Fujian Yongrong 300,000 tons of adiponitrile passed the energy-saving review

The 300,000-ton/year adiponitrile project of Fujian Rongchen New Materials Co.
, Ltd.
, a subsidiary of Yongrong Holding Group, passed the energy-saving review of the Fujian Provincial Department of Industry and Information Technology
.

The project adopts the direct cyanation of butadiene to synthesize adiponitrile, and the low-pressure hydrogenation of adiponitrile to produce hexamethylene diamine
.
The project is equipped with high-efficiency and energy-saving equipment according to the technological process.
The main energy-using equipment is fans, pumps, transformers, motors, air compressors, chillers,
etc.

The project will build a new adiponitrile hydrocyanic acid co-production unit, hexamethylene diamine production unit, methyl pentanediamine production unit, ammonium sulfate production unit and other supporting equipment and facilities
.
After completion, the new annual output of 300,000 tons of hexamethylene diamine (main product), 300,000 tons of adiponitrile (intermediate self-use product), 186,000 tons of hydrocyanic acid (intermediate self-use product), 170,000 tons of ammonium sulfate (by-product), Production capacity of 50,000 tons of methylpentanediamine (by-product)
.

The project is planned to be completed and put into operation in December 2025.
After the project is put into operation, the annual new comprehensive energy consumption will be 591,083.
51tce (equivalent value) and 643,228.
29tce (equivalent value), including raw material energy consumption of 496,125.
96tce; of which, the annual power consumption will be 300,684,900 kWh, 333.
336 million m3 of natural gas (including 306 million m3 of raw material energy), 285.
6 million m3 of hydrogen (energy used for raw materials), 80,800 t of 3.
9MpaG440°C steam, 219,200t of 1.
4MpaG200°C steam, and 23,200t of 0.
6MpaG170°C steam At the same time, the external supply of 9.
8MpaG535 ℃ steam 63,200 t
.
The project's main product, hexamethylenediamine, has a comprehensive energy consumption per unit of 0.
3396tce/t, and the intermediate self-use product, adiponitrile, has a comprehensive energy consumption per unit of 0.
3394tce/t, both of which are higher than the energy efficiency levels of similar products of similar domestic production enterprises
.

The Fujian Provincial Department of Industry and Information Technology suggested that the main energy-consuming equipment should select high-efficiency energy-saving products with an energy efficiency grade of 1, optimize the energy-using process, and implement energy-saving technologies and measures into each link of project construction and production
.
Combined with the actual production process, energy-saving measures such as waste liquid incineration waste heat recovery and utilization, process industry intelligent production energy-saving optimization control based on edge computing are adopted to improve production efficiency and energy utilization rate, and achieve energy saving, consumption reduction and efficiency improvement
.