The butadiene rubber production line, as the largest butadiene rubber production base in the country, has actively responded to changes in domestic and international markets and taken the initiative in production and sales. In the first quarter of this year, the output of butadiene rubber exceeded the plan by 392 tons, the rate of premium-grade products increased by 1.72 percentage points compared to the same period last year, and cumulative profits exceeded 1 billion yuan, achieving dual growth in both quality and efficiency.
At the Second Rubber Products Operation Area of the Chemical Division of PetroChina Daqing Petrochemical, a bustling scene unfolds. In the finished product loading area, trucks fully loaded with butadiene rubber products line up in an orderly queue, awaiting shipment. Nearby, on the railway loading bridge, freight trains are ready to depart, destined for regions such as East China and South China.
Daqing Petrochemical adheres to the philosophy that "stable operation translates to significant benefits," continuously strengthening production management by limiting feedstock load adjustment fluctuations to within 5%. In response to the characteristics of the polymerization unit, the rate of load increase or decrease is controlled to below 1 cubic meter per hour. It is specified that the load can only be adjusted 20 minutes after catalyst adjustments have stabilized. Through this "slow and steady, step-by-step" adjustment approach, the operational stability rate of the unit has been elevated to over 99.8%.
In terms of equipment operation and maintenance, the technical team implemented precise measures. By optimizing methods such as reducing the width of the deflector plates in the washing tanks and adjusting the clearance of the cage bars in sections, issues like production fluctuations during the process were effectively resolved. This promoted stable single-shift production at around 85 tons, laying the foundation for exceeding quarterly production targets.
The Chemical Division of Daqing Petrochemical innovatively implemented a "small batch, high frequency" discharge operation method, raising the average purity of returned butadiene from 97.24% to 98.3%. This reduced the factors causing fluctuations in Mooney viscosity from the source, ensuring stable product quality. Building on this, technicians further narrowed the control range for the Mooney viscosity of finished products, maintaining the Mooney value of backup rubber tanks at a median level to reserve ample adjustment buffer space, thereby keeping product performance consistently optimal.
In the first quarter, the process capability index (CPK) for butadiene rubber products increased month by month, with the rate of premium-grade products significantly improving. Daqing Petrochemical is customer demand-oriented, implementing differentiated targeted shipping strategies by matching products and services with corresponding performance characteristics based on the needs of customers in different regions. A "one case, one strategy" response mechanism was established to quickly address feedback and suggestions from key clients and efficiently resolve issues during cooperation.
Simultaneously, the company proactively extended its service outreach by organizing technical personnel to conduct on-site research visits to downstream processing enterprises. This enabled timely adjustments to product performance parameters and service models, driving simultaneous improvements in customer satisfaction and market share. This approach transforms high-quality products into market advantages and profitability benefits.