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Corn oil/ethanol/tetrahydrofuran mixed fuel suitable for diesel engine

A technology of tetrahydrofuran and mixed fuel, which is applied in the direction of fuel, liquid carbon-containing fuel, petroleum industry, etc., can solve problems such as no reports of corn oil/ethanol/tetrahydrofuran mixed fuel, and achieves the promotion of oil and gas mixing process, wide range of raw material sources, Overcome the effects of over-dependence

Inactive Publication Date: 2020-02-14
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are no related reports on corn oil / ethanol / THF blended fuel

Method used

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  • Corn oil/ethanol/tetrahydrofuran mixed fuel suitable for diesel engine

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Experimental program
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Effect test

preparation example Construction

[0025] The preparation method of the fuel of the present invention comprises the following steps: measure each component according to the volume ratio, first add ethanol into corn oil to form an incomplete miscible mixed solution, and then add tetrahydrofuran into the mixed solution under stirring and mix evenly to obtain a blend mixed fuel. The mixing temperature is preferably between 40-50°C.

[0026] The kinematic viscosity of the novel mixed fuel containing ethanol provided by the invention is 3.04~4.26mm 2 / s, meeting the fuel viscosity range of 2.0-4.5mm suitable for traditional diesel engines 2 / s.

[0027] The novel mixed fuel provided by the invention has good mutual solubility of corn oil / ethanol / tetrahydrofuran, and the obtained mixed fuel has no stratification during long-term storage.

[0028] At 40°C, when the blending ratio of ethanol is between 10% and 90%, the miscibility of corn oil and formazan / ethanol cannot be realized. but from figure 1 It can be see...

Embodiment 1

[0032] Ethanol 11.0L, corn oil 7.4L, tetrahydrofuran 1.6L.

[0033] The corn oil is commercially available grade one corn oil. The ethanol mass percentage concentration is 99.9%. The mass percent concentration of THF is 99.5%.

[0034] Configuration method: first add ethanol to corn oil to form an incomplete miscible mixture, then add tetrahydrofuran to the mixture under stirring and mix evenly to obtain a blended fuel mixture. The mixing temperature is 40°C.

[0035] After testing, the kinematic viscosity of the mixed fuel is 3.09mm 2 / s, meeting the traditional diesel viscosity standard 2.0-4.5mm 2 / s request.

Embodiment 2

[0037] Ethanol 7.1L, corn oil 3.0L, tetrahydrofuran 1.0L.

[0038] The corn oil is commercially available first-grade transgenic corn oil. The ethanol mass percentage concentration is 99.9%. The mass percent concentration of THF is 99.5%.

[0039] The configuration method is the same as in embodiment 1

[0040] After testing, the kinematic viscosity of the mixed fuel is 4.26mm 2 / s, meeting the traditional diesel viscosity standard 2.0-4.5mm 2 / s request.

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Abstract

The invention discloses corn oil / ethanol / THF mixed fuel suitable for a diesel engine. Components are mixed according to a certain volume ratio within a temperature range of 40-50 DEG C through a mixing technical means to obtain the mixed fuel. Ethanol is firstly added into corn oil to form an incompletely intermiscible mixed solution, then THF is added into the mixed solution while stirring, and the mixture is uniformly mixed to obtain the mixed fuel. The obtained mixed fuel is stable and homogeneous, and the overall viscosity of the system meets the requirements of traditional diesel fuel. Byadding the ethanol, the combustion efficiency can be improved, and the emission of nitrogen oxides (NOx) and particulate matters (PM) can be reduced. By adding the THF, the cetane number of a corn oil-ethanol basic system can be improved to a certain extent, the overall density of a fuel system is improved, pressure wave transmission in the fuel injection process is faster, and therefore the input capacity and the power performance of an energy engine are improved.

Description

technical field [0001] The invention relates to the field of renewable alternative energy sources for internal combustion engines, in particular to a novel mixed fuel suitable for diesel engines. Background technique [0002] The preparation of biofuels from vegetable oils has received extensive attention as an alternative to petroleum fuels. As a major food crop in my country, corn can be fully utilized to prepare biofuels, which is of great significance to alleviate the problem of insufficient petroleum energy in our country. At present, the method of using vegetable oil to prepare biofuel is mainly through transesterification treatment, that is, to study the transesterification reaction of different ratios of alcohol mixtures under different conditions. For example, Yuan Hong et al. used castor oil as a raw material, and with the assistance of microwaves, optimized the process conditions by using response surface methodology to obtain solid acid H 2 SO 4 Optimum proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02C10L1/185
CPCC10L1/02C10L1/1855C10L2270/026
Inventor 金超陈新宇刘海峰孙天韵王烨昊刘章浩耿振龙刘昕张曦媛
Owner TIANJIN UNIV
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