Hydrocarbon compound production system, method for producing hydrocarbon compound

Abstract

To provide a hydrocarbon compound production system for producing a hydrocarbon compound which can control an environmental load reduction effect derived from a raw material.SOLUTION: A hydrocarbon compound production system includes a hydrogen production device for producing hydrogen, a carbon dioxide supply device for supplying carbon dioxide, and a hydrocarbon compound production device for producing a hydrocarbon compound from the hydrogen produced by the hydrogen production device and the carbon dioxide supplied from the carbon dioxide supply device, and classifies an environmental load level of the hydrocarbon compound produced by the hydrocarbon compound production device on the basis of at least any one environment index of the hydrogen produced by the hydrogen production device and the carbon dioxide supplied from the carbon dioxide supply device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a production system and a production method for producing a hydrocarbon compound such as methanol, and in particular to a hydrocarbon compound production system and a hydrocarbon compound production method capable of managing the effect of reducing the environmental load derived from raw materials. [Background technology]

[0002] Hydrogen is expected to be one of the measures to reduce the environmental burden, but there are cases where carbon dioxide (CO2) is emitted during the production process. For this reason, there has been active discussion in the economic and industrial circles about how hydrogen can be produced in a way that has a small environmental burden and is efficient, and what kind of hydrogen should be produced and used. There is a consideration of focusing on the power source of the production process, such as electricity, and classifying the produced hydrogen according to the environmental burden.

[0003] For example, hydrogen produced by electrolyzing water using electricity derived from renewable energy sources is called green hydrogen. Hydrogen produced through the Carbon dioxide Capture and Storage (CCS) process without releasing carbon dioxide into the atmosphere can be considered to emit no CO2 from the perspective of hydrogen production, and is called blue hydrogen. Hydrogen made from fossil fuels, in which CO2 is released into the atmosphere during the production process, is called grey hydrogen.

[0004] Background of this technical field includes, for example, a technique such as Patent Document 1. Patent Document 1 discloses a "method for efficiently producing methanol from lower hydrocarbons such as natural gas." [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-219068 A Summary of the Invention [Problem to be solved by the invention]

[0006] As mentioned above, in reducing the environmental impact, it is important to take into consideration the origins of raw materials and products and the manufacturing processes.

[0007] However, for example, the origin of hydrogen, which is the raw material used to synthesize carbon recycled methanol (the ratio of fossil fuel-derived to non-fossil fuel-derived hydrogen), changes over time, making the origin of the produced methanol (the ratio of fossil fuel-derived to non-fossil fuel-derived hydrogen) unclear, and the environmental impact reduction effect of the produced methanol is unclear.

[0008] Therefore, by understanding the origin of the environmental impact of the hydrogen used in methanol production, the environmental impact reduction effect of the produced methanol will become clear.

[0009] The above-mentioned Patent Document 1 does not take into consideration the origin of the hydrogen, nor does it mention anything about classifying hydrogen based on the environmental indicators as described above.

[0010] Therefore, an object of the present invention is to provide a hydrocarbon compound production system capable of managing the effect of reducing the environmental load originating from raw materials in a production system for producing hydrocarbon compounds, and a method for producing hydrocarbon compounds using the same. [Means for solving the problem]

[0011] In order to solve the above problems, the present invention comprises a hydrogen production device that produces hydrogen, a carbon dioxide supplying device that supplies carbon dioxide, and a hydrocarbon compound production device that produces hydrocarbon compounds from the hydrogen produced by the hydrogen production device and the carbon dioxide supplied from the carbon dioxide supplying device, and is characterized in that the environmental load level of the hydrocarbon compounds produced by the hydrocarbon compound production device is classified based on an environmental indicator of at least one of the hydrogen produced by the hydrogen production device and the carbon dioxide supplied from the carbon dioxide supplying device.

[0012] The present invention also provides a method for producing hydrocarbon compounds using hydrogen and carbon dioxide as raw materials, which is characterized in that the environmental load level of the produced hydrocarbon compounds is classified based on an environmental index of at least one of the raw materials, hydrogen and carbon dioxide. Effect of the Invention

[0013] According to the present invention, it is possible to realize a hydrocarbon compound production system capable of managing the effect of reducing the environmental load originating from raw materials in a production system for producing hydrocarbon compounds, and a method for producing hydrocarbon compounds using the same.

[0014] This makes it possible to classify the produced hydrocarbon compounds according to their environmental load levels.

