JP5016972B2 - Heavy oil reforming method and heavy oil reforming combined plant - Google Patents

Description

  The present invention relates to a heavy oil reforming method for reforming heavy oil to make light oil, and a heavy oil reforming combined plant.

  In recent years, due to resource constraints, it has become difficult to increase crude oil production in response to increasing energy demand, and crude oil prices have risen significantly. For this reason, it has begun to reform heavy oils such as Canadian oil sands, Venezuelan orinocotals, and oil shells that could not compete economically with cheaper crude oil and were not mined on a large scale. ing. As a technique for reforming heavy oil, a method using hydrogen is known (see Patent Document 1).

JP-A-6-248278

  As described above, hydrogen used for heavy oil reforming is often produced from natural gas. However, it is predicted that this natural gas will be difficult to secure in the heavy oil excavation area in the future. In addition, when a steam reforming method widely used as a method for producing hydrogen from natural gas is used, carbon dioxide, which is a global warming gas, is generated as a by-product.

  As a technology that can obtain hydrogen without using fossil resources such as natural gas and without generating carbon dioxide, there is one that produces hydrogen by electrolyzing water with electric power obtained from a wind power generator. is there. However, in wind power generation, since the wind speed is not constant and generated power fluctuates over time, it is difficult to balance power demand and supply (supply-demand balance).

  An object of the present invention is to provide a heavy oil reforming method and a heavy oil reforming combined plant that can effectively use electric power obtained by wind power generation.

  In order to achieve the above object, the present invention predicts the total demand power required for heavy oil reforming and sets a target total power generation amount to be generated by a wind power generation facility and a gas turbine facility; A procedure for operating the gas turbine equipment to approach a power generation amount obtained based on a power generation amount and a predicted power generation amount of the wind power generation facility; a procedure for supplying a set amount of power to a water electrolysis device that generates hydrogen; A procedure for distributing the surplus power to the power utilization equipment based on a predetermined priority when the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount and surplus power is generated. And heavy oil is reformed by a procedure for supplying hydrogen generated by the water electrolysis apparatus to the heavy oil reforming facility.

  According to the present invention, the supply and demand balance of electric power can be achieved even if the electric power obtained by wind power generation fluctuates over time, so that the consumption of natural gas used for reforming heavy oil can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall configuration diagram of a heavy oil reforming complex plant according to an embodiment of the present invention.

  The heavy oil reforming complex plant shown in this figure mainly includes a wind power generation facility (wind farm) 20 and a heavy oil treatment site 40. The wind power generation facility 20 and the heavy oil processing site 40 are connected by a transmission line 22 (for example, a total length of 100 km), and the electric power generated by the wind power generation facility 20 is supplied to the heavy oil processing site 40.

  The wind power generation facility 20 is provided with a plurality of wind power generators (windmills) 25. This wind power generator 25 is a horizontal axis propeller type having a horizontal rotation axis and has three blades (for example, a diameter of 80 m), and is installed at the top of a concrete tower (for example, 80 m above the ground). Yes. Further, the wind power generator 25 is provided with an electric U-drive control device that always directs the propeller to the windward side. Since winds near the surface of the earth are slowed down by structures and trees that exist on the surface, the average wind speed increases and the amount of power generation increases as the wind turbine is installed at a higher position from the ground. The induction motor exists on the shaft. For example, it is preferable to start power generation at a wind speed of 4 m / s and stop power generation due to safety restrictions when the wind speed exceeds 25 m / s. In the present embodiment, for example, 100 wind power generators 25 each having an output of 2 MW are installed. In major developed countries such as Canada, the annual wind speed distribution according to the height at which wind turbines are installed at each point in the country is investigated by the country, so it is possible to construct wind turbines without investigating wind speeds, etc. is there.

  By the way, if the installation interval of the windmills is narrow, the wind flow is disturbed by the influence of the adjacent windmills and the efficiency is lowered. Therefore, in general, in order to eliminate the influence between the windmills, an installation interval 10 times the blade diameter is secured. There is a need. Therefore, when the windmill diameter is 80 m as described above, it is sufficient to separate at least 800 m. Therefore, in this embodiment, in consideration of a slight margin, it is assumed that a grid arrangement with an installation interval of 1 km is performed in a range of 20 km in the north-south direction and 5 km in the east-west direction, and 100 wind turbines are installed in a 20 × 5 arrangement.

  In addition, a transformer facility 21A and a spare part storage (not shown) are provided at the center of the wind power generation facility 20. The electric power (for example, 480V) generated by the windmill 25 is boosted to a predetermined voltage (for example, 4160V) and collected in the transformation facility 21A via the system 24 that transmits power in the wind power generation facility 20. The electric power collected in this way is further boosted to a predetermined voltage (for example, 115,000 V) by the transformation equipment 21 </ b> A and transmitted to the heavy oil treatment site 40 via the power transmission line 22. The electric power sent to the heavy oil treatment site 40 is stepped down to a predetermined voltage (for example, 4160 V) by the transformation equipment 21B provided in the site 40, and is distributed to each equipment in the site 40.

  A farm monitoring device 51 is provided in the wind power generation facility 20. The farm monitoring device 51 collects information (data) relating to the power quality such as the output (actual power generation amount) and voltage of the wind power generator 25 of the wind power generation facility 20, and via the communication line 52 arranged in parallel with the power transmission line 22. The collected data is transmitted to the monitoring control device 50 (described later) in the heavy oil processing site 40.

  By the way, Alberta, Canada, which produces oil sands, is near the Arctic Circle in the high latitude zone of 52 degrees north latitude, and there are many points where wind suitable for wind power generation blows. The most wind energy is located in the northern part of the Rocky Mountains, where the altitude is low and there is little interaction with the ground. Near the Rocky Mountains, there is a point where the annual occupancy rate is close to 70%. North American mountain ranges are old and eroded, and are located in the vast North American continent. It is easy to construct a wind power generation facility.

  In addition, although the example which transmitted the electric power boosted to the high voltage by the wind power generation equipment 20 to the heavy oil processing site 40 was described above, electric power is supplied to the water electrolysis apparatus provided in the wind power generation equipment 20 and hydrogen is supplied. It is also possible to manufacture and supply hydrogen to the heavy oil treatment site 40 through a pipeline.

  The heavy oil processing site (processing site) 40 includes a gas turbine facility 38 that supplies power to facilities in the site 40, a water electrolysis device 30 that electrolyzes water to generate hydrogen and oxygen, and a water electrolysis device 30. A hydrogen tank 35 for storing a large amount of hydrogen, a heavy oil reforming facility 23 for reforming heavy oil using hydrogen from the hydrogen tank 35, and a transforming facility 21B for transforming electric power from the wind power generation facility 20. The monitoring control device 50 for controlling the equipment in the site 40 is mainly provided.

  The gas turbine equipment 38 generates electric power by driving a turbine with combustion gas obtained by burning fuel (natural gas) 42 and compressed air. The gas turbine equipment 38 and the monitoring control device 50 are connected by a communication line (not shown), and the monitoring control device 50 monitors the operation status (for example, actual power generation amount) of the gas turbine equipment 38 and performs output control. ing.

