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A suspension bed hydrocracking method

A technology of suspended bed and hydrogenation catalyst, which is applied in the fields of hydrocarbon oil cracking, hydrocarbon oil treatment, petroleum industry, etc. It can solve the problems of unsatisfactory desulfurization effect and high catalyst production cost, and achieve the ability to suppress coking, suppress temperature soaring, and reduce production The effect of focal ratio

Active Publication Date: 2019-06-07
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, CN201210041942.5, CN201610516189.9, CN201510417277.9, CN201510417279.8, etc. also involve a heavy oil hydrogenation catalyst containing bauxite ore; but the production cost of the catalyst in the above patented technology is relatively high, and the desulfurization effect is not ideal

Method used

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  • A suspension bed hydrocracking method
  • A suspension bed hydrocracking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 60.00 g of 60-mesh bauxite powder was vulcanized with a vulcanizing agent, the vulcanizing agent being carbon disulfide, and then dry-mixed with 15.00 g of 80-mesh zinc oxide powder, fully stirred, and evenly mixed to obtain Catalyst 1.

[0030]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 of the catalyst of Example 1 above into a 0.3L autoclave with a reaction pressure of 11MPa; the reaction temperature is 400°C, and the reaction time is 2h. After the reaction is completed, wait for the temperature to drop to room temperature , the liquid oil taken out was weighed, and the reaction results are shown in Table 2.

Embodiment 2

[0032] After mixing 40.00g of 80-mesh bauxite powder and 8.00g of 80-mesh cobalt-molybdenum-containing spent catalyst powder, carry out vulcanization treatment with a vulcanizing agent, the vulcanizing agent is carbon disulfide, and then dry-mix with 20.57g of nano-zinc oxide powder, fully stir, and mix Catalyst 2 was obtained after uniformity.

[0033] 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

[0035] After mixing 40.00g of bauxite powder and 8.00g of spent catalyst powder containing cobalt and molybdenum (both 120 meshes), carry out vulcanization treatment with a vulcanizing agent, the vulcanizing agent is carbon disulfide, and then oxidized with 20.57g of zinc-aluminum spinel structure The zinc powder is dry mixed, fully stirred, and the catalyst 3 is obtained after mixing evenly.

[0036] 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 suspension bed hydrocracking method which is prepared from an inferior heavy oil suspended bed hydrogenation catalyst and inferior heavy oil through mixing, wherein the hydrogenation catalyst comprises vulcanized bauxite and zinc oxide; the content of the zinc oxide is 1.0-50.0wt%; vulcanized bauxite powder and the zinc oxide are mixed in a dry manner; the temperature ofa hydrogenation reaction is 320-450 DEG C; the reaction pressure is 5-20MPa; the reaction time is 0.5-4 hours. The process method is good in raw material adaptability, high in inferior heavy oil conversion rate, low in green coke rate, high in desulfurization degree and good in activity.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry and relates to a suspension bed hydrocracking method. 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 that is difficult ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/02C10G47/04
CPCC10G47/02C10G47/04C10G2300/70
Inventor 岳源源郭小雪鲍晓军王廷海江莉龙白正帅
Owner FUZHOU UNIV
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