Method and device for determining carbon emission reduction in organic solid waste treatment process

Abstract

The invention provides a method and a device for determining carbon emission reduction in an organic solid waste treatment process, and relates to the technical field of carbon emission. The method comprises the following steps: detecting the sulfur content and the carbon content in the organic solid waste; determining a pyrolysis temperature value in the organic solid waste treatment process; according to the sulfur content and the pyrolysis temperature value, the emission equivalent of sulfide generated after the organic solid waste is treated is determined; determining the carbon sequestration amount of biochar generated after the organic solid waste is treated; and carrying out difference calculation on the carbon content, the carbon fixation amount of the biochar and the emission equivalent of the sulfide to obtain the carbon emission reduction amount of the organic solid waste in the treatment process. According to the method and the device, the influence of sulfides generated by pyrolysis during solid waste treatment on carbon emission reduction can be reduced, the accuracy of the carbon emission reduction is improved, and carbon footprint accurate accounting and low-carbon process optimization are facilitated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of carbon emissions, and particularly to a method and device for determining carbon emission reduction amounts during the treatment of organic solid waste. Background Art

[0002] Organic solid waste consists of mixed materials, such as biomass, plastics, oily sludge, sludge, etc. During the treatment of organic solid waste, carbon flow tracking of solid waste treatment is usually carried out by calculating carbon emission reduction amounts. Due to the complex components in organic solid waste, gases with strong greenhouse effect potentials other than carbon dioxide and methane are also generated during the treatment of organic solid waste. When calculating carbon accounting, the content of these gases with strong greenhouse effect potentials will be included in the carbon emission reduction amounts, affecting the true carbon equivalent, and severely restricting the accurate accounting of carbon footprint and the optimization of low-carbon processes. Summary of the Invention

[0003] The present disclosure aims to at least partly solve one of the technical problems in the related art.

[0004] To this end, a first aspect embodiment of the present disclosure proposes a method for determining carbon emission reduction amounts during the treatment of organic solid waste, including:

[0005] Detecting the sulfur content and carbon content in the organic solid waste;

[0006] Determining the pyrolysis temperature value during the treatment of the organic solid waste;

[0007] Determining the emission equivalent of sulfides generated after the treatment of the organic solid waste according to the sulfur content and the pyrolysis temperature value;

[0008] Determining the carbon sequestration amount of biochar generated after the treatment of the organic solid waste;

[0009] Performing a difference calculation on the carbon content, the carbon sequestration amount of biochar, and the emission equivalent of sulfides to obtain the carbon emission reduction amount during the treatment of the organic solid waste.

[0010] In some embodiments of the present disclosure, it further includes: determining the carbon emissions from pyrolysis energy consumption and the carbon emissions from alternative power generation during the treatment of the organic solid waste; performing a difference calculation on the carbon emission reduction amount and the carbon emissions from pyrolysis energy consumption to obtain the first carbon emission reduction amount during the treatment of the organic solid waste; performing a summation calculation on the first carbon emission reduction amount and the carbon emissions from alternative power generation to obtain the second carbon emission reduction amount during the treatment of the organic solid waste.

[0011] In some embodiments of the present disclosure, according to the sulfur content and the pyrolysis temperature value, the emission equivalent of sulfides is determined through the following formula:

[0012]

[0013] f 热解温度 = 0.8*e^{-0.01(T - 400)}

[0014] wherein, is the emission equivalent of the sulfide, C 硫 is the sulfur content, η 固硫 is the sulfur fixation efficiency, is the global warming potential of the sulfide, and T is the pyrolysis temperature value.

[0015] In some embodiments of the present disclosure, detecting the sulfur content in the organic solid waste includes: detecting the sulfur element content by laser-induced breakdown spectroscopy.

[0016] In some embodiments of the present disclosure, determining the carbon sequestration amount of the biochar produced after treating the organic solid waste includes: determining the biochar yield produced after treating the organic solid waste; multiplying the biochar yield by the biochar stability correction factor to obtain the carbon sequestration amount of the biochar.

[0017] In some embodiments of the present disclosure, it further includes: respectively generating Merkle root hash values corresponding to the sulfur content, the carbon content, and the pyrolysis temperature value; storing the Merkle root hash values in the consortium blockchain.

