Basic chemical starting material composition, marking substance for carbon neutral confirmation, and analysis device, certification system, production method, analysis method, and certification method for basic chemical starting material composition

Abstract

A basic chemical starting material composition according to the present invention contains a recycled basic chemical starting material and a marking substance.

Description

Basic chemical raw material compositions, marking substances for carbon-neutral confirmation, analytical devices, authentication systems, manufacturing methods, analysis methods, and authentication methods for basic chemical raw material compositions

[0001] The present invention relates to a basic chemical raw material composition, a marking substance for carbon-neutral confirmation, and an analytical device, authentication system, manufacturing method, analytical method, and authentication method for a basic chemical raw material composition.

[0002] From the perspective of creating a resource-circulating society, there is a need for circular use, such as recycling used natural resources, in order to reduce consumption and make effective use of limited natural resources such as fossil fuels and to curb the increase in waste.

[0003] Basic chemical raw materials (basic chemicals) produced from fossil fuels contain olefins and are used to manufacture plastics, etc. In order to reduce the environmental burden and make effective use of natural resources, plastic recycling technologies are being developed to recover used plastics, such as molded products after use and plastic dregs and waste generated during the molding process of molded products, as plastic waste (waste plastic), and recycle them into basic chemical raw materials, etc., for reuse in plastics.

[0004] As a technology for recycling such plastics, for example, the use of recycled plastic films containing chemical tags having wavelength spectral profiles that can be linked to and identified as product information of the recycled plastic films as recycled raw materials has been disclosed (see, for example, Patent Document 1).

[0005] Japanese Patent Application Laid-Open No. 2023-41656

[0006] However, Patent Document 1 does not disclose a method for recycling petroleum-derived basic chemical raw materials such as ethylene, propylene, etc. When using basic chemical raw materials, it is important to be able to distinguish between petroleum-derived basic chemical raw materials and recycled basic chemical raw materials in order to determine whether the basic chemical raw materials are produced by a carbon-neutral (CN) method and to understand the proportion of the basic chemical raw materials used.

[0007] An object of one aspect of the present invention is to provide a basic chemical raw material composition that, when using basic chemical raw materials, makes it easy to know that the basic chemical raw materials being used are carbon-neutral basic chemical raw materials.

[0008] The present invention provides a means for solving the above-mentioned problems, comprising the following features. [1] A basic chemical raw material composition comprising a recycled basic chemical raw material and a marking substance. [2] The basic chemical raw material composition according to claim 1, which comprises a virgin basic chemical raw material. [3] The basic chemical raw material composition according to [1] or [2], wherein the difference in boiling point between the recycled basic chemical raw material and the marking substance is 15°C or less. [4] The basic chemical raw material composition according to any one of [1] to [3], wherein the recycled basic chemical raw material comprises at least one of an olefin and an aromatic compound. [5] The basic chemical raw material composition according to [4], wherein the olefin is a lower olefin. [6] The basic chemical raw material composition according to any one of [1] to [5], wherein the marking substance is a rare gas. [7] The basic chemical raw material composition according to any one of [1] to [6], wherein the marking substance is xenon. [8] The basic chemical raw material composition according to [7], wherein the recycled basic chemical raw material is ethylene. [9] The basic chemical raw material composition according to [7], wherein the marking substance immobilizes the basic chemical raw material with deuterium, １３

[10] The basic chemical raw material composition according to any one of [1] to [8], wherein at least one of C is labeled.

[10] The basic chemical raw material composition according to any one of [1] to [9], wherein the content of the marking substance is 0.2 ppm by mass to 1000 ppm by mass.

[11] A marking substance for carbon-neutral confirmation.

[12] A basic chemical raw material composition comprising the marking substance for carbon-neutral confirmation according to

[11] and a recycled basic chemical raw material.

[13] The basic chemical raw material composition according to

[12] , wherein the marking substance for carbon-neutral confirmation is xenon.

[14] An analyzer for a basic chemical raw material composition, which analyzes the concentration of the marking substance in a basic chemical raw material composition comprising a basic chemical raw material and a marking substance.

[15] The analyzer for a basic chemical raw material composition according to

[14] , which has a recovery section for recovering a portion of the basic chemical raw material composition as a sample.

