CN-121998545-A - Full supply chain carbon management method and system for coupling carbon capture and sequestration of coal-fired power plant

CN121998545ACN 121998545 ACN121998545 ACN 121998545ACN-121998545-A

Abstract

The invention relates to the field of chain carbon management, and discloses a full supply chain carbon management method and system for coupling carbon capture and sequestration of a coal-fired power plant, which are used for providing reliable technical support for green transformation of the coal-fired power plant. The method comprises the steps of generating a global dynamic geological carbon potential field distribution map based on real-time working conditions and pre-evaluation geological attribute data of a sealing library, generating geological priority dispatching instructions for each batch of carbon dioxide according to the distribution map, creating and binding globally unique carbon asset digital identifications for the carbon dioxide when a conveying pipe network is injected, calculating geological sealing value data based on geological attribute and logistics information of a target sealing library after the target sealing library is injected, registering all data to a trusted carbon asset account book, and forming a permanent carbon removal asset record. According to the invention, safe and optimal scheduling is realized through the geological carbon potential field, and high-quality and high-price carbon asset is realized by using geological value-added factors.

Inventors

HE ZICHEN
CHEN YUNYONG
WANG DONG
Gong Mengjuan
JIN XUEXUE
LIU LINGGE
WU MINGZONG
MA XIAOFEI
JIA LIN
GUO YANLONG

Assignees

华电新疆准东五彩湾发电有限公司

Dates

Publication Date: 20260508
Application Date: 20251217

Claims (10)

