CN106833767A - A kind of biodiesel - Google Patents

Abstract

The invention provides a biodiesel, comprising the following components by weight: 60-150 parts of vegetable oil, 10-40 parts of methanol, 3-10 parts of catalyst, 2-5 parts of oleic acid, 1-5 parts of fatty acid, crystal form 3-6 parts of salt, 0.02-0.06 parts of isooctyl nitrate. The formula of the invention is simple, the raw materials are easy to obtain, and the technology is easy to popularize. Compared with conventional diesel oil, the biodiesel has good environmental protection performance, lubricating performance, combustion performance and safety performance.

Description

a biodiesel

technical field

The invention relates to the technical field of fuel oil, in particular to biodiesel.

Background technique

Daily diesel oil is extracted from non-renewable petroleum resources. As petroleum is depleted day by day, finding alternative fuels is an inevitable trend. The combustion of petrochemical diesel will inevitably produce harmful emissions, while biodiesel is a clean and green energy source, which is transformed from biomass raw materials. Vigorously developing biodiesel is of great strategic significance to environmental protection and reducing oil dependence. At present, most of the biodiesel production processes in the market are complicated, and the requirements for preparation equipment are relatively high, so it is difficult to realize promotion.

Contents of the invention

The purpose of the present invention is to disclose a biodiesel to solve one or more of the above-mentioned problems in the prior art.

To achieve the above object, the present invention provides a biodiesel, comprising the following components by weight: 60-150 parts of vegetable oil, 10-40 parts of methanol, 3-10 parts of catalyst, 2-5 parts of oleic acid, 1- 5 parts, 3-6 parts of crystalline salt, 0.02-0.06 parts of isooctyl nitrate. The vegetable oil is one or more of tea seed oil, palm oil, tung oil, rice oil, soybean oil, corn oil, sunflower oil, cottonseed oil, and peanut oil. The catalyst is one or more of sodium hydroxide, potassium hydroxide and sodium methoxide. The crystalline salt is one or more of silicate or aluminosilicate.

The invention has the following beneficial effects: the formula of the invention is simple, the raw materials are easy to obtain, and the technology is easy to popularize. Compared with conventional diesel oil, the biodiesel has good environmental protection performance, lubricating performance, combustion performance and safety performance.

detailed description

The present invention will be described in detail below in conjunction with various embodiments, but it should be noted that these embodiments are not limitations of the present invention, and those of ordinary skill in the art can make functional, method, or structural equivalent transformations or replacements based on these embodiments. , all fall within the protection scope of the present invention.

Example 1

Preparation of raw materials: including the following components by weight: 60 parts of soybean oil, 10 parts of methanol, 3 parts of sodium hydroxide, 2 parts of oleic acid, 1 part of fatty acid, 3 parts of silicate, and 0.02 parts of isooctyl nitrate.

Preparation steps and methods:

S1. Add soybean oil into a reaction kettle with stirring equipment at a stirring speed of 330r/min, then add oleic acid, fatty acid, and part of methanol, and stir at high speed for 2 hours at room temperature to form a uniform emulsion;

S2, adding silicate to the above emulsion, stirring at high speed for 2 hours;

S3. Sodium hydroxide is dissolved in the remaining methanol, added to the emulsion of S2, and refluxed at 65° C. for 1 hour;

S4. After the reaction is completed, the temperature of the reaction material is lowered to 40° C., and static separation is carried out to separate by-products such as glycerin in the lower layer to obtain crude biodiesel;

S5. After molecular distillation, isooctyl nitrate is added to obtain standard biodiesel.

Example 2

Material preparation: including the following components by weight: 30 parts of soybean oil, 50 parts of rapeseed oil, 30 parts of rice oil, 35 parts of methanol, 3 parts of sodium hydroxide, 2 parts of potassium hydroxide, 2 parts of sodium methoxide, 4 parts of oleic acid 3 parts, 3 parts of fatty acid, 3 parts of silicate, 2 parts of aluminosilicate, 0.04 part of isooctyl nitrate.

Preparation steps and methods:

S1. Add soybean oil, rapeseed oil, and rice oil into a reaction kettle with stirring equipment at a stirring speed of 330r/min, then add oleic acid, fatty acid, and part of methanol, and stir at high speed for 2 hours at room temperature to form a uniform emulsion;

S2. Add silicate and aluminosilicate to the above emulsion, and stir at high speed for 2 hours;

S3. Sodium hydroxide, potassium hydroxide, and sodium methoxide are dissolved in the remaining methanol, added to the emulsion of S2, and refluxed at 65° C. for 1 hour;

S4. After the reaction is completed, the temperature of the reaction material is lowered to 40° C., and static separation is carried out to separate by-products such as glycerin in the lower layer to obtain crude biodiesel;

S5. After molecular distillation, isooctyl nitrate is added to obtain standard biodiesel.

Example 3

Raw materials: including the following components by weight: 50 parts of palm oil, 50 parts of rapeseed oil, 50 parts of soybean oil, 40 parts of methanol, 5 parts of sodium hydroxide, 3 parts of potassium hydroxide, 2 parts of sodium methoxide, 5 parts of oleic acid 5 parts, 5 parts of fatty acid, 3 parts of silicate, 3 parts of aluminosilicate, 0.06 part of isooctyl nitrate.

Preparation steps and methods:

S1. Add palm oil, rapeseed oil, and soybean oil to a reaction kettle with stirring equipment, and the stirring speed is 330r/min, then add oleic acid, fatty acid, and part of methanol, and stir at high speed for 2 hours at room temperature to form a uniform emulsion;

S2. Add silicate and aluminosilicate to the above emulsion, and stir at high speed for 2 hours;

S3. Sodium hydroxide, potassium hydroxide, and sodium methoxide are dissolved in the remaining methanol, added to the emulsion of S2, and refluxed at 65° C. for 1 hour;

S4. After the reaction is completed, the temperature of the reaction material is lowered to 40° C., and static separation is carried out to separate by-products such as glycerin in the lower layer to obtain crude biodiesel;

S5. After molecular distillation, isooctyl nitrate is added to obtain standard biodiesel.

Claims (4)

1. a kind of biodiesel, it is characterised in that the component including following weight portion：Vegetable oil 60-150 parts, methyl alcohol 10-40 Part, catalyst 3-10 parts, oleic acid 2-5 parts, aliphatic acid 1-5 parts, 3-6 parts, isooctyl ester nitrate 0.02-0.06 parts of crystal type salt.

2. a kind of biodiesel as claimed in claim 1, it is characterised in that：The vegetable oil is tea-seed oil, palm oil, vegetable seed One or more in oil, Oleum Verniciae fordii, Rice oil, soybean oil, corn oil, sunflower oil, cottonseed oil, peanut oil.

3. a kind of biodiesel as claimed in claim 1, it is characterised in that：The catalyst be NaOH, potassium hydroxide, One or more of sodium methoxide.

4. a kind of biodiesel as claimed in claim 1, it is characterised in that：The crystal type salt is silicate or alumino-silicate One or two.