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A Two-Stage Slurry Bed Hydrogenation Process for Inferior Oil

A slurry bed and low-quality oil technology, applied in the field of coal chemical industry, can solve the problems of high hydrogen consumption and low liquid fuel yield, achieve low hydrogen consumption, improve yield and product quality, and increase hydrogenation conversion rate Effect

Active Publication Date: 2016-04-13
任相坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that in the prior art, when heavy and residual oils are hydrocracked, there is a problem of high hydrogen consumption and low yield of the prepared liquid fuel, and then to provide a method that can effectively improve heavy and residual oils. Hydrocracking method with high efficiency and low hydrogen consumption for residual oil hydrocracking

Method used

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  • A Two-Stage Slurry Bed Hydrogenation Process for Inferior Oil
  • A Two-Stage Slurry Bed Hydrogenation Process for Inferior Oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Purify the naphthenic acid heavy oil by dehydrating and removing impurities in the purification treatment equipment, and the water content of the dehydrated naphthenic acid heavy oil is less than 0.5wt%;

[0029] (2) Atmospheric distillation of the naphthenic acid heavy oil purified in step (1), cutting into light oil fractions 230°C;

[0030] (3) Combine the heavy oil fraction > 230°C in the step (2) with a hydrocracking catalyst, H 2 mixed, wherein the hydrocracking catalyst is a nanoscale material, its composition is 50wt% α-FeOOH, and the balance is γ-Al 2 o 3 , after mixing evenly, enter the first-stage slurry bed and the second-stage slurry bed in turn for two-stage hydrocracking reaction. The conditions of the hydrocracking reaction are as follows: the reaction temperature of the first-stage slurry bed is 350°C, The bed reaction temperature is 350°C, and other reaction conditions for the first-stage slurry bed and the second-stage slurry bed are: pressure 1...

Embodiment 2

[0033] (1) Purify the high heavy metal residue oil by dehydration and impurity removal in the purification treatment equipment, and the water content of the high heavy metal residue oil after dehydration is less than 0.5wt%;

[0034] (2) Atmospheric distillation of the high heavy metal residue after purification in the step (1), cutting into light oil fractions 230°C;

[0035] (3) Combine the heavy oil fraction > 230°C in the step (2) with a hydrocracking catalyst, H 2 mixed, wherein the hydrocracking catalyst is a nanoscale material, its composition is 50wt% α-FeOOH, and the balance is γ-Al 2 o3 , after mixing evenly, enter the first-stage slurry bed and the second-stage slurry bed in turn for two-stage hydrocracking reaction. The conditions of the hydrocracking reaction are as follows: the reaction temperature of the first-stage slurry bed is 400°C, The bed reaction temperature is 400°C, and the other reaction conditions of the first-stage slurry bed and the second-stage sl...

Embodiment 3

[0039] (1) Dehydration and impurity removal purification treatment of high heavy metal fuel oil is carried out in the purification treatment equipment, and the water content of high heavy metal fuel oil after dehydration is less than 0.5wt%;

[0040] (2) Atmospheric distillation of the high-heavy metal fuel oil purified in step (1), cutting into light oil fractions 230°C;

[0041] (3) Combine the heavy oil fraction > 230°C in the step (2) with a hydrocracking catalyst, H 2 mixed, wherein the hydrocracking catalyst is a nano-scale material, and its composition is 5wt%NiO, 30wt%WO 3 The balance is natural zeolite molecular sieve. After mixing evenly, it enters the first-stage slurry bed and the second-stage slurry bed for two-stage hydrocracking reaction. The conditions of the hydrocracking reaction are as follows: the reaction temperature of the first-stage slurry bed is 455 ℃, the reaction temperature of the second-stage slurry bed is 455°C, and the other reaction conditions ...

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Abstract

The invention provides an inferior oil two-stage slurry bed hydrogenation technology, and belongs to the coal chemical technical field. The inferior oil two-stage slurry bed hydrogenation technology comprises the following steps: (1) performing purification on inferior oil ; (2) performing decompression or atmospheric distillation on the inferior oil purified by the step (1) for cutting into light oil fractions lower than 230DEG C and heavy oil fractions higher than 230 DEG C; (3) mixing the heavy oil fractions higher than 230 DEG C of the step (2) with a hydrocracking catalyst and H2, mixing evenly, and in turn getting into a first stage slurry bed and a second slurry bed for two-stage hydrocracking reaction, and processing the prepared hydrocracking products by fractionation. A liquid fuel prepared by the inferior oil two-stage slurry bed hydrogenation process of has the advantages of low hydrogen consumption and high product yield.

Description

technical field [0001] The invention relates to a two-stage slurry bed hydrogenation process for low-quality oil, which belongs to the field of coal chemical industry. Background technique [0002] Petroleum is a non-renewable fossil resource. With the rapid development of the world economy, a large amount of petroleum resources have been consumed, and the underground reserves of crude oil have also decreased sharply. At present, high-quality crude oil is very limited, and more and more petrochemical companies have begun to process low-quality oil. Inferior oil includes heavy oil and residual oil, and its characteristics are mainly manifested in high sulfur content, high acid value, high density, high residual carbon value, high nitrogen content, and high heavy metal content. Processing low-quality oil brings greater safety and environmental challenges to petrochemical companies. [0003] At present, there are four types of hydrogenation processes for inferior heavy oil and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
CPCC10G67/14
Inventor 井口宪二坂脇弘二
Owner 任相坤
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