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Cleaning treatment method for waste petroleum catalyst

A clean treatment and catalyst technology, applied in the direction of improving process efficiency, etc., can solve the problems of failure to achieve comprehensive utilization of vanadium resources, oil cannot be used directly as a heat source, poor deoiling effect, etc., and achieve clean reuse, energy saving, The effect of reducing the generation of solid waste

Pending Publication Date: 2022-03-01
万循材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patented technology deoils by heating to 130-140°C, the oil removal rate reaches 30-40%, and then crushing + water immersion, the deoiling effect of this method is poor, and the oil after deoiling cannot be used directly as a heat source , the recovery rate of vanadium is only 82.4%, the recovery rate is low, and the tailings after vanadium extraction can only be treated as waste, and the purpose of comprehensive utilization of vanadium resources has not been achieved

Method used

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  • Cleaning treatment method for waste petroleum catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 Shown, a kind of cleaning treatment method of waste petroleum catalyst comprises the steps:

[0029] (1) Mix vanadium-containing steel slag and waste petroleum catalyst at a mass ratio of 50:100, then add a certain amount of sodium carbonate and mix, and stir to obtain a mixed material;

[0030] (2) Send the mixed material into the preheating kiln for preheating treatment, and the preheating temperature is less than 200°C;

[0031] (3) Send the preheated mixture into the combustion furnace for combustion and deoiling treatment at a temperature of 650°C and burn for 60 minutes;

[0032] (4) Send the mixed material through the deoiling treatment of the combustion furnace into the rotary kiln for roasting, and roast at 880° C. for 120 minutes to obtain roasted clinker;

[0033] (5) The roasted clinker obtained after being roasted in a rotary kiln is crushed to obtain clinker powder, and the clinker powder is supplied to the subsequent vanadium extraction...

Embodiment 2

[0037] A cleaning method for waste petroleum catalysts, comprising the steps of:

[0038] (1) Mix vanadium extraction tailings and waste petroleum catalyst at a mass ratio of 100:100, then add a certain amount of sodium carbonate to mix, and stir evenly to obtain a mixed material;

[0039] (2) Send the mixed material into the preheating kiln for preheating treatment, and the preheating temperature is less than 200°C;

[0040] (3) Send the preheated mixed material into the combustion furnace for combustion and deoiling treatment at a temperature of 600°C and burn for 50 minutes;

[0041] (4) Send the mixed material through the deoiling treatment of the combustion furnace into the rotary kiln for roasting, and roast at 850° C. for 120 minutes to obtain roasted clinker;

[0042] (5) The roasted clinker obtained after being roasted in a rotary kiln is crushed to obtain clinker powder, and the clinker powder is supplied to the subsequent vanadium extraction operation to obtain vanad...

Embodiment 3

[0046] A cleaning method for waste petroleum catalysts, comprising the steps of:

[0047] (1) Mix vanadium slag and waste petroleum catalyst in a mass ratio of 50:150, then add a certain amount of sodium carbonate to mix, and stir to obtain a mixed material;

[0048] (2) Send the mixed material into the preheating kiln for preheating treatment, and the preheating temperature is less than 200°C;

[0049] (3) Send the preheated mixture into the combustion furnace for combustion and deoiling treatment at a temperature of 650°C and burn for 60 minutes;

[0050] (4) Send the mixed material that has been deoiled by the combustion furnace into a rotary kiln for roasting, and roast at 800° C. for 90 minutes to obtain roasted clinker;

[0051] (5) The roasted clinker obtained after being roasted in a rotary kiln is crushed to obtain clinker powder, and the clinker powder is supplied to the subsequent vanadium extraction operation to obtain vanadium pentoxide.

[0052] The combustion ...

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Abstract

The invention discloses a waste petroleum catalyst cleaning treatment method, which comprises: (1) material mixing: uniformly mixing and stirring a waste petroleum catalyst and an auxiliary material to obtain a mixed material; (2) preheating treatment: feeding the mixed material into a preheating kiln for preheating treatment, wherein the preheating temperature does not exceed 200 DEG C; (3) deoiling treatment is conducted, specifically, the preheated mixed material is fed into a combustion furnace to be subjected to deoiling treatment, the deoiling temperature is 550-650 DEG C, the deoiling time is 30-60 min, and the deoiled mixed material is obtained; and (4) roasting: feeding the deoiled mixed material into a rotary kiln for roasting at the roasting temperature of 780-880 DEG C for 60-120 minutes to obtain roasted clinker, and recycling the roasted clinker as a resource. The treatment process is short, energy is saved, the problem of environmental pollution caused by direct outdoor combustion is avoided, the technical effect of clean roasting is achieved, and clean recycling of the waste petroleum catalyst is achieved.

Description

technical field [0001] The invention relates to the technical field of waste petroleum treatment, in particular to a method for cleaning and treating waste petroleum catalysts. Background technique [0002] Waste petroleum catalysts are waste petroleum catalysts that become invalid due to the adsorption of vanadium in petroleum during the refining and hydrogenation process of petroleum. Waste petroleum catalysts contain more useful metals such as vanadium, molybdenum, aluminum and nickel, and are important secondary solid waste resources. According to statistics, more than 1 million tons of waste catalysts are produced every year in the world. At present, a large amount of waste catalysts is dumped, which not only occupies land but also pollutes the environment. Therefore, no matter from the perspective of comprehensive resource utilization or environmental protection, the recovery of useful metals in waste petroleum catalysts is realized. , are of great significance. [0...

Claims

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Application Information

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IPC IPC(8): C22B34/22C22B7/00C22B1/02C22B1/00C22B7/04
CPCC22B34/225C22B7/001C22B1/02C22B1/005C22B7/04Y02P10/20
Inventor 王科徐东戴川龙武涛李飞
Owner 万循材料科技有限公司
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