A kind of heavy oil suspended bed hydrocracking process

A hydrocracking and suspension bed technology, applied in chemical instruments and methods, hydrocarbon oil cracking, petroleum industry, etc., can solve problems such as unsatisfactory desulfurization effect, achieve strong ability to inhibit coking, reduce gas phase yield, and reduce coke formation rate effect

Active Publication Date: 2019-08-09
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1227337, CN200510047529.X, CN201610555597.5, CN03133996.4, etc. disclose suspended bed hydrocracking catalysts, which have the characteristics of low cost, environmental friendliness, and high yield of light products, but the desulfurization effect is not ideal

Method used

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  • A kind of heavy oil suspended bed hydrocracking process
  • A kind of heavy oil suspended bed hydrocracking process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for hydrocracking of heavy oil suspended bed, the specific steps are:

[0039] 1) Preparation of catalyst: After mixing 20.00g of nickel-containing ore, 30.00g of tungsten-containing ore, and 25.00g of iron-containing ore (both are 60-mesh powder), carry out vulcanization treatment with a vulcanizing agent, which is carbon disulfide, and then mix with 25.00 g of 60-mesh ordinary zinc oxide powder was dry-blended, fully stirred, and evenly mixed to obtain Catalyst 1.

[0040] The vacuum residual oil is used as the reaction raw material, and the properties of the residual oil are shown in Table 1. From Table 1, it can be seen that the residual oil has a high content of aromatics, colloids, asphaltenes, and carbon residue, as well as a high content of metals and sulfur. Add 60.00g of vacuum residue and 700ppm catalyst to a 0.3L high-pressure reactor, and the reaction pressure is 11MPa; the reaction temperature is 400°C, the reaction time is 2h, the hydrogen-oil volu...

Embodiment 2

[0042] After roasting the three ores at 450°C, take 30.00g of nickel-containing ore, 22.00g of tungsten-containing ore, and 30.00g of iron-containing ore (both 80 meshes) and mix them evenly, and then use a vulcanizing agent for vulcanization treatment. The vulcanizing agent is carbon disulfide. Then 18.00 g was dry-blended with zinc oxide powder containing zinc-aluminum spinel structure, fully stirred, and mixed uniformly to obtain catalyst 2. The reaction raw material oil and process conditions are the same as in Example 1, and the reaction results are shown in Table 2.

Embodiment 3

[0044] After roasting the three kinds of ores and zinc oxide at 450°C, take 22.00g of nickel-containing ore, 18.00g of tungsten-containing ore, and 15.00g of iron-containing ore (all 100 mesh) and mix them evenly, and then use a vulcanizing agent for vulcanization treatment. It is carbon disulfide, and then dry-mixed with 45.00 g of zinc oxide powder containing zinc-aluminum spinel structure, fully stirred, and mixed uniformly to obtain catalyst 3. The reaction raw material oil and process conditions are the same as in Example 1, and the reaction results are shown in Table 2.

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Abstract

The invention discloses a method for suspended bed hydrocracking of heavy oil, wherein the method comprises the steps: mixing a low-quality heavy oil suspended bed hydrogenation catalyst and low-quality heavy oil evenly, then allowing the mixture to enter a suspended bed hydrogenation reactor, wherein the catalyst includes a zinc oxide powder and an ore component powder; and heating up to a reaction temperature, and carrying out a hydrogenation reaction, wherein the temperature of the hydrogenation reaction is 320-500 DEG C, the reaction pressure is 5-20 MPa, the reaction time is 0.5-4 h, thehydrogen and oil volume ratio is 100-2000 and the space velocity is 0.2-4.0 h<-1>. The technological method has strong adaptability to raw materials, can effectively reduce gas phase yield, and has the advantages of high conversion rate of the low-quality heavy oil, low coking yield, high desulfurization rate and good activity.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry and relates to a method for hydrocracking of heavy oil suspension bed. Background technique [0002] Inferior heavy oil is a general term for a class of difficult-to-volatilize and difficult-to-handle high-viscosity substances, mainly including: residual oil, shale oil, oil sand oil, heavy (thick) oil, super-heavy oil, deep oil, asphalt, coal tar, etc. The main characteristics of low-quality heavy oil are its high sulfur, high carbon residue, high nitrogen and high metal content, and it has a huge output and high processability, but the processing is difficult. [0003] The suspended bed hydrogenation process passes highly dispersed fine particle catalysts or additives together with feedstock oil and hydrogen through the reactor. It is a deep processing method for low-quality heavy oil with low investment and operating costs. High metal and impurity content, low-quality heavy oil t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/26B01J23/06B01J23/83B01J23/888
CPCB01J23/002B01J23/06B01J23/83B01J23/888C10G47/26C10G2300/201C10G2300/70
Inventor 鲍晓军白羽江莉龙王廷海岳源源袁珮
Owner FUZHOU UNIV
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