  The water electrolysis apparatus 30 uses water from the gas turbine facility 38 and the wind power generation facility 20 to electrolyze water to generate oxygen and hydrogen. Water used for electrolysis by the water electrolysis apparatus 30 is obtained from a water tank 33 (described later) provided in the site 40. The water electrolysis device 30 is connected to the hydrogen tank 35 through the compressor 34 and is connected to the oxygen tank 37. The water electrolysis device 30 and the monitoring control device 50 are connected by a communication line (not shown). The monitoring control device 50 monitors the operation status of the water electrolysis device 30 (for example, the production amounts of hydrogen and oxygen), and water. Power supply control to the electrolyzer 30 is performed.

  The water electrolysis apparatus 30 is constituted by an electrode cell (not shown) which is a basic element. The electrode cell has a cathode and an anode formed by compressing metal fibers with a polymer electrolyte membrane interposed therebetween. The hydrogen and oxygen generated at the anode and the cathode are collected by the hydrogen and oxygen header through the fibrous electrode without being joined by the polymer electrolyte membrane, and stored in the hydrogen tank 35 and the oxygen tank 37. For example, in the above electrode cell, the current density per 1 m 2 of area is 25 kA / m 2, the cell voltage is 1.7 V, and the thickness per cell is 3 cm. When 200 electrode cells are stacked, the stack has a thickness of 6 m and a size of 1.5 m in length and width, and a voltage of 340 V and a maximum power of 8.5 MW are used. When 15 stacks are arranged in parallel and rated operation is performed using 120 MW of power, hydrogen and oxygen can be produced at 30 kNm3 per hour.

  Further, when the operating pressure of the water electrolysis apparatus 30 when producing hydrogen is increased, the reaction temperature is increased and the energy conversion efficiency is increased (for example, when the operating pressure is 4 ata, the reaction temperature is 120 ° C. and the energy conversion efficiency is increased). And 90%), and the pressure power when supplying hydrogen to the heavy oil reforming equipment 23 can be reduced.

  By the way, the water electrolysis device 30 is easily corroded when water is electrolyzed, and the efficiency is lowered by an oxide film formed on the metal surface of the electrode. Therefore, the metal surface of the electrode is preferably plated with gold or platinum. Further, it is preferable to use titanium having excellent corrosiveness for the end plate or the like. Thus, since the water electrolysis apparatus tends to be relatively expensive, it is more economical to use the water electrolysis apparatus under conditions with a high operation rate. Including such circumstances, when the water electrolysis apparatus 30 is operated by wind power generation whose output varies as in the present embodiment, the maximum power that can be used by the water electrolysis apparatus 30 (equipment capacity of the water electrolysis apparatus 30). Depending on the setting, there may be cases where profitability cannot be achieved, and the setting of the capacity of the water electrolysis device 30 becomes a problem.

  Therefore, in the present embodiment, economic efficiency is ensured by determining the capacity of the water electrolysis device 30 based on the annual operating rate of the wind power generation facility. The annual operating rate of this wind power generation facility varies depending on the region where the wind power generation facility 20 is installed. For example, in a high latitude region close to the Arctic where wind continues to blow throughout the year, the annual operating rate of wind power generation equipment is around 60%, so the capacity of the water electrolysis device is equivalent to 60% of the maximum output of the wind power generation equipment. It can be set as follows. For economic reasons as described above, it is preferable to supply the water electrolysis apparatus 30 with power equal to the equipment capacity as much as possible.

  When the capacity of the water electrolysis apparatus 30 is set in this way, surplus power is generated when the wind power generation facility 20 is operated at 100% output. Therefore, this surplus power can be used effectively in other facilities. As equipment for supplying this surplus power, there are a water treatment device 4 and an electric boiler 17 provided in a heavy oil reforming equipment 23 described later. On the other hand, when the power generation output of the wind power generation facility 20 falls below the maximum power consumption of the water electrolysis device 30, it can be dealt with by reducing the number of stacks to be operated from among a plurality of stacks provided in parallel.

  The hydrogen tank 35 stores hydrogen produced by the water electrolysis apparatus 30 and pressurized to a predetermined pressure (for example, 20 ata) by the compressor 34. The hydrogen tank 35 is connected to the outlet of a PSA device 13 (described later) in the heavy oil reforming facility 23, and the hydrogen in the hydrogen tank 35 is used for the heavy oil reforming process, so that the reforming facility 23 Has been supplied to. The hydrogen tank 35 and the monitoring control device 50 are connected by a communication line (not shown), and the monitoring control device 50 monitors the amount of hydrogen stored and the amount of increase in the hydrogen tank 35.

  By the way, since hydrogen has a low molecular weight, the temperature tends to rise when pressurized. Therefore, if a heat exchanger (not shown) is provided between the compressor 34 and the hydrogen tank 35 and the density is increased while the hydrogen is cooled and supplied to the hydrogen tank 35, the required capacity of the hydrogen tank 35 is reduced. It becomes possible to do. Further, by configuring the hydrogen tank 35 with a plurality of tanks, the control performance is improved by separating the tank that discharges hydrogen to the heavy oil reforming facility 23 and the tank that receives hydrogen from the water electrolysis device 30. It is also possible. Furthermore, by providing a large hydrogen tank 35, even if the wind is weak and the output of wind power generation is reduced, hydrogen can be supplied for a certain period of time.

  In the oxygen tank 37, oxygen produced by the water electrolysis device 30 is stored. The oxygen tank 37 is connected to a gasification facility 53 (described later) for gasifying oil sand, and oxygen in the oxygen tank 37 is supplied to the gasification facility 53 as an oxidizer for oil sand gasification. . The oxygen tank 37 and the monitoring control device 50 are connected by a communication line (not shown), and the monitoring control device 50 monitors the amount of oxygen stored and the amount of increase in the oxygen tank 37.

  The heavy oil reforming equipment 23 reforms heavy oil (oil sand) 42 using hydrogen. The heavy oil reforming facility 23 and the monitoring control device 50 are connected by a communication line (not shown), and the monitoring control device 50 monitors the operation status of each facility in the heavy oil reforming facility 23 and The power supply control to the equipment is performed.

  By the way, oil sand is an organic compound in the previous stage to become crude oil, and exists in the state of asphalt in the gaps of sand. The maximum proportion of oil sands in the formation is about 15%, but from an economic point of view, oil sands with an asphalt weight ratio of 6% or more are mined, and oil sands with an average asphalt weight of about 10%. Sand is used by separating sand and asphalt. Canada's oil sands have the same amount of energy as crude oil in Saudi Arabia, the world's largest resource-rich country. The place where it is buried is around Fort McMurray in Alberta. The oil sand layer is a sand layer of about 40 m, and 25 m of topsoil exists on it. When mining by open-pit mining, after removing the topsoil, the entire oil sand layer is mined with a power shovel and transported to a treatment facility with a dump truck. At the point where the mining is completed, the asphalt is separated and then backfilled with sand.

  Asphalt has a carbon weight ratio of about 83% and hydrogen of about 10%, the rest being nitrogen and sulfur components, and the weight ratio of hydrogen / carbon is smaller than that of crude oil. For this reason, the viscosity is large and it is difficult to transport by pipeline at room temperature. Therefore, in the oil sands excavation facility, hydrogen is produced using natural gas as a raw material, and this is added to asphalt to increase the weight ratio of hydrogen and reduce the viscosity before transporting by pipeline.

