The reporter recently learned from the rubber plant of PetroChina Lanzhou Petrochemical Company that the plant has an annual output of 60,000 tons of styrene. Since it adopted the BL-628LD, an oil-soluble styrene efficient synergist, developed and produced by Beijing Spiro Technology Development Co., Ltd. , Has been continuously running for 2 months. Due to the adoption of this new product to replace similar imported products, the styrene plant can save more than 2.8 million yuan in energy efficiency.
In August 2011, the Spiral technicians combined the 60,000-ton/year styrene plant production process to design a complete set of oil-soluble high-performance synergistic polymerization inhibitor BL-628LD. The use results for more than two months showed that the styrene unit crude styrene overhead polymer decreased by 1.65% year-on-year, the energy consumption of the plant decreased by 1.5%, and the styrene yield increased by 1.02%.
According to reports, BL-628LD synergistic polymerization inhibitors have outstanding cost-effective advantages, breaking the pattern that foreign companies have long monopolized water-soluble styrene synergist polymerization inhibitors, and created a brand new oil-soluble styrene synergist inhibitor product system. . The water-soluble styrene synergist has disadvantages such as low freezing point, poor fluidity, strong corrosion and poor polymerization inhibition, while the solidification point of the BL-628LD product is lower than -35°C, which will completely change the water-soluble synergistic inhibitor. Blocking of pipelines due to crystallization during use in winter. After this product is used, the whole set filling system of the device does not need to use steam to mix heat, which not only saves the steam consumption but also eliminates the “running, running, dripping, and leaking†phenomenon of the device due to steam heating.
It is understood that during the production of styrene, due to the influence of operating conditions and the composition of unsaturated diolefin materials, serious towering, re-boilers and storage tanks often occur in the production process of styrene. Scale phenomenon, resulting in equipment and equipment have to switch frequently cleaning, or even stop maintenance, which has become a major bottleneck affecting the long-term stable operation of styrene equipment.
PetroChina Lanzhou Petrochemical Company's 60,000-ton/year styrene plant was completed in 1960. The original designed capacity was 4,373 tons per year, and it was later expanded to an annual production capacity of 60,000 tons. Because of the requirements of the reformed patented technology companies, the synergistic polymerization inhibitors used in this device have always been water-soluble products produced by US companies. Not only are they expensive, they also have to use steam to mix heat during winter use, which consumes a lot of energy and reduces the device. The effective processing capacity.
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