[0015] Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of a hydrocarbon compound production system according to a first embodiment of the present invention. [Diagram 2] FIG. 1 is a diagram showing a schematic configuration of a hydrocarbon compound production system according to a second embodiment of the present invention. [Diagram 3] FIG. 1 is a diagram showing a schematic configuration of a hydrocarbon compound production system according to a third embodiment of the present invention. [Figure 4] FIG. 1 is a diagram showing a schematic configuration of a hydrocarbon compound production system according to a fourth embodiment of the present invention. [Diagram 5] FIG. 1 is a diagram showing a schematic configuration of a hydrocarbon compound production system according to a fifth embodiment of the present invention. [Figure 6] FIG. 11 is a diagram showing an environmental index table according to the fifth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same components are designated by the same reference numerals, and detailed description of overlapping parts will be omitted. EXAMPLES

[0018] A hydrocarbon compound production system according to a first embodiment of the present invention and a method for producing a hydrocarbon compound using the same will be described with reference to Fig. 1. Fig. 1 is a diagram showing a schematic configuration of the hydrocarbon compound production system according to the present embodiment.

[0019] In this embodiment, the basic concept of the present invention is explained.

[0020] As mentioned above, the origin of the hydrogen used to synthesize carbon recycled methanol (the ratio of fossil fuel-derived to non-fossil fuel-derived hydrogen) changes over time, so the origin of the produced methanol (the ratio of fossil fuel-derived to non-fossil fuel-derived hydrogen) may become unclear.

[0021] Examples of hydrogen origins include hydrogen produced solely from renewable energy electricity (including electricity deemed to be renewable), hydrogen produced using grid electricity, stored hydrogen, by-product hydrogen, hydrogen with CCS, and a combination of the former.

[0022] In order to clarify the origin of produced hydrogen, the following can be considered: (1) Measure the change over time in the origin of the hydrogen supplied and calculate the origin of the produced methanol, (2) Calculate the origin of the methanol in the methanol storage tank, (3) Make it possible to trade methanol according to its origin, and add a premium or carbon tax according to its origin.

[0023] As shown in FIG. 1 , the methanol production system 1 of this embodiment mainly comprises a hydrogen production device 4 that produces hydrogen 7, a carbon dioxide supplying device 5 that supplies carbon dioxide 8, and a methanol production device 2 that produces methanol 9 from the hydrogen 7 produced by the hydrogen production device 4 and the carbon dioxide 8 supplied from the carbon dioxide supplying device 5.

[0024] The hydrogen production device 4 generates hydrogen 7 using power supplied from a power source 6 .

[0025] In addition to the system that supplies hydrogen 7 generated by the hydrogen production device 4, the methanol production device 2 is also connected to a system that supplies hydrogen 7d generated through a CO2 capture and storage process (CCS).It is therefore possible to produce methanol 9 using hydrogen 7d generated through a CO2 capture and storage process (CCS) without using the hydrogen 7 generated by the hydrogen production device 4.

[0026] Methanol 9 produced in the methanol production apparatus 2 is temporarily stored in the storage apparatus 3.

[0027] Here, the methanol production system 1 of this embodiment classifies the environmental load level of the methanol 9 produced by the methanol production apparatus 2 based on the environmental index of at least one of the hydrogen 7 produced by the hydrogen production apparatus 4 and the carbon dioxide 8 supplied from the carbon dioxide supply apparatus 5. When using hydrogen 7d produced in association with a CO2 capture and storage process (CCS), the environmental load level of the methanol 9 is classified based on the environmental index of the hydrogen 7d.

[0028] By classifying the environmental impact level of the product methanol 9 based on the environmental indicators of the raw materials hydrogen 7 and 7d and carbon dioxide 8, it is possible to classify the methanol 10 supplied (shipped) to the outside from the storage device 3 according to its environmental impact level. EXAMPLES

[0029] A hydrocarbon compound production system according to a second embodiment of the present invention and a method for producing a hydrocarbon compound using the same will be described with reference to Fig. 2. Fig. 2 is a diagram showing a schematic configuration of the hydrocarbon compound production system according to the second embodiment.

[0030] In this embodiment, an example of a system configuration in which a control device 11 is further provided in addition to the configuration of embodiment 1 (FIG. 1) will be described.

