Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, a B-grade boiler installation license, and GB2/Class and GC2/Class pressure pipeline installation licenses, as well as a mechanical and electrical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 member of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
Carbon dioxide has several main applications in the battery industry: as a solvent in electrolytes: Carbon dioxide can be one of the solvents in battery electrolytes. In certain types of batteries, carbon dioxide can be mixed with organic solvents to enhance the performance and stability of the electrolyte. as a protective gas in battery manufacturing: During the battery manufacturing process, carbon dioxide can be used as a protective gas. For instance, during battery assembly and encapsulation, carbon dioxide can be used to replace air, preventing oxygen and moisture in the battery from oxidizing and corroding the battery materials. improving battery performance: Carbon dioxide can improve battery performance by altering the atmosphere within the battery. For example, by injecting carbon dioxide gas into the battery, pressure and temperature can be regulated, enhancing the battery's cycle life and safety performance. carbon dioxide capture and storage: The production of batteries generates carbon dioxide emissions. Carbon dioxide capture and storage technologies can be used to reduce these emissions. By capturing and storing carbon dioxide, atmospheric emissions can be reduced, minimizing environmental impact. It is important to note that the application of carbon dioxide in the battery industry is continuously evolving and being researched. With technological advancements and innovation, carbon dioxide's applications in the battery field may see more breakthroughs and developments.

CO2 flooding is a commonly used enhanced oil recovery technique to increase oilfield production. It involves injecting CO2 gas into the reservoir to alter its physical and chemical properties, thereby promoting flow and improving recovery rates. The working principle of CO2 flooding is as follows: Dissolution Principle: CO2 has a high solubility in oil. When CO2 gas is injected into the reservoir, it dissolves in the oil, reducing its viscosity and surface tension, making it more fluid. Expulsion Drive Principle: After CO2 gas is injected into the reservoir, it expands to form a gas phase, increasing the reservoir's internal pressure and pushing the oil towards the wellbore. Additionally, CO2's high permeability can also improve the reservoir's permeability, enhancing fluidity. Chemical Reaction Principle: CO2 reacts with certain components in the oil, producing soluble substances that further lower the viscosity and increase fluidity. CO2 flooding technology offers certain advantages in oilfield development, such as: Environmental Friendliness: CO2 is a non-toxic, non-flammable, and renewable gas. Using CO2 for flooding can reduce environmental pollution. Economic Efficiency: CO2 flooding can increase oil recovery rates and production, thus enhancing economic benefits. Sustainability: CO2 can be separated from air or captured and stored from industrial flue gases, enabling the recycling of CO2 and offering sustainability. It is important to note that the application of CO2 flooding technology requires consideration of reservoir characteristics, geological conditions, and economic feasibility factors. Before implementing CO2 flooding, a comprehensive reservoir evaluation and engineering design must be conducted to ensure the effectiveness and safety of the technology.

The safe operation of low-temperature CO2 storage tanks is crucial and primarily involves the following aspects: Design and Manufacturing: The tank's design and construction must comply with relevant standards and regulations to ensure they can withstand working conditions in low temperatures and high pressures. The tank should have sufficient strength and sealing performance to prevent leaks and ruptures. Safety Valves and Pressure Control: The tank should be equipped with safety valves and pressure control devices to ensure the internal pressure remains within safe limits. Safety valves should be inspected and tested regularly to ensure proper functioning. Temperature Control: Effective temperature control is necessary for low-temperature CO2 storage tanks to prevent freezing or embrittlement due to excessively low temperatures. Appropriate insulation materials and equipment should be used to maintain the tank and pipeline temperatures within safe ranges. Leak Detection and Alarm: The tank should be fitted with leak detection devices and alarm systems, along with corresponding monitoring equipment. These devices can detect leaks promptly and trigger alarms for appropriate action. Safe Operation and Training: Operators should receive relevant training to understand the safe operation procedures and standards for low-temperature CO2 storage tanks. Operators should be familiar with the tank's characteristics, working principles, and emergency response measures. Regular Inspection and Maintenance: Tanks should be inspected and maintained regularly, including visual inspections, anti-corrosion coating maintenance, and leak detection. Regular checks can help identify potential issues early and take corrective actions. Emergency Preparedness: Establish an emergency response plan and equip with appropriate fire extinguishing and first aid equipment. Operators should be familiar with emergency procedures and able to respond swiftly to emergencies. Please note that the above points are general recommendations. Specific safe operating procedures should be based on the design and usage requirements of the low-temperature CO2 storage tanks. It is recommended to refer to relevant safety operation manuals and guidelines before using the tank to ensure safe operation.

Installation and operation of low-temperature carbon dioxide storage tanks must comply with the following requirements: Installation Location Selection: When choosing the installation location for the tank, consider the weight and dimensions of the tank to ensure a solid and stable foundation. Additionally, maintain a safe distance from flammable, explosive materials, and high-temperature sources to ensure safety. Safety Distance: Maintain a certain safety distance around the tank for routine inspections, maintenance, and emergency responses. The safety distance should adhere to relevant safety regulations and standards. Connection Pipelines: Use appropriate connection methods between the tank and pipelines to ensure tight, reliable connections with no leaks. The connection pipelines should meet relevant standards and specifications. Pressure Relief Devices: The tank should be equipped with pressure relief devices, such as safety valves, to control internal pressure. The set pressure of the pressure relief devices should meet relevant requirements and be inspected and maintained regularly. Sealing Inspection: Regularly check the tank's sealing performance to ensure no leaks. Pay special attention to the sealing of valves, pipeline connections, and the tank itself. Temperature Control: Low-temperature carbon dioxide storage tanks require temperature control to maintain the tank's internal低温 state. Ensure the surrounding environmental temperature is suitable and take appropriate insulation measures. Safety Protection: Set up appropriate safety protection facilities around the tank, such as guardrails and warning signs, to remind personnel of safety and prevent unauthorized access to the tank. Storage Capacity Control: Control the storage capacity of the tank based on actual needs to avoid exceeding the rated capacity. Exceeding the rated capacity can lead to excessive tank pressure, increasing safety risks. Storage
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