Technique for removing polycyclic aromatic hydrocarbon components in heavy oil product
A technology for condensed aromatic hydrocarbons and heavy substances, which is applied in the technical field of removing condensed aromatic hydrocarbon components in heavy oil products, can solve the problems of low yield of final products, low content of condensed aromatic hydrocarbons, etc., and achieves good hydrogenation effect. , the effect of high yield
Inactive Publication Date: 2015-09-16
SINOPEC JINLING PETROCHEMICAL CO LTD +1
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Problems solved by technology
[0006] Purpose of the invention: The purpose of the present invention is to solve the problems in the prior art that the removal of condensed ring aromatic components in heavy oil products requires low raw material content of condensed ring aromatics and low yield of final products, and provides a raw material starting Process for removing condensed ring aromatics from heavy oil with high content of fused ring aromatics and high final product yield
Method used
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Effect test
Embodiment 1
[0019] Add 80g of heavy oil and 24g of Pd-Pt / Yb / USY molecular sieve catalyst into a 500mL reaction kettle equipped with a stirrer, electric heater, thermocouple and pressure controller, discharge the air inside with nitrogen, and set the stirring in the kettle The rate is 300r / min, the reaction temperature is 300°C, feed fresh hydrogen to 10.0MPa, after 4 hours of reaction, pass cooling water until the temperature in the kettle drops to 80°C, discharge the residual gas, open the kettle to take out the material, filter out the catalyst particles, 79 g of liquid product was obtained and tested for fused-ring aromatics content.
Embodiment 2
[0021] The steps are the same as in Example 1, except that the reaction time is 6 hours to obtain 78g of the final liquid product.
Embodiment 3
[0023] The steps are the same as in Example 1, except that the reaction temperature is 340° C. to obtain 79 g of the final liquid product.
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The invention discloses a technique for removing polycyclic aromatic hydrocarbon components in a heavy oil product, which comprises the following steps: adding a Pd-Pt / Yb / USY molecular sieve catalyst and the heavy oil product into a reaction kettle, and expelling inside air with nitrogen; setting the stirrer speed, reaction temperature and reaction pressure; introducing hydrogen to perform hydrogenation reaction; and after the reaction finishes, cooling, discharging gas, opening the kettle to take the material, and carrying out vacuum filtration to remove the catalyst granules, thereby obtaining the hydrogenation product. The heavy oil product is subjected to selective hydrogenation to produce the high-added-value noncarcinogenic environment-friendly rubber processing oil. The technique has favorable hydrogenation effect, and the polycyclic aromatic hydrocarbon content in the product can be lowered to 3.0% below from 32% in the raw material. The liquid product yield is high, and is 95% above. The technique can process the inferior petroleum processing leftovers into the high-added-value environment-friendly petroleum chemical product.
Description
technical field [0001] The invention belongs to the field of petroleum processing, and in particular relates to a process for removing polycyclic aromatic hydrocarbon components in heavy oil products. Background technique [0002] Polycyclic aromatic hydrocarbons mainly refer to components with three or more benzene rings directly connected, such as benzanthracene Benzofluoranthene Dibenzanthracene Bend Benzopyrene Benzoperylene Indenopyrene Wait. Taking benzanthracene as an example, the main reaction mechanism is as follows: [0003] [0004] The selective hydrogenation process of fused-ring aromatics involves many complex chemical reactions, including partially saturating three or more directly connected carcinogenic aromatic rings to form indirectly connected non-carcinogenic aromatic hydrocarbons, or continuing to saturate to produce monocyclic or bicyclic aromatic hydrocarbons, such as The main reaction; in the side reaction, the intermediate product i...
Claims
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IPC IPC(8): C10G45/54
Inventor 杨基和邢献杰崔文龙唐超顾磊磊顾幸姜巧
Owner SINOPEC JINLING PETROCHEMICAL CO LTD
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