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

Hydrofining catalyst and its preparation method and application

A hydrorefining and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of low activity of hydrorefining catalysts, achieve good industrial application prospects, high desulfurization and desulfurization Effects of nitrogen activity, high catalytic activity and activity stability

Active Publication Date: 2020-06-16
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem of low activity of hydrofinishing catalysts in the prior art, the present invention provides a new preparation method of hydrofinishing catalyst and the hydrofining catalyst prepared by the method, and the hydrofinishing catalyst prepared by the method Significantly higher catalytic activity and activity stability

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
  • Hydrofining catalyst and its preparation method and application
  • Hydrofining catalyst and its preparation method and application
  • Hydrofining catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] According to the preparation method of the hydrotreating catalyst provided by the present invention, the preparation method comprises the following steps:

[0022] (1) The water-soluble salt of the hydrogenation metal active component and the organic complexing agent are loaded on the carrier by the impregnation method, then dried and roasted to obtain a semi-finished catalyst, and the roasting conditions are such that the total amount of the semi-finished catalyst is used as a benchmark , the carbon content in the semi-finished catalyst is 0.03-0.5% by weight;

[0023] (2) using the solution containing the organic complexing agent as the impregnating liquid, the semi-finished catalyst obtained in step (1) is impregnated, then dried without roasting;

[0024] (3) loading magnesium and phosphorus as additives on the carrier;

[0025] Wherein, step (3) is performed before, during and after step (1) and before step (2).

[0026] According to the present invention, prefer...

Embodiment approach

[0067] According to a preferred embodiment of the present invention, the inorganic heat-resistant oxide is alumina, more preferably alumina obtained after firing a hydrated alumina (aluminum hydroxide) colloidal composite.

[0068] The invention also provides a hydrorefining catalyst prepared by the preparation method of the invention.

[0069] Compared with catalysts prepared by conventional methods, the hydrorefining catalyst prepared by the method provided by the invention has higher catalytic activity.

[0070] A preferred method for preparing alumina is obtained by mixing and calcining alumina and / or alumina precursors. The carrier can be made into various easy-to-handle moldings according to different requirements, such as microspheres, spheres, tablets or strips, and the like. Forming can be carried out by conventional methods, for example, it can be prepared by extruding and roasting the alumina and / or its precursor. Wherein, the precursor of alumina may be selected ...

preparation example 1

[0078] Weigh 250 grams of magnesium nitrate, add deionized water and stir to dissolve, add deionized water to 850 ml, saturated impregnate 1000 grams of alumina carrier for 2 hours, then dry at 120 ° C for 2 hours, and roast at 400 ° C for 4 hours to obtain a water absorption rate of 0.85ml / g of magnesium-containing alumina carrier Z1.

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention relates to a hydrorefining catalyst and a preparation method thereof. The preparation method comprises: (1) loading the water-soluble salt of a hydrogenation metal active component and an organic complexing agent onto a carrier by using an impregnating method, drying, and calcining to obtain a semi-finished product catalyst, wherein the charcoal content in the semi-finished product catalyst is 0.03-0.5 wt% based on the total amount of the semi-finished product catalyst under the calcining condition; (2) impregnating the semi-finished product catalyst obtained in the step (1) by using a solution containing an organic complexing agent as an impregnating liquid, and drying without calcining; and (3) loading elements magnesium and phosphorus as auxiliary agents on the carrier, wherein the step (3) is performed before the step (1) and / or during the step (1) and / or after the step (1) and before the step (2). According to the present invention, the catalyst is particularly suitable for the hydrorefining of light distillate oil and middle distillate oil so as to achieve the purposes of hydrodesulfurization and hydrodenitrogenation.

Description

technical field [0001] The invention relates to a preparation method of a hydrorefining catalyst, a hydrorefining catalyst prepared by the method and an application thereof. Background technique [0002] The increasing awareness of environmental protection and stricter environmental regulations force the refining industry to pay more attention to the development of clean fuel production technology. In the future, vehicle fuels in the market will tend to be "ultra-low sulfur", and fuels that cannot meet emission standards will not be able to enter the market. Hydrogenation technology, as an effective means of desulfurization, is playing an increasingly important role in the production of clean vehicle fuels. Among them, high-efficiency hydrogenation catalysts are the core technology of hydrogenation technology. Therefore, the development of catalysts with higher activity and Selective new hydrotreating catalysts have become one of the most urgent needs of the oil refining in...

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): B01J27/19C10G45/08
CPCB01J27/19C10G45/08C10G2300/202C10G2300/70
Inventor 张乐褚阳夏国富刘锋习远兵李会峰
Owner CHINA PETROLEUM & CHEM CORP