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Shale oil one-stage in series hydrofining technological method

A technology of hydrorefining and process method, which is applied in hydrotreating process, petroleum industry, treatment of hydrocarbon oil, etc., can solve problems such as affecting the long-term operation of the device, and achieve the effect of improving the effect of hydrogenation reaction

Active Publication Date: 2014-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affect the long-term operation of the device

Method used

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  • Shale oil one-stage in series hydrofining technological method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Fushun shale oil at 180-380°C was used as the test sample, and its properties are shown in Table 1.

[0021] Table 1 Properties of 180~380℃ distillate oil (mass composition)

[0022] C / ％

[0023] The hydrofining catalyst in the first reactor is R-FF-26, the average reaction temperature is 220°C, and the volume space velocity is 3.5h -1 ; The hydrofining catalyst in the second reactor is FF-26, with an average reaction temperature of 360°C and a volume space velocity of 0.8h -1 The pressure of the first and second reactors is 8.0MPa, and the ratio of hydrogen to oil is 300: 1. The conventional one-stage process is adopted respectively (the conventional one-stage process refers to that two kinds of catalysts are packed in one reactor, and the operating conditions are the same as those of the second reactor of the present invention. , the volumetric space velocity is the total space velocity of two reactors of the present invention, the following examples are ...

Embodiment 2

[0025] The whole fraction of Fushun shale oil was used as the test sample, and its properties are shown in Table 2.

[0026] Table 2 Whole Fraction Properties (Quality)

[0027] C / ％

[0028] The hydrofining catalyst in the first reactor is R-FF-26, the average reaction temperature is 230°C, and the volume space velocity is 2.0h -1 ; The hydrofining catalyst in the second reactor is FF-26, with an average reaction temperature of 390°C and a volume space velocity of 0.6h -1 ; The pressure of the first and second reactors is 15.0MPa, and the ratio of hydrogen to oil is 800: 1. The conventional one-stage process and this process are respectively used for comparative experiments, and the results are shown in Table 4.

Embodiment 3

[0030] Fushun shale oil at 380-520°C was used as the test sample, and its properties are shown in Table 3.

[0031] Table 3 380~520℃ distillate oil properties (mass)

[0032] C / ％

85.63

H / ％

11.75

S / ％

0.45

N / ％

1.0675

[0033] The hydrofining catalyst in the first reactor is R-FF-26, the average reaction temperature is 260°C, and the volume space velocity is 1.0h -1 ; The hydrofining catalyst in the second reactor is FF-26, with an average reaction temperature of 420°C and a volume space velocity of 1.0h -1 ; The pressure of the first and second reactors is 10.0MPa, and the ratio of hydrogen to oil is 500: 1. The conventional one-stage process and this process are respectively used for comparative experiments, and the results are shown in Table 4.

[0034] Table 4 Experimental comparison data

[0035]

[0036] The comparative test data show that the denitrification effect is significantly improved by applyin...

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Abstract

The invention discloses a shale oil one-stage in series hydrofining technological method, which comprises the following step: shale oil raw material and hydrogen firstly exchange heat with thermal media to 200-280 DEG C, and pass through a first reactor by the volume per hour of 0.5h-1 to 4.0h-1, and high-voidage hydrofining catalysts are arranged in the first reactor; and materials flowing out of the first reactor directly pass through a second reactor by the volume per hour of 0.3h-1 to 1.0h-1 after being heated by a heating furnace, the average reaction temperature in the second reactor is 360-420 DEG C, and conventional hydrofining catalysts are arranged in the second reactor. With the method disclosed by the invention, the hydrogenation reaction effect is improved under the condition of ensuring the long-term stable operation of a shale oil hydrogenation device.

Description

technical field [0001] The invention relates to a shale oil hydrogenation process, which is used for processing shale oil whole distillates or shale oil fractions, saturated olefins, removing non-hydrocarbon components such as sulfur and nitrogen, and improving the quality of shale oil. Background technique [0002] Shale oil is a liquid product obtained by heating and decomposing kerogen in oil shale. In addition to many non-hydrocarbon compounds such as sulfur, nitrogen and oxygen, shale oil also contains a large amount of unsaturated hydrocarbons. Unsaturated hydrocarbons and non-hydrocarbon compounds in shale oil are the main reasons for the increase of oil colloid and the formation of sediment, which leads to poor stability and black color. Therefore, when producing light products from shale oil, it is necessary to remove non-hydrocarbon compounds and saturated olefins to ensure product quality. [0003] Hydrotreating is a process of catalytic upgrading of oil products...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/04
Inventor 苏重时姚春雷李景斌赵桂芳
Owner CHINA PETROLEUM & CHEM CORP
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