Hydroconversion multi-metallic catalyst and method for making thereof

A multi-metal catalyst, catalyst technology, applied in catalyst activation/preparation, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc., can solve the problem of small reactor volume, affect reactor performance, reduce Utilization efficiency and other issues

Active Publication Date: 2012-04-11
CHEVROU USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catalyst shrinkage further reduces bed utilization efficiency as smaller reactor volumes are used
Finally, the pressure drop across the reactor due to the volume shrinkage of the catalyst can significantly affect the performance of the reactor

Method used

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  • Hydroconversion multi-metallic catalyst and method for making thereof
  • Hydroconversion multi-metallic catalyst and method for making thereof
  • Hydroconversion multi-metallic catalyst and method for making thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment 1 Ni-Mo-W-maleate catalyst precursor

[0084] According to the following preparation formula (NH 4 ){[Ni 2.6 (OH) 2.08 (C 4 h 2 o 4 2- ) 0.06 ](Mo 0.35 W 0.65 o 4 ) 2} catalyst precursor: 52.96 g of ammonium heptamolybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O was dissolved in 2.4L deionized water. The pH of the prepared solution is 2-3. 52.96g of ammonium heptamolybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O is dissolved in the above solution. The pH of the prepared solution is 5-6. Then, 73.98g of ammonium metatungstate powder was added to the above solution and stirred at room temperature until completely dissolved. To this solution was added 90 ml of concentrated (NH 4 ) OH. The resulting molybdate / tungstate solution was stirred for 10 minutes and the pH was monitored. The solution has a pH of 9-10. A second solution was prepared containing 174.65 g of Ni(NO 3 ) 2 ·6H 2 O and the solution was heated to 90 °C. Then, slowly add hot nickel solutio...

Embodiment 2

[0085] Example 2 Ni-Mo-W catalyst precursor

[0086] According to the following preparation formula (NH 4 ){[Ni 2.6 (OH) 2.08 ](Mo 0.35 W 0.65 o 4 ) 2} catalyst precursor: 52.96 g of ammonium heptamolybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O was dissolved in 2.4L deionized water. The pH of the prepared solution is 5-6. Then, 73.98g of ammonium metatungstate powder was added to the above solution and stirred at room temperature until completely dissolved. To the solution was added 90 ml concentrated (NH 4 ) OH. The resulting molybdate / tungstate solution was stirred for 10 minutes and the pH was monitored. The solution has a pH of 9-10. A second solution was prepared containing 174.65 g of Ni(NO 3 ) 2 ·6H 2 O and the solution was heated to 90 °C. Then, slowly add hot nickel solution to the molybdate / tungstate solution over 1 hour. The resulting mixture was heated to 91 °C and stirring was continued for 30 minutes. The pH of the solution is 5-6. A blue-green prec...

Embodiment 3

[0087] Example 3: The precipitate from Example 2 was dispersed in a solution of 10.54 g maleic acid dissolved in 1.8 L deionized water and heated to 70°C. The resulting slurry was stirred at 70°C for 30 minutes, filtered, and the collected precipitate was vacuum dried overnight at room temperature. The material was then further dried at 120°C for 12 hours. The as-prepared material has a typical XRD pattern, in There is a broad peak at , indicating an amorphous Ni-OH-containing material. The resulting material has a BET surface area of ​​101 m 2 / g, the average pore volume is about 0.12-0.14cc / g, and the average pore diameter is about 5nm.

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Abstract

A catalyst with low volumetric shrinkage and a process for making the stable catalyst with low volumetric shrinkage is disclosed. The catalyst is made by sulfiding a catalyst precursor containing at least a Group VIB metal compound; at least a promoter metal compound selected from Group VIII, Group HB, Group HA, Group IVA and combinations thereof, having an oxidation state of either +2 or +4; optionally at least a ligating agent; optionally at least a diluent. In one embodiment, the catalyst precursor is first shaped then heat treated at a temperature of 50 DEG C. to 200 DEG C. for 15 minutes to 12 hours, wherein the catalyst precursor has a low (less than 12%) volumetric shrinkage after exposure to at least 100 DEG C for at least 30 minutes, e.g., in sulfidation or in a hydrotreating reactor.; In one embodiment, the catalyst precursor has an essentially monomodal pore volume distribution with at least 90% of the pores being macropores, and a total pore volume of at least 0.08 g/cc. In one embodiment, the catalyst is suitable for hydrotreating heavy oil feeds having a boiling point in the range of 343 DEG C. (65O DEG F.) - to 454 DEG C. (850 DEG F.), an average molecular weight Mn ranging from 300 to 400, and an average molecular diameter ranging from 0.9 nm to 1.7 nm.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application Serial Nos. 12 / 432,730, 12 / 432,728, 12 / 432,727, 12 / 432,723, 12 / 432,721 and 12 / 432,719, all filed April 29, 2009. This application claims priority to and benefit from the aforementioned patents, the contents of which are incorporated herein by reference. technical field [0003] The present invention generally relates to hydroprocessing catalyst precursors, methods of preparing catalyst precursors, multimetallic catalysts prepared using the catalyst precursors, and hydroconversion processes using the multimetallic catalysts. Background of the invention [0004] The petroleum industry is increasingly turning to heavy crude oil, residuum, coal, and tar sands, or lower-grade hydrocarbons ("heavy oils"), as sources of feedstock. By treating the feedstock with hydrogen in the presence of a catalyst to effect conversion of at least a portion of the feed to lower molec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26B01J23/888B01J35/10B01J37/20C07F19/00
CPCC10G45/08B01J35/1052B01J23/8885C10G49/04B01J23/002C10G2300/202B01J37/031C10G2300/301B01J35/1014B01J35/1038B01J37/0018C07F15/045C10G2300/107B01J23/85B01J37/20B01J35/1019B01J2523/00B01J2523/68B01J2523/69B01J2523/847B01J31/26B01J35/10C07F19/00
Inventor A·E·库珀曼T·梅森D·戴克斯特拉S·乌昆D·方
Owner CHEVROU USA INC
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