Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydrotreating catalyst and application thereof

A hydrogenation treatment and catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problems of further improvement in catalytic activity and achieve performance improvement Effect

Active Publication Date: 2013-03-27
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method provided by the invention improves the catalytic activity of the catalyst to a certain extent, but the catalytic activity of this type of catalyst needs to be further improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrotreating catalyst and application thereof
  • Hydrotreating catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The preparation method of pseudo-boehmite P1 with 1.1≤n≤2.5 includes: contacting an aluminum-containing compound solution with acid or alkali for precipitation reaction, or contacting an organic aluminum-containing compound with water for hydrolysis reaction to obtain hydrated alumina Aging the alumina hydrate obtained above, wherein, the contact of the aluminum-containing compound solution with acid or alkali or the contact of the organic aluminum-containing compound with water and the aging of the alumina hydrate are carried out in the crystal grains The process is carried out in the presence of a growth regulator, which is a substance capable of regulating the growth rate of crystal grains on different crystal planes.

[0016] Although the object of the present invention can be achieved as long as any one of the hydrolysis reaction or the precipitation reaction and the aging process is carried out in the presence of a grain growth regulator, preferably, the hydrolysis...

Embodiment 1

[0078] Weigh 650 grams of pseudo-boehmite P1-1 and 350 grams of pseudo-boehmite P2-3, mix them, extrude them into clover-shaped strips with a circumcircle diameter of 1.6 mm, and dry them at 120° C. for 6 hours. Take 300 grams of it and roast it for 2.0 hours at 850°C under the condition of air ventilation to obtain the carrier S 1 , where the air flow rate is 2.0 standard cubic meters / kg.hour.

[0079] Weigh 100 g of carrier S 1 , impregnated with 88 ml of an aqueous solution containing 6.0 g of ammonium paramolybdate for 1 hour, and dried at 150° C. for 5 hours. Continue to impregnate 85 ml of an aqueous solution containing 32.0 grams of nickel nitrate and 59.2 grams of ammonium metatungstate for 2 hours, dry at 120°C for 5 hours, and treat at 180°C for 4 hours to obtain catalyst C 1 . Catalyst C 1 Medium MoO 3 , NiO and WO 3 The weight contents are respectively 2.7%, 4.6% and 27.4%.

Embodiment 2

[0081] Weigh 700 grams of pseudo-boehmite P1-2 and 300 grams of pseudo-boehmite P2-3, mix them, extrude them into clover-shaped strips with a circumcircle diameter of 1.6 mm, and dry them at 120° C. for 8 hours. Take 300 grams of it and roast it for 4 hours at 800°C under the condition of ventilation to obtain the carrier S 2 , where the air flow rate is 1.5 standard cubic meters / kg.hour.

[0082] Weigh S 2 100 grams of carrier, impregnated with 88 ml of aqueous solution containing 4.0 grams of ammonium paramolybdate, 22.5 grams of nickel nitrate, 57.3 grams of ammonium metatungstate, and 9.4 grams of phosphoric acid for 2 hours, dried at 120°C for 5 hours, and calcined at 450°C for 4 hours. Then impregnated with 56 milliliters of aqueous solution containing 6.9 grams of glycerol for 1 hour, and dried at 130° C. for 6 hours to obtain catalyst C 2 . Catalyst C 2 Medium MoO 3 , NiO, WO 3 and P 2 o 5 And the weight content of organic additives are respectively 1.9%, 3.4%,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a hydrotreating catalyst and an application thereof. The catalyst comprises an aluminum oxide carrier, at least a metal component selected from VIII group metals, and at least a metal component selected from VIB group metals. The catalyst is characterized in that: the carrier is prepared through baking a pseudo-boehmite composition comprising P1 and P2; with adopting the total weight of the pseudo-boehmite composition as the reference, the weight ratio of the P1 to the P2 is 60:40-95:5, wherein the P1 is the pseudo-boehmite having an index n1 more than or equal to 1.1and less than or equal to 2.5, the P2 is the pseudo-boehmite having an index n2 more than 0.8 and less than 1.1; the n(1 or 2) is calculated from the following formula, n(1 or 2)=D(1 or 2)(031) / D(1 or 2)(120), the D(1 or 2)(031) represents a grain size of a crystal face represented by a (031) peak in a XRD spectrogram of the P1 pseudo-boehmite grains or the P2 pseudo-boehmite grains, the D(1 or 2)(120) represents a grain size of a crystal face represented by a (120) peak in the XRD spectrogram of the P1 pseudo-boehmite grains or the P2 pseudo-boehmite grains, the D is calculated from the following formula, D=K*lambda / (B*cos theta), the lambda is the diffraction wavelength of the target type material, the B is the half peak width of the corrected diffraction peak, the 2theta is the position of the diffraction peak. Compared to the hydrogenation catalyst in the prior art, the catalytic property of the catalyst provided by the present invention is improved.

Description

technical field [0001] The invention relates to a hydrotreating catalyst and its application. Background technique [0002] Nitrogen oxides (NOx) in vehicle exhaust X ) not only form acid rain in cities and surrounding areas, but also severely damage the earth’s ozone layer; the particulate matter (PM) in the exhaust gas contains a variety of substances that are listed as possible carcinogens by international research institutions; sulfur compounds in diesel oil are harmful to automobiles. The impact of pollutant emissions is also great, especially for NO X and the production of PM have a significant promotion effect, and the sulfur oxides (SO X ) is not only the main cause of acid rain but also the poisoning of motor vehicle exhaust purification catalysts. Aromatics in diesel also have many adverse effects on its properties. Aromatics will make carbon monoxide and NO in automobile exhaust X The emission of pollutants such as PM and PM will increase, and aromatics will a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/888
Inventor 王锦业曾双亲聂红夏国富李明丰杨清河王奎李大东张润强朱玫李坚朱立
Owner CHINA PETROLEUM & CHEM CORP