# US 4,400,291 A · Ethylene gas generating composition

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- Number: US 4,400,291 A
- Document ID: US4400291A
- Status: Granted
- Kind: A
- Application number: 06/229,754
- Filed: 1981-01-29
- Granted: 1983-08-23
- Earliest claimed: 1981-01-29
- Assignees: Catalytic Generators, Inc.
- Inventors: Hugh T. Freebairn; Tony L. Towns
- Web page: https://patentgrep.com/patent/US4400291A

## CPC

- C07C 1/24: by elimination of water
- Y02P 20/52: using catalysts, e.g. selective catalysts
- Y02P 30/20: using bio-feedstock
- Y02P 30/40: Ethylene production
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An ethylene gas generating liquid composition for catalytic conversion to ethylene. Ethanol is the primary ingredient of the liquid composition but there is also present 1.0% to 15% methanol, 0.1% to 10% of an ester such as amyl acetate and 0.1% to 15% of an aliphatic alcohol such as isopropanol. This liquid composition has been found to maintain a high conversion efficiency for the catalyst and minimizes the production of by-products.

## Claims

### Claim 1

A liquid composition for the catalytic conversion to ethylene comprising, by volume,
(a) 1.0% to 15% methanol,
(b) 0.1% to 10% of an ester having not more than 10 carbon atoms and formed from a monocarboxylic acid of not greater than 5 carbon atoms,
(c) 0.1% to 15% of a compound selected from the group consisting of an aliphatic alcohol having from 3 to 5 carbon atoms and an aliphatic hydrocarbon having 5 to 9 carbon atoms and
(d) ethanol.

### Claim 2 (depends on 1)

The composition of claim 1 including,
said methanol being up to 10% by volume.

### Claim 3 (depends on 1)

The composition of claim 1 including,
said aliphatic alcohol and said aliphatic hydrocarbon be present in the amount up to 10% by volume.

### Claim 4 (depends on 1, 2, 3)

The composition of claim 1, 2 or 3 including,
said esters being present in the amount up to 5%.

### Claim 5 (depends on 1)

The composition of claim 1 including,
said methanol being up to 10% by volume,
said aliphatic alcohol and said aliphatic hydrocarbon being present in the amount up to 10% by volume, and
said esters being present in the amount up to 5%.

### Claim 6 (depends on 1)

The composition of claim 1 including,
said methanol being present up to 5% by volume.

### Claim 7 (depends on 1)

The composition of claim 1 including,
said aliphatic alcohol and said aliphatic hydrocarbon being present in the amount up to 5% by volume.

### Claim 8 (depends on 1, 6, 7)

The composition of claim 1, 6 or 7 including,
said esters being present in the amount up to 0.5% to 2%.

### Claim 9 (depends on 1)

The composition of claim 1 including,
said methanol being up to 5% by volume,
said aliphatic alcohol and said aliphatic hydrocarbon being present in the amount up to 5% by volume, and
said esters being present in the amount up to 0.5% to 2%.

### Claim 10 (depends on 1)

The composition of claim 1 including,
said esters are selected from the group consisting of amyl acetate and ethyl acetate.

### Claim 11 (depends on 1, 3, 5, 7)

The composition of claim 1, 3, 5, 7, or 9 including,
said ester in amyl acetate and said aliphatic alcohol is isopropyl alcohol.