Chuanyi Co., Ltd.’s independently developed new generation of high-pressure hydrogenation multi-point thermocouples have achieved stable operation in a Shaanxi Lean fixed-bed hydrogenation reactor

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Recently, the new generation of high-pressure hydrogenation multi-point thermocouples, independently developed by Chuanyi Co., Ltd., have achieved stable operation in the fixed-bed hydrogenation reactor at Shaanxi Jingyi Chemical Co., Ltd. The temperature measurement data obtained is accurate and reliable, providing a crucial guarantee for the safe and efficient operation of the facility. The successful deployment of this product not only signifies a major breakthrough by Chuan Yi Co., Ltd. in temperature measurement technology under high-temperature, high-pressure hydrogen-containing conditions, but also demonstrates the leading capabilities of domestically produced high-end instruments in replacing imported ones in critical processes. This application is a key component of the optimization and renovation of the 450,000 tons/year hydrocracking unit in the Lean Chemicals plant, as well as the new construction project for the second-stage hydrogenation of 300,000 tons/year of residue oil. As the core equipment for the hydrocracking of coal tar, fixed-bed hydrogenation reactors are constantly confronted with extreme operating conditions: high temperatures inside (above 400°C), high pressures (above 15 MPa), and severe corrosion (due to substances such as hydrogen sulfide). Chuanyi No. 17 Factory, the manufacturer of this product, has carried out technical upgrades in the areas of safety, stability, and accuracy of high-pressure hydrogenation multipoint thermocouple products, taking into account the structural and operational characteristics of such hydrogenation reactors. It has optimized the design of the multi-stage sealing system and enhanced the flexible armored technology capable of withstanding high pressures and hydrogen permeation, thereby improving the overall safety and reliability of the products and ensuring their stable operation under extreme conditions over time. It effectively assists operators in precisely controlling the reaction conditions, preventing localized overheating or uneven reactions, thereby improving product quality and plant safety. Taking this partnership as an opportunity, CHUANYI CO., LTD. will work together with benchmark clients such as Lean Chemicals to advance the localization of high-end equipment, thereby helping China’s energy and chemical industry move toward a new era of efficiency, low carbon emissions, and safety!