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China's fast transformation and upgrading of product quality into orbit

China's fast transformation and upgrading of product quality into orbit

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-03-31 14:57
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China's fast transformation and upgrading of product quality into orbit

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-03-31 14:57
  • Views:
Information

Our country has become the world's second largest oil refining, but oil product quality upgrading faces many difficulties. Because our country oil refining device structure is different from foreign countries, unable to draw lessons from European and American countries technical route, therefore must develop independent intellectual property rights technology, synchronization to reduce sulfur and olefin content in FCC gasoline and keep octane number three goals, to meet the needs of the oil product quality upgrading.

Recently, China's oil enterprises association, China's oil and gas industry development research center released the "2016 China's oil and gas industry development analysis and outlook report blue book, according to the end of 2015 China's total capacity of 503 million tons/year, become the second only to the United States the world's second largest oil refining. Today, China's fast transformation and upgrading of product quality into orbit.

Because our country oil refining device structure is different from foreign countries, accounts for heavy oil catalytic cracking is bigger, lead to motor gasoline components in our country, catalytic cracking gasoline accounted for as high as 74%. FCC gasoline desulfurization and olefin reduction is needed to achieve clean oil standards. In addition, the olefins in FCC gasoline is the main contributor to gasoline octane rating label (gasoline). In the process of conventional hydrodesulfurization, olefins are easy to be saturated alkane, thereby causing loss to the gasoline octane number, cause the oil to reach Ⅴ Ⅳ, countries standards.

Upgrade of gasoline quality in our country, therefore, need to be synchronized realize reduce sulfur and olefin content in FCC gasoline and keep octane number three goals, unable to draw lessons from European and American countries technical route, must develop their own intellectual property rights technology. By contrast, to upgrade to the same standards, product upgrading in China is facing a much more difficult than abroad.

Oil product quality upgrading is a vital event, the country is an urgent need to improve product quality, to provide economic and efficient gasoline quality upgrading technology. Joint the China university of petroleum, China petrochemical research institute based on national 973 projects, national natural science fund project, and the Chinese oil group major r&d projects, after 12 years of research, the independent innovation development of the desulfurization, olefin reduction and maintaining octane catalytic gasoline clean technology, and relying on engineering construction company in east China design branch, and dalian branch, in yumen petrochemical, dagang petrochemical, petrochemical and other large-scale application, effectively meet the needs of product upgrades.

Product upgrades, deep desulfurization is the key. According to the characteristics of high sulfur content of catalytic gasoline, the r&d team to develop the "whole fraction catalytic gasoline hydrogenation beforehand - heavy gasoline cutting - heavy gasoline selective hydrogenation desulfurization desulfurization - relay" segmented hydrogenation desulfurization technology, realizes the different catalytic gasoline selective removal of sulfur compounds.

Because each refinery catalytic gasoline sulfur and olefin content and octane number difference is very big, how to meet the diversified demand? R&d team according to the different nature of refinery catalytic gasoline and product quality requirements, the segments desulfurization, etherification and olefin aromatization organic coupling octane value (recovery) technology, has formed three kinds of process model, to meet the needs of the refinery gasoline quality upgrading.

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