[0018] The second aspect of the embodiments of the present disclosure provides a device for determining the carbon emission reduction amount in the process of treating organic solid waste, including:

[0019] A detection module for detecting the sulfur content and the carbon content in the organic solid waste;

[0020] A first determination module for determining the pyrolysis temperature value in the process of treating the organic solid waste;

[0021] A second determination module for determining the emission equivalent of the sulfide produced after treating the organic solid waste according to the sulfur content and the pyrolysis temperature value;

[0022] A third determination module for determining the carbon sequestration amount of the biochar produced after treating the organic solid waste;

[0023] A fourth determination module for calculating the difference between the carbon content, the carbon sequestration amount of the biochar, and the emission equivalent of the sulfide to obtain the carbon emission reduction amount in the process of treating the organic solid waste.

[0024] The third aspect of the embodiments of the present disclosure provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0025] The memory stores computer-executable instructions;

[0026] The processor executes the computer-executable instructions stored in the memory to implement the method described in the foregoing first aspect.

[0027] The method for determining the carbon emission reduction amount in the process of organic solid waste treatment provided by the present disclosure can reduce the influence of sulfides generated by pyrolysis during solid waste treatment on the carbon emission reduction amount, improve the accuracy of the carbon emission reduction amount, and is conducive to accurate carbon footprint accounting and low-carbon process optimization.

[0028] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, wherein:

[0030] Figure 1 is a schematic flowchart of a method for determining the carbon emission reduction amount in the process of organic solid waste treatment provided by an embodiment of the present disclosure;

[0031] Figure 2 is a schematic flowchart of a device for determining the carbon emission reduction amount in the process of organic solid waste treatment provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present disclosure and should not be construed as limiting the present disclosure.

[0033] Specifically, the method and device for determining the carbon emission reduction amount in the process of organic solid waste treatment according to the embodiments of the present disclosure will be described below with reference to the drawings.

[0034] Figure 1 is a schematic flowchart of a method for determining the carbon emission reduction amount in the process of organic solid waste treatment provided by an embodiment of the present disclosure. As Figure 1 shown, the method for determining the carbon emission reduction amount in the process of organic solid waste treatment may include the following steps:

[0035] Step 101, detecting the sulfur content and carbon content in the organic solid waste.

[0036] In some embodiments of the present disclosure, the sulfur element content (kgS / kg) may be detected by laser-induced breakdown spectroscopy.

[0037] In addition, in some embodiments, the composition of organic solid waste can be detected in real time through a near-infrared spectroscopy (NIR) module (wavelength range 900 - 1700 nm), such as the oil content rate of oily sludge, the moisture content of sludge, the type of plastic, etc. Identification accuracy: the oil content rate of oily sludge is ±2%, and the recognition rate of plastic type (PE / PET / PP) is ≥95%. In addition to sulfur content, heavy metals (Cr, Pb) can also be detected through a laser-induced breakdown spectroscopy (LIBS) module (accuracy ±0.1%), and online calibration is supported (automatically corrected every 4 hours). The CO2 concentration of the pyrolysis tail gas generated during the treatment of organic solid waste is detected through an NDIR-CO2 sensor, with a range of 0 - 20% and an accuracy of ±1.5%. In order to prevent the tar vapor generated from the pyrolysis of oily sludge from contaminating the optical sensor lens, in this embodiment, a silicon nitride coated lens can be equipped on the NDIR-CO2 sensor to resist tar pollution. The NDIR-CO2 sensor has a built-in temperature and humidity compensation algorithm (error < ±3% when the humidity > 70%). The H2S concentration of the pyrolysis tail gas generated during the treatment of organic solid waste is detected through a MEMS-H2S sensor, with a range of 0 - 1000 ppm and an accuracy of ±2%, and ultrasonic self-cleaning is supported (triggered every 2 hours). In order to increase the lifespan of the sensor in a high-humidity and highly corrosive environment, in this embodiment, the MEMS-H2S sensor can use a ceramic-based anti-corrosion electrode.

[0038] Step 102, determine the pyrolysis temperature value during the treatment of organic solid waste.

