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Domestic largest aniline plant put into production at Tianji Group
On September 22, the Tianji Group successfully completed the construction and started production at its 130,000-ton-per-year aniline project, marking the launch of the largest domestic aniline plant. This milestone represents a major breakthrough in China's chemical industry, as the project employs advanced adiabatic nitration and liquid-phase hydrogenation technology—techniques that have never been used on such a large scale in the country before.
The project, which began construction in March 2005, focuses on producing high-quality MDI-grade aniline products. Key technologies and equipment were imported from Canada and the United States, ensuring the use of internationally recognized standards. The process involves benzene-based adiabatic nitration to produce nitrobenzene, followed by hydrogenation to generate aniline. With an annual design capacity of 130,000 tons of aniline and related products, the project is expected to generate around 1.5 billion yuan in annual output value based on current market prices. The total investment for the project reached 430 million yuan.
Aniline, a critical intermediate in the production of various chemicals, has traditionally relied on large-scale production to reduce costs and enhance competitiveness. However, existing domestic facilities have struggled with small capacities, outdated technology, and poor efficiency, limiting their ability to meet growing market demands. The new 130,000-ton plant not only offers superior production capacity but also incorporates advanced safety measures and cutting-edge technology, filling a significant gap in China’s aniline manufacturing sector. This development is expected to drive the industry toward more efficient and competitive large-scale production.