Synthetic ammonia feedstock route and energy-saving and emission-reduction technology renovation project of Zhejiang Jinju Chemical Co., Ltd

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Project on the synthetic ammonia raw material route and energy-saving and emission-reduction technological upgrades at Zhejiang Jinju Chemical Co., Ltd. Author/Source: Compiled and published by the Nitrogen Fertilizers and Methanol Technology Network of Juhua Group Co., Ltd. Date: June 10, 2019. Clicks: 36. Zhejiang Jinju Chemical Co., Ltd. (hereinafter referred to as Jinju Company) was formerly the synthetic ammonia plant of Zhejiang Juhua Co., Ltd. In May 2008, Zhejiang Jinju Chemical Co., Ltd. was established with capital contributions from Shanxi Jincheng Smokeless Coal Mining Industry Group Co., Ltd., Juhua Group Company, Juhua Co., Ltd., and the natural persons in charge of Jinju Company, thereby completing the diversification of the company’s ownership structure. Shanxi Jincheng Coal Industry holds a relative controlling stake, accounting for 36.84% of the company’s shares ； Juhua Group and Juhua Co., Ltd. each hold 31.58% of the shares. After 50 years of inheritance, development, and growth, Jinju Company has seen its advantages in terms of industrial infrastructure within its campus, its favorable geographical and market conditions, as well as the high quality of its workforce become even more evident. It has evolved from a single fertilizer production enterprise into a large-scale company that manufactures fertilizers, chemical raw materials, and fine chemical products. At present, Jinju Company has a total ammonia production capacity of 350,000 tons per year, including a liquid ammonia plant with a capacity of 190,000 tons per year, a methanol plant with a capacity of 160,000 tons per year (of which 100,000 tons are mono-alcohol), and a food-grade carbon dioxide plant with a capacity of 60,000 tons per year. Its main products include liquid ammonia, ammonia water, urea, food additive-grade liquid carbon dioxide, organic amines (butylamine), methanol, formaldehyde, liquid oxygen, liquid nitrogen, liquid argon, hydrogen, and more. Jinju Company is an important supplier of basic chemical raw materials for Juhua Group as well as for Zhejiang Province. Jinju Company supplies basic raw materials such as liquid ammonia, ammonia water, methanol, urea, etc., for the core business areas of Juhua Group – the fluorine chemical industry and the petrochemical materials industry. In the industrial chain of Juhua Group, Jinju Company plays a role in ensuring the supply of basic raw materials. The UGI atmospheric pressure gas furnaces used by Jinju Company have significant disadvantages: they rely on a single type of raw material, namely anthracite coal, which is expensive and scarce ； Constant-pressure batch gas production is used; the process is outdated and its capabilities are limited, resulting in a low carbon conversion rate ； High production costs and weak competitiveness. Given the current situation, technological upgrades to the raw material processes for ammonia synthesis are necessary in order to reduce costs. By using pulverized coal as a substitute for lump coal as a raw material, reliance on high-quality lump coal can be reduced, thereby increasing the carbon conversion rate of coal and the efficiency of resource utilization. This leads to lower costs associated with raw material coal, enhancing the competitiveness and risk resistance of enterprises ； Technological upgrades to the raw material routes for ammonia synthesis are also necessary to alleviate environmental and safety pressures. By utilizing technologies supported by industrial revitalization efforts, clean production can be achieved, technological advancement can be promoted, environmental pollution can be reduced, and safety protocols can be improved, thereby easing these environmental and safety pressures ； The technological upgrades to the raw material routes for ammonia synthesis enhance Juhua Group’s advantages in its industrial chain, providing competitive basic materials such as hydrogen and liquid ammonia. The water-coal slurry technology is employed to enhance the capacity for treating high-concentration wastewater, thereby strengthening the important role of regional environmental protection facilities. This project was registered with the Quzhou Economic and Information Technology Administration in April 2018, and its project code is 2018-330800-26-03-020333-000. II. Basic Information on the Construction Project Project Name: Synthetic Ammonia Raw Material Route and Energy Conservation/Emission Reduction Technology Transformation Project Constructor: Zhejiang Jinju Chemical Co., Ltd. Construction Location: No. 251, Juhua Central Avenue, Kecheng District, Quzhou City, Zhejiang Province, within the existing Jinju factory complex. Project nature: Renovation. Construction content and scale: Introduce the most advanced domestic and international process technologies and equipment; build new production units for gasification, shift reaction, methanol washing, liquid nitrogen washing, ammonia synthesis, as well as various auxiliary facilities; replace the outdated fixed-bed gasification and ammonia synthesis systems currently in use; improve the intrinsic safety of the facilities as well as the level of production automation and intelligence; and reduce energy and material consumption. Upon completion, the project will have a production capacity of 250,000 tons of synthetic ammonia per year and 100,000 tons of methanol per year.