Coal tar deep processing development direction

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Coal tar deep processing development direction

Time：2015-07-19 Source： Views：2245

Coal tar deep processing development direction

(coal tar cracking and extraction of gasoline and diesel)

China is a country with more coal less oil, The china’s crude oil import volume reached 212 million tons in 2010, reached 308 million tons in 2014,crude oil external dependence is more than 60%,energy become an important part of our country’s economic development.

With the oil energy’s exhaustion, every countries and regions are researching oil ’alternative energy, such as the europe use biodiesel instead of oil, united stated use hydrogen instead of oil, brazil use alcohol instead of oil. our country have rich coal less oil, the state supports the shenhua group invested tens of billions of yuan to research on coal as raw material to translate into diesel through vaporization or liquefied

China's coking industry develops very fast, drive the tar processing industry, in 2014 China's coking should recycle tar 10.8 million tons, the actual recovery of 8.4 million tons of tar. The latest development direction in the tar distillation separation of the mixture of anthracene oil as a raw material for hydrogenation modification, to each index of diesel oil, can increase the diversification of energy supply, relieve the tense situation of domestic gasoline and diesel oil supply.

Hydrogenation technology, is mainly refers to in the process of refining petroleum fraction for the hydrogenation reaction of raw material, namely under the presence of catalyst and hydrogen, oil distillate containing sulfur, nitrogen, oxygen and metal hydrogenation non-hydrocarbon component removal and olefins, aromatics hydrogenation saturation of the reaction. Hydrofining technology is currently one of the main means of improvement and improve the quality of oil products.

And because of the hydrogenation general requirements in 18 mpa, catalytic reaction under 400 ℃, harsh operating conditions, high investment, safety control and chain complex, hydrogen consumption, operation cost is high, and requires a secondary hydrogenation has a high concentration of acidic water processing, the new process using proprietary catalyst, at 550 ~ 820 ℃ temperature after tube furnace cracking reaction and separation, can meet the national standard of gasoline and diesel oil and aviation kerosene product.

The process of coal tar, tar, wash oil, anthracene oil of lower value product, this project use low value oil production strain of gasoline and diesel oil, its added value more than doubled, to create more benefit for the enterprise. China is recyclable 2.1 million hybrid anthracene oil, such as hydrogenation process, it can produce 2.8 million tons of diesel, relieve the tense situation of petroleum, and increase the profits of 10.4 billion yuan of above. So. Project implementation in domestic coal chemical industry and oil shale industry to play a leading role.

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