Clean, high efficient and environmentally friendly gasoline product

Abstract

A clean, high efficient and environmentally friendly gasoline product with main fractions of C6-C11 has a low octane rating and a low spontaneous ignition temperature. It can be compressively ignited within an internal combustion engine with a compression ratio of 16-19. Small amount of ethanol or dimethyl ether can be added into the gasoline product.

Claims

1. A gasoline product, comprising, main components of a mixture of hydrocarbons of C6, C7, C8, C9, C10, and C11; wherein the gasoline product is ignitable by compression at a compression ratio from 8 to 22 in an internal combustion engine; wherein the content of said mixture of hydrocarbons is more than 50% by weight; wherein the components include straight-chain alkanes and their isomers and olefins; wherein the gasoline product has an octane number of 0-58.7; and wherein said gasoline product is used in internal combustion engine by diffusion compression ignition.

2. The gasoline product of claim 1, wherein the mixture of hydrocarbons further includes C5.

3. The gasoline product of claim 1, wherein the mixture of hydrocarbons further includes C12.

4. The gasoline product of claim 1, wherein the mixture of hydrocarbons further includes C5 and C12.

5. The gasoline product of claim 1, which further comprises ethanol, dimethyl ether or a combination thereof.

6. The gasoline product of claim 1, wherein the gasoline product has an octane number of 0-50.

7. The gasoline product of claim 1, wherein the internal combustion engine is a naturally aspirated engine or a forced induction engine.

8. The gasoline product of claim 1, wherein the gasoline product is ignitable by compression at a compression ratio from 8 to 16.

9. The gasoline product of claim 1, which further comprises kerosene.

10. The gasoline product of claim 1, which further comprises diesel.

11. The gasoline product of claim 1, which further comprises kerosene and diesel.

Description

SPECIFIC EMBODIMENTS OF THE INVENTION

Embodiment 1

(1) N-heptane, n-hexane and gasoline 93# are mixed together with a ratio of 1:1:1. When each of the three components occupies one-third of the entire volume respectively (they have equal volume before being mixed), the octane rating of the mixed fuel is approximately 39.3 (corresponding to gasoline 39#). The mixed fuel can be compressively ignited by an engine with a compression ratio of 17.6 under normal temperature and pressure.

Embodiment 2

(2) Raffinate oil after aromatic hydrocarbon extraction (a reformate with aromatic hydrocarbon removed therefrom, the main components of the raffinate oil after aromatic hydrocarbon extraction consisting of C6-C11 alkanes) has an octane rating of about 58.7. The oil can be compressively ignited by a 295T internal combustion engine with a compression ratio of 17 under normal temperature and pressure.

Embodiment 3

(3) C5 fraction (hereinafter referred to as gasoline fraction) is added into the fractions of gasoline having a low octane rating, and the mixed oil has an octane rating of 40. In this case, it can be compressively ignited by an engine with a compression ratio of 12 under the pressurized air with 2 kg/cm.sup.2.

Embodiment 4

(4) Kerosene fraction is added into the fractions of gasoline having a low octane rating, and the mixed oil has an octane rating of 30. In this case, it can be compressively ignited by an internal combustion engine with a compression ratio of 17 under normal temperature and pressure.

Embodiment 5

(5) Diesel fraction (30%) is added into the fractions of gasoline having a low octane rating (70%), and the mixed oil has an octane rating of 30. In this case, it can be compressively ignited by a 493Q internal combustion engine with a compression ratio of 18 under normal temperature and pressure.

Embodiment 6

(6) Kerosene fraction (10%) and diesel fraction (50%) are added into the fractions of gasoline having a low octane rating (40%), and the mixed oil has an octane rating of 40. In this case, it can be compressively ignited by an internal combustion engine with the compression ratio of 17 under normal temperature and pressure.

(7) Diffusion compression ignition internal combustion engine having a pressurized gasoline injection system (pressurized fuel injection pump and pressurized fuel nozzle) is especially suitable of extensive use of the new gasoline product having a low octane rating.