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Shale oil producing process

A processing method and shale oil technology, applied in the petroleum industry, the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of low product yield, immature ebullated bed process, and acid slag generation

Active Publication Date: 2007-11-07
黄玉豹 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: complex process flow and high investment; at the same time, due to the use of hydrochloric acid to produce acid slag, which pollutes the environment, it is necessary to use acid-resistant materials
The disadvantages of this patented method are: too many hydrogenation processes, high hydrogen consumption, high operating costs, and high construction investment
Its disadvantages are: the use of two-stage all-hydrogen technology, high hydrogen consumption, high operating costs, high construction investment; and the fluidized bed technology is not mature enough
The disadvantages of these methods are: the product yield is low, and pollutants such as acid slag and alkali slag are generated during the processing.
[0010] The method adopted in the present invention for deep conversion of shale oil by the combination process consisting of hydrotreating process and hydrogenated heavy oil catalytic conversion process has not been reported

Method used

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  • Shale oil producing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The properties of the raw material full distillate shale oil are shown in Table 2. After mixing shale oil and hydrogen, it enters the hydrotreating reactor of the hydrotreating unit, and contacts with the hydrotreating agent and the hydrotreating catalyst. The hydrogen partial pressure is 7.0MPa, the reaction temperature is 370°C, and the total volume space velocity is 0.4h. -1 Under the operating conditions of hydrogen oil volume ratio of 1200:1, hydrotreating is carried out, and the obtained hydrogenation reaction product is separated to obtain impurity gas (H 2 S, NH 3 ), dry gas (C 1 、C 2 ), liquefied petroleum gas (C 3 、C 4 ), gasoline fraction (C 5 -160°C), diesel fraction (160-350°C) and hydrogenated heavy oil >350°C. The distribution of hydrotreated products and the main properties of the products are shown in Table 3.

[0079] The preparation method of the above-mentioned hydrogenation protecting agent and hydrogenation treatment catalyst can be found in...

Embodiment 2

[0087] Shale oil full distillate oil (same as Example 1) enters the hydroprocessing reactor after being mixed with hydrogen, contacts (same as Example 1) with hydrogenation protecting agent and hydroprocessing catalyst, is 7.0MPa, reacts at hydrogen partial pressure The temperature is 370°C and the volumetric space velocity is 0.4h -1 Under the operating condition of 1200:1 volume ratio to hydrogen oil, hydrogenation treatment is carried out, and the obtained hydrogenation reaction product is separated to obtain miscellaneous gas, dry gas, liquefied gas, gasoline fraction, diesel fraction and hydrogenated heavy oil of >350 °C. The distribution of hydrotreated products and the main properties of the products are shown in Table 5.

[0088] Hydrogenated heavy oil at >350°C is used as raw material oil for the catalytic conversion MIP-CGP process (see patents CN1232069A, CN1237477A and CN11245202A, etc.), using CGP-1 catalyst (MA is 64), the reaction temperature in the first reacti...

Embodiment 3

[0094] Shale oil full distillate oil (same as Example 1) enters the hydroprocessing reactor after being mixed with hydrogen, contacts (same as Example 1) with hydrogenation protection agent and hydroprocessing catalyst, is 15.0MPa, reacts at hydrogen partial pressure Temperature 370℃, volumetric space velocity 0.4h -1 Under the operating conditions of 1200:1 volume ratio of hydrogen and oil, hydrotreating is carried out, and the reaction products are separated to obtain products such as gasoline fraction, diesel fraction, and hydrogenated heavy oil >350°C. The distribution of hydrotreated products and the main properties of the products are shown in Table 7.

[0095] The hydrogenated heavy oil at >350°C is used as feed oil for catalytic conversion of DCC-I (patent same as Example 1) + auxiliary riser ARFCC process (see patents CN1219032C and CN1258581C), using CRP-1 catalyst (MA is 62). The heavy oil pipe reactor (DCC-I technology) has a reaction bed temperature of 545°C and ...

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Abstract

The present invention relates to shale oil processing procedure, which includes the steps of hydrogenating shale oil to obtain hydrogenated shale oil; separating into heavy hydrogenated shale oil and light product; catalytically converting the heavy hydrogenated shale oil to obtain dry gas, liquefied gas, gasoline, diesel oil and catalytic heavy oil; and returning the diesel oil to the hydrogenating step. The shale oil processing procedure has the advantages of high light product yield and high product quality.

Description

technical field [0001] The invention relates to a processing method of shale oil, in particular, the invention relates to a deep conversion method of shale oil, which is composed of a shale oil hydrogenation treatment process and a hydrogenated heavy oil catalytic conversion process. Background technique [0002] In the dry distillation process of kerogen shale, the organic matter in kerogen shale is heated and decomposed to generate shale oil. Depending on the origin, the oil content of kerogen shale varies from 3.5% to 19%. The reserves of kerogen shale are very rich. The proven kerogen shale is converted into more than 400 billion tons of shale oil, and the shale oil reserves are more than five times the proven oil reserves. With the dwindling of oil resources, the development and utilization of shale oil is becoming more and more important as a potential oil substitute. China is also rich in oil shale reserves, equivalent to more than 16 billion tons of shale oil, ranki...

Claims

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Application Information

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IPC IPC(8): C10G1/06
Inventor 黄玉豹林方袁士杰何巨堂李季
Owner 黄玉豹
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