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Processing method and system for inferior crude oil

A low-quality raw material oil and processing method technology, which is applied in the petroleum industry, hydroprocessing process, hydrocarbon oil treatment, etc., can solve the problems of difficult acid slag treatment, high energy consumption, environmental pollution, etc., and save gas-rich compressors, Reduced device energy consumption and simple operation

Active Publication Date: 2017-10-20
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0006] Non-hydrogenation treatment mainly adopts acid-base refining, such as patent Chinese patent CN101967389A, acid-base refining will not only produce a large amount of acid residue that is difficult to handle, pollute the environment, but also have a low yield of refined oil; although some researchers have explored the use of single solvent or Multi-solvent extraction and refining method, such as patent Chinese patent CN CN1746265A, but there are still problems such as large solvent consumption and high energy consumption
With the improvement of environmental protection requirements, the emission standards for light fuel oil combustion exhaust at home and abroad continue to increase, and the restrictions on the sulfur, nitrogen and aromatic content of light fuel oil for vehicles are lower, so it is very easy to use non-hydrogenation treatment. Difficult to meet

Method used

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  • Processing method and system for inferior crude oil
  • Processing method and system for inferior crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This example follows figure 1 The flow process of shale oil A is used as the raw material for catalytic cracking, and the test is carried out on a small-scale continuous regenerative fixed-bed reactor. meters, length is 0.15 meters, cracking zone II has a diameter of 0.02 meters and a length of 2.30 meters) and set the heat taking coil to use molten salt as cooling medium to cool the adsorbent; use CAT-1 catalyst as both adsorbent and catalytic cracking catalyst , The microreactivity (MAT) of the CAT-1 balancer is 62. After being preheated at 300°C, the shale oil A enters the top of the hydrogen adsorption zone I where the diameter of the fixed bed reactor expands. Ethylene, etc.) flows from top to bottom as a hydrogen-containing gas, H 2 The volume ratio of raw material oil is 400, and the hydrogen adsorption reaction is carried out under the conditions of adsorption temperature of 400°C, weight ratio of catalyst and inferior raw material oil of 4.0, and adsorption t...

Embodiment 2

[0073] This example follows figure 2 The flow process of the test is carried out, and the residual oil B is used as the raw material for catalytic cracking, and the test is carried out on a small-scale continuous regenerative fixed-bed reactor. , the length is 0.30 meters, the diameter of the cracking zone II is 0.02 meters, and the length is 1.15 meters), and the heating coil is set to use molten salt as the cooling medium to cool the catalyst; the CAT-1 catalyst is used as the adsorbent and catalytic cracking catalyst at the same time, The microreactivity (MAT) of the CAT-1 balancer was 64. After being preheated at 260°C, the residual oil B enters the bottom of the hydrogen adsorption zone I where the diameter of the fixed bed reactor expands. Hydrogen-containing gas flows from bottom to top, H 2 The volume ratio of the raw material oil is 200, and the hydrogen adsorption reaction is carried out under the conditions of the adsorption temperature of 300 ° C, the weight ratio...

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Abstract

The invention discloses a processing method and system for inferior crude oil. The method comprises the steps as follows: a, feeding hydrogen-containing gas and the inferior crude oil into a hydrogen absorption zone (I) of a fixed bed reactor for contact with an adsorbent and a hydrogen adsorption reaction to obtain a hydrogen absorption product; b, feeding the hydrogen absorption product obtained in the step a into a cracking zone (II) of the fixed bed reactor for contact with a catalytic cracking catalyst and a catalytic cracking reaction to obtain catalytic cracked oil-gas. The inferior crude oil processed by the system with the method has the advantages that the conversion rate of the inferior crude oil can be increased substantially, the yield of dry gas and coke is reduced, and accordingly, clean and efficient use of the inferior crude oil is realized.

Description

technical field [0001] The invention relates to a processing method and system for inferior raw material oil. Background technique [0002] With the shortage of petroleum resources and the increasing demand for high-quality gasoline, diesel and low-carbon olefins, the processing technology of inferior raw material oils such as coal liquefied oil, oil sand oil, and inferior and heavy petroleum products has attracted more and more attention. Inferior raw material oil, coal liquefied oil, oil sand oil, etc., are similar to natural petroleum, but contain more unsaturated hydrocarbons than natural petroleum, and contain non-hydrocarbon organic compounds such as nitrogen, sulfur and oxygen, which not only affect their secondary processing use, but also affect the color and stability of gasoline and diesel products, with high sulfur and nitrogen content. At present, except for a small amount of production of chemicals, inferior raw material oil is mostly sold as light fuel oil wit...

Claims

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Application Information

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IPC IPC(8): C10G67/02
Inventor 唐津莲龚剑洪
Owner CHINA PETROLEUM & CHEM CORP
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