1. The full supply chain carbon management method for coupling carbon capture and sequestration in the coal-fired power plant is characterized by comprising the following steps: Calculating and generating a global dynamic geological carbon potential field distribution map based on the real-time working condition data and the pre-evaluation geological attribute data of each repository; Generating a geological priority dispatching instruction for capturing and purifying each batch of compressed carbon dioxide from the coal-fired power plant according to the dynamic geological carbon potential field distribution diagram; Creating and binding a globally unique carbon asset digital identifier for carbon dioxide when the carbon dioxide is injected into a conveying pipe network according to the geological priority scheduling instruction; After carbon dioxide is injected into a target repository designated by the geological priority scheduling instruction, calculating geological sequestration value data of the batch of carbon dioxide based on geological attribute data of the target repository and logistics information recorded by the carbon asset digital identification; And registering and recording the carbon asset digital identifier, the complete logistics and sealing history and the geological sealing value data in a trusted carbon asset account book together to form a permanent carbon removal asset record.
2. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 1, comprising: Collecting real-time injection pressure and capacity occupancy rate of each sealing repository as real-time working condition data, and calling a cover layer sealing index and a mineral carbonation potential index obtained by pre-evaluation as geological attribute data to form a sealing repository basic data set; Processing the cap seal index and the mineral carbonation potential index in the repository base data set to generate normalized geological factors; Calculating a dynamic pressure factor based on the real-time injection pressure and capacity occupancy in the repository base dataset; weighting and synthesizing the normalized geological factors and the dynamic pressure factors, and generating geological carbon potential field unit values representing the current comprehensive situation of each repository; And performing visual rendering on the geological carbon potential field unit values of all the sealing banks on a space geographic information base map to generate a global dynamic geological carbon potential field distribution map.
3. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 2, comprising: responding to completion of capturing and purifying compression operation of carbon dioxide in a batch of coal-fired power plant, and generating a carbon batch list to be dispatched; According to the dynamic geological carbon potential field distribution diagram, sorting all available sealing banks according to the geological carbon potential of each characterized sealing bank, and generating a sealing bank preference list; Based on the capturing source position information in the carbon batch list to be scheduled and the repository preference list, carrying out path accessibility and capacity feasibility verification on the repository in the preference list one by combining real-time topology and state data of a conveying pipe network, and generating a feasible repository-path combination set; Comprehensively considering the path transportation cost of each combination in the feasible repository-path combination set and the sorting order of the target repository in the repository preference list, carrying out multi-objective weighing, and determining repository and conveying path combinations; And generating a geological priority scheduling instruction based on the combination of the comprehensive optimal sealing library and the conveying path.
4. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 3, comprising: Generating a carbon asset core identifier based on the unique identification of the batch, the capture source information and the timestamp at the moment when carbon dioxide begins to be injected into the transport pipe network; Binding a unique identification of a target repository in the geological priority scheduling instruction, a designated conveying path node sequence and an expected injection time window as initial metadata with the carbon asset core identifier to construct an initial digital twin body of the batch of carbon dioxide; in the process of carbon dioxide flowing through a conveying pipe network, acquiring the passing time, pressure and flow data of the carbon dioxide between each pipeline node and key equipment in real time, binding the real-time transportation data with the carbon asset core identifier, and updating the real-time transportation data to the digital twin body; Binding an injection start time, an initial injection pressure and the carbon asset core identifier when receiving a carbon dioxide injection start signal from a target repository, and updating the state of the digital twin into injection; When receiving the carbon dioxide injection completion confirmation signal from the target repository, binding the injection completion time, the accumulated injection quantity and the final injection pressure data with the carbon asset core identifier to generate a complete logistics history.
5. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 4, further comprising a transportation process integrity verification mechanism: Setting data verification points at each key node of a conveying pipe network, collecting pressure, flow and time stamp data of carbon dioxide batches flowing through the node, and generating a node verification data packet; Comparing each node verification data packet with the initial digital twin-body-bound expected conveying path node sequence to generate a path consistency verification report; Calculating the pressure retention rate and the flow stability of the carbon dioxide in the conveying process based on the continuous node pressure data and the flow data, and generating a transportation quality assessment index; synthesizing a path consistency check report and a transportation quality evaluation index to generate a transportation integrity certificate of the batch of carbon dioxide; binding the transportation integrity certification file with the carbon asset digital identifier, and updating the verification state of the digital twin body, and marking the transportation integrity certification file as transportation verified.
6. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 4, comprising: Determining sequestration benchmark value data for the batch of carbon dioxide based on current carbon market trade prices and policy subsidy criteria; Invoking pre-estimated geological attribute data of the target repository, and calculating and generating geological increment factors based on the cap layer closure index and the mineral carbonation potential index; Based on the complete logistics histories, extracting transportation distance, pressurization energy consumption and injection duration data, and calculating and generating comprehensive consumption factors; Multiplying the sealed reference value data by the geological increment factor, and subtracting the value damage corresponding to the comprehensive consumption factor to calculate geological sealed net value data; And generating a value accounting certificate together with the geological value-added factor and the key parameter of the comprehensive consumption factor according to the geological value-added data.
7. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 6, further comprising a value vouching mechanism: based on the value accounting certificate, extracting geological storage net value data and key parameters in the value accounting certificate to generate a standardized digital value certificate; Adding a unique anti-counterfeiting mark based on an encryption algorithm to the standardized digital value certificate, and establishing bidirectional association between the anti-counterfeiting mark and a carbon asset digital mark; dividing the standardized digital value certificate into a plurality of partitionable transaction units with uniform denominations according to the total value data specified by the standardized digital value certificate, and inheriting all attribute information of the original value certificate by each transaction unit; Registering the partitionable trading units to a designated carbon asset trading platform in batches to generate corresponding platform marketing identification codes and trading metadata; And (3) establishing association between the platform marketing identification code and the transaction metadata and the trusted carbon asset account book to form a value complete circulation tracking chain from a geological storage source to secondary market transaction.
8. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 6, comprising: creating an initial asset record frame in the trusted carbon asset ledger based on the carbon asset core identifier; Injecting pre-estimated geological attribute data of the target repository, including cap seal index and mineral carbonation potential index, into the initial asset record frame; binding the complete logistics histories and the value accounting certificates as inseparable process proving data into the asset record frame to form a complete data packet to be uplinked; submitting the complete data packet to be uplink to a distributed network node for consensus verification, and generating a block hash value after the verification is passed; and writing the complete data packet subjected to the common identification verification and the block hash value thereof into the trusted carbon asset account book together to generate a permanent carbon removal asset record.
9. The coal-fired power plant coupled carbon capture and sequestration full supply chain carbon management method of claim 1, further comprising: Collecting reservoir pressure monitoring data, fluid migration monitoring data and surface leakage monitoring data of a reservoir where carbon dioxide injection is completed at preset time intervals to generate a periodic geological audit report; based on the periodic geological audit report, evaluating and generating a seal state stability index by comparing the current state of the seal library with a reference state when injection is completed; dynamically adjusting the geological storage net value data according to the storage state stability index to generate an asset value update data packet; Integrating the periodic geological audit report, the seal state stability index and the asset value update data packet to generate an asset state update record; And additionally writing the asset status update record into the permanent carbon removal asset record through a distributed consensus mechanism, so as to realize continuous value maintenance and status tracking of the full life cycle of the carbon asset.
10. The utility model provides a coal fired power plant coupling carbon entrapment and full supply chain carbon management system who seals up, its characterized in that, coal fired power plant coupling carbon entrapment and full supply chain carbon management system who seals up includes: the monitoring module is used for calculating and generating a global dynamic geological carbon potential field distribution map based on the real-time working condition data and the pre-evaluation geological attribute data of each sealing library; The dispatching module is used for generating a geological priority dispatching instruction for capturing and purifying each batch of compressed carbon dioxide from the coal-fired power plant according to the dynamic geological carbon potential field distribution diagram; The tracking module is used for creating and binding a globally unique carbon asset digital identifier for the carbon dioxide when the carbon dioxide is injected into the conveying pipe network according to the geological priority scheduling instruction; The accounting module is used for accounting out the geological sequestration value data of the batch of carbon dioxide based on the geological attribute data of the target sequestration library and the logistics information recorded by the carbon asset digital identification after the carbon dioxide is injected into the target sequestration library designated by the geological priority dispatch instruction; and the management module is used for registering and recording the carbon asset digital identification, the complete logistics and sealing history and the geological sealing value data into a trusted carbon asset account book together to form a permanent carbon removal asset record.