[16] A basic chemical raw material composition authentication system comprising: an analysis unit that analyzes the concentration of the marking substance in a basic chemical raw material composition containing a basic chemical raw material and a marking substance; a comparison unit that compares the concentration of the marking substance obtained by the analysis unit with the concentration of the marking substance when the marking substance is added to the basic chemical raw material; and a calculation unit that calculates the ratio of virgin basic chemical raw material to recycled basic chemical raw material.

[17] A method for producing a basic chemical raw material composition, comprising mixing a marking substance with a basic chemical raw material produced from an organic substance as a raw material, to produce a basic chemical raw material composition containing the basic chemical raw material and the marking substance.

[18] A method for analyzing a basic chemical raw material composition, comprising analyzing the concentration of the marking substance in a basic chemical raw material composition containing a basic chemical raw material and a marking substance.

[19] The method for analyzing a basic chemical raw material composition according to

[18] , comprising a recovery step of recovering a portion of the basic chemical raw material composition as a sample.

[20] A method for authenticating a basic chemical raw material composition, comprising: an analyzing step of analyzing the concentration of a marking substance in a basic chemical raw material composition containing a basic chemical raw material and a marking substance; a comparing step of comparing the concentration of the marking substance obtained by the analyzing step with the concentration of the marking substance when the marking substance is added to the basic chemical raw material; and a calculating step of calculating the ratio of virgin basic chemical raw materials to recycled basic chemical raw materials.

[0009] When using basic chemical raw materials, the basic chemical raw material composition according to one embodiment of the present invention makes it easy to know that the basic chemical raw materials used are carbon-neutral basic chemical raw materials.

[0010] Fig. 1 is an explanatory diagram showing the flow of chemical recycling to which a basic chemical raw material composition according to an embodiment of the present invention is applied. Fig. 2 is a diagram showing an example of the configuration of an analysis device for a basic chemical raw material composition according to an embodiment of the present invention. Fig. 3 is a diagram showing the configuration of an authentication system for a basic chemical raw material composition according to an embodiment of the present invention.

[0011] Hereinafter, embodiments of the present invention will be described in detail. In this specification, unless otherwise specified, the term "to" indicating a range of values ​​means that the range includes the values ​​before and after it as the lower and upper limits.

[0012] The basic chemical raw material composition according to this embodiment can be easily understood to be a carbon-neutral basic chemical raw material composition because it contains recycled basic chemical raw materials and marking substances. Before explaining the basic chemical raw material composition according to this embodiment, the flow of chemical recycling to which the basic chemical raw material composition according to this embodiment is applied will be explained.

[0013] FIG. 1 is an explanatory diagram showing the flow of chemical recycling to which the basic chemical raw material composition according to this embodiment is applied. As shown in FIG. 1 , in chemical recycling to which the basic chemical raw material composition according to this embodiment is applied, plastics are produced by polymerizing basic chemical raw materials (virgin basic chemical raw materials) produced from fossil fuels such as naphtha. The plastics are used as plastic products after being molded or otherwise recovered as waste plastics. The recovered waste plastics are recycled into basic chemical raw materials and used again in the production of plastics, either mixed with virgin basic chemical raw materials in any appropriate ratio as recycled basic chemical raw materials or alone. The basic chemical raw material composition for CN confirmation according to this embodiment can be used as a recycled basic chemical raw material to determine whether the basic chemical raw materials used in the production of plastics are carbon-neutral basic chemical raw materials.

[0014] Carbon neutral generally refers to the fact that the amount of CO2 absorbed by biomass-derived materials (e.g., plants), which are renewable resources, during their growth process is approximately equal to the amount of CO2 ultimately emitted into the atmosphere through combustion or decomposition of the biomass-derived materials, and therefore does not substantially increase the amount of CO2 in the atmosphere. In this specification, carbon neutral refers to the fact that basic chemical raw materials are produced from waste plastics through chemical recycling, and the amount of CO2 generated when non-biomass-derived materials (substances derived from fossil fuels) are burned. ２ By reducing CO2 emissions from fossil fuel-based materials and sustaining the cycle of recycling plastics, ２ This means that a significant amount of waste plastics will not be emitted into the atmosphere. Therefore, the more waste plastics are used as raw materials for basic chemicals and the less natural resource-derived materials are used as raw materials, the more CO2 emissions can be suppressed. ２ Not only does it offset the amount of CO2 emissions and recovery, ２ This may include capturing more carbon than is emitted (so-called carbon negative).

