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Catalytic cracking processing method of shale oil

A catalytic cracking and shale oil 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 effect of simple operation, high conversion rate and short process

Active Publication Date: 2016-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 shale oil catalytic cracking processing method

Method used

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  • Catalytic cracking processing method of shale oil

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Effect test

Embodiment 1

[0064] This example follows figure 1 The process of the test was carried out, and the shale oil A shown in Table 1 was used as the raw material for catalytic cracking, and the test was carried out on a fixed-bed reactor. The two reactors were placed in parallel, and the diameter of the bottom of the reactor was expanded. Molten salt is used as a cooling medium to cool the catalyst (adsorbent, using CAT-1 catalyst). After being preheated at 200°C, the shale oil enters the bottom of the adsorption zone where the diameter of the fixed 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 flow medium flowing from bottom to top, the adsorption reaction is carried out under the conditions of 28...

Embodiment 2

[0078] In this embodiment, shale oil B is used as a raw material for catalytic cracking, and the test is carried out on a fixed-bed reactor. Two reactors are placed in parallel in parallel, and the diameter of the upper part of the reactor is expanded (the inner diameter of the reactor in the adsorption zone is the diameter of the cracking zone. 5 times of the inner diameter of the reactor, the length of the reactor in the adsorption zone is 30% of the length of the reactor in the cracking zone), and the heat-taking coil is set and adopts molten salt as the cooling medium to cool the catalyst (adsorbent, adopts CAT -1 catalyst). After being preheated at 300°C, shale oil B enters the top of the adsorption zone where the diameter of the fixed bed reactor expands, and flows from bottom to top along with the water vapor flow medium. The adsorption reaction is carried out under the condition that the adsorption time is 6 minutes, and impurities such as basic nitrogen compounds, sul...

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Abstract

The invention provides a catalytic cracking processing method of shale oil. According to the processing method, in a non-hydrogen atmosphere, shale oil is introduced into the adsorption area of a fixed bed reactor to adsorb and remove impurities in shale oil such as alkaline nitrides, colloids, heavy metals, and the like; then shale oil is introduced into the cracking area of the fixed bed reactor, and in the cracking area, shale oil is contacted with a regeneration catalyst to carry out catalytic cracking reactions. The provided method directly cracks shale oil in the presence of a catalyst to produce lightweight products and has the advantages of high shale oil conversion performance, low yield of dry gas and coke, and high yield of liquid product.

Description

technical field [0001] The present invention relates to the catalytic conversion method of shale oil, more specifically, relates to a kind of method that adopts fixed bed to first absorb and remove the impurity of shale oil and then catalytic cracking, improves the conversion rate of shale oil greatly and reduces dry gas and coke yield, 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, ranking fourth in the world. ...

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