Shanghai Petrochemical achieves the goal of green parking for maintenance

Recently, the northern area of ​​Shanghai Petrochemical's No.

Make plans, grasp training, and plan ahead

When the device is shut down for maintenance, it must be purged and steamed, the valve must be disassembled, and the equipment must be opened.

Wei Kang, director of the No.

For towers, tanks, containers and other equipment, the devices carry out environmental risk identification one by one, and set process key points for each risk point, formulate corresponding measures, and form a series of environmental protection work plans.

According to these plans, the device has prepared in advance maintenance materials such as three-proof cloth, fire extinguishers, isolation belts, and fire hoses.

In order to ensure that the plan can be effectively implemented, No.

In addition, No.

Small team, guard the scene, process control

During the parking of No.

It turned out that the device introduced a work measure of "patrol inspection" of boundary VOCs every two hours.

Team member Li Qiang said: “We will ride our bicycles around the scene every day.

In addition, before each device is turned on, the VOCs detection of the team is also one of the conditions to confirm the opening.

Not only that, in order to ensure that responsibilities are assigned to groups and individuals, No.

Therefore, when the process is finished and the equipment is overhauled, the installations always come up with a stack of confirmation sheets: as large as each equipment, as small as flanges and gaskets, when to test, when to open, and how the specific situation is.

New equipment, new measures, and remarkable results

During the shutdown of No.

For example, in order to achieve green parking, the device changed the parking plan and added a "water wash" in the original cooking process.

　　For another example, during the parking of No.

　　A mobile VOCs treatment facility that quietly appeared in the aromatics tank area No.
4 also made great contributions to the environmentally friendly parking of the installation.
This equipment can introduce the higher concentration waste gas produced by the steamer into the equipment, and recover 92%~99% of the waste gas through the process of pre-cooling, cryogenic cooling, adsorption, etc.
The other small amount of gas enters the adsorption system and then is treated by activated carbon.
Reduced on-site VOCs emissions.
Since the No.
4 aromatics began to stop, this set of equipment stationed in the tank area of ​​the installation has successfully completed the task of waste gas collection and treatment.

　　(Jiang Shaojia Tang Nannan)