Catalyst precursor for hydrocracking reaction and method for hydrocracking heavy oil by using same

Patent metadata

Field	Value
Publication number	US-11492561-B2
Application number	US-201916979350-A
Country	US
Kind code	B2
Filing date	Jun 27, 2019
Priority date	Jul 17, 2018
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

Abstract

The present invention relates to a catalyst precursor for forming a molybdenum disulfide catalyst through a reaction with sulfur in heavy oil and to a method for hydrocracking heavy oil by using same. According to the present invention, the yield of a low-boiling liquid product with a high economic value in the products by heavy oil cracking can be increased, and the yield of a relatively uneconomical gas product or coke (toluene insoluble component), which is a byproduct, can be significantly lowered.

First claim

The invention claimed is:

1. A catalyst precursor for a hydrocracking reaction represented by the following Chemical Formula 1, which reacts with sulfur in a heavy oil to produce a molybdenum disulfide catalyst:

wherein
R 1 to R 3 are independently of one another hydrogen, hydroxy, halogen, C 1 -C 30 alkyl, C 3 -C 30 cycloalkyl, C 6 -C 30 aryl, C 1 -C 30 alkoxy, C 3 -C 30 cycloalkyloxy, or C 6 -C 30 aryloxy, and optionally the alkyl, alkoxy, cycloalkyl, aryl, cycloalkyloxy, or aryloxy of R 1 to R 3 is independently of one another further substituted by one or more substituents selected from halogen, hydroxy, cyano, C 1 -C 30 alkyl, C 3 -C 30 cycloalkyl, and C 6 -C 30 aryl.

2. The catalyst precursor for a hydrocracking reaction of claim 1 , wherein R 1 to R 3 of Chemical Formula 1 are independently of one another hydroxy, C 1 -C 10 alkoxy, C 3 -C 12 cycloalkyloxy, or C 6 -C 12 aryloxy.

3. The catalyst precursor for a hydrocracking reaction of claim 1 , wherein R 1 to R 3 of Chemical Formula 1 are independently of one another C 1 -C 10 alkyl, C 3 -C 12 cycloalkyl, C 3 -C 12 cycloalkyl C 1 -C 10 alkyl, or C 1 -C 10 alkyl C 3 -C 12 cycloalkyl.

4. The catalyst precursor for a hydrocracking reaction of claim 1 , wherein R 1 to R 3 of Chemical Formula 1 are independently of one another C 6 -C 12 aryl, C 6 -C 12 aryl C 1 -C 10 alkyl, or C 1 -C 10 alkyl C 6 -C 12 aryl.

5. A hydrocracking method of a heavy oil, the method comprising:
mixing a sulfur-containing heavy oil and a catalyst precursor of the following Chemical Formula 1 to produce a molybdenum disulfide catalyst, and performing a hydrocracking reaction of the heavy oil by using the molybdenum disulfide catalyst:

wherein
R 1 to R 3 are independently of one another hydrogen, hydroxy, halogen, C 1 -C 30 alkyl, C 3 -C 30 cycloalkyl, C 6 -C 30 aryl, C 1 -C 30 alkoxy, C 3 -C 30 cycloalkyloxy, or C 6 -C 30 aryloxy, and optionally the alkyl, alkoxy, cycloalkyl, aryl, cycloalkyloxy, or aryloxy of R 1 to R 3 is independently of one another further substituted by one or more substituents selected from halogen, hydroxy, cyano, C 1 -C 30 alkyl, C 3 -C 30 cycloalkyl, and C 6 -C 30 aryl.

6. The hydrocracking method of a heavy oil of claim 5 , wherein the molybdenum disulfide catalyst is a molybdenum disulfide catalyst doped with phosphorus (P) containing 0.001 to 0.1 atom % of a phosphorus atom, based on a total number of atoms in the molybdenum disulfide catalyst.

7. The hydrocracking method of a heavy oil of claim 5 , wherein the catalyst precursor is added at 0.01 to 5 wt %, based on a total weight of a reactant.

8. The hydrocracking method of a heavy oil of claim 5 , wherein the hydrocracking reaction is performed at a temperature of 300 to 500° C. under a 10 to 200 atm condition.

9. The hydrocracking method of a heavy oil of claim 5 , wherein the molybdenum disulfide catalyst is doped with phosphorus (P).

10. The hydrocracking method of a heavy oil of claim 9 , wherein the molybdenum disulfide catalyst doped with phosphorus contains 0.001 to 1.0 mol of phosphorus (P) with respect to 1 mol of a molybdenum atom.

11. The hydrocracking method of a heavy oil of claim 5 , wherein the heavy oil is a hydrocarbon having a hydrogen atom/carbon atom ratio (H/C) of 1 or less and containing 0.1 wt % or more of a sulfur atom, based on a total weight.

Assignees

• Korea Res Inst Chemical Tech
• Industry Academic Cooperation Foundation Of Sunchon National Univ

Inventors

• Park Sunyoung
• Lee Chul Wee
• Kim Gyoo Tae
• Seo Hwi Min
• Chung Minehul
• Son Seok Hwan
• Choi Byong Min

Classifications

• C10G2300/1048

  Middle distillates · CPC title

• C10G47/06 Primary

  Sulfides · CPC title

• B01J31/185

  Phosphites ((RO)3P) , their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof · CPC title

• C10G2300/4006

  Temperature · CPC title

• B01J31/2404

  Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring · CPC title