[0031] 2, the methanol production system 1 of this embodiment is equipped with a control device 11, which monitors information on the power source 6 of the hydrogen production device 4, information on the carbon dioxide supply source 13 of the carbon dioxide supply device 5, information on hydrogen 7 generated by the hydrogen production device 4, information on hydrogen 7d generated with a CO2 capture and storage process (CCS), information on carbon dioxide 8 supplied from the carbon dioxide supply device 5, information on methanol 9 generated in the methanol production device 2, and information on methanol 10 supplied (shipped) to the outside from the storage device 3. Each piece of information is an environmental index that takes into account the origin of the raw materials and products and the production process.

[0032] The control device 11 classifies the methanol 10 supplied (shipped) from the storage device 3 to the outside according to the environmental load level based on each monitored information (environmental index), and outputs (displays) the result on the output device 12 to notify the administrator. The output device 12 can also be incorporated in the methanol production system 1. EXAMPLES

[0033] A hydrocarbon compound production system according to a third embodiment of the present invention and a method for producing a hydrocarbon compound using the same will be described with reference to Fig. 3. Fig. 3 is a diagram showing a schematic configuration of the hydrocarbon compound production system according to the third embodiment.

[0034] In this embodiment, an example of a system configuration in which hydrogen 7 is produced using electric power from a plurality of power sources in the configuration of embodiment 1 (FIG. 1) will be described.

[0035] In the methanol production system 1 of this embodiment, as shown in FIG. 3, the hydrogen production device 4 is configured to include a hydrogen production device 4a that produces hydrogen 7a using power supplied from a power source 6a, a hydrogen production device 4b that produces hydrogen 7b using power supplied from a power source 6b, and a hydrogen production device 4c that produces hydrogen 7c using power supplied from a power source 6c.

[0036] As in Example 1 (FIG. 1), a system for supplying hydrogen 7d generated with a carbon capture and storage process (CCS) is also connected.

[0037] The power source 6a is electricity derived from renewable energy, and the hydrogen 7a generated by the hydrogen production device 4a is green hydrogen. Note that renewable energy also includes electricity that is considered to be renewable energy, so-called deemed renewable energy electricity.

[0038] The power source 6b is electricity derived from grid power, and the hydrogen 7b produced in the hydrogen production device 4b is a mixture of green hydrogen, blue hydrogen, and grey hydrogen.

[0039] The power source 6c is electricity generated using fossil fuels, and the hydrogen 7c generated by the hydrogen production device 4c is gray hydrogen. In the process of generating electricity from the power source 6c, carbon dioxide is released into the atmosphere.

[0040] In addition, hydrogen produced with carbon capture and storage (CCS) is blue hydrogen.

[0041] The methanol production system 1 of this embodiment is configured as described above, and can determine the environmental index of the hydrogen 7 generated by the hydrogen production device 4 based on the information of the power sources 6a to 6c of the hydrogen production devices 4a to 4c. EXAMPLES

[0042] A hydrocarbon compound production system according to a fourth embodiment of the present invention and a method for producing a hydrocarbon compound using the same will be described with reference to Fig. 4. Fig. 4 is a diagram showing a schematic configuration of the hydrocarbon compound production system according to the fourth embodiment.

[0043] In this embodiment, an example of a system configuration in which carbon dioxide 8 is supplied using a plurality of carbon dioxide supply devices in the configuration of embodiment 1 (FIG. 1) will be described.

[0044] In the methanol production system 1 of this embodiment, as shown in FIG. 4, the carbon dioxide supplying device 5 is configured to include a carbon dioxide supplying device 5a that temporarily stores carbon dioxide supplied from a carbon dioxide supply source 13a and supplies carbon dioxide 8a, a carbon dioxide supplying device 5b that temporarily stores carbon dioxide supplied from a carbon dioxide supply source 13b and supplies carbon dioxide 8b, and a carbon dioxide supplying device 5c that temporarily stores carbon dioxide supplied from a carbon dioxide supply source 13c and supplies carbon dioxide 8c.

[0045] The carbon dioxide source 13a is atmospheric CO2 captured from the atmosphere.

[0046] The carbon dioxide source 13b is biomass fuel-derived CO2 generated by burning biomass fuel.

[0047] The carbon dioxide source 13c is fossil fuel-derived CO2 generated by burning fossil fuels.

