Prepn process of vulcanized hydrogenation catalyst

A hydrogenation catalyst and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as not being combined, so as to avoid inhomogeneity of product properties and uneven mixing of materials average effect

Active Publication Date: 2007-12-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above catalyst preparation process only adds some additives to the active metal impregnation solution to improve the performance of the catalyst to a certain extent, but it does not directly combine the catalyst preparation process with the presulfurization process

Method used

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  • Prepn process of vulcanized hydrogenation catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Hydrogenation catalyst A: With γ-alumina as the carrier, the active metal composition is as follows: Mo content is expressed as MoO 3 The weight percentage is 23.7%, the Co content is 4.5% by weight in CoO, and the P content is in P 2 o 5 The weight percentage is 3.1%. (excluding the composition of vulcanizing agent)

[0027] Contain the preparation process of the above-mentioned composition catalyst of vulcanizing agent:

[0028] Take 1000 grams of gamma-alumina carrier, the specific surface area of ​​the carrier is 296m 2 / g, pore volume 0.87ml / g, use 129 grams of molybdenum trioxide, 56 grams of cobalt carbonate, 30.6 grams of 85% phosphoric acid and appropriate amount of water to prepare 900ml aqueous solution, impregnate the above carrier, and dry the impregnated sample at 340°C for 4 hours , to prepare the catalyst intermediate, the Mo content is expressed as MoO 3 The weight percentage is 10%, the Co content is 2% by weight of CoO, and the P content is P 2 o ...

Embodiment 2

[0030] Hydrogenation catalyst A: With γ-alumina as the carrier, the active metal composition is as follows: Mo content is expressed as MoO 3 The weight percentage is 25.8%, the Co content is 4.9% by weight in CoO, and the P content is in P 2 o 5 The weight percentage is 3.5%. (excluding the composition of vulcanizing agent)

[0031] Contain the preparation process of the above-mentioned composition catalyst of vulcanizing agent:

[0032] Take 1000 grams of gamma-alumina carrier, the specific surface area of ​​the carrier is 296m 2 / g, pore volume 0.87ml / g, use 129 grams of molybdenum trioxide, 56 grams of cobalt carbonate, 30.6 grams of 85% phosphoric acid and appropriate amount of water to prepare 1300ml aqueous solution, impregnate the above carrier, and dry the impregnated sample at 340°C for 4 hours , to prepare the catalyst intermediate, the Mo content is expressed as MoO 3 The weight percentage is 8.9%, the Co content is 1.7% by weight in CoO, and the P content is P...

Embodiment 3

[0034] According to the method for embodiment 1, reducing the active metal content in the catalyst intermediate is 15% (weight) of the final catalyst active metal content, and the elemental sulfur consumption is 80% of theoretical requirement, and heat treatment temperature is 150 ℃, and heat treatment time is 20 Hours, the heat treatment equipment adopts the biconical rotary heat processor described in Figure 1, and the speed is 3 rpm. Other according to the method of embodiment 1, obtain catalyst C.

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Abstract

The present invention relates to one kind of vulcanized hydrocarbon oil hydrogenating catalyst and its preparation process. The preparation process includes the first supporting certain amount of VI and VIII metal precursor oxide, the subsequent introducing sulfur and heat treatment in dynamic heating equipment, and final adding the residual VI and VIII metal precursor oxide and drying treatment. The present invention combines the pre-vulcanizing into the preparation process of catalyst, and the catalyst has raised reaction performance, and is suitable for hydrocarbon oil hydroprocessing, especially light fraction oil desulfurizing reaction, hydrodenitrogenation reaction, arene hydrogenating saturation and other catalytic reaction process.

Description

technical field [0001] The invention relates to a preparation method of a highly active hydrocarbon oil hydrotreating catalyst to meet the needs of clean light distillate oil production. Background technique [0002] Hydrogenation catalysts are used to treat hydrocarbon oils in the presence of hydrogen for hydrodesulfurization, hydrodenitrogenation, hydrogenation saturation, and hydrocracking reactions. Hydrogenation catalysts use inorganic oxides with strong adsorption capacity such as alumina, Titanium oxide, silicon oxide, and aluminum oxide and silicon oxide composites are used as carriers, and the group VI of the periodic table includes metals such as Mo and / or W, metals such as Mo and / or W, and metals such as group VIII Co and / or Ni. These metals are formed as oxides. form exists. Oxide form catalysts have low activity, and are usually transformed into corresponding metal sulfides to have higher activity. Therefore, pre-sulfurization treatment must be carried out afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/20B01J27/049C10G45/38
Inventor (要求不公开所有发明人姓名)
Owner CHINA PETROLEUM & CHEM CORP
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