hydrodesulfurization catalyst and its preparation method and application. The steps are as follows: (1) an organic polymer is modified with acid and then mixed with boehmite powder to obtain a first mixture; (2) an aqueous solution of amorphous silica-alumina and a heated organic polymer is mixed and spheroidized to obtain a first precursor; (3) a second precursor is prepared; (4) a second mixture is prepared; (5) a third precursor is prepared; (6) a support is prepared, and after introducing a hydrogenation active metal component, it is dried and calcined to obtain the hydrodesulfurization catalyst. The prepared catalyst has a non-uniform pore distribution structure, which not only gives it high impurity removal capacity, containment capacity and asphaltenes conversion capacity, but also reduces the sediment content in the generated oil. It is particularly suitable for the hydrotreating process of directly producing low-sulfur marine fuel oil from fluidized bed heavy oil.

A process dissolves or disperses asphaltenes from marine fuels by using at least one quaternary ammonium compound. A weight ratio of aromatics to asphaltenes in the marine fuel is not more than 7.0. A marine fuel is produced that includes saturates, aromatics, and asphaltenes in addition to at least one quaternary ammonium compound. Another process reduces or prevents fouling caused by asphaltenes in a marine fuel.

This utility model relates to a special fixture for machining angle injector heads for marine fuel systems. The fixture body has a beveled positioning surface with an eccentric hole perpendicular to the bottom surface. The inner diameter of the eccentric hole precisely matches the outer diameter of the non-threaded end of the angle injector head. The bevel angle of the fixture body matches the tilt angle of the angle injector head. The beveled surface of the fixture body has at least two positioning pin holes and threaded holes for positioning and connecting the angle injector head. The positioning pins are inserted between the angle injector head and the fixture body, and the positioning hexagonal bolts pass through the mounting holes of the angle injector head and are tightly screwed into the threaded holes of the fixture body. Compared with the prior art, this utility model has a simple structure, is easy to install, has accurate positioning, high reliability, can achieve stable machining, and can be extended to the angle machining of various similar injector heads.

The utility model relates to the technical field of marine fuel cells, in particular to a marine fuel cell mounting rack with a damping buffer, which comprises a base, a support frame, a connecting plate, a limiting plate, an abutting plate and an elastic coaming mechanism, supporting frames are arranged at the four corners of the upper portion of the base, and the connecting plates are arranged at the tops of the supporting frames and connected with the adjacent supporting frames. The limiting plate is transversely arranged above the connecting plates on the two sides, and the abutting plate is arranged below the limiting plate and abuts against the fuel cell; a damping buffer is arranged between the abutting plate and the limiting plate. A damping seat is arranged at the bottom of the base, a damping buffer is arranged in the damping seat, and a supporting bottom plate is connected to the top of the damping buffer and used for supporting the bottom of the fuel cell; and the elastic coaming mechanism is arranged on the outer peripheral wall of the fuel cell for supporting and buffering. According to the utility model, the overall space utilization rate of the mounting rack can be improved, the fuel cell is subjected to all-directional damping protection, the service life of the fuel cell is prolonged, and the economical efficiency of a ship is improved.

The invention relates to the technical field of marine fuel oil, in particular to a method for preparing marine fuel oil from high-viscosity, high-acid-value and high-ash asphalt, which comprises the following steps: firstly, carrying out thermal cracking reaction on the high-viscosity, high-acid-value and high-ash asphalt serving as a raw material by adopting a thermal cracking process to obtain thermal cracked asphalt, and secondly, carrying out blending by adopting a blending process to obtain the marine fuel oil. The preparation method comprises the following steps: uniformly mixing a required amount of thermal cracking asphalt with a light component to obtain blended asphalt, and finally, uniformly mixing the required amount of thermal cracking asphalt with the light component by adopting a blending process to obtain the blended asphalt. According to the preparation method for preparing the residue type marine fuel oil from the high-viscosity high-acid-value high-ash-content asphalt, the prepared marine fuel oil not only improves the proportion of the cracked asphalt in the marine fuel oil, but also improves the economical efficiency of the marine fuel oil on the basis of meeting the product technical requirements of the'marine fuel oil '(GB17411-2015).

The application provides a method for blending and producing RMG180 marine fuel oil and the produced RMG180 marine fuel oil, and relates to the technical field of production of RMG180 marine fuel oil. The application solves the problem of blending high-viscosity heavy oil slurry into low-sulfur marine fuel by removing solid matters after mixing high-viscosity heavy catalytic oil slurry and catalytic diesel oil, realizes the hierarchical utilization of VRDS atmospheric residue oil, reduces the production cost of marine fuel, and improves the quality of catalytic cracking raw materials.

