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China Petrochemical News Network reported recently, after the completion of the production of more than 5,400 tons of pipe material PPR4220, Guangzhou Petrochemical No.
1 polypropylene plant has been implementing continuous production plans for other products B1600, B1801, and H1201, and completed three conversions with high efficiency in four days.
Task
.
Since the catalyst used in the production of PPR4220 and B1600 is different, a transitional grade buffer is required
.
In this conversion, it is necessary to ensure the production of PPR4220 and reduce the production of transition materials to ensure the connection of the next production schedule.
"Adjust the initiator stroke, and then add a sample analysis to the test
.
" On September 7, Deputy squad leader Jia Yongshan found that the analysis data was a bit high, and immediately arranged an external exercise to make adjustments
At 16:50, as all data indicators have reached the conversion requirements, the operator officially cut the warehouse and converted to B1600
.
In the early morning of September 9th, after the production of 400 tons of B1600 product was completed as scheduled, the plant immediately began the conversion plan of another material, B1801
.
This grade requires more ethylene to be added to the second gas phase reactor to generate more rubber and improve the impact resistance of the product
"The amount of ethylene added by B1801 is relatively large.
Keep an eye on the temperature of the reactor
.
" At 0:25, technician Wei Jiasheng specifically explained the precautions for conversion
"First reduce the material level, the temperature of the reactor has a tendency to rise
.
" Although it is early morning, the temperature of the cooling water in the boundary has also increased by 0.
When a large amount of ethylene is added, the reaction volume of the reactor increases sharply, releasing a large amount of reaction heat, which has a greater impact on the stability of production
.
Due to the early judgment and early intervention by the operator, the control stability of the process of converting to B1801 is ensured
As of September 11, the B1801 was continuously packed in packaging and palletizing, and the output of 800 tons was intensively produced, and it was continuously transported from one section to the next
.
"The conversion to H1201 will begin in a few hours.
We must ensure that the financial index of B1801 is stable
.
" At 17:00 on September 11, Lu Jianjun, the regional director of polypropylene, reviewed the output of B1801 while calculating the nodes of the converted board material H1201.
At 23:00 on the 11th, as the operators adjusted the amount of hydrogen and ethylene added, the plant started the conversion plan of 1,500 tons of plate material H1201
.
With three production conversions in four days, the device takes advantage of the ship’s turnaround and has plans and measures to ensure a seamless connection during the high-frequency conversion period and fully meet market demand
.
(Huang Minqing, Ru Yun)
