Guangdong Petrochemical's 600,000-ton alkylation unit and 1.1 million-ton gas fractionation unit are handed over!

On the morning of July 22, another good news came from the site of the Guangdong Petrochemical project.
The No.
1 Construction Company of the Engineering Construction Company, a member company of CNPC, built the largest single unit of the same type in China - the Guangdong Petrochemical Refining and Chemical Integration Project with a capacity of 600,000 tons per year.
The alkylation unit and the 1.
1 million tons/year gas fractionation unit will be handed over at the same time
.

So far, all 10 main units of the three joint projects have been successfully handed over, becoming the first joint plant in Guangdong Petrochemical to achieve full handover
.
As of July 23, 129 of the 155 main units undertaken by CNPC's participating member companies have been handed over to China
.

Among them, the three combined 600,000 tons/year alkylation unit is the largest alkylation production unit in the country
.
There are many kinds of imported pipes and fittings in this device.
Most of the pipes are inflammable, explosive and toxic media, and it is a Class A production device
.
Most of the process equipment in the device is high, large and heavy equipment, which poses a severe test to the site construction organization, construction safety and construction quality
.
The alkylation unit has 6 imported reactors, 3 imported acid settling tanks, and 51.
2 kilometers of process pipelines
.

The height of the isobutane removal tower and light hydrocarbon removal tower is more than 40 meters.
It is difficult to hoist after "dressing and wearing a hat" on the ground.
The imported nickel-based alloy pipeline has 5800 inches and 2605 welding joints.
Welding joints need 100% RT and PT testing, which requires extremely high welding requirements
.
The three joint project department overcame many difficulties, rationally organized the construction, and realized the smooth transfer of the alkylation unit
.

The 1.
1 million tons/year gas fractionation unit is the largest gas fractionation unit in China
.
The device adopts a conventional three-column process, including depropanization part, deethanization part, propylene rectification part and public works part.
The propylene rectification A/B double tower is the core equipment of the gas separation device
.
The two propylene rectification towers are about 80 meters high, each tower is 7.
2 meters in diameter, and the hoisting weight exceeds 1,300 tons, reaching a height of 87 meters
.
In the case of the 18-day delay in the arrival of the twin towers, in order to keep the installation node "back wall from falling", the project department planned ahead of time and proactively completed the equipment transition as quickly as possible.
It took 10 days to complete the "dressing and hat" of the twin towers, and 3 days to hoist it into place, creating a new record for similar equipment from landing to being in place
.