  FIG. 2 is a system configuration diagram of the heavy oil reforming facility 23 in the heavy oil reforming complex plant according to the embodiment of the present invention. In this figure, the solid line indicates the flow of a relatively high-viscosity fluid, the alternate long and short dash line indicates the flow of a relatively low-viscosity fluid, and the dotted line indicates the flow of a gas body.

  The heavy oil reforming equipment 23 shown in this figure includes a rotating drum device 1, a diluent recovery device 2, a vacuum distillation device 5, a fluid coker 6, an LC finalizer 7, a naphtha hydrogenation processing device 8, A light gas oil hydrotreating device 9, a heavy gas oil hydrogenation document device 10, a steam reforming device 11, a shift converter 12, a PSA device 13, an offgas processing device 14, and an environmental device 15 are provided. In addition, as facilities associated with the heavy oil reforming facility 23, a stationary pond 3, a water treatment device 4, a water tank 33, a gasification facility 53, and a hydrogen tank 35 are provided.

  The rotary drum device 1 is used in an asphalt extraction process in which clay and sand are separated from oil sand 41 to extract asphalt (floss). In the rotary drum device 1, the oil sand is changed into a slurry by adding warm water and caustic soda, and the clay and sand having a high density are separated from the slurry by the rotation of the drum. At this time, asphalt in the slurry component floats on the surface of the slurry as foamed floss. The floss on the surface of the slurry is recovered, diluted with naphtha, and sent to the diluent recovery device 2. On the other hand, the waste water containing clay and sand is sent to the stationary pond 3.

  In addition to the drainage containing clay and sand, the stationary pond 3 is led to waste liquid generated in the heavy oil reforming facility 23 (the amount of waste liquid is about eight times that of the synthetic crude oil to be produced). The solid matter (for example, clay and sand) in the waste liquid led here is settled and separated by its own weight. The supernatant liquid from which the solid matter has almost disappeared in the stationary pond 3 is sent to the water treatment device 4. The water treatment device 4 passes water pressurized by a pump through a reverse osmosis membrane and purifies the water, and uses electric power supplied from the wind power generation equipment 20 and the gas turbine equipment 38 as the driving force of the pump. ing. The water filtered by the water treatment device 4 is sent to the water tank 33 and stored.

  The water tank 33 is connected to the water electrolysis device 30 and the heavy oil reforming equipment 23. The water stored here is used as a raw material for hydrogen and oxygen produced by the water electrolysis apparatus 30 or used in the heavy oil reforming equipment 23 including the use in the rotary drum apparatus 1 described above. The capacity of the water tank 33 is set so that it is not necessary to operate the water treatment device 4 continuously. For example, the capacity of the water tank 33 may be set to a capacity that can store the amount used for about one week. If the capacity of the water tank 33 is set in this way, electric power can be supplied to the water treatment device 4 to obtain a necessary amount of pure water when there is a surplus in the power generation amount of the wind power generation facility 20. Thus, the water treatment device 4 and the water tank 33 in the present embodiment have a function of absorbing fluctuations in the amount of power generated by the wind power generation facility 20.

  The diluent recovery device 2 separates the floss diluted with naphtha as described above into naphtha and heavy asphalt having a relatively low specific gravity by a centrifugal separator (not shown). The naphtha separated by the diluent recovery device 2 is returned to the rotary drum device 1 and reused. On the other hand, the asphalt component is further separated into a high-viscosity and low-viscosity fluid by the diluent recovery device 2, the low-viscosity component is sent to the light gas oil hydrotreating device 9, and the high-viscosity fluid is sent to the vacuum distillation device 5. .

  The vacuum distillation apparatus 5 further separates the fluid from the diluent recovery apparatus 2 into a high-viscosity fluid and a low-viscosity fluid by reducing the pressure. The low-viscosity fluid component separated here is sent to the reformed light oil hydrotreating device 9 together with the low-viscosity component separated by the diluent recovery device 2, and the high-viscosity fluid is sent to the heavy light oil hydrotreating device 10. . Further, the residue having a particularly low fluidity discharged from the lower part of the vacuum distillation apparatus 5 is supplied to the fluid coker 6.

  By the way, in order to reduce the viscosity of asphalt, it is necessary to increase the weight ratio of hydrogen / carbon, and there are two types of methods: (a) a method of adding hydrogen and (b) a method of removing carbon. . In the process shown in FIG. 2, the LC finalizer 7, the naphtha hydrotreating device 8, the reformed light oil hydrotreating device 9, and the heavy gas oil hydrotreating device 10 are devices for adding hydrogen to asphalt. 6 is an apparatus for removing carbon from asphalt.

  The fluid whose viscosity has been reduced by removing carbon in the fluid coker 6 is separated according to the viscosity, and its low-viscosity component is sent to the naphtha hydrotreating device 8, and the low-viscosity component is the heavy gas oil hydrotreating device 10. Sent to. Further, the residue obtained by separating mainly carbon from the highly viscous material is burned in a fluidized bed (not shown) and recovered as thermal energy.

  Hydrogen added to reduce the viscosity of asphalt in the above-described hydrogen adding devices 7, 8, 9, 10 is produced in the reforming equipment 23 by the steam reformer 11, the shift converter 12, and the PSA device 13. Is done.

  The steam reformer 11 is a device that partially burns natural gas 42 and steam, which are mainly composed of methane, in a reducing atmosphere, and converts them into hydrogen and carbon monoxide. The hot gas obtained by the steam reformer 11 is cooled and guided to the shift converter 12.

  The shift converter 12 adds steam to the gas obtained by the steam reformer 11, and converts most of the carbon monoxide to hydrogen by the catalytic reaction of the following formula (1). The generated gas is guided to the PSA device 13.

CO + H ₂ O → CO ₂ + H ₂ (1)
The PSA device 13 is configured to separate carbon monoxide and hydrogen by changing the pressure periodically and utilizing the difference in the rate of adsorption and desorption of hydrogen and carbon monoxide into the silica gel. Since the reaction of the above formula (1) performed in the shift converter 12 is a reversible reaction, some carbon monoxide remains in hydrogen. This carbon monoxide is a catalyst used in the process in the LC finalizer 7 and the naphtha hydrotreating device 8. Will degrade the performance. Therefore, the PSA device 13 separates carbon monoxide from the gas of the shift converter 12 to produce pure hydrogen.

  A pipe from the hydrogen tank 35 is connected to the hydrogen outlet of the PSA device 13. The hydrogen in the hydrogen tank 35 merges with the hydrogen from the PSA device 13 and is supplied to the LC finaler 7, the naphtha hydrogenation device 8, the light gas oil hydrogenation device 9, and the heavy gas oil hydrogenation device 10. Is done.

  The LC finalizer 7 adds hydrogen supplied from the PSA device 13 and the hydrogen tank 35 to the high viscosity component from the diluent recovery device 2 to reduce the viscosity, and the low viscosity component obtained here is light gas oil. It is sent to the hydrotreating device 9.

  The naphtha hydrotreating device 8, the reformed light oil hydrotreating device 9, and the heavy gas oil hydrotreating device 10 add low-viscosity liquid components by adding hydrogen supplied from the PSA device 13 and the hydrogen tank 35 to the asphalt. Is generated. In addition, in the hydrogenation process performed in said apparatus 7,8,9,10, according to the liquid property of object, the temperature of the operating condition which advances reaction, pressure, reaction time, and the kind of catalyst to be used are selected. .

