# US 4,377,494 A · Cracking catalysts passivated by barium

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- Number: US 4,377,494 A
- Document ID: US4377494A
- Status: Granted
- Kind: A
- Application number: 06/112,265
- Filed: 1980-01-15
- Granted: 1983-03-22
- Earliest claimed: 1980-01-15
- Assignees: Phillips Petroleum Company
- Inventors: Brent J. Bertus; Dwight L. McKay
- Web page: https://patentgrep.com/patent/US4377494A

## CPC

- C10G 11/05: Crystalline alumino-silicates, e.g. molecular sieves
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES

## Abstract

A cracking catalyst is contacted with barium or a compound thereof to mitigate the adverse effects of catalyst contaminants.

## Claims

### Claim 1

A process to passivate the metals on a cracking catalyst comprising contacting a zeolite-modified silica-alumina fluid catalytic cracking catalyst having deposited thereon a detrimental amount of at least one detrimental metal selected from the group consisting of nickel, vanadium and iron with a treating agent selected from barium and barium compounds so as to impart to said cracking catalyst a barium concentration of from about 0.01 to about 8 weight percent and mitigate the worsened cracking characteristics of the catalyst caused by the at least one detrimental metal.

### Claim 2 (depends on 1)

A process as in claim 1 wherein said cracking catalyst is impregnated with said treating agent.

### Claim 3 (depends on 1)

A process as in claim 1 wherein said cracking catalyst is mixed with said treating agent.

### Claim 4 (depends on 1)

A process as in claim 1 wherein said cracking catalyst is sprayed with said treating agent.

### Claim 5 (depends on 1)

A process as in claim 1 wherein said treating agent is a barium compound selected from the group consisting of organic barium compounds and inorganic barium compounds.

### Claim 6 (depends on 5)

A process as in claim 5 wherein said inorganic barium compound is selected from the group consisting of a barium salt of a mineral acid and a basic barium compound.

### Claim 7 (depends on 6)

A process as in claim 6 wherein said barium salt is selected from the group consisting of barium sulfate, barium nitrate, barium halide and barium oxyhalide.

### Claim 8 (depends on 6)

A process as in claim 6 wherein said basic barium compound is selected from the group consisting of barium oxide, barium hydroxide, barium hydrosulfide and barium carbonate.

### Claim 9 (depends on 5)

A process as in claim 5 wherein said organic barium compound is selected from the group consisting of a barium salt of a carboxylic acid and a barium complex.

### Claim 10 (depends on 9)

A process as in claim 9 wherein said carboxylic acid is selected from the group consisting of acetic acid, butyric acid, citric acid, formic acid and stearic acid.

### Claim 11 (depends on 9)

A process as in claim 9 wherein said barium complex is comprised of a chelating agent selected from the group consisting of a 1,3-diketone, ethylenediamine tetraacetic acid, and nitrilotriacetic acid.

### Claim 12 (depends on 5)

A process as in claim 5 wherein said treating agent comprises barium acetylacetonate.

### Claim 13 (depends on 1)

A process as in claim 1 wherein the amount of treating agent contacted with said cracking catalyst is an amount sufficient to impart to said cracking catalyst a barium concentration of from about 0.02 to about 2 weight percent.

### Claim 14 (depends on 1)

A process as in claim 1 wherein the amount of treating agent contacted with said cracking catalyst is an amount sufficient to impart to said cracking catalyst a weight ratio of barium to the combined weight of vanadium and four times the weight of nickel of from about 2:100 to about 200:100.

### Claim 15 (depends on 14)

A process as in claim 14 wherein the amount of treating agent contacted with said cracking catalyst is an amount sufficient to impart to said cracking catalyst a weight ratio of barium to the combined weight of vanadium and four times the weight of nickel of from about 5:100 to about 100:100.

### Claim 16 (depends on 15)

A process as in claim 15 wherein the amount of treating agent contacted with said cracking catalyst is an amount sufficient to impart to said cracking catalyst a weight ratio of barium to the combined weight of vanadium and four times the weight of nickel of from about 10:100 to about 80:100.