CN111171883A

CN111171883A - Valerate diesel oil mixed fuel

Info

Publication number: CN111171883A
Application number: CN202010164359.8A
Authority: CN
Inventors: 李福伟; 孙鹏; 高广; 吴淼江; 龙向东; 赵泽伦; 聂超; 李成阳
Original assignee: Lanzhou Institute of Chemical Physics LICP of CAS
Current assignee: Lanzhou Institute of Chemical Physics LICP of CAS
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-05-19

Abstract

The invention discloses a valerate diesel oil mixed fuel, which is prepared by mixing valerate and commercial diesel oil according to the following volume percentages: 1-30% of valerate and 70-99% of commercial diesel. The valerate is prepared by converting biomass cellulose, has a high combustion heat value, does not discharge harmful substances to the outside due to the fact that the valerate does not contain elements such as sulfur, nitrogen and the like, and can achieve the effects of energy conservation and emission reduction to a certain extent. The mixed fuel formed by adding the valerate into the commercial diesel oil can be kept stable and not layered for a long time, all technical indexes (intersolubility, low-temperature fluidity, flash point, density, distillation range, oxidation stability, antiknock property, corrosion resistance, vapor pressure and cetane number) reach the standard of the commercial diesel oil, the oil consumption and the oil consumption rate are equivalent to those of the original grade diesel oil, the product performance is stable, the diesel engine can stably work, and the safety and the anti-explosion property can meet the safety requirements of the vehicle fuel and can achieve the effects of energy conservation and emission reduction to a certain extent.

Description

Valerate diesel oil mixed fuel

Technical Field

The invention relates to a diesel oil mixed fuel, in particular to a valerate diesel oil mixed fuel, and belongs to the technical field of clean energy.

Background

The increasing exhaustion of coal, petroleum and other stone resources and the environmental deterioration caused in the use process become two major bottlenecks that restrict the sustainable development of human society and economy. The double problems of resources and environment greatly promote the research of people on the conversion and utilization of renewable biomass resources. Lignocellulose is the most abundant renewable organic carbon resource in nature and widely available. The lignocellulose mainly comprises three major parts, namely cellulose (30-50%), hemicellulose (20-40%) and lignin (10-20%). The method can obtain the valerate oil product for reducing the dependence of human beings on fossil energy and reducing CO emission through hemicellulose, cellulose and downstream C5 platform molecules of hydrolysis of the lignocellulose₂Has very important significance.

The lignocellulose derived pentanoate does not contain sulfur and nitrogen elements, has better lubricity, and can be used as an oxygen-containing fuel to partially replace diesel. But at present, researches on the physicochemical properties of the oil products of the pentanoate compound diesel oil and the combustion and emission performances of the diesel oil on an internal combustion engine are few at home and abroad, and certain difficulty is caused to the popularization and the use of the liquid fuel.

Disclosure of Invention

The invention aims to provide a valerate diesel oil mixed fuel which is used for partially replacing diesel oil and improving an energy structure.

The valerate diesel oil mixed fuel is prepared by mixing valerate and commercial diesel oil. Wherein the pentanoate and the commercial diesel oil are mixed according to the following volume percentages: 1-30% of valerate and 70-99% of commercial diesel.

The pentanoate esters are: methyl n-valerate, ethyl n-valerate, n-propyl n-valerate, isopropyl n-valerate, n-butyl n-valerate, sec-butyl n-valerate, isobutyl n-valerate, tert-butyl n-valerate, methyl 2-methylbutyrate, ethyl 2-methylbutyrate, n-propyl 2-methylbutyrate, isopropyl 2-methylbutyrate, n-butyl 2-methylbutyrate, sec-butyl 2-methylbutyrate, isobutyl 2-methylbutyrate, tert-butyl 2-methylbutyrate, methyl 3-methylbutyrate, ethyl 3-methylbutyrate, n-propyl 3-methylbutyrate, isopropyl 3-methylbutyrate, n-butyl 3-methylbutyrate, sec-butyl 3-methylbutyrate, isobutyl 3-methylbutyrate, tert-butyl 3-methylbutyrate, methyl pivalate, ethyl pivalate, at least one of n-propyl pivalate, isopropyl n-pivalate, n-butyl pivalate, sec-butyl pivalate, isobutyl pivalate, tert-butyl pivalate, methyl levulinate, ethyl levulinate, n-propyl levulinate, isopropyl levulinate, n-butyl levulinate, sec-butyl levulinate, isobutyl levulinate, tert-butyl levulinate, or a mixture of two or more thereof.

The commercial diesel oil is commercially available diesel oil (including light diesel oil or heavy diesel oil) or base oil (including base oil of diesel oil-no blending agent is added after refining).

