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Gas oil composition

A composition and gas oil technology, applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve problems such as cavitation damage, unsatisfied, kinematic viscosity and volume calorific value cannot be avoided

Inactive Publication Date: 2013-01-02
NIPPON OIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this gas oil is an extremely light fuel containing a large fraction of kerosene, since this document intends to solve the problems related to low temperature startability, and therefore the technology of improving low temperature properties with cold flow improvers cannot be selected
As a result, a significant reduction in density, kinematic viscosity and volumetric calorific value cannot be avoided, and in addition, it is undeniable that this reduction will lead to a significant deterioration in fuel consumption, injection pump seizure, cavitation damage and defects in the ability to restart at high temperatures
That is, it is very difficult to design a high-quality fuel that can achieve the high-grade requirements sought for a gas oil composition that simultaneously has environmental load reducing properties, excellent winter practicality, and good fuel efficiency. Inhibition of consumption deterioration, and based on research, there are no examples or discovery of such fuels satisfying the various properties required for fuels and practical methods of producing said fuels other than the foregoing fully stated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2 and comparative example 1

[0164] Base oils having the properties listed in Table 1 were blended to produce the gas oil compositions listed in Table 2 (Examples 1 and 2 and Comparative Example 1). Fischer-Tropsch base oils 1 and 2 are hydrocarbon mixtures produced by converting natural gas to waxes or middle distillates by the Fischer-Tropsch reaction followed by hydrotreating. The reaction conditions for each Fischer-Tropsch synthetic base oil varied. Fischer-Tropsch synthetic base oil 1 is a base oil produced by actively performing isomerization. Fischer-Tropsch base oil 2 is a base oil resulting from a process in which too much emphasis is not on isomerization. The highly hydrotreated base oil is a hydrocarbon base oil produced by further hydrotreating the gas oil base oil to further reduce the sulfur content and aromatics content. The processed oil derived from animal oil or vegetable oil is an oil produced by hydrotreating palm oil (full fraction) used as a raw material to remove foreign substanc...

Embodiment 3 and 4 and comparative example 2

[0194] Base oils having the properties listed in Table 4 were blended to produce the gas oil compositions listed in Table 5 (Examples 3 and 4 and Comparative Example 2). Fischer-Tropsch base oils 3 and 4 are hydrocarbon mixtures produced by converting natural gas to waxes or middle distillates by the Fischer-Tropsch reaction followed by hydrotreating. The reaction conditions for each Fischer-Tropsch synthetic base oil varied. Fischer-Tropsch synthetic base oil 3 is a base oil produced by actively performing isomerization. Fischer-Tropsch base oil 4 is a base oil resulting from a process in which too much emphasis is not on isomerization. The highly hydrotreated base oil is a hydrocarbon base oil produced by further hydrotreating the gas oil base oil to further reduce the sulfur content and aromatics content. The processed oil derived from animal oil or vegetable oil is an oil produced by hydrotreating palm oil (full fraction) used as a raw material to remove foreign substanc...

Embodiment 5 and 6 and comparative example 3

[0214] Base oils having the properties listed in Table 7 were blended to produce the gas oil compositions listed in Table 8 (Examples 5 and 6 and Comparative Example 3). Fischer-Tropsch base oils 5 and 6 are hydrocarbon mixtures produced by converting natural gas to waxes or middle distillates by the Fischer-Tropsch reaction followed by hydrotreating. The reaction conditions for each Fischer-Tropsch synthetic base oil varied. Fischer-Tropsch synthetic base oil 5 is a base oil produced by actively performing isomerization. Fischer-Tropsch base oil 6 is a base oil resulting from a process in which too much emphasis is not on isomerization. The highly hydrotreated base oil is a hydrocarbon base oil produced by further hydrotreating the gas oil base oil to further reduce the sulfur content and aromatics content. The processed oil derived from animal oil or vegetable oil is an oil produced by hydrotreating palm oil (full fraction) used as a raw material to remove foreign substanc...

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Abstract

Provided is a winter gas oil composition satisfactory in environmental load reduction, low-temperature performance and fuel consumption, obtained by adding a lubricity improver and a low-temperature fluidity improver according to prescribed steps to a composition which contains at least 60% by volume of an F-T synthesis base oil and has a sulfur content of 5ppm by mass or below, an aromatic content of 10% by volume or below, an oxygen content of 100ppm or below, a density of 760 to 840kg / m<3>, an end point of 360 DEG C or below, a total insoluble content of 0.5mg / 100mL or below as determined after accelerated oxidation test, an HFRR wear scar diameter (WS1.4) of 400 mu m or below, and a specific relationship among n-parafin contents and a sum thereof.

Description

[Field of invention] [0001] The present invention relates to a gas oil composition mainly containing a Fischer-Tropsch synthetic base oil, and more particularly to a gas oil composition which can achieve reduction in environmental load, low-temperature properties, and low fuel consumption together and is suitable for use in winter. [Background of the invention] [0002] Generally, gas oil compositions are produced by blending one or more types of base oils by subjecting straight-chain gas oil or straight-chain kerosene produced by atmospheric distillation of crude oil to hydrorefining or hydrodesulfurization And produced. In particular, it is often the case that the blending ratio of the aforementioned kerosene base oil and gas oil base oil is adjusted to ensure cold fluidity during winter. If necessary, these base oils are blended with additives such as cetane number improvers, detergents and cold flow improvers (see, for example, the following Non-Patent Document No. 1). ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/08C10L1/182C10L1/188C10L1/19C10L1/196C10L1/222C10L1/224
Inventor 菅野秀昭
Owner NIPPON OIL CO LTD