Description

Full supply chain carbon management method and system for coupling carbon capture and sequestration of coal-fired power plant Technical Field The invention relates to the field of chain carbon management, in particular to a full supply chain carbon management method and system for coupling carbon capture and sequestration in a coal-fired power plant. Background With the increasing severity of global climate change, carbon capture, utilization and sequestration (CCUS) technology has become a critical path for deep decarbonization of large emissions sources in coal-fired power plants and the like. Wherein, the safe and permanent sealing of carbon dioxide in the underground geological structure is a core link for ensuring the emission reduction effect. However, existing CCUS project management modes typically manage trapping, transportation and sequestration as separate stages, lack of a synergistic perspective of full supply chain integration, result in overall inefficiency, high cost, and questionable authenticity and reliability of carbon emission reduction. The existing carbon dioxide transportation scheduling is mostly based on simple distance or economic cost optimization, and the geological safety attribute and the real-time working condition of the sealing library cannot be used as core decision variables. This may result in carbon dioxide being delivered to a reservoir where geological conditions are suboptimal or where conditions are intense, increasing the safety risk of long term sequestration; Currently, a 'one-cut' mode is adopted for value evaluation of the carbon sequestration amount, and the additional environmental value generated by the sequestration of safer and more stable geological structures cannot be reflected only based on capture amount calculation. The method can not form positive excitation of high-quality and high-price in the market, and weakens the economic power of enterprises for investing in high-quality sealing projects; the full-chain data from capturing to sealing is scattered and easy to tamper, and a trusted traceability system capable of self-verifying serum is lacked. This results in the regulatory authorities, investors and the public being hard to verify whether each ton of carbon dioxide is truly and permanently sequestered, hampering the development and international mutual recognition of carbon financial products; The sealing is a dynamic geological process for thousands of years, and the existing authentication is mostly 'disposable'. The project lacks a mechanism for long-term, periodic audit of the state of the stored library and dynamic linkage with the value of the carbon asset, and cannot cope with the possible risk of geological changes. Therefore, we propose a full supply chain carbon management method and system for coupling carbon capture and sequestration in coal-fired power plants to solve the above-mentioned problems. Disclosure of Invention The invention provides a full supply chain carbon management method and system for coupling carbon capture and sequestration of a coal-fired power plant, which are used for providing reliable technical support for green transformation of the coal-fired power plant. The invention provides a full supply chain carbon management method for coupling carbon capture and sequestration of a coal-fired power plant, which comprises the steps of calculating and generating a global dynamic geological carbon potential field distribution map based on real-time working condition data and pre-evaluation geological attribute data of each sequestration bank, generating geological priority dispatching instructions for capturing and purifying compressed carbon dioxide of each batch from the coal-fired power plant according to the dynamic geological carbon potential field distribution map, creating and binding globally unique carbon asset digital identifications for the carbon dioxide when the carbon dioxide is injected into a conveying pipe network according to the geological priority dispatching instructions, calculating geological sequestration value data of the carbon dioxide of the batch based on geological attribute data of the target sequestration bank and logistics information recorded by the carbon asset digital identifications after the carbon dioxide is injected into a target sequestration bank designated by the geological priority dispatching instructions, registering and recording the carbon asset digital identifications, complete logistics and sequestration histories of the carbon asset digital identifications and the geological sequestration value data into a trusted carbon asset book together, and forming permanent carbon removal records. Optionally, in a first implementation manner of the first aspect of the present invention, the method includes collecting real-time injection pressure and capacity occupancy rate of each repository as real-time working condition data, and calling a cap seal index and a mineral carbonat