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Sinopec News Network News has been continuously optimized.
As of July 15, the heavy naphtha yield of Guangzhou Petrochemical’s hydrocracking unit has been increased from 10.
8% to 17%, and the final boiling point has been gradually increased from 140 degrees Celsius to 155 degrees Celsius, which can increase production every month.
The heavy naphtha is nearly 3,000 tons
.
Affected by the market environment, the benefits of naphtha are relatively high.
Increasing the production of naphtha has become the direction of equipment optimization for the company to increase efficiency
.
Guangzhou Petrochemical’s hydrocracking unit is a "medium oil type" hydrocracking unit, which mainly produces jet fuel and diesel oil.
In order to ensure that the yields of white oil and unconverted oil remain basically unchanged, the plant personnel stabilize the operation of the reaction system, based on the optimization of the fractionation system, to increase the production of heavy naphtha
.
The equipment technicians first increased the extraction volume of heavy naphtha by raising the temperature at the top of the main fractionation tower by about 3 degrees Celsius, and the output of heavy naphtha increased by up to 4 tons per hour
On the basis of the initial results, the plant technicians did not meet the status quo, and increased the temperature at the top of the main fractionation tower by another 2 degrees Celsius to increase the yield of heavy naphtha
.
However, the heat load of the fractionation tower changed after the temperature increased.
There is no end to optimization.
Based on the results achieved in the previous few times of heating, the device tried to continue to raise the temperature by 1.
5 degrees Celsius
.
During the period, the increase in heavy naphtha production caused the range of multiple flow meters to exceed the upper limit, which affected the automatic control of the regulating valve and caused the tower's liquid level to be unstable
(Huang Minqing Wang Jiahai)