[0015] <Basic Chemical Raw Material Composition> The basic chemical raw material composition according to this embodiment will be described. The basic chemical raw material composition according to this embodiment contains a basic chemical raw material and a marking substance. Other components may be contained as appropriate optional components, or may contain components that are inevitably contained. The basic chemical raw material composition is not particularly limited, and may be either a gas fluid or a liquid, although a gas fluid is preferred.

[0016] In this specification, a basic chemical raw material refers to a substance consisting of hydrocarbons or a compound containing hydrocarbons that is produced using organic matter as the main raw material, preferably a monomer, and preferably a gaseous substance at room temperature and normal pressure. Examples of basic chemical raw materials include olefins and aromatic compounds. Examples of olefins include lower olefins having 2 to 8 carbon atoms. Examples of lower olefins having 2 to 8 carbon atoms include ethylene, propylene, 1-butene, 2-butene, isobutene, butadiene, pentene, isoprene, and cyclopentadiene. Examples of aromatic compounds include benzene, toluene, o-xylene, m-xylene, p-xylene, ethylbenzene, and styrene. These may be used alone or in combination of two or more.

[0017] The basic chemical raw materials may be only recycled basic chemical raw materials or may be a mixture containing recycled basic chemical raw materials and virgin basic chemical raw materials.

[0018] The boiling point of the basic chemical raw material is preferably −150° C. to 0° C. at normal pressure.

[0019] The organic matter is an olefin-containing organic substance that is typically processed in various refineries or chemical plants, such as oil refineries, naphtha crackers, and plastic recycling facilities. The organic matter may be derived from fossil fuels, such as petroleum-derived naphtha, crude oil, or natural gas, or plastic waste derived from basic chemical raw materials produced using fossil fuels.

[0020] A marking substance is a gaseous substance that does not react with basic chemical raw materials during normal use of the basic chemical raw materials; more specifically, a substance that is inactive to the basic chemical raw materials within a predetermined temperature range (e.g., 0°C to 1200°C) and does not decompose itself. Furthermore, a marking substance is a substance that is removed when the basic chemical raw materials are polymerized, etc. Examples of marking materials that contain a marking substance include substances or compounds that contain a marking element. Examples of marking elements include rare gases, such as xenon. These may be used alone or in combination of two or more types.

[0021] As described above, the marking substance is a gaseous substance that does not react with the basic chemical raw materials during normal use of the basic chemical raw materials. Therefore, when the basic chemical raw material composition according to this embodiment contains recycled basic chemical raw materials, the marking substance can function as a marking substance for carbon neutrality confirmation.

[0022] The marking material is made from basic chemical raw materials such as deuterium, １３ The labeling may be performed by substituting some or all of the hydrogen atoms in the basic chemical raw material with deuterium, or by substituting some or all of the hydrogen atoms in the basic chemical raw material with deuterium. １２ C １３ The idea is to replace it with C and use it as a marker.

[0023] The content of the marking substance is not particularly limited and may be any amount appropriate depending on the type of basic chemical raw material, etc. For example, when the marking substance is a rare gas, the content may be 0.2 ppm by mass to 1000 ppm by mass relative to the basic chemical raw material composition according to this embodiment. When the marking substance is a basic chemical raw material labeled with deuterium, the content of the marking substance may be 300 ppm by mass to 10000 ppm by mass relative to the basic chemical raw material composition according to this embodiment. When the marking substance is １３ In the case of a basic chemical raw material labeled with C, the content of the marking substance may be 2 to 10 mass% relative to the basic chemical raw material composition according to this embodiment. If the content of the marking substance is within the above range, when analyzing the basic chemical raw material composition according to this embodiment, it is possible to more reliably analyze whether or not the basic chemical raw material composition according to this embodiment contains a marking substance without mixing an excess of the marking substance into the basic chemical raw material. Therefore, it is possible to increase the analytical accuracy of the marking substance content while reducing the cost required for analyzing the marking substance content in the basic chemical raw material composition according to this embodiment.

[0024] The difference in boiling point between the basic chemical raw material and the marking substance is preferably small from the viewpoint of preventing the marking substance from being separated from the basic chemical raw material during the process, but may be adjusted appropriately depending on the types of the basic chemical raw material and the marking substance. The difference in boiling point between the basic chemical raw material and the marking substance is preferably 15°C or less, more preferably 12°C or less, and even more preferably 10°C or less. The boiling point is measured at atmospheric pressure.

