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Corn oil/methanol/n-butyl alcohol mixed fuel suitable for diesel engine

A technology of mixed fuel and corn oil, which is applied in the direction of fuel, biofuel, liquid carbon-containing fuel, etc., can solve the problems of unstable mutual solubility, engine deflagration, and high fuel consumption, so as to promote the process of oil and gas mixing, solve excessive dependence, and source of raw materials wide range of effects

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

However, methanol and corn oil are not stable and miscible at normal ambient temperature, and because the cetane number of methanol is relatively low, mixing corn oil with methanol will reduce the cetane number
A too low cetane number can easily lead to unstable operation of the diesel engine, such as engine deflagration, difficult starting, high fuel consumption, etc.
There are no related reports about corn oil / methanol / n-butanol blended fuel

Method used

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  • Corn oil/methanol/n-butyl alcohol mixed fuel suitable for diesel engine

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Effect test

preparation example Construction

[0022] The preparation method of the above-mentioned fuel of the present invention comprises the following steps: measure each component according to the volume ratio, first add methanol into corn oil to form an incomplete miscible mixed solution, then add n-butanol into the mixed solution under stirring and mix evenly, That is to reconcile the mixed fuel. The mixing temperature is preferably between 30°C and 50°C.

[0023] By testing the kinematic viscosity of the novel mixed fuel containing methanol provided by the present invention is 2.43-4.31mm 2 / s. The diesel kinematic viscosity suitable for conventional diesel engines is 2.0-4.5mm 2 / s, so the novel mixed fuel containing methanol provided by the present invention can be applied in diesel engines.

[0024] The novel mixed fuel provided by the invention has good mutual solubility of corn oil / methanol / n-butanol, and the obtained mixed fuel has no stratification during long-term storage.

[0025] At 40°C, when the blen...

Embodiment 1

[0029] Methanol 20L, corn oil 12.5L, n-butanol 17.5L.

[0030] The corn oil is commercially available national first-grade transgenic corn oil. The mass percent concentration of methanol is 99.5%. The mass percent concentration of n-butanol is 99.0%.

[0031] Configuration method: first add methanol to corn oil to form an incomplete miscible mixture, then add n-butanol to the mixture under stirring and mix evenly to obtain a blended fuel. The mixing temperature was 40°C.

[0032] Tested: kinematic viscosity is 4.31mm 2 / s, to meet the requirements of diesel engines.

Embodiment 2

[0034] Methanol 30L, corn oil 7.5L, n-butanol 12.5L.

[0035] The corn oil is commercially available national first-grade transgenic corn oil. The mass percent concentration of methanol is 99.9%. The mass percent concentration of n-butanol is 99.5%.

[0036] The configuration method is the same as in embodiment 1

[0037] Tested: kinematic viscosity is 2.43mm 2 / s, to meet the requirements of diesel engines.

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Abstract

The invention discloses corn oil / methanol / n-butyl alcohol mixed fuel suitable for a diesel engine, which is prepared by mixing all the components according to a certain volume ratio within a temperature range of 30-50 DEG C through a mixing technical means to obtain the mixed fuel. Methanol is firstly added into corn oil to form an incompletely intermiscible mixed solution, then the n-butyl alcohol 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. The methanol is added, so that the combustion efficiency can be improved, and the emission of nitrogen oxides (NOx) and particulate matters (PM) is reduced. By adding the n-butyl alcohol, the cetane number of a corn oil-methanol 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 corn oil / methanol / n-butanol mixed fuel suitable for diesel engines. Background technique [0002] Corn oil is the most productive of the vegetable oils extracted from corn seeds. Corn oil has the advantages of oxidative stability and relatively low volatility like other vegetable oils. However, the high viscosity and density of corn oil has become a prominent defect in its application as a fuel. Therefore, long-term use of corn oil can lead to engine durability problems such as coking of fuel injectors and poor fuel atomization and sticking of piston rings with higher NOx emissions. The use of corn oil as a diesel alternative fuel has been slow to progress due to its high viscosity. [0003] At present, the main method of using vegetable oil as fuel is to produce biodiesel through transesterification. This type of res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02
CPCC10L1/02C10L2270/026Y02E50/10
Inventor 金超王烨昊刘海峰刘章浩陈新宇孙天韵耿振龙刘昕张曦媛
Owner TIANJIN UNIV
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