The first cryogenic tank panel for the second phase of Guangxi Hengyi New Materials Co., Ltd.’s 33,000 Nm³/h air separation project was successfully lifted into place
Thread Content
Recently, significant progress was made in the second phase of the 33,000 Nm³/h air separation project at Guangxi Hengyi New Materials Co., Ltd.; the first cold box panel was successfully lifted with precision, marking the official entry of equipment installation for this project into its core construction phase. The success of this lifting operation fully demonstrated the efficient teamwork and technological innovation capabilities of the Project 206 team, providing strong confidence for the timely delivery of the project. Once the second-phase air separation unit is completed, it will improve the layout of Guangxi Hengyi’s new materials industry chain, enhance the self-sufficiency rate of raw materials and production stability, and help the company reduce costs and increase efficiency. The project is expected to be fully operational by August 2026, which will enhance Guangxi Hengyi New Materials’ competitiveness in the field of nylon-based new materials, promote the upgrading of the industrial cluster in the Qinzhou Petrochemical Industry Park in Guangxi, and add new momentum to the regional economic development. The first phase of Guangxi Hengyi New Materials’ project for the integrated production of 1.2 million tons per year of caprolactam and polyamides includes the construction of one coal-to-hydrogen ammonia synthesis complex (with a hydrogen output of 100,000 m3/h and an ammonia output of 200,000 tons per year), two hydrogen peroxide production units with an output of 400,000 tons per year (based on 35% concentration), two cyclohexanone production units with an output of 300,000 tons per year, two caprolactam production units with an output of 300,000 tons per year, and five polyamide polymerization units with an output of 120,000 tons per year each. The coal-to-hydrogen ammonia synthesis complex utilizes two SpaceMaiwei pulverized coal semi-waste boiler gasifiers, producing 100,000 m3/h of hydrogen and 200,000 tons per year of ammonia.
The polyamide facility is composed of 6 separate units: two production units for Polyamide A and Polyamide B, two storage systems in Packaging Buildings A and B, as well as supporting energy facilities such as heat transfer stations and substations, all of which together form a complete production system. Construction of the facility began on December 5, 2023; the civil work was completed on September 27, 2024. The first lifting of equipment took place on October 12, and the installation of more than 1,600 pieces of equipment was finalized by December 30 ； On December 25, efforts were intensified to weld the process pipelines; the welds on pipes with a diameter of 500,000 inches were completed with a qualification rate of 98.2% ； As of January 10, 2025, the electrical and instrumentation team began intensive work to lay 980,000 meters of cable, thereby establishing the neural network of the system. After 581 days and nights, high-quality handover was finally achieved on July 8, 2025. The polyamide production facility is the core of Guangxi Hengyi New Materials Co., Ltd.’s final product manufacturing process; it converts the caprolactam raw materials from the upstream stage into high-value polyamide chips. It represents a key link in Hengyi Group’s \"one drop of oil, two strands of fiber\" industrial chain. Once in operation, it will become the world’s largest single polyamide production facility, with an annual output value of over 20 billion yuan. This test represents a comprehensive assessment of the achievements made in the construction of the polyamide plant. Moving forward, the project team will make every effort to optimize the commissioning plan to ensure a successful first start-up of the plant, thereby striving to meet the target of putting the polyamide plant into operation by August 20. The integrated industrial complex for the production of 1.2 million tons per year of caprolactam and polyamide at Guangxi Hengyi New Materials Co., Ltd., as well as the associated coal-based hydrogen production and ammonia synthesis facilities, utilize two Aerospace Maiwei pulverized coal semi-waste boiler gasifiers to produce 100,000 m3/h of hydrogen and 200,000 tons per year of ammonia. The Guangxi Hengyi New Materials project, which involves the integrated production of 1.2 million tons of caprolactam and polyamides per year, has a total investment of around 22 billion yuan. Once operational, it will be able to produce 1.2 million tons of polyamide chips per year, generating annual sales revenue of about 20 billion yuan and annual tax revenues of 1.8 billion yuan. One phase of this investment amounts to around 12 billion yuan, covering an area of 1,700 mu. The construction includes facilities for producing 600,000 tons per year of cyclohexanone, 1.2 million tons per year of hydrogen peroxide, 200,000 tons per year of synthetic ammonia, 600,000 tons per year of caprolactam, as well as 600,000 tons per year of polyamide. The second phase of the project mainly involves the construction of 1 set of hydrogen peroxide production facility with an annual capacity of 400,000 tons (based on 35% concentration), 2 sets of cyclohexanone production facilities using the olefin process with an annual capacity of 300,000 tons each, 2 sets of caprolactam production facilities with an annual capacity of 300,000 tons each, and 5 sets of polyamide polymerization facilities with an annual capacity of 120,000 tons each. The construction period for Phase II is 24 months, with commissioning expected in 2025.
【Ten Years of Rapid Development in Chemical Equipment】China Petrochemical’s first fully domestically produced Safety Instrumented System (SIS) was successfully tested and approved in Hangzhou from 2661 to 2025. https://bbs.hcbbs.com/thread-5700967-1-1.html (Source: Haichuan Chemical Forum)
【Ten Years of Rapid Development in Chemical Engineering Equipment】2652-2025: Major breakthroughs achieved in the application of methanol new energy pipeline transportation technology in complex terrains in China https://bbs.hcbbs.com/thread-5700596-1-1.html (Source: Haichuan Chemical Industry Forum)
The first 3,000-ton Jinhua furnace was lifted into place at the Xinlianxin New Materials project in Xinxiang, Henan. https://bbs.hcbbs.com/thread-5700925-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Engineering Equipment】New breakthroughs have been achieved in the pre-oxidation technology for the carbon fiber industry between 2026 and 2025; China’s first pilot-scale pre-oxidation furnace using a combination of hot air and microwave technologies with a width of 0.4 meters has been developed. https://bbs.hcbbs.com/thread-5701002-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Engineering Equipment】2665-2025: China’s aerospace semi-fixed-bed gasification units have achieved a continuous operation time of 2 years, breaking the world record for continuous operation of fluidized-bed gasification technology. https://bbs.hcbbs.com/thread-5701080-1-1.html (Source: Haichuan Chemical Engineering Forum)
【Ten Years of Rapid Development in Chemical Equipment】2666-2025: Ending a 30-Year Foreign Monopoly! Shin-Nakamura’s 180,000-ton liquid methionine project is now in operation! https://bbs.hcbbs.com/thread-5701089-1-1.html (Source: Haichuan Chemical Industry Forum)
【History of Haichuan Chemical】Permanent shutdown of the facilities at Huayi Group’s Shanghai Nenghua Wujing plant https://bbs.hcbbs.com/thread-5701106-1-1.html (Source: Haichuan Chemical Forum)
【Ten Years of Rapid Development in Chemical Engineering Equipment】2668-2025: China’s first mobile energy storage power system was successfully applied on a drilling platform operated by Great Wall Drilling https://bbs.hcbbs.com/thread-5701137-1-1.html (Source: Haichuan Chemical Industry Forum)