[0025] The difference in melting point between the basic chemical raw material and the marking substance is preferably small from the viewpoint of preventing the marking substance from being separated from the basic chemical raw material during the process, but may be adjusted appropriately depending on the types of the basic chemical raw material and the marking substance, etc. The difference in melting point between the basic chemical raw material and the marking substance is preferably 100°C or less, more preferably 80°C or less, and even more preferably 70°C or less.

[0026] The basic chemical raw material composition according to this embodiment contains a basic chemical raw material and a marking substance, and therefore, it is easy to determine whether the basic chemical raw material is a basic chemical raw material produced by a carbon-neutral method. Therefore, when using the basic chemical raw material, it is easy to know that the basic chemical raw material to be used is a carbon-neutral basic chemical raw material.

[0027] In the basic chemical raw material composition according to this embodiment, if the marking substance is a substance that is inactive to the basic chemical raw materials and does not decompose itself, it is removed when the basic chemical raw materials are polymerized, etc. Therefore, when the basic chemical raw material composition according to this embodiment is used to polymerize the basic chemical raw materials to produce a synthetic resin, the marking substance can be easily removed without performing an additional step for its removal, thereby suppressing any impact on the quality of the basic chemical raw materials.

[0028] Also, the marking material may deuterate or deuterate basic chemical raw materials. １３ When a substance is labeled with C, it is chemically no different from a normal basic chemical raw material, and therefore, even if it remains in a product obtained using the basic chemical raw material, it does not affect the quality of the product.

[0029] When the basic chemical raw material composition according to this embodiment contains recycled basic chemical raw materials produced by a carbon-neutral method as the basic chemical raw materials, it can be used as a recycled basic chemical raw material composition containing recycled basic chemical raw materials and a marking substance. Therefore, the basic chemical raw material composition according to this embodiment can be provided as a basic chemical raw material composition that makes it easy to know that the basic chemical raw materials used are carbon-neutral basic chemical raw materials. Furthermore, even if the marking substance is a substance that is inactive to the basic chemical raw materials and does not decompose itself, it is possible to decompose the basic chemical raw materials by deuterium or １３ Even if the basic chemical raw material composition is labeled with C, the presence or absence of the marking substance can be easily identified by a conventionally known method. Therefore, when the basic chemical raw material composition according to this embodiment contains virgin basic chemical raw materials derived from fossil fuels and recycled basic chemical raw materials as basic chemical raw materials, the content ratio of the recycled basic chemical raw materials contained in the basic chemical raw material composition can be analyzed simply, efficiently, and accurately while reducing the burden and cost required for analysis. Therefore, by using the basic chemical raw material composition according to this embodiment, the content ratio of the recycled basic chemical raw materials, which are carbon-neutral raw materials contained in the basic chemical raw material composition, can be appropriately controlled as basic chemical raw materials, and the CO emissions to the environment can be reduced. ２ The basic chemical raw material composition according to this embodiment can be used to produce basic chemical raw materials while protecting the environment by reducing emissions, etc. Therefore, the basic chemical raw material composition according to this embodiment can be effectively used to produce sustainable basic chemical raw materials from basic chemical raw materials.

[0030] That is, since basic chemical raw materials are recyclable, circulative products, in order to use basic chemical raw materials as raw materials for resin products, the basic chemical raw materials must be certified, for example, in accordance with the International Sustainability and Carbon Certification (ISCC) regulations. By using a basic chemical raw material composition, the blending ratio of fossil fuel-derived virgin basic chemical raw materials and recycled basic chemical raw materials used as basic chemical raw materials can be properly determined, and therefore, it can be effectively used to obtain certification such as ISCC.

[0031] <Method for producing basic chemical raw material composition> A method for producing a basic chemical raw material composition according to this embodiment will be described. The method for producing a basic chemical raw material composition according to this embodiment is a method for producing a basic chemical raw material composition using an organic substance as a raw material, and includes a step (mixing step) of using plastic as at least a part of the organic substance as a raw material and mixing a marking substance into the resulting recycled basic chemical raw material in the process from the organic substance to plastic.

