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The client owns a facility that produces 150,000 tons of maleic anhydride annually. Harmless treatment is required for the off-gas generated during the maleic anhydride production process using n-butane and a small amount of waste liquid from the facility.

Solution

To meet client needs and address VOCs issues, Ruiding has adopted a combination of RTO+TO+heat recovery system in a multi-chamber thermal storage integrated incinerator. This setup ensures the harmless treatment of large volumes of low-concentration exhaust gases and waste liquids, comprehensively meeting customer requirements. The compact equipment structure minimizes the land footprint, effectively reducing the overall project investment. Additionally, by utilizing a waste heat boiler, the excess heat is converted into steam, further enhancing energy utilization efficiency.

This integrated incineration system not only resolves environmental pollution issues but also generates an economic benefit of approximately 135 million RMB annually for customers. Ruiding's n-butane waste gas heat storage incineration process holds a leading market share in China, with successful deployment in over 40 large-volume (>70000m3/h) heat storage incineration and steam recovery units.

Through Ruiding's professional engineering team and advanced technical solutions, we have successfully designed and implemented an efficient and environmentally friendly acetic anhydride production waste gas treatment system for our customers. This combined incineration process has not only achieved significant results in the harmless treatment of exhaust gases and waste liquids but has also created tremendous value for customers in terms of economic benefits. Ruiding will continue to dedicate itself to innovative research and development, providing various industries with more sustainable and intelligent environmental solutions, contributing to the construction of a clean and green future.