[0039] Among them, the pyrolysis temperature during the treatment of organic solid waste can be obtained through a temperature sensor.

[0040] Step 103, according to the sulfur content and the pyrolysis temperature value, determine the emission equivalent of sulfides generated after the treatment of organic solid waste.

[0041] In a possible implementation, the emission equivalent of sulfides can be determined through the following formula:

[0042]

[0043] f 热解温度 = 0.8 * e^(-0.01(T - 400))

[0044] Among them, is the emission equivalent of sulfides (kgCO2 / kg), C 硫 is the sulfur content, η 固硫 is the sulfur fixation efficiency (a function of the Ca / S molar ratio), is the global warming potential of sulfides, and T is the pyrolysis temperature value (°C).

[0045] Step 104, determine the carbon sequestration amount of the biochar generated after the treatment of organic solid waste.

[0046] In a possible implementation, the biochar yield C 生物炭 (kgCO2 / kg) produced after the treatment of organic solid waste can be determined, and the biochar yield C 生物炭 is multiplied by the biochar stability correction factor CF 稳定 to obtain the carbon sequestration amount of biochar.

[0047] Step 105: Calculate the difference between the carbon content, the carbon sequestration amount of biochar, and the emission equivalent of sulfide to obtain the carbon emission reduction amount during the treatment of organic solid waste.

[0048] That is to say, subtract the carbon sequestration amount of biochar and the emission equivalent of sulfide from the carbon content to obtain the carbon emission reduction amount.

[0049] By implementing the embodiments of the present disclosure, the influence of sulfide generated by pyrolysis during the treatment of solid waste on the carbon emission reduction amount can be reduced, the accuracy of the carbon emission reduction amount can be improved, and it is beneficial to the accurate accounting of the carbon footprint and the optimization of low-carbon processes.

[0050] In some embodiments of the present disclosure, when calculating the carbon emission reduction amount, the influence of the carbon emissions from pyrolysis energy consumption and the carbon emissions from alternative power generation during the treatment of organic solid waste can be further considered to further improve the accuracy of the carbon emission reduction amount. In one implementation, the carbon emissions from pyrolysis energy consumption C 能耗 and the carbon emissions from alternative power generation C 油气替代 during the treatment of organic solid waste can be determined. Calculate the difference between the carbon emission reduction amount and the carbon emissions from pyrolysis energy consumption to obtain the first carbon emission reduction amount during the treatment of organic solid waste, and calculate the sum of the first carbon emission reduction amount and the carbon emissions from alternative power generation to obtain the second carbon emission reduction amount during the treatment of organic solid waste. The calculation of the second carbon emission reduction amount can refer to the following formula:

[0051]

[0052] where C 减排 is the second carbon emission reduction amount (kgCO2 / kg), C 输入 is the carbon content (kgCO2 / kg), C 生物炭 ×CF 稳定 is the carbon sequestration amount of biochar, is the emission equivalent of sulfide, C 能耗 is the carbon emissions from pyrolysis energy consumption (kgCO2 / kg), C 油气替代 is the carbon emissions from alternative power generation (kgCO2 / kg), is the carbon emission reduction amount, is the first carbon emission reduction amount. The carbon emissions from pyrolysis energy consumption C 能耗 represents the carbon emissions during the production process, and the carbon emissions from alternative power generation C 油气替代Represents the carbon emissions reduction achieved by substituting pyrolysis oil or pyrolysis gas generated during the biochar production process for fossil fuels.

[0053] Optionally, in some embodiments of the present disclosure, in order to accurately monitor the carbon emissions reduction in each link of the organic solid waste treatment process, a spatial mapping relationship between the material flow path and the sensor layout points can be established (such as the carbon flow trajectory from the inlet to the outlet of the pyrolysis furnace). In each link of the solid waste treatment process, the Figure 1 carbon emissions reduction determination method described in the embodiments is used to obtain the carbon emissions reduction corresponding to each treatment link. To ensure the time consistency of the carbon flow calculation, in some embodiments, timestamp alignment can be performed, and the data of each sensor can be synchronized through the 5G network (time difference < 10ms).

