【Ten Years of Rapid Development in Chemical Equipment】The First Domestic 1.5TPD Hydrogen Liquefaction Unit with Independent Intellectual Property Rights, 1978–2022
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Witnessing the ten-year rapid development of chemical processing equipment, I praise the prosperity and strength of modern China. Wishing everyone a happy New Year, and may their families enjoy peace and good health. I hope this contribution will inspire more people to participate; with your involvement, Haichuan becomes even better. Everyone is welcome to join in the discussions on this forum. -----------------------------------------------------In December 2022, Zhongke Fuhai successfully tested its first domestically produced 1.5TPD hydrogen liquefaction unit, which features independent intellectual property rights. The unit was able to produce liquid hydrogen with a purity of 99.9999%, meeting both the production volume and purity requirements specified in the design. This project is the first domestically produced, civilian-use industrial application device with a production license developed with the involvement of Zhongke Fuhai; it aims to reduce the costs associated with hydrogen storage and transportation, enhance the capacity for hydrogen supply, and address the issues related to the high costs of transporting hydrogen over long distances. The successful implementation of this project will help to break through international embargoes, promote technological advancement in China’s liquid hydrogen industry, drive the development of related sectors such as new energy, transportation, electronics, petroleum, and chemical manufacturing, and contribute to optimizing Fuyang City’s energy structure as well as achieving carbon peak and carbon neutrality goals. The Zhongke Fuhai 1.5TPD hydrogen liquefaction unit uses a liquid nitrogen pre-cooling system, along with a helium refrigeration cycle that consists of two-stage helium gas-bearing turbine expanders, to achieve cooling; hydrogen is then cooled step by step to low temperatures before being throttled to produce liquid hydrogen. The core components of this system include a high-speed gas-bearing turbine expander, a low-leakage plate-fin heat exchanger, a high-efficiency screw compressor, a precision oil filtration system, and a control system. The efficiency of the turbine in this set of equipment is over 75%, and the core components have been domestically produced.
The 1.5 TPD hydrogen liquefaction unit in operation this time is part of the Anhui Zhongke Haohai High-End Green Hydrogen Project, which is one of the three strategic initiatives of Zhongke Fuhai. The device was independently designed and developed starting in 2018; by the end of 2019, the core components were processed and manufactured at Zhongshan Equipment Company of China Science and Fortune Sea, with the main hydrogen liquefaction cryogenic tank being integrated as well ； Liquid hydrogen products were produced in December 2022. In fact, as early as January 2019, Zhongke Haohai, a subsidiary of Zhongke Fuhai, launched a high-end green hydrogen project in Fuyang, Anhui, with the aim of establishing a hydrogen industry chain for the simultaneous production of high-purity gaseous hydrogen and liquid hydrogen. Phase 1 of the project includes a hydrogen purification unit with a capacity of 2,000 m3/h and a hydrogen liquefaction unit with a capacity of 1.5 TPD. The hydrogen used comes from the chemical by-products of Anhui Haoyuan Group. Based on the characteristics of this raw material gas, Zhongke Fuhai employed mature and advanced pressure swing adsorption technology for hydrogen purification, and by January 2022 it had successfully produced hydrogen with a purity of over 5N. With the successful commissioning of the 1.5TPD unit, the combined production facility for high-purity hydrogen and liquid hydrogen in Phase I has been brought online in its full capacity. It is expected that the hydrogen purification unit will be able to produce 9,760,000 Nm3 of high-purity hydrogen per year (on a standard condition basis), while the liquid hydrogen production capacity will be 3,240,000 Nm3 per year. In addition to serving hydrogen refueling stations for fuel cell vehicles, the significant purity advantages of liquid hydrogen will enable it to meet the demand for hydrogen with a purity level of 6N or higher in industries such as optical fibers, semiconductors, and integrated circuits.
Give a thumbs up to localization, give a thumbs up to technological progress, and give a thumbs up to the workers
【Ten Years of Great Development in Chemical Equipment】The summary post is being updated regularly; feel free to join the discussion at https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Network – Chemical Industry Trends)