The present application relates to a kind of low sulfur high performance fuel oil production device, it relates to fuel oil production technical field.Low sulfur modified residual oil, hydrogenation low sulfur raffinate are used as main raw material, auxiliary agent A, auxiliary agent B prepared by special oil device are matched, reaction conditions are accurately controlled through DCS system, low sulfur high performance marine fuel oil is prepared in low temperature mild environment;Device integrates vacuum deep pull and viscosity reduction cracking combined process, light fraction can be deep-processed into three kinds of base oil, etc.Additional value products, heavy fraction is reduced in viscosity by viscosity reduction cracking, and low-temperature fluidity is improved;Auxiliary agent B is prepared by dithiophosphoric acid, molybdenum trioxide, epoxy succinic acid polymer, 2,6-naphthalene dicarboxylic acid, anhydrous toluene, phosphorous acid;Fuel oil prepared by the present application, sulfur content is lower, environmental protection is better, low-temperature fluidity is improved, and combustion efficiency is better.

The invention discloses marine fuel pipeline welding equipment, and relates to the technical field of fuel pipeline welding, the marine fuel pipeline welding equipment comprises a pipeline fixing mechanism and a welding mechanism, the welding mechanism is fixedly mounted on the pipeline fixing mechanism, the pipeline fixing mechanism comprises a device base, and a center sliding seat is slidably mounted on the device base; the center of the center sliding seat is fixedly provided with an outer connecting pipe, the device base is slidably provided with a two-end sliding seat, the two-end sliding seat is rotatably provided with a three-jaw chuck, the three-jaw chuck is slidably provided with a chuck block, the center of the chuck block is fixedly clamped and provided with a fuel pipe, and the fuel pipe and the outer connecting pipe are coaxial. The mode that the outer connecting pipe is additionally welded between the two fuel pipes is adopted, when the temperature of the welded fuel pipes changes, the outer connecting pipe slightly extrudes the fuel pipes to guarantee the welding seam stability of the outer connecting pipe and the fuel pipes, and the pipeline fixing mechanism freely moves to guarantee welding work.

The present invention relates to the field of marine fuel oil, and discloses a marine fuel oil and a preparation method thereof. The marine fuel oil comprises 10 - 50 wt% of base oil, 11 - 53 wt% of low-sulfur atmospheric and vacuum residue, 9 - 30 wt% of aromatic hydrocarbon component and 10 - 50 wt% of low-sulfur distillate; the base oil is selected from the atmospheric tower bottom oil of the ebullated bed residue hydrotreating process and / or the middle section heavy wax oil of the vacuum tower of the ebullated bed residue hydrotreating process; the aromatic hydrocarbon component is selected from at least one of catalytic slurry oil with an end boiling point ≤ 480 °C, catalytic cycle oil, and catalytic diesel; the sulfur content of the low-sulfur distillate is ≤ 0.5 wt%, and it is selected from at least one of residue plus wax oil, straight-run wax oil, V hydrorefined wax oil, and hydro-upgrading heavy cracking tar. The present invention can turn the atmospheric tower bottom oil of the ebullated bed residue hydrotreating process and the middle section heavy wax oil of the vacuum tower of the ebullated bed residue hydrotreating process into valuable resources, and obtain a high-quality low-sulfur marine fuel oil that can meet the requirements of the compatibility index, sulfur content index, viscosity index and other full performance indexes of low-sulfur marine fuel oil, and has good application prospects.

The invention relates to a method for producing aviation kerosene by hydrogenation of Fischer-Tropsch synthetic oil, which comprises the following steps: carrying out hydrofining reaction by using the Fischer-Tropsch synthetic oil as raw material oil, fractionating the obtained hydrofining product into different components, and feeding into a hydrocracking reactor for deep cracking. Different components can be subjected to cracking reaction on different bed layers, excessive cracking of light fractions is effectively avoided, the total yield of the aviation fuel is greatly improved, the quality of the aviation fuel product is improved, and meanwhile, the energy consumption is reduced, and the treatment capacity and the production economy are improved.

The present application relates to the technical field of marine fuel filling, and particularly relates to a marine liquid ammonia fuel filling system, comprising the following steps: step S1, collecting data; step S2, calculating the real-time refrigeration power of the ship fuel tank in the filling process; and controlling the working state of the refrigeration system inside the ship fuel tank; step S3, controlling the filling speed through the difference between the maximum allowable refrigeration power of the ship fuel tank and the real-time refrigeration power. Through the above technical scheme, there is heat loss in the filling process, and the lost heat is much greater than the heat loss speed of the ship fuel tank in the closed state, which will cause more parts of the injected liquid ammonia to be gasified, so it is necessary to increase the refrigeration power of the ship fuel tank to make the injected fuel not be gasified too much after entering the fuel tank, so as to make the pressure of the whole filling system controllable and ensure the safety of filling.