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Ethylene production capacity is an important indicator to measure a country's petrochemical development level
.
"Faucet" technology is controlled by people
"Faucet" technology is controlled by peopleThe petrochemical industry is the pillar industry of the national economy, and the ethylene plant is the "leader" of the petrochemical industry
.
"However, in 1983, China's ethylene production capacity was only 620,000 tons, which is negligible compared with the huge market demand.
The development of China's ethylene industry has a huge and urgent market demand for ethylene complete technology
.
Technical difficulties are attacked one by one
Technical difficulties are attacked one by oneEthylene plant is one of the plants with the highest technological content, and there are many technical difficulties
.
"To overcome such a 'leading' technology, we must concentrate the superior forces of the entire group and go all out
.
During this period, with the strong support of the Ministry of Science and Technology, the National Development and Reform Commission and other ministries and commissions, six key technologies such as cracking, separation, catalyst, and major equipment development, as well as green and high-efficiency ethylene complete sets of technologies have been set up in the country.
It has successively organized 121 development projects to tackle key problems, of which 10 key projects have been incorporated into Sinopec's "Ten Dragons" project
.
Innovative exploration and comprehensive success
Innovative exploration and comprehensive success"After more than ten years, we have created a complete ethylene technology research and development platform through single breakthrough, complete set of technology development, continuous improvement and comprehensive crossing of 4 stages, developed 20 models covering the whole process, and comprehensively conquered cracking, separation, Catalysts, major equipment and engineering technical problems have made comprehensive breakthroughs in key technologies of the whole process
.
The project has innovatively developed super-large long-cycle high-efficiency series cracking furnace technology.
The operation period of the largest 200,000-ton/year ethylene cracking furnace in China has been extended by more than 50%.
The furnace technology and equipment can be exported as a whole; the first high-efficiency separation technology with fractional condensation and fractionation tower and distribution separation as the core has realized the efficient synergistic coupling of mass transfer and heat transfer, and the loss of ethylene in the tail gas of the 1 million-ton ethylene plant in operation has been reduced by 70%.
% or more, the power consumption of the refrigerator can be saved by 5% to 7%; the high-performance whole-process catalyst has been innovated, and the removal of impurities with low cost, low energy consumption and high selectivity has been realized, and the export has been realized; the green and high-efficiency series of special technologies have been innovated, It has realized energy saving, consumption reduction, emission reduction and efficiency enhancement of ethylene plant; it has taken the lead in developing compressor units and cold boxes for major equipment of 1 million tons of ethylene, and the cracked gas compressor and propylene refrigeration compressor have been successfully applied to 1.
2 million tons/year ethylene plant
.
Frequent success in promoting applications
Frequent success in promoting applications While the achievements in innovation and exploration are outstanding, the promotion and application of the achievements are also frequently reported
.
The complete set of technologies has been promoted and applied in 12 sets, with a total ethylene production capacity of 9.
73 million tons, and 167 cracking furnaces with a production capacity of 17.
29 million tons
.
Among them, only Wuhan Petrochemical and other three companies that have adopted this complete set of technology have increased their profits by 8.
453 billion yuan in the past three years
.
It is estimated that the 12 sets of ethylene plants using this complete set of technology will drive the output value of downstream related industries to exceed one trillion yuan, with significant economic and social benefits and milestone significance
.
The innovative exploration and application practice of green and high-efficiency million-ton ethylene complete sets of technologies have also been unanimously recognized and highly praised by domestic and foreign counterparts
.
An international well-known ethylene patent dealer commented that "CBL cracking technology is at the international leading level"; user SK Company of South Korea commented that the Wuhan ethylene plant applying this complete set of technology "has reached the international leading level"; the appraisal opinion of China Petroleum and Chemical Industry Federation believes that "green The high-efficiency million-ton ethylene package technology is generally at the international leading level
.
"
In 2018, China's ethylene production capacity was 25.
24 million tons, ranking second in the world, but compared with the demand of 47.
2 million tons, the self-sufficiency rate was only 50%
.
It is estimated that in 2025, China's ethylene production capacity will reach 42 million tons, and the self-sufficiency rate will be 66.
7%, which still cannot meet the needs of national economic development
.
The development of China's ethylene industry has a huge market demand for complete sets of ethylene technologies
.
"Although methanol to olefins has developed rapidly in the past few years, steam cracking of hydrocarbon feedstocks will still be the mainstream process for ethylene production for a long time to come.
market space
.
" Wang Zizong said
.
