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On April 2, Yangzi Petrochemical's low-temperature ethylene storage unit completed the maintenance and elimination of heat exchanger E51.
The system was tested for single, no-load operation and load operation.
The operating indicators such as pressure, temperature and vibration coefficient were good.
The full-load material collection test can collect 17 tons of ethylene per hour, which makes this old device full of vitality and helps the company to overcome difficulties and achieve results in 100 days
.
The low-temperature ethylene plant of Yangzi Petrochemical was built in 1995.
It was the first low-temperature ethylene storage plant in mainland China at that time.
Its low-temperature storage tank T01 was known as "the first tank in China"
.
The device has been running continuously for 25 years, and the cooling effect is decreasing year by year.
Especially in the high temperature season, affected by the high ambient temperature, the full-load receiving capacity of the four refrigerators can only reach about 13 tons per hour, which cannot adapt to the ethylene plant.
Production and company operation needs
.
In order to improve the ethylene receiving capacity, since the second half of 2019, the storage and transportation plant has established a key research team to organize and implement a system-wide problem inspection of the low-temperature ethylene storage device, list out the rectification list, formulate solutions, and carry out deficiencies and maintenance one by one
.
The material receiving capacity of the low-temperature ethylene storage unit after the deficiencies elimination and reconstruction has been significantly improved.
It is estimated that the material receiving capacity can reach 16.
5 tons per hour under the high temperature environment in summer, which provides a strong guarantee for stabilizing the production of the company's ethylene unit and balancing ethylene materials
.