  The low-viscosity liquid components obtained from the naphtha hydrotreating device 8, the reformed light oil hydrotreating device 9, and the heavy gas oil hydrotreating device 10 are mixed to become synthetic crude oil, which is pressurized with a pump (not shown). Then, it is sent to the consumption area by the pipeline 16. In the above process, if the weight ratio of hydrogen / carbon of asphalt first separated from the oil sand is 0.125, the synthetic crude oil finally sent through the pipeline 16 increases to 0.144. Although the increase in the weight ratio is small, the chemical formula changes greatly because hydrogen has a low molecular weight, so the viscosity of the synthetic crude oil at room temperature is reduced to about 1/80 compared with the viscosity of the raw material asphalt.

  Off-gas (combustible gas) is generated in the reaction process of the fluid coker 6, the naphtha hydrotreating device 8, the reformed light oil hydrotreating device 9, and the heavy light oil hydrotreating device 10. This off-gas is led to the off-gas treatment device 14 and burned, and then led to the environmental device 15. The environmental device 15 removes impurities such as sulfur components in the gas, and the combustion gas introduced from the off-gas treatment device 14 to the environmental device 15 is released to the atmosphere after the impurities are removed.

  In the off-gas treatment device 14, water vapor is generated using the combustion heat generated by the off-gas. This steam is mainly used as thermal energy for obtaining hot water used in the asphalt extraction process, but may be sent to the steam reformer 11, the shift converter 12, or the like. It is also possible to increase the pressure of water vapor generated by the off-gas treatment device 14, drive the steam turbine at that pressure to recover energy, and use low-pressure steam discharged from the steam turbine as a heat source. good.

  The gasification facility 53 mixes oil sand and oxygen at a high temperature (for example, about 1700 ° C.) to generate gas and generate carbon monoxide and hydrogen, and is connected to the heavy oil reforming facility 23 and the oxygen tank 37. Has been. The heavy oil reforming equipment 23 is supplied with a part of the asphalt that circulates inside (for example, asphalt sent from the diluent recovery device 2 to the vacuum distillation device 5), and oxygen from the oxygen tank 37 is converted into the oxidizer. It is used as a gasifier. When oxygen is used in this way as an oxidant for gasification of oil sand, energy efficiency is improved as compared with the case of using air. Carbon monoxide and hydrogen obtained in the gasification facility 53 may be used as fuel to replace the natural gas 42 in the gas turbine facility 38, or only hydrogen is separated and used for reforming heavy oil. Also good. In any case, the consumption of natural gas used for heavy oil reforming at the heavy oil reforming site 40 can be reduced.

  Note that the electric boiler 17 may be provided as equipment for generating water vapor used in the heavy oil reforming equipment 23 in the same manner as the off-gas treatment device 14 described above. If the electric boiler 17 is configured so that electric power is supplied when there is a surplus in the amount of power generated by the wind power generation facility 20, the power generated by the wind power generation can be used efficiently.

  By the way, the transformation equipment 21B in FIG. 1 transforms the electric power from the wind power generation equipment 20, and the electric power transformed into each equipment in the heavy oil treatment site 40 including the water electrolysis device 30 and the water treatment device 4 is used. Supply.

  The monitoring control device 50 controls the output of the gas turbine equipment 38 and the power supply to the equipment in the site 40 so that the demand and supply of power in the heavy oil reforming complex plant coincide. is there. The monitoring control device 50 is connected to each facility of the heavy oil reforming treatment site 40 via a communication line (not shown), and is connected to the farm monitoring device 51 via a communication line 52. . The monitoring control device 50 transmits a control command to the equipment in the plant while receiving operation information of the equipment in the plant via the communication line.

  FIG. 3 is a hardware configuration diagram of the monitoring control device 50.

  In this figure, a monitoring control device 50 is connected to a display device 200 on which a monitoring control screen (see FIG. 5 described later) is displayed and each facility in the site 40 via a communication line, and data is transmitted to and received from each facility. A communication device 211 for performing the various operations performed by the monitoring control device 50, an input device 213 for inputting an instruction to the monitoring control device 50 by an operator, and the arithmetic processing device 212 performing the arithmetic processing. A storage device 220 for temporary storage in which data to be used for the storage is temporarily stored, and a storage device 230 in which data transmitted from equipment in the site 40 and data calculated by the arithmetic processing unit 212 are stored I have.

  The storage device 230 includes a demand database (demand DB) 231, a power generation database (power generation DB) 232, a generation amount database (generation amount DB) 233, a storage amount database (storage amount DB) 234, and a maintenance information database (maintenance). Information DB) 235.

  The demand DB 231 stores the demand amount of the reformed oil and the data related to the demand amount necessary to satisfy the demand (for example, the predicted value and actual value of the demand for power, steam, hydrogen, oxygen, water, etc.). It is what. Here, for example, the demand power amount of each facility in the plant (for example, the demand power amount of the water electrolysis device 30, the demand power amount of the water treatment device 4, the demand power amount of the electric boiler 17), heavy oil reforming Predicted values and actual values such as the steam demand of the facility 23, the hydrogen demand of the heavy oil reforming facility 23, the oxygen demand of the gasification facility 53, and the water demand of the water electrolysis device 30 are recorded.

  In the power generation DB 232, data related to power generation of the wind power generation facility 20 and the gas turbine facility 38 (for example, predicted values and actual values of the power generation amount of the wind power generation facility 20, actual values of the power generation amount of the gas turbine facility 38, etc.) are recorded. Is. The power generation amount prediction of the wind power generation facility 20 is obtained from the weather information transmitted from the farm monitoring device 51, the actual value of the wind power generation amount, or the like.

  The production amount DB 233 records data related to what is produced in the processing site 40 (for example, predicted values and actual values of production amounts for reformed oil, steam, hydrogen, oxygen, and water). , The amount of reformed oil produced by the heavy oil reforming facility 23, the amount of steam produced by the off-gas treatment device 14 and the electric boiler 17, the amount of hydrogen produced by the water electrolyzer 30, the amount of oxygen produced by the water electrolyzer 30 and the water treatment device 4 Predicted values and actual values such as the amount of pure water produced are recorded.

  The storage amount DB 234 records data related to what is stored in the processing site 40 (for example, the actual value of the storage amount in the hydrogen tank 35, the oxygen tank 37, and the water tank 33 and the predicted value of the storable amount). Is.

  The maintenance information DB 235 records failure information of each facility in the heavy oil reforming processing site 40, a scheduled periodic maintenance plan, a regular maintenance record, and the like.

  FIG. 4 is a functional block diagram of the monitoring control device 50.

  In this figure, the monitoring control device 50 includes a target total power generation amount setting unit 250, a gas turbine control unit (GT control unit) 260, and a power supply control unit 270.

  The target total power generation amount setting unit 250 predicts the total demand power required for heavy oil reforming and sets the target total power generation amount (Wo) to be generated by the wind power generation facility 20 and the gas turbine facility 38 at a predetermined timing. Is.

