Yangzi Petrochemical's scientific and technological strength empowers waste reduction and efficiency enhancement

Since the beginning of this year, Yangzi Petrochemical has vigorously promoted technological research and technological innovation, actively carried out clean production audits focusing on solid waste reduction and recycling, and focused on solving solid waste, especially hazardous waste.
Difficulty in transfer, high management cost, and blocking points
.

In July, the company has officially launched the creation of a "no-waste enterprise".
It is expected that by the end of 2023, the level of solid waste reduction, recycling and harmlessness will be greatly improved, and the company's standardized environmental management assessment results will reach A level
.

Introduce new equipment to slim down the sludge

In order to maximize the reduction of waste at the source, the company actively conducts internal exchanges in the industry
.
At the beginning of March this year, a two-way self-cleaning dryer was successfully introduced, and a new type of steam drying technology was used instead of the original electric heating to treat the liquid sludge.
utilization
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Applying new technology to "re-employ" spent catalysts

Following the principle of waste recycling, Yangzi Petrochemical is trying to separate and return the low-magnetism catalyst with short usage time, low heavy metal content, high activity and selectivity from the spent catalyst and return it to the device for use
.
Compared with the previous treatment method of using outsourced low-magnetism agent to reduce the amount of fresh agent used, on the one hand, it reduces the disposal amount of waste catalyst as hazardous waste, and on the other hand, it also avoids the need for outsourced low-magnetism agent to come from different devices.
The adverse effects of waste separation, quality and index differences on the operation process
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Relying on new installations to grow "responsible fields" for waste disposal

In addition to reducing the amount of waste generated at the source, Yangzi Petrochemical has also carried out a lot of work to improve the quality and efficiency of waste utilization and disposal processes
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Relying on the delayed coking unit of the refinery, the company has established a normalized utilization and disposal channel for low-risk hazardous wastes such as waste amine liquid and sewage scum; Plant circulating water or sewage treatment device, timely recycling of waste inorganic acid and alkali generated in the laboratory
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At the same time, the “Solid Waste Management” module of the “Smart Environmental Map” management and control platform was deeply developed to ensure the whole-process and all-dimensional management of solid waste in compliance with laws and regulations, and to strengthen the building of solid waste supervision and monitoring capabilities
.