Thread Content
Hubei’s 700,000-ton synthetic ammonia capacity expansion project kicks off Author/Source: Energy & Chemical Industry Updates Date: 2023-04-21 Clicks: 121 Recently, the first public notice regarding the environmental impact assessment for Shibaoshan synthetic ammonia capacity expansion project carried out by Hubei Sanning Chemical Co., Ltd. was released. This project involves converting the existing 600,000-ton ethylene glycol production facility of Shibaoshan New Materials Company, under Hubei Sanning Chemical Co., Ltd., into a facility capable of producing 700,000 tons of synthetic ammonia, with some hydrogen generated as a by-product. Shibao Mountain Ammonia Synthesis Capacity Expansion Project of Hubei Sanning Chemical Co., Ltd. Location: Yaojiagang Chemical Industrial Park, Zhijiang City. Project investment: The total investment amounts to 498.55 million RMB. Project details and scope of construction: This project involves converting the existing 600,000-ton ethylene glycol production facility of Hubei Sanning Chemical Co., Ltd.’s Shibao Mountain New Materials Company into a facility capable of producing 700,000 tons of ammonia, with some hydrogen generated as a by-product. The newly constructed process units for the project include a nitrogen production station, new nitrogen compressors operating at pressures of (0.4–6.6 MPa) along with modifications to the nitrogen pipeline network; modifications to the CO conversion process (including the addition of a new converter gas system); modifications to the low-temperature methanol washing process (involving the addition of another converter gas washing tower and related systems); modifications to the deep cryogenic separation of CO (involving the addition of another cryogenic tank and an N2 circulation pump, as well as another flash vapor compressor); modifications to the PSA process (including the addition of a PSA regeneration gas compressor). There are also expansions to the liquid nitrogen washing facility, as well as expansions to the ammonia synthesis unit (including gas compression, a refrigeration station for ammonia synthesis, and the ammonia synthesis process itself). Additionally, new substation buildings, a power generation plant using 3.8 MPa steam from the conversion process, and a power generation plant using low-pressure flash vapor from the gasification process have been built. Upon completion, the project will produce 700,000 tons of liquid ammonia per year. The project in Hubei for adjusting the raw material structure of ammonia synthesis and producing 600,000 tons per year of ethylene glycol is based on the ammonia production capacity of 520,000 tons per year held by Sanning Company’s urea plant and Tiantian Company’s plant. Without increasing this capacity, the ammonia production facilities of these two companies, which use bituminous coal as raw material and rely on atmospheric pressure batch fixed-bed gasifiers, atmospheric pressure desulfurization processes, and high-pressure ammonia synthesis methods, along with the downstream urea and ammonium bicarbonate production units, are to be phased out. The total estimated investment for the project is 10 billion yuan; it involves the construction of a new facility that uses high-quality Shenhua coal as raw material to produce ethylene glycol and synthetic ammonia ； Industrial-grade sulfuric acid is produced using sulfur as a raw material.