Processing method by shale oil through catalytic cracking

A catalytic cracking and processing method technology, applied in the field of efficient utilization of shale oil resources, can solve the problems of high content and low conversion efficiency, and achieve the effects of short process, no hydrogen consumption, and low strength requirements

Active Publication Date: 2016-05-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the defects of low conversion efficiency in existing shale oil processing methods and the high content of sulfur, nitrogen and aromatics in fuel oil, provide a method that can efficiently convert shale oil raw materials into a large amount of light and clean fuel oil processing method

Method used

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  • Processing method by shale oil through catalytic cracking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] This example follows figure 1 The process was tested, using shale oil A with the composition shown in Table 1 as the raw material for catalytic cracking, the moving bed reactor and the regenerator were arranged side by side, and the CAT-2 catalyst was used, and water was used as the cooling medium in the adsorption zone. The heat exchange coil cools the sorbent. After being preheated at 220°C, the shale oil enters the bottom of the adsorption zone where the diameter of the moving bed reactor expands (the inner diameter of the reactor in the adsorption zone is twice the inner diameter of the reactor in the cracking zone, and the length of the reactor in the adsorption zone is 2 times that of the reactor in the cracking zone. 30% of the length of the reactor in the above-mentioned cracking zone), along with the water vapor fluidized medium flowing from bottom to top, at an adsorption temperature of 300°C, a weight ratio of cold catalyst to shale oil of 12, a pressure of 0...

Embodiment 2

[0086] according to figure 2 The process is tested, shale oil B is used as the raw material for catalytic cracking, the regenerator and the moving bed reactor are arranged vertically up and down, the CAT-2 catalyst is used, and a small amount of water is injected between the adsorption zone and the cracking zone as a cooling medium. After being preheated at 300°C, shale oil B enters the bottom of the adsorption zone where the diameter of the moving bed reactor expands (the inner diameter of the reactor in the adsorption zone is 5 times the inner diameter of the reactor in the cracking zone, and the length of the reactor in the adsorption zone is 10% of the length of the reactor in the cracking zone), along with the water vapor fluidized medium flowing from bottom to top, at 400°C of adsorption temperature, 6.0 of the weight ratio of cold catalyst and shale oil B, and a pressure of 0.35Mpa, the adsorption time Adsorption reaction is carried out under the condition of 120s to r...

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Abstract

The invention provides a processing method by shale oil through catalytic cracking. The method is characterized in that a moving-bed reactor is divided into an adsorption zone and a cracking zone, under non-hydrogen atmosphere, shale oil is introduced into the adsorption zone of the moving-bed reactor with low temperature, impurity such as a basic nitride, colloid and heavy metal can be absorbed and removed, and then the shale oil is introduced into the cracking zone of the moving-bed reactor and is contacted with a regeneration agent with high temperature and high activity for performing a catalytic cracking reaction. The invention provides the method for producing a lightweight product by the shale oil through direct catalytic cracking, and has the advantages of high shale oil conversion capability, low dry gas and coke, and high liquid yield.

Description

technical field [0001] The present invention relates to a processing method for catalytic cracking of shale oil, more specifically, to a method for catalytic cracking of shale oil by using a moving bed reactor to absorb and remove impurities in shale oil, which greatly improves the conversion rate of shale oil and reduces It improves the yield of dry gas and coke, so as to realize the efficient utilization of shale oil resources. Background technique [0002] Shale oil is the product of thermal decomposition of organic matter after thermal processing of oil shale. It is similar to natural petroleum, but contains more unsaturated hydrocarbons than natural petroleum, and contains non-hydrocarbon organic compounds such as nitrogen, sulfur, and oxygen. . The world's oil shale reserves are equivalent to about 400 billion tons of shale oil, far exceeding the total natural oil reserves; while my country's oil shale resources are very rich, with reserves of about 16 billion tons, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G55/06
Inventor 唐津莲龚剑洪李泽坤
Owner CHINA PETROLEUM & CHEM CORP
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