[0032] As shown in Figure 1, the process of producing plastics from organic matter refers to the period from pyrolysis of organic matter such as naphtha and plastics to produce basic chemical raw materials, to polymerization of the produced basic chemical raw materials to produce plastics. Marking substances may be mixed into the regeneration process in which recycled basic chemical raw materials are obtained from waste plastics.

[0033] Furthermore, a marking substance may be mixed with the obtained recycled basic chemical raw materials. When basic chemical raw materials are obtained from plastics, they are often obtained as a mixture of multiple components including by-products, so the marking substance may be mixed with the mixture as is, or the marking substance may be mixed after separating the mixture into components such as ethylene and propylene.

[0034] The method for mixing the recycled basic chemical raw materials and the marking material is not particularly limited, and a general mixing method or addition method may be used.

[0035] The method for producing a basic chemical raw material composition according to this embodiment includes the mixing step described above, and thus can easily produce a basic chemical raw material composition containing a recycled basic chemical raw material and a marking substance. By using the produced basic chemical raw material composition, it is easy to determine whether the basic chemical raw material is a virgin basic chemical raw material or a recycled basic chemical raw material, and therefore it is easy to know that the basic chemical raw material used is a carbon-neutral basic chemical raw material.

[0036] <Analyzing device for basic chemical raw material composition> The analyzing device for basic chemical raw material composition according to this embodiment will be described. Note that the basic chemical raw material composition according to this embodiment is the same as the basic chemical raw material composition according to the above-described embodiment except that it contains the basic chemical raw materials as recycled basic chemical raw materials, and therefore details of the configuration of the basic chemical raw material composition will be omitted.

[0037] 2 is a diagram showing an example of the configuration of an analyzer for a basic chemical raw material composition according to this embodiment. As shown in Fig. 1, an analyzer for a basic chemical raw material composition 10 according to this embodiment has a recovery unit 11, an analysis unit 12, and an output unit 13.

[0038] The recovery unit 11 recovers a part of the basic chemical raw material composition containing the basic chemical raw material and the marking substance as a sample.

[0039] The method for recovering a sample from the basic chemical raw material composition is not particularly limited as long as it allows the sample to be recovered from the basic chemical raw material composition, and a general recovery method may be used.

[0040] The analysis unit 12 analyzes the concentration of the marking material contained in the sample collected by the collection unit 11.

[0041] The method for analyzing the concentration of the marking substance in the basic chemical raw material composition may be any method that can analyze the marking substance in the basic chemical raw material composition, and may be any common analytical method depending on the type of marking substance used. For example, the marking substance contained in the basic chemical raw material composition can be detected using X-ray fluorescence analysis, chemical element analysis, spectroscopic analysis, gas chromatography, mass spectrometry, etc.

[0042] The output unit 13 outputs the analysis results of the concentration of the marking material contained in the sample analyzed by the analysis unit 12 to a display device such as a monitor.

[0043] (Method for Analyzing Basic Chemical Raw Material Composition) The method for analyzing a basic chemical raw material composition according to this embodiment can be performed using the above-described apparatus 10 for analyzing a basic chemical raw material composition.

[0044] In the method for analyzing a basic chemical raw material composition according to this embodiment, a part of the basic chemical raw material composition is collected as a sample in the collection unit 11 (collection step).

[0045] Next, the concentration of the marking material contained in the collected sample is analyzed in the analysis unit 12 (analysis step).

[0046] Next, the output unit 13 outputs the analysis results of the concentration of the marking material contained in the sample, which are analyzed in the analysis step, to a display device such as a monitor (output step).

[0047] The basic chemical raw material composition analysis device 10 has an analysis unit 12, and can analyze the concentration of the marking substance in the basic chemical raw material composition. By analyzing the concentration of the marking substance, the content of recycled basic chemical raw materials contained as basic chemical raw materials can be easily determined. Therefore, the basic chemical raw material composition analysis device 10 can easily determine the content of recycled basic chemical raw materials used as basic chemical raw materials, and therefore, it can be easily determined that the basic chemical raw materials used are carbon-neutral basic chemical raw materials.