[0054] Optionally, in some embodiments of the present disclosure, in order to improve the data credibility and avoid the risk of data tampering, the Merkle root hash values corresponding to the sulfur content, carbon content, and pyrolysis temperature values can be generated respectively, and the Merkle root hash values can be stored in the Hyperledger Fabric consortium blockchain for blockchain evidence storage to provide a complete carbon flow evidence chain. In addition, the hash values of detection data such as the oil content rate of sludge in organic solid waste, heavy metal content, CO2 concentration of pyrolysis tail gas, and H2S concentration of pyrolysis tail gas can also be generated and stored in the consortium blockchain. The key data (such as the pyrolysis furnace emission record) is synchronized to the Ethereum main network every 10 minutes to ensure immutability.

[0055] Optionally, in some embodiments of the present disclosure, it also supports third-party institutions (such as VCS certification institutions) to query the carbon flow data through the API to verify the authenticity of the emissions reduction. Provide a data tampering risk rating (based on the number of blockchain consensus nodes and data consistency).

[0056] Optionally, in some embodiments of the present disclosure, each batch of biochar is attached with an NFC tag, and scanning the code can trace the carbon data of the entire life cycle.

[0057] Figure 2 It is a schematic flowchart of a device for determining carbon emissions reduction in the process of treating organic solid waste provided by the embodiments of the present disclosure. As Figure 2 shown, the device for determining carbon emissions reduction in the process of treating organic solid waste may include: a detection module 201, a first determination module 202, a second determination module 203, a third determination module 204, and a fourth determination module 205.

[0058] Among them, the detection module 201 is used to detect the sulfur content and carbon content in the organic solid waste.

[0059] The first determination module 202 is used to determine the pyrolysis temperature value in the process of treating the organic solid waste.

[0060] A second determination module 203, configured to determine the emission equivalent of sulfides generated after the organic solid waste is processed according to the sulfur content and the pyrolysis temperature value.

[0061] A third determination module 204, configured to determine the carbon sequestration amount of the biochar generated after the organic solid waste is processed.

[0062] A fourth determination module 205, configured to calculate the difference between the carbon content and the carbon sequestration amount of the biochar and the emission equivalent of the sulfides to obtain the carbon emission reduction amount during the processing of the organic solid waste.

[0063] In some embodiments of the present disclosure, on the basis of Figure 2 the illustrated embodiments, the carbon emission reduction amount determination device in the organic solid waste treatment process further includes a fifth determination module. Among them, the fifth determination module is used to: determine the pyrolysis energy consumption carbon emission amount and the alternative power generation carbon emission amount during the processing of the organic solid waste; calculate the difference between the carbon emission reduction amount and the pyrolysis energy consumption carbon emission amount to obtain the first carbon emission reduction amount during the processing of the organic solid waste; calculate the sum of the first carbon emission reduction amount and the alternative power generation carbon emission amount to obtain the second carbon emission reduction amount during the processing of the organic solid waste.

[0064] In some embodiments of the present disclosure, the third determination module 204 is specifically configured to: determine the biochar yield generated after the organic solid waste is processed; perform a multiplication operation on the biochar yield and the biochar stability correction factor to obtain the carbon sequestration amount of the biochar.

[0065] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0066] To implement the above embodiments, the present disclosure also proposes an electronic device, including: a processor, and a memory communicatively connected to the processor; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to implement the method provided in the foregoing embodiments.

[0067] To implement the above embodiments, the present disclosure also proposes a computer-readable storage medium, in which computer execution instructions are stored, and when the computer execution instructions are executed by a processor, they are used to implement the method provided in the foregoing embodiments.

[0068] To implement the above embodiments, the present disclosure also proposes a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the method provided in the foregoing embodiments.

[0069] In the descriptions of the foregoing embodiments, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0071] Any process or method description shown in the flowchart or described in other ways herein may be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a customized logic function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present disclosure pertain.

[0072] The logic and / or steps represented in the flowchart or otherwise described herein can, for example, be considered as a definitional sequence list of executable instructions for implementing logical functions, and can be embodied specifically in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in conjunction with these instruction execution systems, apparatuses, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection portion having one or more wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable medium on which the program can be printed, as the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or otherwise processing as appropriate, and then storing it in a computer memory.

