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Refinery gas combined processing method

A combined processing and gas technology, applied in the fields of hydrotreating process, petroleum industry, hydrocarbon oil treatment, etc., to achieve the effect of reducing operating energy consumption, reducing equipment investment, and reducing hydrogen consumption

Active Publication Date: 2019-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Application Information

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Problems solved by technology

[0006] In summary, the refinery gas hydrotreating process in the prior art is a gas phase reaction, and the lubricating oil hydrogenation is a liquid phase reaction. The two reaction types are completely different. Therefore, the refinery gas hydrotreating and the lubricating oil liquid phase reaction Combined hydrogenation methods have rarely been reported

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Embodiment Construction

[0037] The process and effect of the combined hydrogenation method of the present invention will be further described below in conjunction with the examples, but the following examples do not constitute a limitation to the method of the present invention.

[0038] A hydrogenation combination method of the present invention is specifically implemented as follows: the raw material oil 1 is mixed with the circulating oil 3, and the mixed material and hydrogen gas are mixed in the hydrogen dissolver 4 and then enter the lubricating oil hydrogenation reactor 7, and the lubricating oil hydrogenation reaction After the stream 9 is mixed with the refinery gas raw material in the gas dissolver 23, it enters the supplementary hydrogenation reactor 24, and the supplementary hydrogenation reaction effluent 9 enters the high-pressure separator 10, and is separated in the high-pressure separator 10 to obtain gas 17 and liquid, liquid Enter the low-pressure separator 11, separate gas 18 and l...

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Abstract

The invention discloses a refinery gas combined processing method which comprises the following steps: (a) mixing lubricating oil raw oil and circulation oil with hydrogen in hydrogen dissolving equipment and then sending into a hydrogenating catalyst bed layer in a lubricating oil hydrogenating reactor to react under the liquid-phase hydrogenating operation condition; (b) mixing reaction productflow obtained in step (a) with refinery gas and hydrogen in gas dissolving equipment and then sending into a hydrogenating catalyst bed layer in a supplementary hydrogenating reactor to react under the liquid-phase hydrogenating operation condition; (c) separating the hydrogenating reaction efflux of step (b) into a gas phase and a liquid phase, fractionally distilling the separated liquid phase to obtain naphtha, diesel oil and hydrogenated heavy distillate oil; (d) mixing the hydrogenated heavy distillate oil with hydrogen and then sending into a hydrogenating isomerization catalyst bed layer in a hydrogenating isomerization reactor to react to obtain a variety of lubricating oil base oil. The method can simultaneously hydrogenate refinery gas and produce lubricating oil base oil.

Description

technical field [0001] The invention belongs to the hydrogenation process of oil refining technology, and relates to a refinery gas combination processing method, in particular to a refinery gas hydrogenation treatment and a hydrogenation combination method for producing lubricating oil base oil. Background technique [0002] Lubricating oil is a non-volatile oily lubricant, which is blended with base oil and additives. The quality of base oil determines the evaporation performance, low temperature fluidity, high temperature thermal oxidation stability and viscosity temperature performance of lubricating oil. Base oil is not only the carrier of lubricating oil additives, but also the main body of lubricating oil. Compared with the traditional "three old" processes, the hydrogenation process can change the original hydrocarbon structure through the chemical reaction mode, and convert the rings, saturated hydrocarbons, aromatics, etc. in the oil into ideal components. The res...

Claims

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Application Information

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IPC IPC(8): C10G65/04
Inventor 刘涛姚春雷李宝忠张忠清吴长安乔凯
Owner CHINA PETROLEUM & CHEM CORP
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