[0048] <Basic Chemical Raw Material Composition Authentication System> A basic chemical raw material composition authentication system according to this embodiment will be described. Fig. 3 is a diagram showing the configuration of a basic chemical raw material composition authentication system according to this embodiment. As shown in Fig. 3, a basic chemical raw material composition authentication system 20 has a recovery unit 21, an analysis unit 22, a comparison unit 23, a calculation unit 24, and an output unit 25, and calculates the content rate of recycled basic chemical raw materials contained as basic chemical raw materials.

[0049] The recovery unit 21 recovers a part of the basic chemical raw material composition containing the basic chemical raw material and the marking substance as a sample. The configuration of the recovery unit 21 is the same as that of the recovery unit 11 of the above-mentioned basic chemical raw material composition analysis device 10, so details are omitted.

[0050] The base chemical feedstocks may include virgin base chemical feedstocks as well as recycled base chemical feedstocks.

[0051] The analysis unit 22 analyzes the concentration of the marking substance contained in the sample collected by the collection unit 21. The configuration of the analysis unit 22 is similar to that of the analysis unit 12 of the above-mentioned basic chemical raw material composition analysis device 10, and therefore details thereof will be omitted.

[0052] The comparison unit 23 compares the concentration of the marking substance when the marking substance is added to the basic chemical raw material with the concentration of the marking substance obtained by the analysis unit 22. Specifically, the comparison unit 23 calculates the ratio ((M1-Mb) / M2) of the value (M1-Mb) obtained by subtracting the background concentration Mb of the marking substance in nature from the concentration M1 of the marking substance when the marking substance is added to the basic chemical raw material to the concentration M2 of the marking substance obtained by the analysis unit 22.

[0053] The closer (M1-Mb) / M2 is to 1.0, the greater the content of marking material contained in the basic chemical raw materials, meaning a greater content of recycled basic chemical raw materials. On the other hand, the smaller (M1-Mb) / M2 is below 1.0, the smaller the content of marking material contained in the basic chemical raw materials, meaning a greater amount of virgin basic chemical raw materials is added, meaning a lower proportion of recycled basic chemical raw materials. This means a smaller content of recycled basic chemical raw materials.

[0054] The calculation unit 24 calculates the ratio of virgin basic chemical raw materials to recycled basic chemical raw materials based on the comparison result between the concentration of the marking substance and the amount of the marking substance added. The calculation unit 24 calculates the ratio of virgin basic chemical raw materials to recycled basic chemical raw materials from the ratio ((M1-Mb) / M2) of the concentration M2 of the marking substance obtained by the analysis unit 22 to the value (M1-Mb) obtained by subtracting the background concentration of the marking substance in nature from the concentration M1 of the marking substance when the marking substance is added to the basic chemical raw materials.

[0055] The closer (M1-Mb) / M2 is to 1.0, the greater the proportion of recycled basic chemical raw materials contained as basic chemical raw materials compared to virgin basic chemical raw materials. On the other hand, the smaller (M1-Mb) / M2 is below 1.0, the less recycled basic chemical raw materials are contained as basic chemical raw materials compared to virgin basic chemical raw materials. Therefore, the magnitude of the ratio ((M1-Mb) / M2) can be used to determine the proportion of recycled basic chemical raw materials contained.

[0056] The output unit 25 outputs the analysis results of the ratio between virgin basic chemical raw materials and recycled basic chemical raw materials calculated by the calculation unit 24 to a display device such as a monitor.

[0057] (Basic Chemical Raw Material Composition Authentication Method) The basic chemical raw material composition authentication method according to this embodiment can be performed using the basic chemical raw material composition authentication system 20 described above.

[0058] In the method for authenticating a basic chemical raw material composition according to this embodiment, a part of the basic chemical raw material composition is collected as a sample in the collection unit 21 (collection step).

[0059] Next, the analysis unit 22 analyzes the concentration of the marking material contained in the sample collected by the collection unit 11 (analysis step).

[0060] Next, the comparison unit 23 compares the concentration of the marking substance when the marking substance is added to the basic chemical raw material with the concentration of the marking substance obtained by the analysis unit 22 (comparison step).

[0061] Next, the calculation unit 24 calculates the ratio of virgin basic chemical raw materials to recycled basic chemical raw materials based on the result of comparing the concentration of the marking material with the amount of added marking material (calculation step).

[0062] Next, the output unit 25 outputs the analysis results of the ratio between the virgin basic chemical raw materials and the recycled basic chemical raw materials calculated by the calculation unit 24 to a display device such as a monitor (output step).