[0073] It should be understood that various parts of the present disclosure can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having suitable combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0074] Those of ordinary skill in the art of this technology can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0075] In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing module, may exist separately as individual physical units, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0076] The above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disc, etc. Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for determining carbon emission reduction in the process of organic solid waste treatment, characterized in that, It includes the following steps: Detect the sulfur content and carbon content in the organic solid waste; Determine the pyrolysis temperature value in the treatment process of the organic solid waste; According to the sulfur content and the pyrolysis temperature value, determine the emission equivalent of sulfide generated after the treatment of the organic solid waste; Determine the carbon sequestration amount of biochar generated after the treatment of the organic solid waste; Perform a difference calculation on the carbon content, the carbon sequestration amount of biochar, and the emission equivalent of sulfide to obtain the carbon emission reduction amount of the organic solid waste in the treatment process.

2. The method according to claim 1, characterized in that It further includes: Determine the carbon emissions from pyrolysis energy consumption and the carbon emissions from alternative power generation in the treatment process of the organic solid waste; Perform a difference calculation on the carbon emission reduction amount and the carbon emissions from pyrolysis energy consumption to obtain the first carbon emission reduction amount of the organic solid waste in the treatment process; Perform a summation calculation on the first carbon emission reduction amount and the carbon emissions from alternative power generation to obtain the second carbon emission reduction amount of the organic solid waste in the treatment process.

3. The method according to claim 1, characterized in that, According to the sulfur content and the pyrolysis temperature value, determine the emission equivalent of sulfide through the following formula: f 热解温度 = 0.8*e^(-0.01(T - 400)) Among them, is the emission equivalent of the sulfide, C sulfur is the sulfur content, and η sulfur fixation is the sulfur fixation efficiency. is the global warming potential of the sulfide, and T is the pyrolysis temperature value.

4. The method according to claim 1, characterized in that, The detection of the sulfur content in the organic solid waste includes: Detect the sulfur element content by laser-induced breakdown spectroscopy.

5. The method according to claim 1, wherein, The determination of the carbon sequestration amount of biochar generated after the treatment of the organic solid waste includes: Determine the biochar yield generated after the treatment of the organic solid waste; Perform a multiplication operation on the biochar yield and the biochar stability correction factor to obtain the carbon sequestration amount of biochar.

6. The method according to any one of claims 1-5, characterized in that, It further includes: Generate the Merkle root hash values corresponding to the sulfur content, the carbon content, and the pyrolysis temperature value respectively; Store the Merkle root hash values in the consortium blockchain.

7. An apparatus for determining carbon emission reduction amount in the process of organic solid waste treatment, characterized in that, It includes: A detection module for detecting the sulfur content and carbon content in the organic solid waste; A first determination module for determining the pyrolysis temperature value in the treatment process of the organic solid waste; A second determination module for determining the emission equivalent of sulfide generated after the treatment of the organic solid waste according to the sulfur content and the pyrolysis temperature value; A third determination module for determining the carbon sequestration amount of biochar generated after the treatment of the organic solid waste; A fourth determination module for performing a difference calculation on the carbon content, the carbon sequestration amount of biochar, and the emission equivalent of sulfide to obtain the carbon emission reduction amount of the organic solid waste in the treatment process.

8. The device according to claim 7, characterized in that, The device further includes a fifth determination module; wherein, the fifth determination module is used for: Determine the carbon emissions from pyrolysis energy consumption and the carbon emissions from alternative power generation in the treatment process of the organic solid waste; Perform a difference calculation on the carbon emission reduction amount and the carbon emissions from pyrolysis energy consumption to obtain the first carbon emission reduction amount of the organic solid waste in the treatment process; Perform a summation calculation on the first carbon emission reduction amount and the carbon emissions from alternative power generation to obtain the second carbon emission reduction amount of the organic solid waste in the treatment process.

9. The device according to claim 7, characterized in that, The third determination module is specifically used for: Determine the biochar yield generated after the treatment of the organic solid waste; Perform a multiplication operation on the biochar yield and the biochar stability correction factor to obtain the carbon sequestration amount of biochar.

10. An electronic device, characterized in that, It includes: A processor and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1-6.

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