Hydro-conversion catalyst for heavy oil and residual oil and its preparing process

A residue hydrogenation and catalyst technology, which is applied in the direction of naphtha catalytic reforming, etc., can solve the problem of inability to use heavy oil, residue hydrogenation conversion process, poor acid regulation effect on catalyst surface, stable denitrification and decarbonization activities problems such as poor performance, to achieve the effects of low cost, easy molding, and increased hydrogenation and carbon residue removal.

Inactive Publication Date: 2003-10-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN1098433A, CN1253854A, CN98121076.7 and other patents disclose residual oil hydrodenitrogenation/conversion catalysts. The additives for adjusting the acidity of the catalyst are added during the catalyst preparation process, and the acidity adjustment effect on the surface of the catalyst is relatively poor, especially the B acid. In terms of catalyst performance, it is poor in denitrification and carbon removal act

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] The specific optimal operating conditions for the preparation of the silicon-containing aluminum hydroxide used in the present invention are:

[0021] The concentration of sodium metaaluminate solution is 5gAl 2 O 3 / l~60gAl 2 O 3 / l. The silicon-containing compound is preferably sodium silicate (common name water glass). The silicon-containing compound in the sodium silicate solution is adjusted to be 5g / l to 40g / l, and the added amount of the silicon-containing compound accounts for 0% to 50% of the total added amount. The gel-forming temperature is controlled between 15°C and 35°C, preferably between 18°C ​​and 30°C, preferably between 18°C ​​and 25°C according to the desired pore properties of the silicon-containing aluminum hydroxide. The concentration of carbon dioxide is controlled at 10v% to 50v% (preferably 20v% to 40v%). When the pH value of the mucilage liquid is controlled to be 9-12, carbon dioxide is stopped. It may or may not be aged, and the aging t...

Example Embodiment

[0025] Example 1

[0026] (1) Preparation of silicon-containing aluminum hydroxide

[0027] The concentration will be 30gAl 2 O 3 The sodium metaaluminate solution of / l was placed in the gel forming tank, the temperature was controlled at 23°C, and the concentration of 20g SiO was added. 2 / l sodium silicate solution, stir evenly, add sodium silicate to SiO 2 The content in the silicon-containing aluminum hydroxide is 2.0% by weight, and carbon dioxide gas with a concentration of 30v% is passed in. When the pH value of the slurry is 11, the carbon dioxide gas is stopped. The slurry is aged for 0.5hr under stirring, and then carried out. Filter, add deionized water to the filter cake and re-beat and stir, and then add the remaining part of the sodium silicate solution in the calculated amount to make the silicon-containing compound as SiO. 2 The final content in silicon-containing aluminum hydroxide is 8.0m%, and then aging for 0.5 hours, the aging temperature is 25 ° C, f...

Example Embodiment

[0030] Example 2

[0031] (1) The preparation of silicon-containing aluminum hydroxide is the same as in Example 1 (1)

[0032] (2) Preparation of catalyst

[0033] Compared with Example 1 (2), 20.0 g of analytically pure boric acid was dissolved in dilute ammonia water with a concentration of 9.0% to prepare 200 ml of B-NH 3 solution, get solution C, correspondingly reduce the amount of water in mixed solution B by 200g, increase peptizing acid or TiCl 3 The amount of the solution, press the ammonia water to neutralize it, first add C to A by spraying, add the remaining part of the calculated amount of boric acid 20.0g in the form of a fine powder solid, mix well and then knead 0.5~1.0 After one hour, the mixed solution B was added and kneaded, and other material dosages and operating conditions were the same as those in Example 1 (2), that is, this example.

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Abstract

The present invention belongs to the field of heavy oil and residual oil hydrotransforming technology. The heavy oil and residual oil hydrotransforming catalyst has siliceous alumina carrier, relatively strong acidity and especially protonic acid amount higher than that in available residual oil hydrotransforming catalyst. The siliceous alumina carrier is prepared through one colloid forming process, during and after which silicon is added to make alumina possess more strong acid centers and ideal pore structure. The catalyst of the present invention is used in the hydrotransforming treatment of heavy oil, residual oil and other inferior oil material.

Description

technical field [0001] The invention relates to a heavy oil and residual oil hydroconversion catalyst and a preparation method thereof, and also relates to a silicon-containing aluminum hydroxide used in the preparation of the catalyst and a preparation method thereof. The invention belongs to the technical field of petroleum processing catalysts, in particular to the technical field of heavy and residual oil hydrogenation conversion catalysts and their preparation. Background technique [0002] In the hydrotreating process of heavy oil and residual oil, part of high-quality diesel oil, naphtha and high-quality VGO as hydrocracking and ethene decomposition materials can be obtained, and the unconverted part can be used as catalytic cracking raw materials. With the increasingly stringent environmental protection regulations, the quality requirements for refined oil are getting higher and higher, so the demand for environmentally friendly clean fuel...

Claims

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Application Information

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IPC IPC(8): C10G35/06
Inventor 袁胜华苏晓波张皓方维平付泽民段日
Owner CHINA PETROLEUM & CHEM CORP
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