[0063] The basic chemical raw material composition authentication system 20 can calculate the contents of virgin basic chemical raw materials and recycled basic chemical raw materials contained as basic chemical raw materials in the basic chemical raw material composition by comprising a recovery unit 21, an analysis unit 22, a comparison unit 23, a calculation unit 24, and an output unit 25. The basic chemical raw material composition authentication system 20 can calculate the contents of basic chemical raw materials produced by carbon-neutral methods in the basic chemical raw material composition, and therefore can authenticate the content ratio of carbon-neutral basic chemical raw materials with high accuracy when using basic chemical raw materials.

[0064] Although the above-described embodiments have been described, they are presented as examples and the present invention is not limited to these embodiments. The above-described embodiments can be implemented in various other forms, and various combinations, omissions, substitutions, modifications, etc. can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the inventions and their equivalents as set forth in the claims.

[0065] 10 Basic chemical raw material composition analysis device 11, 21 Recovery section 12, 22 Analysis section 13, 25 Output section 20 Basic chemical raw material composition authentication system 23 Comparison section 24 Calculation section

Claims

1. A base chemical raw material composition comprising recycled base chemical raw materials and a marking material.

2. The base chemical feedstock composition of claim 1, comprising virgin base chemical feedstocks.

3. The basic chemical raw material composition according to claim 1 or 2, wherein the difference in boiling point between the recycled basic chemical raw material and the marking substance is 15°C or less.

4. The basic chemical raw material composition according to claim 1 or 2, wherein the recycled basic chemical raw material comprises at least one of an olefin and an aromatic compound.

5. The base chemical feedstock composition of claim 4, wherein the olefin is a lower olefin.

6. The basic chemical raw material composition of claim 1 or 2, wherein the marking material is a noble gas.

7. The basic chemical raw material composition of claim 1 or 2, wherein the marking material is xenon.

8. The base chemical feedstock composition of claim 7, wherein the recycled base chemical feedstock is ethylene.

9. The marking material converts basic chemical raw materials into deuterium, １３ 3. The basic chemical raw material composition according to claim 1, wherein the basic chemical raw material composition is labeled with at least one of C.

10. The basic chemical raw material composition according to claim 1 or 2, wherein the content of the marking substance is 0.2 ppm by mass to 1000 ppm by mass.

11. Carbon neutrality confirmation marking material.

12. A basic chemical raw material composition comprising the carbon-neutral confirmation marking material of claim 11 and recycled basic chemical raw materials.

13. The basic chemical raw material composition of claim 12, wherein the carbon-neutral confirmation marking material is xenon.

14. An apparatus for analyzing a basic chemical raw material composition, which analyzes the concentration of a marking material in a basic chemical raw material composition containing a basic chemical raw material and a marking material.

15. The apparatus for analyzing a basic chemical raw material composition according to claim 14, further comprising a recovery section for recovering a portion of the basic chemical raw material composition as a sample.

16. A basic chemical raw material composition authentication system comprising: an analysis unit that analyzes the concentration of a marking substance in a basic chemical raw material composition containing a basic chemical raw material and a marking substance; a comparison unit that compares the concentration of the marking substance obtained by the analysis unit when the marking substance is added to the basic chemical raw material; and a calculation unit that calculates the ratio of virgin basic chemical raw materials to recycled basic chemical raw materials.

17. A method for producing a basic chemical raw material composition, comprising mixing a marking substance with a basic chemical raw material produced from an organic substance, and producing a basic chemical raw material composition containing the basic chemical raw material and the marking substance.

18. A method for analyzing a basic chemical raw material composition, comprising analyzing the concentration of a marking material in a basic chemical raw material composition comprising a basic chemical raw material and a marking material.

19. The method for analyzing a basic chemical raw material composition according to claim 18, further comprising a recovery step of recovering a portion of the basic chemical raw material composition as a sample.

20. A method for authenticating a basic chemical raw material composition, comprising: an analysis step of analyzing the concentration of a marking substance in a basic chemical raw material composition containing a basic chemical raw material and a marking substance; a comparison step of comparing the concentration of the marking substance obtained by the analysis step with the concentration of the marking substance when the marking substance is added to the basic chemical raw material; and a calculation step of calculating the ratio of virgin basic chemical raw materials to recycled basic chemical raw materials.