[0048] The methanol production system 1 of this embodiment is configured as described above, and can determine the environmental index of the carbon dioxide 8 supplied from the carbon dioxide supplying device 5, based on the information of the carbon dioxide supply sources 13a to 13c of the carbon dioxide supplying devices 5a to 5c. EXAMPLES

[0049] A hydrocarbon compound production system according to a fifth embodiment of the present invention and a method for producing a hydrocarbon compound using the same will be described with reference to Figures 5 and 6. Figure 5 is a diagram showing a schematic configuration of the hydrocarbon compound production system of this embodiment. Figure 6 is a diagram showing an environmental index table of this embodiment.

[0050] In this embodiment, an example of a system configuration including all of the configurations described in the first embodiment (FIG. 1) to the fourth embodiment (FIG. 4) will be described.

[0051] As shown in Fig. 5, the methanol production system 1 of this embodiment is configured to include all the components described in Example 1 (Fig. 1) to Example 4 (Fig. 4). Each component and its function are as described in each example, and duplicated explanations will be omitted.

[0052] In FIG. 5, the dashed dotted lines indicating the information monitored by the control device 11 as in FIG. 2 are omitted in order to make the configuration easier to understand.

[0053] [Definition and Effects of Environmental Indicators] The environmental index table of this embodiment will be described with reference to Fig. 6. In Fig. 6, Hydrogen A indicates green hydrogen, Hydrogen B indicates blue hydrogen, and Hydrogen C indicates grey hydrogen.

[0054] As shown in FIG. 6, in this embodiment, the environmental load level of the produced methanol 9 is classified based on the environmental indexes of both the raw materials, hydrogen 7 and carbon dioxide 8.

[0055] For example, methanol 9 produced from "hydrogen A (green hydrogen)" and "atmospheric CO2(a)" is classified as "CH3OH(Aa)." Similarly, methanol of nine different origins is classified by combining the three classifications of hydrogen 7, "hydrogen A (green hydrogen)," "hydrogen B (blue hydrogen)," and "hydrogen C (gray hydrogen)," with the three classifications of carbon dioxide 8, "atmospheric CO2(a)," "biomass fuel-derived CO2(b)," and "fossil fuel-derived CO2(c)."

[0056] In this way, by classifying the environmental impact level of the produced methanol using the origins of the raw materials, hydrogen and carbon dioxide, the environmental value of methanol becomes clear.

[0057] The origin of the hydrogen 7 and carbon dioxide 8 supplied to the methanol production apparatus 2 may change over time.

[0058] In such a case, it is also possible to monitor the change over time of the environmental index of hydrogen 7 and the change over time of the environmental index of carbon dioxide 8 by the control device 11, and to determine the component ratio of methanol 9 in the storage device 3 based on the monitored change over time of the environmental index of hydrogen 7 and the environmental index of carbon dioxide 8. This makes it possible to recognize the origin of the methanol to be circulated. It is conceivable to install at least two or more storage devices 3 described in the above embodiment. For example, it is conceivable to install nine units in the combination shown in Fig. 6 so that hydrogen can be stored separately according to the origin of the raw hydrogen and CO2. Furthermore, if environmental value standards such as green hydrogen content are established in the future, it is conceivable to store the hydrogen separately in a storage device for methanol that satisfies the environmental standards and a storage device for other methanol.

[0059] The present invention is not limited to the above-mentioned embodiment, but includes various modified examples. For example, the above-mentioned embodiment has been described in detail to aid in understanding the present invention, and is not necessarily limited to those including all of the configurations described. It is also possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to add, delete, or replace a part of the configuration of each embodiment with another configuration. [Explanation of symbols]

[0060] 1...Methanol production system (hydrocarbon compound production system) 2...Methanol production equipment (hydrocarbon compound production equipment) 3. Storage device 4,4a,4b,4c…Hydrogen production equipment 5,5a,5b,5c…carbon dioxide supply device 6,6a,6b,6c…power source 7,7a,7b,7c,7d...Hydrogen 8, 8a, 8b, 8c...Carbon dioxide 9,10…Methanol 11...Control device 12...Output device 13,13a,13b,13c...Carbon dioxide source.

Claims

1. A hydrogen production device for generating hydrogen; A carbon dioxide supplying device that supplies carbon dioxide; a hydrocarbon compound production device that produces a hydrocarbon compound from the hydrogen produced by the hydrogen production device and the carbon dioxide supplied from the carbon dioxide supply device, A hydrocarbon compound production system, characterized in that the environmental load level of the hydrocarbon compounds produced by the hydrocarbon compound production apparatus is classified based on an environmental indicator of at least one of the hydrogen produced by the hydrogen production apparatus and the carbon dioxide supplied from the carbon dioxide supply apparatus.

