Preparation method of hydrogenation catalyst of hydrocarbon

A hydrogenation treatment and catalyst technology, which is applied in hydrocarbon oil cracking, petroleum industry, refining to remove heteroatoms, etc., can solve the problems of long production cycle, increase production cost, and pollute the environment, and achieve environmental protection and reduce losses , the effect of simple operation

Active Publication Date: 2007-04-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Their preparation cycle is longer, and the washing liquid contains Cl - , NO 3 - , SO 4 2 - and Na + Plasma, if this type of washing liquid is discharged directly, it will pollute the environment; if it is disposed of, it will increase production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]First, 2000 mL of 1.0 mol / L solution of crystalline aluminum chloride and deionized water was placed in a 5000 Ml ultrasonic transducer, and 1.0 mol of ammonium oxalate pore expander was weighed and added to the aluminum chloride solution, under constant stirring Heat and keep the temperature at 60°C to dissolve ammonium oxalate, then add ammonia solution with a concentration of 2.0mol / L to the reactor dropwise until a precipitate is about to form. Turn on the ultrasonic transducer while evaporating the above solution, control the transmission power to 200W and the frequency to 25kHz, gradually precipitate a white solid, and turn off the ultrasonic transducer after the solution evaporates. The obtained solid was dried at 100° C. for 3 hours, and the product was crushed to 180 mesh. Take by weighing this aluminum hydroxide dry powder 50g, add ammonium molybdate solution 35g, wherein MoO 3 The concentration is 30.0wt%, the solution contains NH 3 It is 10wt%, fully mixed ...

Embodiment 2

[0024] Compared with Example 1, the ammonium oxalate pore expander that takes 1.5mol is added in the aluminum chloride solution, MoO 3 The concentration was changed to 46.0%, Ni(NO 3 ) 2 The concentration was changed to 24.8%, Co(NO 3 ) 2 The concentration of the catalyst is changed to 24.8%, and other implementation conditions are unchanged, both in this example catalyst B, its properties are shown in Table 1.

Embodiment 3

[0026] Compared with Example 1, the crystallized aluminum chloride and deionized water were formulated into a 2.0 mol / L solution, and other implementation conditions remained unchanged, that is, Catalyst C in this example, and its properties are shown in Table 1.

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Abstract

The invention relates to the preparing method of an alkanes hydrogenating catalyst. The carrier of the catalyst is gamma-Al2O3 and the active ingredient is VIB group and VIII group metals. The invention adopts the complete mix-and-pinch method to prepare the catalyst. It uses the method of alkalinizing- evaporating-sedimentating of aluminum hydroxid solution to prepare the dry aluminium hydroxide gel. During the sedimentating process, the material is treated by ultrasonic of certain energy. The prepared aluminium hydroxide has larger bore volume, larger specific surface area and more concentrated bore distribution; besides, it has omitted the aging, filtering and washing procedures in the regular method, so it has shortened the preparing cycle and it does no harm to the environment at all. Ammonium oxalate serves as reaming agent in the invention and it can enlarge the bore very well. The catalyst can be used in the hydrogenating process of different kinds of distillate, especially the hydrogenation process of the heavy magnesium carbonate distillate.

Description

technical field [0001] The invention relates to a preparation method of a hydrocarbon hydrogenation treatment catalyst. Background technique [0002] Hydrotreating is an important process technology in hydrocarbon processing, mainly including hydrodesulfurization, hydrodenitrogenation, hydrocracking, etc. The key to hydrotreating technology lies in the catalyst. At present, most catalysts for hydrocarbon hydrotreating are γ-Al 2 o 3 As a carrier, Mo and / or W and Ni and / or Co are active components. γ-Al 2 o 3 Because of its large specific surface area and good thermal stability, it is widely used as catalyst carrier, desiccant, adsorbent, etc. in oil refining, petrochemical and fertilizer industries. Preparation of γ-Al 2 o 3 The usual method is to prepare pseudo-boehmite and then convert it to γ-Al by calcination at a certain temperature. 2 o 3 . Pseudo-boehmite generally has three preparation methods in industry: (1) neutralization reaction of aluminum salt and alk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/04C10G47/02
Inventor 蒋绍洋付秋红隋宝宽赵愉生吴国林陈金汤
Owner CHINA PETROLEUM & CHEM CORP
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