Heavy oil hydrogenating treatment catalyst and preparation method thereof

A heavy oil hydrogenation and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of poor catalyst stability and high carrier acid content

Active Publication Date: 2008-12-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a new

Method used

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  • Heavy oil hydrogenating treatment catalyst and preparation method thereof
  • Heavy oil hydrogenating treatment catalyst and preparation method thereof
  • Heavy oil hydrogenating treatment catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0031] Take by weighing 300 grams of dry rubber powder produced by Changling Catalyst Factory, mix evenly with 10 gram of turnip powder and 30 gram of borax, then at room temperature this mixture is mixed with 4% ammonia solution 360 milliliters, in twin-screw extruder After continuing kneading on the strip machine to form a plastic body, extrude into a trefoil-shaped strip with a diameter of 1.5 mm. The wet strip was dried at 120°C for 4 hours and then calcined at 900°C for 4 hours to obtain the carrier Z1. The acid content, alumina content, boron content, specific surface area, probable pore diameter, and pore volume of Z1 were measured, and the results are shown in Table 1.

[0032] The boron content is determined by the ICP method, and the specific surface area, programmable pore size and pore volume are determined by the BET low-temperature nitrogen adsorption method (the same below).

example 2

[0038] Take by weighing 300 grams of dry rubber powder (same as example 1), mix evenly with 10 grams of scallop powder and 12 grams of boron oxide, then add 350 milliliters of aqueous solution containing 18 grams of sodium borate at 35 ° C, and continue kneading on a twin-screw extruder. After being plasticized, it was extruded into butterfly-shaped strips with a diameter of 1.1 mm, and the wet strips were dried at 120° C. for 2 hours and then calcined at 950° C. for 3 hours to obtain carrier Z2. The acid content, alumina content, boron content, specific surface area, probable pore diameter and pore volume of Z2 were measured, and the results are shown in Table 1.

example 3

[0040] Take by weighing 300 grams of aluminum hydroxide powder produced by Shanxi Aluminum Works, 10 grams of fenugreek powder, 20 grams of borax, and 20 grams of potassium borate and mix evenly, then add 380 milliliters of aqueous solution containing 40 grams of ammonium bicarbonate at room temperature, and extrude After continuing kneading on the strip machine to form a plastic body, extrude into butterfly-shaped strips with a diameter of 1.5 mm. The wet strips were dried at 120°C for 3 hours and then kept at 800°C for 4 hours to obtain carrier Z3. The acid content, alumina content, boron content, specific surface area, probable pore diameter and pore volume of Z3 were measured, and the results are shown in Table 1.

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Abstract

The invention discloses a heavy oil hydrotreating catalyst and a preparation method thereof; the catalyst contains a carrier and a component containing an effective amount of at least a metal component selected from VIII family and at least a metal component selected from VIB family, wherein, the carrier is a compound alumina supporter with boron, the content of boron in the carrier f is 0.3 - 5% by weight and the acid content of the carrier is 0.2 - 0.5 mmol/g based on elements and the total amount of the carrier, wherein, the amount of weak acid which is lower than 250 DEG C accounts for 50 - 100% of that of the total acid, while the amount of strong acid which is higher than 450 DEG C accounts for 0-5% of that of the total acid. Compared with the catalysts provided by the prior art, the catalyst provided by the invention improves the carbon deposit resistance obviously while keeping high hydrotreating activity.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst and a preparation method thereof, more specifically to a heavy oil hydrogenation treatment catalyst and a preparation method thereof. Background technique [0002] Deep processing of heavy oil will help improve the utilization rate of crude oil and reduce environmental pollution. Compared with distillate oil, heavy oil contains more asphaltenes and colloids, so these polycyclic aromatic hydrocarbons are easily adsorbed on the surface of the catalyst during hydroprocessing, and polycarbon condensation occurs under high temperature to form carbon deposits. lead to catalyst poisoning and deactivation. Studies have shown that the main cause of condensation and coking of aromatics is the acid sites on the surface of the catalyst, and these acid sites are almost all derived from the alumina support. Therefore, reducing the surface acidity of the alumina support and reducing the carbon area on the ...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J23/888B01J23/882C10G49/04
Inventor 胡大为杨清河刘滨牛传峰刘涛戴立顺
Owner CHINA PETROLEUM & CHEM CORP
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