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Combined hydrogenation treatment technology of high-metal high-sulfur high-nitrogen inferior heavy oil by use of catalyst

A technology for hydrotreating and inferior heavy oil, applied in the field of hydrogenation, can solve problems such as short operation period, and achieve the effects of reducing pressure drop, long device operation period and simple operation

Active Publication Date: 2013-09-11
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation period of this method is short, generally no more than 1 year

Method used

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  • Combined hydrogenation treatment technology of high-metal high-sulfur high-nitrogen inferior heavy oil by use of catalyst
  • Combined hydrogenation treatment technology of high-metal high-sulfur high-nitrogen inferior heavy oil by use of catalyst
  • Combined hydrogenation treatment technology of high-metal high-sulfur high-nitrogen inferior heavy oil by use of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 (the concentration % are all mass %)

[0050] use figure 1 The hydrogenation process combination shown includes 5 reactors, including 2 upflow deironization and decalcification reactors, 1 demetallization reactor, 1 desulfurization reactor and 1 denitrification reactor. The catalyst gradation and assembly scheme is adopted, and the hydrodeironization and decalcification catalyst, hydrodemetallization agent, hydrodesulfurization agent and hydrodenitrogenation agent are respectively filled in the reactor, and the adding ratios are 20%, 25% and 20% respectively. , 35%.

[0051] The up-flow deironization and decalcification reactor is filled with one kind of hydrodeironing and decalcification agent, numbered as DFC-1#, and the preparation method of the catalyst is as follows:

[0052] This embodiment uses cylindrical Al 2 O 3 As a carrier, a catalyst whose active metal components are Mo and Ni was prepared by unsaturated spray leaching method.

[0053] Weigh ...

Embodiment 2

[0068] use figure 1 The hydrogenation process combination shown includes 5 reactors, including 2 up-flow deironization and decalcification reactors, 1 demetallization reactor, 1 desulfurization reactor and 1 denitrification reactor, such as figure 1 shown. The catalyst gradation assembly scheme is adopted, and the hydrodeironization and decalcification catalyst, hydrodemetallization agent, hydrodesulfurization agent and hydrodenitrogenation agent are respectively filled in the reactor, and the adding ratios are 25%, 25%, and 20% respectively. , 30%.

[0069] The up-flow fixed-bed deironing and decalcifying reactor is filled with 1 hydrodeironing and decalcifying catalyst, numbered DFC-2#, and the preparation method is as follows:

[0070] Select Al for hollow cam shape 2 O 3 As a carrier, weigh 150 g of Al with a water absorption rate of 1.10 mL / g 2 O 3 Carrier, spray 50mL containing 8.6g ammonium molybdate (containing MoO 3 82%, Beijing Chemical Reagent Company) and 3...

Embodiment 3

[0078] use figure 1 The hydrogenation process combination shown includes 5 reactors, including 2 upflow deironization and decalcification reactors, 1 demetallization reactor, 1 desulfurization reactor and 1 denitrification reactor. The catalyst gradation and assembly scheme is adopted, and the hydrodeironization and decalcification catalyst, hydrodemetallization agent, hydrodesulfurization agent and hydrodenitrogenation agent are respectively filled in the reactor, and the adding ratios are 15%, 20% and 25% respectively. , 40%.

[0079] The up-flow fixed-bed deironing and decalcifying reactor was filled with one kind of hydrodeironing and decalcifying catalyst DFC-1#, and the catalyst was the same as that in Example 1.

[0080] The fixed bed demetallization reactor was filled with one kind of hydrogenation demetallization agent DM-2#, and the catalyst was the same as that of Example 1.

[0081] The desulfurization reactor is filled with one kind of hydrodesulfurization agent...

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Abstract

The invention provides a hydrogenation treatment technology of high-metal high-sulfur high-nitrogen inferior heavy oil and a catalyst grading combination. The technology comprises two up-flow type deferrization and decalcification reactors in series connection, a fixed-bed demetalization reactor, a fixed-bed desulfurization reactor and a fixed-bed denitrification reactor. According to the technology provided by the invention, through adopting a simple and flexible hydrogenation treatment flow, the aims of improving the hydrogenation and impurity removal ability of the catalyst and guaranteeing the operation cycle of the device are finally achieved.

Description

technical field [0001] The method of the invention can be used in the field of hydrogenation, and is especially suitable for the hydrorefining and hydroprocessing of heavy distillate oil and residual oil with high metal, high sulfur and high asphaltene content. The method of the present invention not only has high demetallization, desulfurization, denitrification and deasphaltene activities, but also has a longer operation period of the device. Background technique [0002] At present, the domestic and foreign oil market demand for light and medium oil products will continue to show a rising trend, while the demand for heavy oil products such as fuel oil will show a downward trend. In addition, due to the increasing pressure of environmental protection, countries have generally raised the quality standard requirements for petroleum products, especially gasoline and diesel products for vehicles. Under the above-mentioned market trends, the refining technology that can not on...

Claims

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Application Information

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IPC IPC(8): C10G65/04B01J23/883B01J23/882B01J37/02
Inventor 赵元生赵愉生张志国周志远刘元东那美琦谭青峰程涛
Owner PETROCHINA CO LTD
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