Unlock instant, AI-driven research and patent intelligence for your innovation.
Hydroprocessing catalyst and its prepn process
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A hydrotreating and catalyst technology, which is applied in the refining of hydrocarbon oil, petroleum industry, etc., can solve the problems of small number of medium and small pores, unsuitable for hydrodesulfurization reaction of low molecular weight distillate oil, etc., and achieve the effect of improving the reaction activity.
Inactive Publication Date: 2006-06-14
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
None of the above three patents mentions the pore size distribution of the catalyst. Those of ordinary skill in the art believe that it should be the pore size distribution of ordinary refined catalysts, and the pore size distribution of ordinary refined catalysts is mostly dispersed in the range of 4 to 10 nm. The number of small and medium pores Less, not suitable for hydrodemercaptanization of low molecular weight distillates
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
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0029] According to the preparation method of catalyst provided by the invention, its concrete steps are respectively as follows:
[0030] (1) Preparation of catalyst carrier
[0031] a. Mix macroporous alumina and small pore alumina as raw materials.
[0032] b. Add a binder (preferably alumina, based on the weight of the carrier after roasting, the solid content of alumina is 5% to 30%, and the molar ratio of peptizer to alumina is 0.10 to 0.35) into the mixed raw materials , and adding an extrusion aid (preferably citric acid, safflower powder, based on the weight of the carrier after roasting, the content of the extrusion aid is 0.5% to 10%), kneading, rolling, and extruding.
[0033] c. Air-dry the extruded strip at room temperature, dry at 100-150° C. for 1-24 hours, and then crush to obtain a dried strip with a length of 3-8 mm.
[0034] d. Calcining the above dried strips in a muffle furnace at 450-700° C. for 0.5-24 hours to obtain a catalyst carrier.
[0035] (2) ...
Embodiment 1
[0058] Example 1 is the preparation of the carrier provided by the present invention.
[0059] Take 128.5g of industrial macroporous alumina, 150g of industrial microporous alumina, PURALSB-Al produced in Germany 2 o 3 41.7g, 5g of citric acid, and 8g of industrial scallop powder were mixed for 45 minutes, and 240g of binder (PURAL SB-Al produced in Germany) were added. 2 o 3 Prepared by beating with nitric acid with a volume concentration of 65%, the solid content of the binder is 25wt%, nitric acid / SB-Al 2 o 3 The molar ratio is 0.25) and kneaded for 30 minutes, then rolled for 5 minutes, extruded to obtain clover strips with a diameter of 1.5mm, dried at 110°C for 2 hours, and calcined at 550°C for 24 hours. Vector Z-A was obtained.
Embodiment 2
[0062] Take 0.8g barium nitrate Ba(NO 3 ) 2 Add distilled water to dissolve, dilute to 250ml with a volumetric flask, and make a barium-containing aqueous solution. Take 100g of the carrier Z-A obtained by the above preparation method, and use 70ml of the barium-containing aqueous solution prepared by the above method to saturate and impregnate for 6 hours, dry overnight after impregnation, and dry at 110°C for 24 hours, then roast at 550°C 3 hours. The carrier Z-B containing alkali metal barium was obtained.
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
Property
Measurement
Unit
specific surface area
aaaaa
aaaaa
specific surface area
aaaaa
aaaaa
specific surface area
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a hydrogenation catalyst and a preparation method thereof. The catalyst contains a basic additive, and the active components include molybdenum and / or tungsten and nickel, and the number of nickel atoms is equal to the total atoms of nickel, molybdenum and / or tungsten The number ratio is 0.3-0.9, and the pore volume fraction at 2-6nm accounts for 70%-90% of the total pore volume. The catalyst is prepared by mixing several kinds of alumina with different pore structures. First, the alumina carrier is impregnated with an aqueous solution containing alkaline additives, and then impregnated with an aqueous solution containing molybdenum and / or tungsten compounds and nickel compounds. Catalyst for basic additives. Compared with the prior art, the total atomic ratio of nickel / (nickel+molybdenum and / or tungsten) in the active component of the hydrocracking post-treatment catalyst of the present invention is higher, and the number of medium and small holes in the catalyst is large and distributed Concentration, high hydrodemercaptan and olefin saturation activity, especially suitable for hydrocracking post-treatment sweetening sulfur process.
Description
technical field [0001] The invention relates to a hydroprocessing catalyst and a preparation method thereof, in particular to a hydrocracking post-treatment catalyst and a preparation method thereof. Background technique [0002] Hydrocracking is a petroleum refining process that breaks high-boiling hydrocarbons through C-C bonds to form small molecules and low-boiling target products. Since heavy oil and other hydrocracking raw materials usually contain impurities such as sulfur, oxygen, and nitrogen, the raw materials usually need to undergo hydrocracking pre-refining process (HDS, HDN, HDO) to remove impurities before hydrocracking. In the process of hydrocracking reaction, high-boiling hydrocarbons can form small molecular hydrocarbons through the breakage of C-C bonds, and the target products with higher H / C ratio can be obtained through hydrogenation. The organic sulfides in the raw materials are hydrogenated and refined to generate H 2 S enters the gas phase and rea...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More