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Up to now, North Huajin Chemical Industry Group Co.
, Ltd.
's ethylene plant cracking furnace online half-burner coking energy-saving research and application project has been operating stably for one year, with an annual profit of 9.
34 million yuan
.
It is understood that the company’s ethylene plant cracking furnace was originally designed as an operation mode of 4 furnaces running, 1 furnace standby, and the entire unit scorched
.
In order to increase the production capacity of the entire refining and chemical integration plant, starting from 2018, the ethylene cracking furnace was changed to a 5-boiler high-load operation mode, but when the cracking furnace was coking, the 5-boiler operation was changed to the 4-boiler operation, which not only reduced the load but also consumed a lot of steam.
In order to solve this problem, the company established a project scientific research team.
In 2019, the company innovatively proposed the online coking mode of half furnace of the cracking furnace, that is, without any additional investment, by cutting out half of the furnace when the cracking furnace reaches the end of its operation.
Coking, making the device 4 furnaces and half running, the load is the same as that of 5 furnaces, ensuring the high-load operation of the ethylene plant in the coking stage
.
In April 2020, the plant was successfully commissioned in a semi-operational trial with 4 furnaces
.
Compared with the scorching of the whole furnace, the operating conditions of the device have increased smoothly, increased the load, reduced energy consumption, and the scorching effect is good, which provides a guarantee for the continuous high-load operation of the subsequent system devices
It is reported that the online coking mode of half furnace of cracking furnace is the first new type of coking technology adopted in the normalization in China.
