Ethylene, one of the largest chemical products in the world, is regarded as the "mother of petrochemical industry" as the basic raw material of petrochemical industry.Ethylene industry is the core of petrochemical industry, ethylene products account for more than 75% of petrochemical products, Occupying an important position in the national economy.Ethylene production has been regarded as one of the most important indicators to measure the development level of a country's petrochemical industry in the world.
Statistics show that ethylene production in the world reached 151.97 million tons in 2017. The petrochemical enterprises can be quite successful in 2017. For example:
Dushanzi Petrochemical Company ethylene production reached 1.3215 million tons, an increase of 13,500 tons over 2016, a new record high, and won the No. 1 nationally.
Fujian United Petrochemical ethylene annual output exceeded 1.2 million tons mark last year, total production of 1,200,600 tons of ethylene, ethylene industry chain sales of 17 billion yuan, following the breakthrough in 2016 1.1 million tons, a new record high.
Daqing Petrochemical ethylene production reached 1,158,300 tons, exceeding the annual plan of 58,300 tons, also hit a record high.
The yield of ethylene in Qilu Petrochemical completed 34.32%, the yield of diolefins completed 48.35%, and the high recovery rate completed 61.08%, all of which were better than the annual plan and markedly improved over 2016.
Yangzi Petrochemical ethylene Nissan long-term maintained at 2300 tons of high load, January 24, single-day output reached 2390 tons, setting a new high since the operation of ethylene plant a new record.
It can be said that in 2017 alone, the major petrochemical enterprises have gained a bumper harvest! And look at the reasons for its harvest, according to the analysis of China Plastics Machinery Network, are inseparable from its effort in the ethylene plant.
It is understood that the reason why Dushanzi Petrochemical ethylene production won the first in the country, the key is Dushanzi commitment to ethylene plant 'full', 'eat well' in order to achieve ethylene production. First, let ethylene plant 'full' outside 853,000 tons of ethylene raw materials were purchased, an increase of 9.2% over the previous year; the other is to make the ethylene plant 'eat well', promoting the lignification of cracked raw materials and the proportion of light-weight products reaching 25.86%; third, letting the ethylene plant 'weigh' The new district load rate increased by 1.55% over the previous year; Fourth, ethylene plant 'long-distance running' to ensure long-term plant operation.
It is understood that the company set up a special task force in cracking furnace operation, three ethylene operation, the key water cooler operation, circulating water management and other aspects of research, the introduction of new technologies, Constantly overcome difficulties, to ensure the stability of the ethylene plant, efficient operation.
Daqing Petrochemical established a three-level optimization system for companies, branch factories and workshops to continuously improve the output of high value-added products. Through the optimization of relevant parameters such as COT and dilution ratio in cracking furnace, ethylene production and efficiency increased by 65.93 million yuan. The tail gas recovery , Led off the pentane tower and stripper two off-gas to the cracking of three sets of recovery device, efficiency of 5.85 million yuan; optimize the operation of a pyrolysis unit, a reasonable control of hydrogen purity, to achieve efficiency of 4.22 million yuan ...
Qilu Petrochemical Olefins Plant adhere to the 'good indicators to the high efficiency of' work train of thought, and clear the 'target to further enhance the' theme. Optimize the raw materials from the olefin plant started to increase the input of light materials, especially LNG Ethane and other raw materials input hit record highs alkene plant in ensuring the safe operation of cracking furnaces, compressors and other key equipment on the basis of crack depth control and other technical means, do a good job of efficient operation of the device during the 2017 overhaul, olefin plant Efforts were made to complete a number of technical renovation projects such as the excellent raw material cracking of ethylene raw materials and provided favorable conditions for the improvement of the indices.
Yangzi Petrochemical Olefins Plant optimized the operating combination of cracking furnace to improve the input ratio of high-quality raw materials and improve the operation efficiency of cracking system so as to keep the ethylene production at a high load of 2,300 tons for a long period of time. The Company seized the market opportunity and established the operation strategy of maximizing ethylene production, Around the increase of ethylene to run the device to optimize the portfolio.
Through the technical research on ethylene plant, all enterprises have ensured the stable and efficient operation of ethylene plant and realized the increase of ethylene production. Combining the synergistic factors of several large petrochemical companies, it is crucial for ethylene plant to eat well.