# US 10,246,657 B2 · Fuel blends for homogeneous charge compression ignition engines

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,246,657 B2
- Document ID: US10246657B2
- Status: Granted
- Kind: B2
- Application number: 14/551,319
- Filed: 2014-11-24
- Published: 2015-06-11
- Granted: 2019-04-02
- Earliest claimed: 2013-12-11
- Assignees: Phillips 66 Company
- Applicants: Phillips 66 Company
- Inventors: Yu Shi; Garry C. Gunter; Bradley M. Taylor
- Web page: https://patentgrep.com/patent/US10246657B2

## CPC

- C10L 1/08: for compression ignition
- C10L 1/04: essentially based on blends of hydrocarbons
- C10L 2270/026: for diesel engines, e.g. automobiles, stationary, marine
- C10L 2300/40: Mixture of four or more components
- C10L: FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS

## Abstract

The present disclosure relates to novel hydrocarbon fuel blends that provide increased power and a broader operating range when utilized as fuel for homogeneous charge compression ignition engines.

## Claims

### Claim 1

A fuel for a homogeneous charge compression ignition engine, comprising:
(a) a mixture of hydrocarbons, each hydrocarbon in the mixture containing from 4 to 14 carbon atoms;
(b) at least 20 wt. % n-paraffins;
(c) at least 30 wt. % naphthenes;
(d) 20 wt. % or less of aromatic hydrocarbons;
(e) 5 wt. % or less of olefins.

### Claim 2 (depends on 1)

The fuel of claim 1, wherein at least 90 wt. % of the mixture of hydrocarbons consists of hydrocarbons containing from 6 to 10 carbon atoms.

### Claim 3 (depends on 1)

The fuel of claim 1, wherein at least 75 wt. % of the mixture of hydrocarbons consists of hydrocarbons containing from 7 to 9 carbon atoms.

### Claim 4 (depends on 1)

The fuel of claim 1, wherein 15 wt. % or less of the hydrocarbons contain five or fewer carbon atoms.

### Claim 5 (depends on 1)

The fuel of claim 1, wherein the fuel comprises at least 25 wt. % n-paraffins.

### Claim 6 (depends on 1)

The fuel of claim 1, wherein the fuel comprises at least 30 wt. % of n-paraffins.

### Claim 7 (depends on 1)

The fuel of claim 1, wherein the fuel comprises at least 35 wt. % of n-paraffins.

### Claim 8 (depends on 1)

The fuel of claim 1, wherein the fuel comprises at least 35 wt. % naphthenes.

### Claim 9 (depends on 1)

The fuel of claim 1, wherein the fuel comprises 15 wt. % or less of aromatic hydrocarbons.

### Claim 10 (depends on 1)

The fuel of claim 1, wherein the fuel comprises 10 wt. % or less of aromatic hydrocarbons.

### Claim 11 (depends on 1)

The fuel of claim 1, wherein the fuel additionally comprises 3 wt. % or less of olefins.

### Claim 12 (depends on 1)

The fuel of claim 1, wherein the fuel additionally comprises 2 wt. % or less of olefins.

### Claim 13 (depends on 1)

The fuel of claim 1, wherein the fuel additionally comprises 1 wt. % or less of olefins.

### Claim 14 (depends on 1)

The fuel of claim 1, wherein the fuel possesses a dry vapor pressure equivalent of 10 psi (69 kPa) or less.

### Claim 15 (depends on 1)

The fuel of claim 1, wherein the fuel possesses a dry vapor pressure equivalent 8 psi (55 kPa) or less.

### Claim 16 (depends on 1)

The fuel of claim 1, wherein the quantity (wt. %) of naphthenes is greater than the quantity (wt. %) of normal paraffins.

### Claim 17

A fuel for a homogeneous charge compression ignition engine, comprising:
(a) at least 90 wt. % hydrocarbons containing from six to ten carbon atoms;
(b) at least 20 wt. % normal paraffins;
(c) at least 30 wt. % naphthenes;
(d) 20 wt. % or less of aromatic hydrocarbons;
(e) 3 wt. % or less of olefins.

### Claim 18

A fuel for a homogeneous charge compression ignition engine possessing a dry vapor pressure equivalent of 8 psi (55 kPa) or less, and comprising:
(a) hydrocarbons containing from 4 to 14 carbon atoms, wherein at least 75 wt. % of the hydrocarbons contain from 7 to 9 carbon atoms;
(b) at least 25 wt. % n-paraffins;
(c) at least 30 wt. % naphthenes;
(d) 15 wt. % or less of aromatic hydrocarbons;
(e) 3 wt. % or less of olefins.