  When setting the target total power generation amount Wo, the target total power generation amount setting unit 250 first predicts the power generation amount of the wind power generation facility 20. Since the power generation amount of the wind power generation facility 20 depends on weather conditions, when calculating the predicted wind power generation amount (Wwo), for example, the current value of wind power obtained from the farm monitoring device 51 or the weather forecast can be obtained. It may be performed based on the predicted wind power. Further, here, time fluctuation within a predetermined time of wind power generation is predicted. When predicting this time variation, it may be calculated based on the current value or predicted value of wind power, as in the case of predicting the amount of power generation. The predicted wind power generation amount Wwo and the time fluctuation prediction predicted in this way are sent to the power generation DB 232 and stored therein.

  Next, the target total power generation amount setting unit 250 predicts demand power (predicted total demand power (Wdo)) required for heavy oil reforming at the processing site 40. The predicted total demand power Wdo is basically calculated from the viewpoint of how much minimum power is necessary to generate reformed oil that satisfies the demand, but it is necessary to always operate at full capacity as needed. The power to be supplied to the power utilization facility (the water electrolysis device 30 or the water treatment device 4 or the like) that is not present is added and finally determined. The predicted total demand power Wdo set in this way is sent to the demand DB 231 and stored. Based on the predicted total demand power Wdo, the target total power generation amount setting unit 250 sets the target total power generation amount Wo. The target total power generation amount Wo is stored in the power generation DB 232.

  When the predicted total demand power Wdo is set, when the water electrolysis apparatus 30 is operated to the maximum to improve the economy of heavy oil reforming, the hydrogen tank 35 is not empty. The predicted total demand power Wdo may be set on the assumption that power corresponding to the installed capacity is supplied to the water electrolysis apparatus 30 (electrolysis priority mode). Furthermore, it is efficient to set the power equivalent to the equipment capacity to the water treatment device 4 and the electric boiler 17 as necessary. Further, when calculating the predicted total demand power Wdo, in order to consider the power generation amount by the wind power generation facility 20, the predicted wind power generation amount Wwo and time fluctuation prediction calculated in the previous stage may be used. good. By calculating the predicted total demand power Wdo as described above, it is possible to set a demand suitable for the prediction of the amount of wind power generation. Here, the method of calculating the predicted wind power generation amount Wwo and the like to set the target total power generation amount Wo has been described, but the predicted total demand power Wdo may be calculated without predicting the wind power generation amount. .

  The GT control unit 260 operates the gas turbine equipment 38 so as to approach the target power generation amount (GT target power generation amount (Wgo)) calculated based on the target total power generation amount Wo and the predicted wind power generation amount Wwo at a predetermined timing. It is.

  The GT target power generation amount Wgo is determined based on the target total power generation amount Wo, the predicted wind power generation amount Wwo, and the wind power generation time fluctuation prediction. The GT target power generation amount Wgo can be identified as a value obtained by subtracting the predicted wind power generation amount Wwo from the target total power generation amount Wo in principle, but is appropriately corrected according to the wind power generation time fluctuation prediction. That is, the GT target power generation amount Wgo determined here needs to be compensated by the gas turbine equipment 38 when the wind power generation time fluctuation is predicted to be large. There is a tendency that the amount of time fluctuation of wind power generation becomes larger than that obtained by subtracting the predicted wind power generation amount Wwo from the power generation amount Wo. On the other hand, when the time fluctuation of wind power generation is predicted to be small, the GT target power generation amount Wgo approaches the target total power generation amount Wo minus the predicted wind power generation amount Wwo.

  When the GT target power generation amount Wgo is set in this way, the GT control unit 260 controls the output of the gas turbine facility 38 so that the gas turbine facility 38 can obtain a power generation amount close to the target power generation amount Wgo. The timing for setting the GT target power generation amount Wgo and adjusting the output of the gas turbine equipment 38 as described above includes a method that is carried out at predetermined intervals, and a predicted value and an actual measurement value of the wind power generation amount. The average power generation amount Wm is calculated from a method executed when the deviation of the power generation exceeds a threshold value or from the sum of the actual power generation amounts of the wind power generation facility 20 and the gas turbine facility 38 in a predetermined time (total actual power generation amount W). There is a method that is performed when the deviation between the average power generation amount Wm and the target total power generation amount Wo is greater than or equal to a threshold value.

  The power supply control unit 270 matches the actual power generation amount (supply amount) and the demand amount based on the sum of the actual power generation amounts of the wind power generation facility 20 and the gas turbine facility 38 (total actual power generation amount W) and the target total power generation amount Wo. Thus, the power supply is controlled.

  First, the power supply control unit 270 compares the sum of the actual power generation amounts (total actual power generation amount W) of the wind power generation facility 20 and the gas turbine facility 38 with the target total power generation amount Wo. As a result, when the total actual power generation amount W matches the target total power generation amount Wo (that is, when the actual power generation amount of the wind power generation facility 20 matches the predicted wind power generation amount Wwo), or the total actual power generation amount W is the predicted total demand power Even if it is smaller than Wdo, when the difference is small enough to be ignored in the subsequent control (when the total actual power generation amount W and the target total power generation amount Wo substantially match), when the predicted total demand power Wdo is calculated, The same power as the used demand is supplied to each facility in the processing site 40. Conversely, when the total actual power generation amount W exceeds the target total power generation amount Wo (that is, when the actual power generation amount of the wind power generation facility 20 exceeds the predicted wind power generation amount Wwo), surplus power is generated. The surplus power is distributed to the power utilization facilities (for example, the water electrolysis device 30, the water treatment device 4, the electric boiler 17, etc.) in the treatment site 40 based on the determined priority order. At this time, the power supply control unit 270 stores the storage capacity (for example, the hydrogen tank 35, the oxygen tank 37, the water tank 33, etc.) in which the capacity of each power usage facility and the product of each power usage facility are stored. The equipment and amount for supplying surplus power are determined in consideration of the possible amount (free capacity). In the present embodiment, priority is given to electrolysis of water in the water electrolysis device 30, and power is supplied in the order of (1) the water electrolysis device 30, (2) the water treatment device 4, and (3) the electric boiler 17. (Electrolysis priority mode), the power supply amount to each facility when surplus power is generated based on the storable amount of the water tank 33 is set.

  When predicting the storable amount of each storage tank, for example, based on the data in the generation DB 233, the predicted generation amount of each substance (the predicted value of the hydrogen generation amount and the oxygen generation amount of the water electrolysis device 30, the water The predicted value of the pure water production amount of the processing device 4) is calculated, and the current value of the storage amount of each tank 33, 35, 37 stored in the storage amount DB 234 may be calculated in combination with this. It should be noted that the present invention is not limited to such a control method, and an upper limit value of the storage amount of each storage tank is set in advance, and a product is not added to the tank when the storage amount reaches the upper limit value. good.

  In the above description, a method of comparing the total actual power generation amount W and the target total power generation amount Wo is used as a criterion for changing the control method of power supply. However, in addition to this, the total actual power generation amount W and the target total power generation amount Wo are used. Or a method of determining whether or not the deviation between the predicted wind power generation amount Wwo and the actual wind power generation amount falls within the threshold value may be used.

  FIG. 5 is a diagram illustrating an example of a monitoring control screen displayed on the display device 200 of the monitoring control device 50.

