Recently, Shanghai Plate Heat Exchanger (Shanghai Banhuan) successfully delivered a printed circuit heat exchanger (PCHE) for CO2 reinjection heating, designed and manufactured for a domestic natural gas production platform. This marks another benchmark achievement for the company in the field of high-end compact heat exchange equipment.
The CO2 reinjection heater is a key piece of core equipment in the natural gas decarbonization process on offshore platforms. Because some offshore gas fields have high CO2 content, produced gas must first undergo processes such as cryogenic distillation and membrane separation to remove CO2, ensuring that the exported natural gas meets the required standards. Due to environmental requirements, the removed CO2 must be reinjected into subsea reservoirs. The CO2 reinjection conditions must meet a 10 MPa supercritical state to achieve high efficiency and stable sequestration. At the same time, high-temperature thermal oil is used for heating, and the CO2 is heated before reinjection to prevent the risk of low-temperature ice blockage. In such scenarios, traditional shell-and-tube heat exchangers often find it difficult to meet all requirements due to their large volume, excess weight, and insufficient heat transfer efficiency. With core advantages such as high-temperature and high-pressure resistance, extreme compactness, high-efficiency heat transfer, fatigue resistance, and safe, leak-free operation, the PCHE has become the preferred equipment for this tag and a key enabler for achieving lightweight and modular offshore engineering equipment.
In view of the project’s tight schedule, complex design, and high manufacturing requirements, the company conducted an in-depth analysis of various technical points, designed and manufactured the equipment strictly in accordance with ASME standards, and optimized technical solutions such as filtration pretreatment and insulation/heat tracing to ensure the safe and stable operation of the equipment.
Based in Shanghai and serving the world, Shanghai Plate Heat Exchanger will continue to be driven by technological innovation and help advance the compact, efficient, and low-carbon development of global energy equipment.
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