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【Multiple Nozzles】The hydrogen-ammonia project of Pingmei Shenma has entered the pre-commissioning phase; mechanical installation is expected to be completed by July. Author/Source: Gasification World. Date: 2023-05-06. Clicks: 11. It was reported recently that the installation and construction, as well as the pre-commissioning work for the hydrogen-ammonia facility supporting the nylon chemical industry at Henan Shenma Hydrogen Chemistry Co., Ltd. (referred to as “Henan Shenma”), are being carried out simultaneously in various areas. To date, 98% of the project’s equipment has been installed, 89% of the piping work is complete, 65% of the electrical cable installation is finished, and 40% of the instrument cable work has been completed. The project is progressing from the installation phase to the pre-commissioning phase; single-unit testing of the air separation circulating water station has been completed, and flushing of the circulating water system is currently in progress. The hydrogen and ammonia project supporting the nylon chemical industry uses 3 multi-nozzle water-coal slurry gasifiers (2 in operation and 1 as backup) to produce raw gas; this raw gas is then purified through shift reaction, heat recovery, desulfurization, and decarbonization to yield purified gas. Part of the purified gas is compressed into syngas after being refined with liquid nitrogen, and then sent to the ammonia synthesis plant to produce 400,000 tons of liquid ammonia. Another portion of the purified gas passes through a PSA hydrogen extraction unit to produce 50,000 m3/h of pure hydrogen. According to a company official, the planned construction period for this project is 28 months, with an aim to keep it within 24 months. Based on the current progress, mechanical completion is expected by July this year, with trial operation and commissioning scheduled for December. Project Overview: Henan Shenma Nylon Chemical Co., Ltd. is carrying out a technical upgrade and relocation of its existing hydrogen production facilities in the Pingdingshan Nylon New Materials Industry Cluster in Ye County, Pingdingshan City, Henan Province. Advanced water-coal slurry gasification technology is being used in place of fixed-bed gasification technology to build a facility capable of producing 400,000 tons per year of liquid ammonia and 50,000 Nm3/h of hydrogen, with sulfuric acid generated as a by-product. The construction of this facility will meet the raw material needs of companies in the nylon chemical and nylon technology sectors, enabling self-sufficiency in terms of raw materials. Production units: coal preparation, gasification, shift and heat recovery, low-temperature methanol washing, liquid nitrogen washing, ammonia synthesis, sulfur recovery, PSA hydrogen production, air separation units, and product storage areas, etc ； Utilities and auxiliary facilities include the complex building, central laboratory, central control room, substation, circulating water station, desalination station, sewage treatment plant, deaeration station, chemical storage area, etc. Process technology: Using Shenmu coal blended with locally produced high-sulfur coal from Pingdingshan as raw material, crude gas is produced through reaction in a water-coal slurry gasifier. The crude gas is then processed through shift and heat recovery units, as well as desulfurization and decarbonization units, to yield purified gas. Part of this purified gas is refined by liquid nitrogen washing, compressed into syngas, and sent to an ammonia synthesis unit to produce liquid ammonia as the final product. Another portion of the purified gas is used to produce pure hydrogen under the adsorption action of the PSA hydrogen extraction unit, while the acidic gas generated by the purification unit is sent to a sulfur recovery unit to produce concentrated sulfuric acid as a by-product. Main equipment: coal mill, gasifier, water scrubber tower, shift converter, heat exchanger, cooler, compressor, steam turbine, adsorber, pump, tank, liquid nitrogen cooling box, ice machine, transformer, and flare stack, etc. This project is a large-scale chemical facility supported by Pingdingshan City and China Pingmei Shennma Holding Group for the development of the \"China Nylon City,\" to establish a complete industrial chain for nylon, and to address the shortages of raw materials such as hydrogen and liquid ammonia. It is designed to have an annual production capacity of 400,000 tons of synthetic ammonia and 400 million standard cubic meters of hydrogen, with a total investment of around 3.3 billion yuan. Upon completion, it will serve as an industrial gas supply center, liquid ammonia storage and transportation center, wastewater treatment center, and steam coupling center for China’s Nylon City, thereby further enhancing the market competitiveness of the entire nylon industry chain.