  The monitoring control screen shown in this figure includes an operation mode selection unit 340, a message display unit 343, a demand display unit 351, a wind power generation power display unit 354, a gas turbine power generation power display unit 357, and a storage amount display unit 361. And a power quality display unit 364.

  The operation mode selection unit 340 includes a selection unit 341 that can select an electrolysis priority mode that prioritizes hydrogen generation by the water electrolysis apparatus 30, and an optimization mode that minimizes the cost required for heavy oil reforming (see FIG. 7 below). A selection unit 342 that can be selected) is provided. The operation mode is selected by the operator via the input device 213. Thereby, the operator can select said each mode suitably according to the operating condition of a plant.

  In the message display section 343, the progress of normal operation is displayed. In addition, when a failure or failure occurs in a device or system, a message that informs the operator of the failure or failure location, or that a failure or failure has occurred. A warning is displayed. Such a message notifying the failure / failure is displayed based on the data recorded in the maintenance information DB 235 in the monitoring control device 50.

  The demand display unit 351 displays a current value display unit 352 that displays the current power consumption (demand) of the water electrolysis device 30, the heavy oil reforming facility 23, the water treatment device 4, and the like, and the processing amount in each facility. If it can be specified, a command value display unit 353 is provided for displaying a command value of the processing amount at a predetermined time for performing the control.

  The wind power generation power display unit 354 displays a current value display unit 355 that displays current power generation for each power collection unit of the wind power generation facility 20 and a predicted value display that displays a predicted value of power generation at a predetermined time. A portion 354 is provided.

  The gas turbine generated power display section 357 is provided with a current value display section 358 that displays the current power generation amount of the gas turbine equipment 38 and a command value display section 359 that displays a command value at a predetermined time. .

  The storage amount display unit 361 includes a current value display unit 362 that displays the current storage amount and a storable amount display unit 363 that displays the amount that can be stored in the tank.

  The power quality display unit 364 includes a frequency display unit 364 that displays a power frequency trend at the processing site 40 and a voltage display unit 365 that displays a voltage trend. In addition, although illustration is abbreviate | omitted, you may comprise so that the tolerance | permissible_range of a frequency and a voltage may be displayed on each display part 364,365.

  According to the monitoring control screen configured as described above, the operator can easily recognize the operation status of the plant.

The control process of the heavy oil reforming combined plant configured as described above will be described using a flowchart.
FIG. 6 is a flowchart of control processing by the monitoring control device 50.

  When the process is started, the monitoring control device 50 determines whether or not it is a predetermined time (control timing) (S500), and waits for the process if it is not the predetermined time. If it is the predetermined time, the target total power generation amount setting unit 250 in the monitoring control device 50 determines whether it is the target total power generation amount setting timing (S501). At this timing, the target total power generation amount setting unit 250 calculates the predicted wind power generation amount Wwo based on the data in the storage device 230 (for example, data in the power generation DB 232) (S502). Subsequently, the target total power generation amount setting unit 250 calculates the predicted total demand power Wdo using data in the storage device 230 (for example, data in the demand DB 231 and the generation amount DB 233) (S503), and this predicted total power A target total power generation amount Wo is set based on the demand power Wdo (S504). Here, it is assumed that the demand power of the water electrolysis apparatus 30 is equivalent to the equipment capacity, and the demand power of the water treatment apparatus 4 is an amount set to be equal to or less than the equipment capacity, and the predicted total demand power Wdo is calculated. If the power demand of the water electrolysis device 30 is set in this way, even when wind power generation fluctuates, power equivalent to the installed capacity is supplied to the water electrolysis device 30, so that economic efficiency is improved when reforming heavy oil. Can be secured.

  When the target total power generation amount setting timing is not reached and when the target total power generation amount Wo is set as described above, the GT control unit 260 determines whether it is time to control the gas turbine equipment 38 (S505). ). At this timing, the GT control unit 260 sets the GT target power generation amount Wgo based on the target total power generation amount Wo, the predicted wind power generation amount Wwo, and the wind power generation time fluctuation prediction (S506), and the gas turbine equipment 38. Thus, the output of the gas turbine equipment 38 is controlled so that a power generation amount close to the target power generation amount Wgo is obtained (S507).

  When the control timing of the gas turbine equipment 38 is not reached and when the gas turbine equipment 38 is controlled as described above, the power supply control unit 270 is the sum of the actual power generation amounts of the wind power generation equipment 20 and the gas turbine equipment 38. A certain total actual power generation amount W is compared with a target total power generation amount Wo (S508). Here, if the total actual power generation amount W and the target total power generation amount Wo match (or can be regarded as matching), the amount of power equal to the amount determined when calculating the predicted total demand power Wdo is water electrolyzed. It supplies to the apparatus 30 and the water treatment apparatus 4. That is, in the present embodiment, power corresponding to the equipment capacity is supplied to the water electrolysis apparatus 30 and a set amount of power (a quantity equal to or less than the equipment capacity) is supplied to the water treatment apparatus 4 (S509, S510).

  On the other hand, when it is determined in S508 that the total actual power generation amount W exceeds the target total power generation amount Wo and surplus power is generated, first, power equivalent to the equipment capacity is supplied to the water electrolysis device 30 (511), and surplus power is generated. It is determined whether the water tank 33 has a free capacity even if it is supplied to the water treatment device 4 (that is, whether or not power equal to or higher than the set value can be supplied to the water treatment device 4) (S512). When it is determined that the water tank 33 has free capacity, it is determined whether or not the facility capacity of the water treatment device 4 is not exceeded even if the entire surplus power is supplied (S513). If it is determined that the facility capacity of the water treatment device 4 is not exceeded even if the entire surplus power is supplied, the entire surplus power is supplied to the water treatment device 4 (S514). On the other hand, if the water tank 33 has a free capacity, but it is determined that if the entire surplus power is supplied, it exceeds the equipment capacity of the water treatment device 4, power equivalent to the equipment capacity is supplied to the water treatment device 4. The supplied power is adjusted (S515), and the remaining power is supplied to the electric boiler 17 (S517). If it is determined in S512 that determines whether or not the water tank 33 has a free capacity, if it is determined that there is no free capacity, water equivalent to the amount consumed by the heavy oil reforming facility 23 is generated. Is supplied to the water treatment device 4 (S516), and the remaining power is supplied to the electric boiler 17 (S517). As described above, after power is supplied to each facility through S510, S514, or S517, the process returns to S501 if necessary, and the process is repeated. Otherwise, the process ends (S518). As described above, according to the present embodiment, even when the amount of wind power generation fluctuates and there is a power generation amount that exceeds prediction, the fluctuation can be absorbed to match the supply and demand of power.

  Here, when surplus power is supplied even if surplus power is supplied to the water treatment apparatus 4, power is supplied to the electric boiler 17. However, power is supplied to equipment in the other processing site 40. You may comprise as follows. Further, in the above, priority is given to the cost recovery for water electrolysis, and power is supplied in the order of the water electrolysis device 30, the water treatment device 4, and the electric boiler 17, but in this other order. Therefore, it is of course possible to supply power.