2. The hydrocarbon compound production system according to claim 1, A hydrocarbon compound production system characterized in that the environmental indicators of the hydrogen produced by the hydrogen production device are classified into three types: hydrogen produced by electrolyzing water using electricity derived from renewable energy, hydrogen produced through a carbon dioxide capture and storage process, and hydrogen produced from fossil fuels, with carbon dioxide being released into the atmosphere during the production process.

3. The hydrocarbon compound production system according to claim 1, A hydrocarbon compound production system, characterized in that an environmental index of hydrogen produced by the hydrogen production device is determined based on information on a power source of the hydrogen production device.

4. The hydrocarbon compound production system according to claim 2 or 3, a storage device that stores the hydrocarbon compound produced by the hydrocarbon compound production apparatus; A control device that monitors changes over time in an environmental index of hydrogen generated by the hydrogen production device, The control device determines the component ratio of the hydrocarbon compounds in the storage device based on the change over time of the monitored environmental index of hydrogen.

5. The hydrocarbon compound production system according to claim 1, A hydrocarbon compound production system, comprising: a carbon dioxide supplying device that determines an environmental index of carbon dioxide supplied from the carbon dioxide supplying device based on information on a carbon dioxide supply source of the carbon dioxide supplying device.

6. The hydrocarbon compound production system according to claim 5, A hydrocarbon compound production system characterized in that the environmental indicators of the carbon dioxide supplied from the carbon dioxide supply device are classified into three types: carbon dioxide recovered from the atmosphere, carbon dioxide generated by the combustion of biomass fuel, and carbon dioxide generated by the combustion of fossil fuel.

7. The hydrocarbon compound production system according to claim 5 or 6, a storage device that stores the hydrocarbon compound produced by the hydrocarbon compound production apparatus; A control device that monitors a change over time in an environmental index of the carbon dioxide supplied from the carbon dioxide supply device, The control device determines the component ratio of the hydrocarbon compounds in the storage device based on the time-dependent change in the monitored environmental index of carbon dioxide.

8. A method for producing a hydrocarbon compound by producing a hydrocarbon compound using hydrogen and carbon dioxide as raw materials, comprising the steps of: A method for producing a hydrocarbon compound, comprising classifying the environmental load level of the produced hydrocarbon compound based on an environmental index of at least one of hydrogen and carbon dioxide, which are raw materials.

9. A method for producing a hydrocarbon compound according to claim 8, comprising the steps of: A method for producing hydrocarbon compounds, characterized in that the environmental indicators of the raw material hydrogen can be classified into three types: hydrogen produced by electrolyzing water using electricity derived from renewable energy sources, hydrogen produced through a process of capturing and storing carbon dioxide, and hydrogen produced from fossil fuels, with carbon dioxide being released into the atmosphere during the production process.

10. A method for producing a hydrocarbon compound according to claim 8, comprising the steps of: A method for producing a hydrocarbon compound, comprising determining an environmental index of hydrogen as a raw material based on information on a power source used in a process for producing the hydrogen as a raw material.

11. A method for producing a hydrocarbon compound according to claim 9 or 10, comprising the steps of: monitoring changes over time in environmental indicators of the raw material, hydrogen; A method for producing a hydrocarbon compound, comprising determining a component ratio in a storage device for storing the produced hydrocarbon compound based on the monitored change over time in the environmental index of hydrogen.

12. A method for producing a hydrocarbon compound according to claim 8, comprising the steps of: A method for producing a hydrocarbon compound, comprising determining an environmental index of carbon dioxide as a raw material based on information on a supply source of the carbon dioxide as a raw material.

13. A method for producing a hydrocarbon compound according to claim 12, comprising the steps of: A method for producing hydrocarbon compounds, characterized in that the environmental indicator of the raw material carbon dioxide is classified into three types: carbon dioxide recovered from the atmosphere, carbon dioxide generated by the combustion of biomass fuel, and carbon dioxide generated by the combustion of fossil fuel.

14. A method for producing a hydrocarbon compound according to claim 12 or 13, comprising the steps of: monitoring changes over time in an environmental indicator of the raw material, carbon dioxide; A method for producing a hydrocarbon compound, comprising determining a component ratio in a storage device for storing the produced hydrocarbon compound based on the monitored change over time in the environmental index of carbon dioxide.

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