The valerate can be prepared by converting biomass cellulose, has a high combustion heat value, does not discharge harmful substances to the outside due to the fact that the valerate does not contain elements such as sulfur, nitrogen and the like, and can achieve the effects of energy conservation and emission reduction to a certain extent. The mixed fuel formed by adding the valerate into the commercial diesel oil can be kept stable and not layered for a long time, all technical indexes (intersolubility, low-temperature fluidity, flash point, density, distillation range, oxidation stability, antiknock property, corrosion resistance, vapor pressure and cetane number) reach the standard of the commercial diesel oil, the oil consumption and the oil consumption rate are equivalent to those of the original grade diesel oil, the product performance is stable, the diesel engine can stably work, the safety and the anti-explosion property can meet the safety requirement of the vehicle fuel, and meanwhile, a certain energy-saving and emission-reducing effect can be achieved to a certain extent.

Detailed Description

The components, preparation and properties of the valerate diesel fuel blends of the present invention are described in detail in the following examples.

Example 1

The components are as follows: n-pentanoic acid methyl ester: 10% and 90% of 0# diesel oil (volume percentage);

preparation: the methyl n-valerate is directly added into the diesel oil and evenly mixed to obtain the mixed fuel. The performance index of the mixed fuel is shown in Table 1.

Example 2

The components are as follows: 1% of ethyl 2-methylbutyrate and 99% (volume percentage) of-20 # diesel oil;

preparation: the 2-methyl ethyl butyrate is directly added into the commercial diesel oil and uniformly mixed to obtain the mixed fuel. The performance index of the mixed fuel is shown in Table 1.

Example 3

The components are as follows: 30% of trimethyl propyl acetate and 70% of light base diesel oil (volume percentage);

preparation: the trimethyl propyl acetate is directly added into the commercial diesel oil and evenly mixed to obtain the diesel oil mixed fuel. The properties of the blended fuel are shown in Table 1.

Example 4

The components are as follows: 20% of tert-butyl 3-methylbutyrate and 80% of heavy base diesel oil (volume percentage);

preparation: directly adding the tert-butyl 3-methylbutyrate into commercial diesel oil and uniformly mixing to obtain the diesel oil mixed fuel. The properties of the blended fuel are shown in Table 1.

Example 5

The components are as follows: 10% of methyl valerate and 90% of 20# diesel oil (volume percentage);

preparation: the ethyl n-valerate is directly added into the commercial diesel oil and evenly mixed to obtain the diesel oil mixed fuel. The properties of the blended fuel are shown in Table 1.

Example 6

The components are as follows: 10% of ethyl valerate and 90% of 0# diesel oil (volume percentage);

preparation: directly adding n-butyl valerate into commercial diesel oil, and uniformly mixing to obtain the diesel oil mixed fuel. The properties of the diesel fuel blends are shown in Table 1.

Claims

1. A valerate diesel oil mixed fuel is prepared by mixing valerate and commercial diesel oil.

2. The valerate based diesel blend fuel of claim 1, wherein: the valerate and the commercial diesel oil are mixed according to the following volume percentages: 1-30% of valerate and 70-99% of commercial diesel.

3. The valerate-based diesel hybrid fuel according to claim 1 or 2, wherein: the pentanoate esters are: methyl n-valerate, ethyl n-valerate, n-propyl n-valerate, isopropyl n-valerate, n-butyl n-valerate, sec-butyl n-valerate, isobutyl n-valerate, tert-butyl n-valerate, methyl 2-methylbutyrate, ethyl 2-methylbutyrate, n-propyl 2-methylbutyrate, isopropyl 2-methylbutyrate, n-butyl 2-methylbutyrate, sec-butyl 2-methylbutyrate, isobutyl 2-methylbutyrate, tert-butyl 2-methylbutyrate, methyl 3-methylbutyrate, ethyl 3-methylbutyrate, n-propyl 3-methylbutyrate, isopropyl 3-methylbutyrate, n-butyl 3-methylbutyrate, sec-butyl 3-methylbutyrate, isobutyl 3-methylbutyrate, tert-butyl 3-methylbutyrate, methyl pivalate, ethyl pivalate, one or a mixture of any two or more of n-propyl pivalate, isopropyl n-pivalate, n-butyl pivalate, sec-butyl pivalate, isobutyl pivalate, tert-butyl pivalate, methyl levulinate, ethyl levulinate, n-propyl levulinate, isopropyl levulinate, n-butyl levulinate, sec-butyl levulinate, isobutyl levulinate and tert-butyl levulinate.

4. The valerate-based diesel hybrid fuel according to claim 1 or 2, wherein: the commercial diesel oil is commercially available diesel oil or base oil.