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The green and energy-saving installation project for caprolactam at Anhui Quansheng Chemical Co., Ltd. is a key project in Anhui Province, with a total investment of 3.15 billion yuan. Upon completion, the project will create 500 local jobs and generate profits and taxes amounting to 420 million yuan, making a positive contribution to the local economic and social development. To date, there are 127 units of equipment for this project, of which 98 have been installed so far ; A total of 12 large-scale equipment units were lifted; 6 of them have been lifted as a whole, while 2 were lifted in sections. The total weight of the equipment ladder platforms to be manufactured and installed is 100 tons, with 60 tons already prefabricated and installed so far. The total length of process pipelines for desulfurization and decarbonization projects is 56,297 inches; 3,803 inches have been completed so far, with the construction of the remaining sections progressing steadily. Eight large-scale equipment installations were completed in a single month, creating favorable conditions for subsequent installation work.
Anhui Quansheng Chemical Co., Ltd. was formerly the Dingyuan County Fertilizer Factory, and it is a subsidiary controlled by Anhui Zhongneng Chemical Co., Ltd. The company is a comprehensive chemical enterprise focused on coal chemical processing; it also provides centralized heating for the industrial park. Its main products include liquid ammonia, hydrogen peroxide, hydrogen, urea, and methanol. The factory covers an area of 1,500 mu and is located in Luqiao Town, Dingyuan County, Chuzhou City, within Block 2 of the Dingyuan Economic Development Zone in Anhui (formerly the Dingyuan Salt Chemical Industry Park). Quansheng Company plans to invest 3,159,498,100 yuan in building a green and energy-efficient caprolactam production facility within the Dingyuan Salt Chemical Industrial Park in Anhui. The facility will include PSA hydrogen production units, cyclohexanone production units, caprolactam production units, and sulfuric acid production units; in addition, it will have ammonium sulfate production units, ammonia storage areas, wastewater treatment plants, as well as various auxiliary infrastructure and environmental protection facilities. Project construction contents: Construct a cyclohexanol plant (Class A) covering an area of 10,560 m2, with 3 floors and a height of 21.7 m; add equipment such as hydrogenation reactors, dehydration towers, benzene separation towers, cyclohexene purification towers, hydration reactors, cyclohexanol separation towers, cyclohexanol distillation towers, cyclohexane purification reactors, cyclohexane distillation towers, extraction towers, and drying towers. Construct a dehydrogenation plant (Class A) covering an area of 7,320 m2, with 2 floors and a height of 16 m; add equipment such as cyclohexanol dehydrogenation reactors and hot oil furnaces. Construct a sulfuric acid production plant covering an area of 7,100 m2, with 3 floors and a height of 21.7 m; add equipment such as sulfur incineration furnaces, converters, air filters, waste heat recovery systems, drying towers, and absorption towers. Construct a caprolactam plant (Class A) covering an area of 8,600 m2, with 3 floors and a height of 23 m; add equipment such as oximation reactors, water extraction towers, wastewater stripping towers, oximation cyclone membrane filters, rearrangement tanks, rearrangement liquid maturation tanks, hydrogenation reactors, benzene distillation towers, benzene stripping towers, and ion exchange towers. Construct an ammonium sulfate plant covering an area of 4,500 m2, with 4 floors and a height of 21 m. Construct an ammonium sulfate granulation workshop covering an area of 3,200 m2, with 1 floor and a height of 18 m; add equipment such as ammonia evaporators, ammonium sulfate centrifuges, crystallizers, mother liquor storage tanks, and drying systems. Utilizing the existing coal gasification unit, construct shift conversion units, low-temperature methanol washing units, liquid nitrogen washing units, PSA hydrogen production units, compression units, and ammonia synthesis units. It is reported that the project has been registered with the Economic and Information Technology Commission of Dingyuan County, Chuzhou City, Anhui Province (project code: 2205-341125-07-02-799647). The green and energy-efficient caprolactam production project will be established using the company’s existing synthetic ammonia plant with an annual production capacity of 160,000 tons. Currently, the detailed design and procurement work are in progress, and extensive on-site civil construction will also begin.