The reporter learned from the chemical fertilizer plant of Jilin Petrochemical Company that the plant’s 300,000-ton ammonia plant delivered a satisfactory “report card” from January to July, and the output was increased by 3,855 tons compared with the same period of last year, and the consumption of residual oil was reduced by 3 kilograms over the same period. / Ton, overall energy consumption was 43 kg (standard oil)/ton lower than the same period, creating the best historical results of the three economic indicators, and writing a new record of continuous and stable operation for 310 days.

The person in charge of the device introduced that 300,000 tons of synthetic ammonia is a traditional inorganic chemical plant of Jilin Petrochemical. With the continuous advancement of technology, the factory has adopted the transformation measures such as changing the process route and adjusting the structure of downstream products to upgrade the core competitiveness of the “leading” syngas process route, and become Jilin Petrochemical’s best ability to compete and compete. The most powerful advantage of the product line.

The earliest synthetic ammonia plant was built during the “1st Five-Year Plan” period of the country, and it took the coal chemical route, and the supporting product was urea. With the continuous advancement of technology, the disadvantages of high energy consumption and high costs of such a process have seriously hampered the development of the enterprise, and production is in a state of deficit.

Jilin Petrochemical reformed the ammonia plant by adopting advanced technology at that time, turning the original coal chemical route into the use of the company's own self-made residual oil as raw materials, and at the same time optimizing the configuration of downstream products; and stopping the production of loss-making urea products. A part of ammonia synthesis equipment is used as a raw material for concentrated nitric acid equipment, and the other part is used as a raw material for acrylonitrile, butanol, and other devices, which extends the industrial chain and increases the added value of downstream products.

Compared with the old system, the newly-built ammonia plant was compressed from the past 1 system, 6 workshops to 1 workshop and 19 units; the equipment was reduced from more than 1650 units to more than 400 units; on-job staff In the past, 1,150 people had been reduced to 159. The energy consumption of installations has dropped drastically. Only one electricity consumption has been reduced from 1600 kWh to 92 kWh, saving 470 million kWh of electricity annually.

Since then, technicians of Jilin Petrochemical have solved the production bottleneck through continuous research, and realized the localization of the advanced foreign technology of the device.

They focused on solving 43 problems related to hydrogen dew point in the export of 2600 units of molecular sieves, succeeded in overcoming the bottleneck problem of long-period smooth operation of high-vacuum vacuum control devices for 700 units, and improved the vacuum of vacuum coolers by 40 kPa. It drops to 25 kPa.

The fluctuations in the production of ammonia plants are declining year by year, and the equipment operation shows a good situation of long-term, high-efficiency, and low-cost. In May alone, it achieved a saving of 69,800 tons and energy saving of 3,652 tons of standard coal.

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