Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Carbon dioxide storage tanks can be categorized into various types and structures based on their design and application: - Vertical Tanks: Commonly used carbon dioxide storage tanks, these are cylindrical in shape and placed vertically. They typically have larger capacities and are used for large-scale storage and supply of carbon dioxide. - Horizontal Tanks: Another common type, these tanks are rectangular or cylindrical in shape and placed horizontally. They are usually used for smaller-scale storage and supply, suitable for limited spaces. - Spherical Tanks: A specialized type of carbon dioxide storage tank with a spherical shape. They offer high strength and pressure-bearing capacity, suitable for high-pressure storage and transportation of carbon dioxide. - Vertical Tanks: Smaller in capacity, these cylindrical tanks are placed vertically. They are commonly used for small-scale storage and supply, such as for commercial and residential use. - Underground Tanks: A unique structure where the carbon dioxide storage tank is buried underground. They save space, reduce visual impact, and provide enhanced safety and environmental protection. These tanks are usually constructed from pressure-resistant materials (like carbon steel or stainless steel) with certain insulation properties and equipped with accessories such as safety valves, pressure gauges, and level indicators. The interior often features baffles or partitions to separate different liquids or gases. Additionally, the tanks are fitted with safety systems including pressure maintenance systems, leak detection systems, and fire detection systems.

Technical specifications for carbon dioxide storage tanks can be formulated based on different application fields and/or regional standards. The following are some common technical specifications and standards for reference: ASME Standards: The American Society of Mechanical Engineers (ASME) has issued a series of standards for pressure vessels, including specifications for carbon dioxide storage tanks such as ASME BPVC Section VIII Division 1 and ASME BPVC Section VIII Division 2. ISO Standards: The International Organization for Standardization (ISO) has published some standards related to pressure vessels, such as ISO 9809-1 and ISO 9809-2, covering design, manufacturing, and inspection requirements for steel gas cylinders. GB Standards: The China National Standardization Administration has issued a series of standards related to pressure vessels, such as GB 150 "Pressure Vessels" and GB 5099 "Steel Gas Cylinders," which include design, manufacturing, and inspection requirements for carbon dioxide storage tanks. DOT Standards: The United States Department of Transportation (DOT) has issued some standards related to pressure vessels and cylinders, such as DOT-3AA and DOT-4BA, covering design, manufacturing, and transportation requirements for liquefied gas storage tanks. EN Standards: The European Committee for Standardization (CEN) has published some standards related to pressure vessels, such as EN 13445 and EN 14382, covering design, manufacturing, and inspection requirements for liquefied gas storage tanks. Additionally, other industry standards and specifications may apply to carbon dioxide storage tanks based on specific application needs, such as standards related to the food and beverage industry, etc. When using carbon dioxide storage tanks, it is necessary to select applicable technical specifications based on specific application requirements and local regulations, and ensure that the design, manufacturing, and use of the tanks comply with the corresponding standards and specifications.

The internal structure of a carbon dioxide storage tank typically includes the following main components: Tank Shell: The tank shell is the primary container for storing carbon dioxide and is usually made of carbon steel or stainless steel. It has sufficient strength and密封性 to withstand the pressure and loads within the tank. Lining Layer: To prevent direct contact between carbon dioxide and the tank shell, avoiding corrosion and contamination, the interior of the tank is usually coated with a lining layer. The lining layer is typically made of corrosion-resistant materials such as glass fiber reinforced plastic, polyester resin, etc. Support Structure: To support the weight of the tank and maintain stability, a support structure is usually installed inside the tank. This can include support feet, support frames, etc., used to support the bottom and side walls of the tank. Internal Accessories: The tank is also equipped with some important accessories, such as level gauges, pressure sensors, temperature sensors, safety valves, etc. These accessories are used to monitor and control the liquid level, pressure, and temperature inside the tank to ensure safe operation. Pressure Relief Device: To prevent excessive internal pressure, the tank is usually equipped with a pressure relief device such as a safety valve. When the internal pressure of the tank exceeds the set value, the pressure relief device will automatically open to release pressure and protect the tank's safety. Inlet and Outlet Pipes: The tank also has inlet and outlet pipes for injecting and discharging carbon dioxide. These pipes are typically connected to external supply or consumption systems to facilitate the storage and use of carbon dioxide. The above is a general description of the internal structure of carbon dioxide storage tanks. Specific structural design and configurations may vary depending on the tank's purpose and specifications. When using and maintaining the tank, it is necessary

Carbon dioxide synthesis is a chemical reaction that utilizes carbon dioxide to create compounds. This process has several applications: - Fertilizer production: It is an essential raw material for manufacturing fertilizers, and carbon dioxide synthesis represents a sustainable production method. By reacting with carbon dioxide, it can synthesize compounds used in nitrogen fertilizers, such as urea. This approach reduces reliance on fossil fuels used in traditional production methods and lowers greenhouse gas emissions. - Energy storage: Carbon dioxide synthesis can also serve as a form of energy storage. By reacting carbon dioxide, energy can be stored in the form of chemical bonds. When energy is needed, the reverse reaction can decompose the compounds back into carbon dioxide and, releasing the stored energy. - Fuel cells: It can act as a clean fuel for fuel cells. By synthesizing carbon dioxide into compounds and then using them in fuel cells, electricity can be generated, with only water and nitrogen as byproducts, reducing environmental pollution. - Chemical synthesis: It is an important raw material for the synthesis of many chemicals. Carbon dioxide synthesis can provide a sustainable supply for the chemical industry, used to synthesize other chemicals, such as etc. The development of carbon dioxide synthesis technology aims to reduce dependence on fossil fuels used in traditional production methods, lower greenhouse gas emissions, and promote the development of sustainable energy and the chemical industry. However, this technology is still in continuous development and research, requiring further technological breakthroughs and practical verification to achieve large-scale application.
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