Targeting key problems to dig out benefits-Daqing Petrochemical No. 2 Plant to improve quality and efficiency

In the first 7 months of this year, Daqing Petrochemical No.
2 Plant focused on the problems and difficulties in production, carried out detailed research and targeted tackling problems, accurately solved the key problems restricting production and operation, and continued to build an "upgraded version" for improving quality and efficiency
.

The gasifier burner set a new operating record

The gasifier burner set a new operating record The gasifier burner set a new operating record

Butanol is an important raw material for the synthesis of fine chemical products, mainly used in the production of plasticizers, dehydrating agents, petroleum additives and synthetic fragrances
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At present, the market demand for butanol is strong, and Daqing Petrochemical No.

Ma Chunrui, deputy director of the butanol gas production workshop of the plant, introduced that in the production process, the key to ensuring the long-period operation of the butanol gas generator is the gasifier burner of the synthesis gas system that is responsible for the production of butanol raw materials
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Due to the complex tar composition of the raw material, the coke produced by the combustion often causes the local temperature of the burner to be too high, causing the burner to be damaged, repeated maintenance and replacement, and affecting the operation of the device

In order to prolong the service life of the burner of the gasifier, the second chemical plant established a research team to regularly collect the operating data of the burner for analysis and summary, exchange the actual experience and data accumulated on the spot with the burner manufacturer, and continuously improve the material of the burner
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"We are also constantly optimizing operating parameters, reducing the adjustment of the gasifier load, and limiting the water-oil ratio, oxygen-carbon ratio, and central oxygen ratio to avoid damage to the burner caused by improper operation,

As of August 16, the gasifier burner of the syngas plant of the plant has been in continuous operation for 271 days, setting a record for long-term domestic operation
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Technical optimization maximizes efficiency

　Technical optimization to maximize efficiency　Technical optimization to maximize efficiency

To achieve greater results, it is necessary to break through the existing bottlenecks and innovate the potential benefits of mining equipment
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To this end, members of the plant’s technical research team went to the site and "tailored" measures to improve quality and efficiency according to the actual production conditions of the device

　　The gas-phase hydrogenation method was used in the butanol gas production workshop before, and the crude octanol produced contained a small amount of unsaturation, which caused the octanol color to increase
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After demonstration, the workshop opened a liquid-phase hydrogenation system to further hydrogenate the gas-phase hydrogenation product to reduce the content of unsaturates, reduce the amount of octanol unit, and increase the yield of octanol products

　　Ma Chunrui introduced: “After the octanol liquid-phase hydrogenation system is put into use, the light component production of the octanol unit will be reduced by 240 kg per hour, and the heavy component production will be reduced by 139 kg per hour, which will increase the yield of octanol products.

Increased efficiency of 13.

　　The optimization and adjustment project of butanol isomers tower is also one of the projects for improving quality and efficiency
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Through continuous optimization of different loads and comparison and analysis of tens of thousands of data, the technicians in the butanol workshop have obtained the best operating parameters under different production conditions, breaking the operating habit of the butanol isomers tower that has not changed for 8 years

　　Fill the gap of domestic α-olefin products

Fill the gap of domestic α-olefin products Fill the gap of domestic α-olefin products

　　The 5,000-ton/year 1-hexene plant of the plant was completed and put into operation in 2008.
In order to effectively enhance PetroChina’s technological and industrial advantages in the field of alpha olefins, and to create new profit growth points for PetroChina, the company launched its alpha olefins in 2021.
Project expansion and renovation
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　　Relying on the existing facilities and technical equipment of the 1-hexene plant, the α-olefin project will be transformed into a plant capable of producing 1-hexene, 1-octene and decene products
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According to Wang Fusheng, director of the 1-hexene workshop, after the completion of the project, the production capacity will be 5,000 tons/year of 1-hexene, 2,500 tons/year of 1-octene, and 3,600 tons/year of decene

　　As a new installation, the equipment for the α-olefin project has been installed, the piping and the meeting point of the new and old areas are nearing completion, and the pipeline pressure test is being fully carried out, striving to complete the delivery by the end of August
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