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Method used for preparing iron-based hydrogenation catalyst from iron-containing waste residue raw material

A hydrogenation catalyst and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve environmental pollution and other problems, and achieve environmental pollution and improve The effect of factory economic benefits and easy implementation of technology

Active Publication Date: 2016-06-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing iron-containing waste mainly includes metallurgical slag, red mud and slag, etc., which are all wastes produced by industrial production, and discarding and stacking will cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Iron-containing waste slag is selected from steel slag, and its composition is TFe content 16.03%, MgO content 1.35%, MnO content 0.95%, TiO 2 Content 3.98%. The steel slag is crushed with a ball mill, and the crushed sample is sieved, and 200 g of a sample with a particle size greater than 150 mesh is taken, added to 0.8 L of 1.0 mol / L dilute sulfuric acid, stirred for 2 hours, and the obtained slurry is filtered to obtain the treated sub iron salt solution.

[0043] Preparation of sodium metaaluminate solution concentration is 15gAl 2 o 3 / L, the caustic ratio is 3.5, a total of 2L, the concentration of the prepared aluminum sulfate solution is 30gAl 2 o 3 / L, a total of 0.5L.

[0044] Gradually add the prepared ferrous sulfate solution into the sodium metaaluminate solution, stir and mix to obtain a suspension of ferrous hydroxide; feed oxygen-containing gas (oxygen content 70v%), and control the temperature of the suspension to 30°C , the oxygen-containing gas...

Embodiment 2

[0049] Other conditions are the same as in Example 1, except that oxygen-containing gas (80v%) is passed into during the preparation of alkaline suspension I, the time of passing through is 3h, citric acid is changed into malic acid, the treatment temperature is 60°C, and the treatment time is 5h. The gel forming temperature is 25° C., the gel forming pH value is 7.5, and the catalyst S-2 with a particle size of 0.4-0.6 mm is prepared.

Embodiment 3

[0051] Other conditions are the same as in Example 1, except that the caustic ratio of sodium metaaluminate solution is 5.0, adding 195m 2 / g, the pore volume is 0.93mL / g, the average pore diameter is 120g of macroporous alumina of 19nm, the addition of citric acid is 12g and the addition of tartaric acid is 12g, the Al in the acidic suspension II 2 o 3 Amount / Al in Alkaline Suspension I 2 o 3 The ratio is 3.8:1, and catalyst S-3 with a particle size of 0.4-0.6 mm is prepared.

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PUM

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Abstract

The invention discloses a method used for preparing an iron-based hydrogenation catalyst from an iron-containing waste residue raw material. The method comprises following steps: the iron-containing waste residue raw material is smashed and sieved so as to obtain an iron-containing waste residue with a particle size larger than 150 meshes; the iron-containing waste residue is treated with an acidic solution; an obtained solution is filtered so as to obtain a ferrous salt-containing solution; an alkaline suspension liquid I containing iron oxide hydroxide and an acidic suspension liquid II are prepared respectively; parallel flow precipitation, aging, drying, moulding, and drying are carried out so as to obtain the iron-based hydrogenation catalyst. According to the method, cheap iron oxide hydroxide is taken as an active metal ingredient, cost is low, and hydrogenation activity and stability are relatively high.

Description

technical field [0001] The invention relates to a method for preparing an iron-based hydrogenation catalyst by utilizing iron-containing waste slag raw materials, and the catalyst is especially suitable for the hydrogenation process of fluidized bed residue oil. Background technique [0002] With the increase of heavy and inferior crude oil and the change of market demand structure for light oil, the processing technology of inferior heavy oil (including various heavy oil and residual oil, etc.) has become the research focus of major oil companies and petroleum scientific research institutions direction. The active metal components commonly used in heavy oil hydrogenation catalysts are W, Mo, Ni, Co, etc., which are relatively expensive, and the use of cheap active metals to replace them to reduce the cost of catalysts is the focus of research. [0003] The existing iron-containing waste mainly includes metallurgical slag, red mud and furnace slag, which are all wastes prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745
Inventor 朱慧红孙素华刘杰金浩杨光蒋立敬
Owner CHINA PETROLEUM & CHEM CORP
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