  In the above description, for the sake of simplicity, the water electrolysis apparatus 30 has been described as supplying power equivalent to the equipment capacity. However, when the hydrogen tank 35 is not empty, the heavy oil reforming equipment 23 is used. It is also possible to control so that only the electric power for producing hydrogen corresponding to the amount consumed in is supplied to the water electrolysis apparatus 30 and the remaining electric power is supplied to the power utilization equipment such as the water treatment apparatus 4. In this case, the electric power that could not be supplied to the water electrolysis apparatus 30 is added to the surplus electric power, and the processes from S512 to S517 may be performed. If comprised in this way, the plant operation suitable for an operating condition can be performed still more efficiently.

  Next, the effect of this embodiment will be described.

  A technology for reforming heavy oil is to use hydrogen produced from natural gas, but natural gas used as a raw material for this hydrogen may become difficult to secure in the heavy oil excavation area in the future. It is predicted. In addition, when a steam reforming method widely used as a method for producing hydrogen from natural gas is used, carbon dioxide, which is a global warming gas, is generated as a by-product.

  As a technology that can obtain hydrogen without using fossil resources such as natural gas and without generating carbon dioxide, there is one that produces hydrogen by electrolyzing water with electric power obtained from a wind power generator. is there. However, in wind power generation, since the wind speed is not constant and generated power fluctuates over time, it is difficult to balance power supply and demand.

  In contrast, in the present embodiment, the target total power generation amount to be generated by the wind power generation facility 20 and the gas turbine facility 38 by predicting the amount of power required for heavy oil reforming (predicted total demand power (Wdo)). The gas turbine so as to approach the power generation amount (GT target power generation amount (Wgo)) obtained based on the procedure for setting (Wo), the target total power generation amount (Wo), and the predicted power generation amount (Wwo) of the wind power generation facility 20 The procedure for operating the facility 38, the procedure for supplying a set amount of power to the water electrolysis apparatus 30, and the sum of the actual power generation of the wind power generation facility 20 and the gas turbine facility 38 (total actual power generation (W)) is the target total power generation. When surplus power is generated in excess of the amount (Wo), the surplus power is distributed to the power utilization equipment (water treatment device 4, electric boiler 17) based on a predetermined priority order, and generated in the water electrolysis device 30. Heavy hydrogen It is doing the heavy oil reforming by performing the procedure supplied to the reforming equipment 23. According to such a method, even when actual wind power generation occurs more than expected, the generated surplus power can be supplied to the power utilization equipment in the processing site 40 and absorbed, so that the power supply-demand balance The hydrogen used for heavy oil reforming can be obtained by electrolysis of water. Therefore, according to this Embodiment, the consumption of the natural gas used for heavy oil reforming can be reduced. Further, according to the present embodiment, since the electric power obtained by wind power generation can be used effectively, the output of the gas turbine equipment 38 can be reduced, and the consumption of natural gas that is the fuel of the gas turbine equipment 38 is reduced. be able to. Furthermore, according to the present embodiment, when producing hydrogen, carbon dioxide is not generated unlike the steam reforming method, so that the load on the environment can be reduced.

  Moreover, since the heavy oil reforming complex plant of the present embodiment supplies the electric power obtained by wind power generation to the water treatment device 4 and the electric boiler 17 used in the heavy oil reforming process. The energy efficiency of the plant can be improved. In particular, in this embodiment, the wastewater from the heavy oil reforming facility 23 is purified by the water treatment device 4 and reused as a hydrogen raw material used for heavy oil reforming. The load can be further reduced.

  Next, another control process by the monitoring control device 50 will be described.

  The control processing described below is different from the one shown in FIG. 6 (electrolysis priority mode) in which the electrolysis of water is prioritized and power is supplied to the water electrolysis device 30 preferentially, and the cost required for heavy oil reforming The power is supplied to each power utilization facility (water electrolysis device 30, water treatment device 4, electric boiler 17, etc.) (optimization mode). These control processes are changed by the operator on the monitoring control screen displayed on the display device 200 as described above with reference to FIG.

  When this processing is performed, the target total power generation amount setting unit 250 of the monitoring control device 50 uses power from the water electrolysis device 30, the water treatment device 4, the electric boiler 17, and the like prior to setting the predicted total demand power Wdo. The power supplied to the equipment is determined so that the cost required for heavy oil reforming is minimized. That is, the target total power generation amount setting unit 250 performs optimization calculation with cost as an objective function before setting the predicted total demand power Wdo. The unknown in this optimization calculation is the amount of substance generated in each of the power usage facilities 30, 4, and 17. The target total power generation amount setting unit 250 determines the power to be supplied to each facility 30, 4 and 17 based on the result of the optimization calculation, and calculates the predicted total demand power Wdo. Note that linear programming may be used for the optimization calculation. At this time, the operation restrictions such as the installation capacity and the amount of substance generation of each of the power use facilities 30, 4, and 17 can be handled as the constraint conditions of the linear programming method.

  The power supply control unit 270 calculates the predicted total demand power Wdo when the total actual power generation amount W matches the target total power generation amount Wo, or when the total actual power generation amount W substantially matches the predicted total power generation amount Wdo. The determined power is supplied to each of the power use facilities 30, 4, and 17. On the contrary, when surplus power is generated due to the total actual power generation amount W exceeding the target total power generation amount Wo, the generated amounts of the respective power use facilities 30, 4, 17 and the storage of the respective tanks 35, 37, 33 are stored. An optimization calculation with the cost as an objective function is performed with the amount as an unknown and taking into account the surplus power. As a result, the power supplied to each facility 30, 4, 17 is determined, and the power corresponding to the determined amount is supplied to each facility 30, 4, 17 by the power supply control unit 270. Note that linear programming may be used for the optimization calculation as in the previous case.

  FIG. 7 is a flowchart of another control process performed by the monitoring control device 50.

  The monitoring and control apparatus 50 performs the same processing as S500 to S502 in the case shown in FIG. 6 from S700 to S702, and calculates the predicted wind power generation amount Wwo (S700 to S702). Subsequently, the target total power generation amount setting unit 250 performs optimization calculation using cost as an objective function to determine the power to be supplied to the power usage facility, and then calculates the predicted total demand power Wdo (S703). A target total power generation amount Wo is set based on the total demand power Wdo (S704). When the target total power generation amount Wo is set in this way, the same processing as in the case of FIG. 6 is performed again, and the output of the gas turbine equipment 38 is controlled (S705 to S707).

  When the control timing of the gas turbine equipment 38 is not reached and when the gas turbine equipment 38 is controlled as described above, the power supply control unit 270 compares the total actual power generation amount W with the target total power generation amount Wo (S708). ). Here, when the total actual power generation amount W and the target total power generation amount Wo coincide (or can be regarded as coincident), the power determined when the predicted total demand power Wdo is calculated is the power usage facilities 30, 4, 4. 17 (S709).

  On the other hand, when it is determined in S708 that the total actual power generation amount W exceeds the target total power generation amount Wo and surplus power is generated, the generation amounts of the respective power use facilities 30, 4, 17 and the tanks 35, 37, 33 are generated. The power to be supplied to each facility 30, 4 and 17 is determined by the optimization calculation with the storage amount as unknown (S710), and the power corresponding to the determined amount is supplied to each facility 30, 4 and 17 ( S711). After power is supplied to each facility through S709 or S711 as described above, the process returns to S701 if necessary and the process is repeated. Otherwise, the process ends (S712).

  In this way, even if the control process as described above is performed, fluctuations in wind power generation can be absorbed to match the supply and demand of power, so the consumption of natural gas used for heavy oil reforming can be reduced. Can be reduced. In particular, according to this method, the cost required for heavy oil reforming can be minimized at all times, so that stable and inexpensive reformed oil can be obtained as compared with the case where priority is given to electrolysis. .

  Further, in the above description, the heavy oil reforming combined plant is configured by linking the wind power generation facility 20 and the gas turbine facility 38. However, the heavy oil reforming combined plant is configured in cooperation with a private power generation facility capable of output control other than the gas turbine facility. May be. Furthermore, in the above, an example was described in which hydrogen generated by electrolysis of water was used for reforming heavy oil such as oil sand, but the chemical synthesis process using the generated hydrogen for liquid fuel synthesis etc. You may apply to.

BRIEF DESCRIPTION OF THE DRAWINGS The whole block diagram of the heavy oil reforming complex plant which is embodiment of this invention. The system block diagram of the heavy oil reforming equipment in the heavy oil reforming complex plant which is the embodiment of the present invention. The hardware block diagram of the monitoring control apparatus in the heavy oil reforming complex plant which is embodiment of this invention. The functional block diagram of the monitoring control apparatus in the heavy oil reforming complex plant which is embodiment of this invention. The figure of the monitoring control screen displayed on the display apparatus in the heavy oil reforming complex plant which is embodiment of this invention. The flowchart of the control processing by the monitoring control apparatus in the heavy oil reforming complex plant which is embodiment of this invention. The flowchart of the other control processing by the monitoring control apparatus in the heavy oil reforming complex plant which is embodiment of this invention.

Explanation of symbols

4 Water treatment equipment 17 Electric boiler 20 Wind power generation equipment 23 Heavy oil reforming equipment 30 Water electrolysis equipment 33 Water tank 35 Hydrogen tank 37 Oxygen tank 38 Gas turbine equipment 50 Monitoring and control equipment 53 Gasification equipment 250 Target total power generation setting section 260 Gas turbine control unit 270 Power supply control unit Wo Target total power generation amount Wwo Predicted wind power generation amount Wdo Predicted total demand power Wgo GT target power generation amount W Total actual power generation amount

Claims (10)

Estimating the total power demand for heavy oil reforming and setting the target total power generation amount to be generated by wind power generation equipment and gas turbine equipment;
A procedure for operating the gas turbine equipment to approach the power generation amount obtained based on the target total power generation amount and the predicted power generation amount of the wind power generation facility;
A procedure for supplying a set amount of power to a water electrolyzer that electrolyzes water to generate hydrogen;
A procedure for distributing the surplus power to the power utilization equipment based on a predetermined priority when the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount and surplus power is generated. When,
And a procedure for supplying hydrogen generated by the water electrolysis apparatus to a heavy oil reforming facility. The heavy oil reforming method according to claim 1,
The power use facility includes a water treatment device for treating waste water from the heavy oil reforming facility,
When surplus power is generated when the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount, the surplus power is preferentially given to the water treatment device from the power use facility. The distribution procedure;
And a procedure for supplying the water treated by the water treatment device to the water electrolysis device. The heavy oil reforming method according to claim 2,
The power use facility includes a water treatment device for treating waste water from the heavy oil reforming facility,
When the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount and surplus power is generated, and the total amount of surplus power is supplied to the water treatment device, the water treatment device When it is predicted that the capacity exceeds the equipment capacity, the heavy equipment has a procedure of supplying power equivalent to the equipment capacity of the water treatment apparatus to the water treatment apparatus and supplying the remaining power to the power utilization equipment. Oil reforming method. In the heavy oil reforming method according to claim 3,
The power use facility further includes an electric boiler that generates steam to be used in the heavy oil reforming facility,
When the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount and surplus power is generated, and the total amount of surplus power is supplied to the water treatment device, the water treatment device When it is predicted that the capacity exceeds the equipment capacity, the power equivalent to the equipment capacity of the water treatment device is supplied to the water treatment device, and the remaining power is supplied to the electric boiler;
And a procedure for supplying water vapor generated in the electric boiler to the heavy oil reforming facility. The heavy oil reforming method according to claim 2,
The power use facility includes a water treatment device for treating waste water from the heavy oil reforming facility,
When the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount, surplus power is generated, and when the surplus power is supplied to the water treatment device, the water treatment device generates When the amount of stored water is predicted to exceed a set value, the power for generating water corresponding to the amount of consumption in the heavy oil reforming facility is supplied to the water treatment device, and the remaining power is supplied to the power A method for reforming heavy oil, characterized by comprising a procedure for supplying to a use facility. The heavy oil reforming method according to claim 1,
The heavy oil reforming method, wherein a set amount of electric power supplied to the water electrolyzer is an amount corresponding to a capacity of the water electrolyzer. We decided to minimize the cost required for heavy oil reforming to supply power to multiple power utilization facilities including water electrolyzers that electrolyze water to generate hydrogen. Estimating the demand power and setting the target total power generation amount to be generated by the wind power generation equipment and gas turbine equipment,
A procedure for operating the gas turbine equipment to approach the power generation amount obtained based on the target total power generation amount and the predicted power generation amount of the wind power generation facility;
When the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility substantially matches the target total power generation amount, the power determined in the procedure for setting the target total power generation amount is supplied to the plurality of power use facilities. Supply procedure;
When surplus power is generated when the sum of the actual power generation amount of the wind power generation facility and the gas turbine facility exceeds the target total power generation amount, the cost required for heavy oil reforming is minimized by taking the surplus power into consideration. A procedure for supplying power to the plurality of power utilization facilities so that
And a procedure for supplying hydrogen generated by the water electrolysis apparatus to a heavy oil reforming facility. Wind power generation facilities that generate wind power,
A gas turbine facility for generating electricity with combustion gas;
A water electrolyzer that electrolyzes water to generate hydrogen and oxygen;
A hydrogen tank for storing hydrogen from the water electrolyzer,
Heavy oil reforming equipment that reforms heavy oil using hydrogen from this hydrogen tank;
A power utilization facility that uses electricity to generate substances to be supplied to the heavy oil reforming facility; and
A target total power generation setting unit that sets a target total power generation amount to be generated by the wind power generation equipment and the gas turbine equipment by predicting the total demand power required for heavy oil reforming, the target total power generation amount and the wind power A gas turbine control unit that operates the gas turbine facility so as to approach the power generation amount obtained based on the predicted power generation amount of the power generation facility, and supplies a set amount of power to the water electrolysis device, and the wind power generation facility and the A power supply control unit that distributes the surplus power to a power utilization facility based on a predetermined priority when the sum of the actual power generation amount of the gas turbine facility exceeds the target total power generation amount and surplus power is generated. A heavy oil reforming complex plant comprising a control device. In the heavy oil reforming combined plant according to claim 8,
The heavy oil reforming combined plant, wherein the water electrolysis apparatus has an equipment capacity determined based on an annual operating rate of the wind power generation equipment. In the heavy oil reforming combined plant according to claim 8,
An oxygen tank for storing oxygen from the water electrolysis device;
A heavy oil reforming combined plant comprising a gasification device that gasifies heavy oil by mixing oxygen and heavy oil from the oxygen tank.

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