CN102373102A - High-cleanness blended gasoline and its preparation method - Google Patents

Abstract

The invention relates to high-cleanness blended gasoline and its preparation method. The blended gasoline is characterized by comprising the following components by weight: 35-45% of arene; 25-35% of naphtha; 6-10% of MTBE (methyl tert-butyl ether); 1-3% of an antiknock additive; 6-10% of heavy C5; and 10-15% of light C5. Specifically, the antiknock additive is prepared by the steps of: adding raw material 1#, raw material 2# and raw material 3# uniformly into a small tank according to a batching ratio, conducting stirring and blending for 2-3h, then leaving the mixture to stand for 8h. In the gasoline blending process, raw materials are mixed according to the ratio of the above formula in a blending tank for blending till blended uniformly, and then the mixture is left to stand for 8h. The blended gasoline of the invention has the advantages of good ignition startup performance, high flame resistance, strong stability, good intersolubility, strong driving force, good environmental protection property, and advanced blending technology. 6-8h is needed for refining a tank of gasoline in an oil refinery, while only 2h is needed for blending a tank of gasoline by the method of the invention. The antiknock additive in the invention can effectively enhance gasoline quality and RON (research octane number), reduce or eliminate peroxides.

Description

A kind of abrasive blended gasoline and preparation method

Technical field:

The present invention relates to a kind of blended gasoline, especially relate to a kind of abrasive blended gasoline, the invention still further relates to the preparation method of this blended gasoline.

Background technology:

The 90# that is supplied in the market, 93#, the 97# gasoline overwhelming majority are that refinery carries out fractionation by distillation with crude oil, and the component oil that gets through complicated production technique processing is again through being in harmonious proportion the gasoline that forms.Its technological process has pollution, waste material, waste gas, waste water to produce, and cost is higher, takes up an area of morely, and productive rate is lower, can not satisfy the current market requirement.But its associated resources also has part to can be used as gasoline mediation integral part and is not utilized except that as the industrial chemicals.

Summary of the invention

The object of the present invention is to provide a kind of utilization to be contained gasoline and be in harmonious proportion the raw material of integral part, produce a kind of abrasive blended gasoline and the preparation method that reach relevant national standard by the petrochemical plant depleted.

For realizing above-mentioned purpose, the technical scheme that the present invention adopted is: this kind abrasive blended gasoline is characterized in that the weight percent of each component is following:

Aromatic hydrocarbons 35-45%; Petroleum naphtha 25-35%; MTBE 6-10%; Antiknock dope 1-3%; Heavy carbon five 6-10%; Light carbon five 10-15%;

Said antiknock dope is made up of the batching of following each agent, and the weight percent of each agent is following:

1# raw material: tert.-butylbenzene 8-12%, methyl ether 35-45%, dimethyl phosphate 40-50%, methylnaphthalene 4-6%;

The 2# raw material: tert.-butylbenzene 12-18%, TAME 30-40%, dimethyl phosphate 40-50% is to formic acid 4-6%;

The 3# raw material: TAME 40-50%, dimethyl phosphate 35-45%, to formic acid 8-12%, methylnaphthalene 4-6%.

The preparation method of described a kind of abrasive blended gasoline is characterized in that under room temperature normal pressure situation, adopting following process step:

The first step: each raw material that can be used as gasoline mediation integral part that petrochemical plant is not utilized is distinguished incoming stock jar; Carry out feedstock analysis with sampling thief sample thief in head tank; Mainly according to state III; State IV standards checks that the analysis project of raw material mainly contains: sulphur content, RON, benzene content, colloid;

Second step: after above-mentioned leading indicator is qualified, raw material is squeezed into Mixer pot, add the 1-3% antiknock dope simultaneously by said formula rate;

The 3rd step was mixed in the raw material of several kinds of different components together, carry out physical modulated with, utilize recycle pump, carry out circulating inside, close completion in about 2-3 hour like the same the stirring repeatedly up and down of laundry washer clothes;

The 4th step: left standstill 7-9 hour, and carried out assay from the Mixer pot sampling again, after analytical results is qualified, go out to report to sales department by central laboratory, sales department takes the qualified products result can dispatch from the factory;

The preparation method of said antiknock dope: said 1# raw material, 2# raw material, 3# raw material by said proportion scale, are evenly added in the canister, stir and be in harmonious proportion 2-3 hour, left standstill again 8 hours, promptly processed antiknock dope.

The present invention's beneficial effect compared with prior art:

1, the ignition trigger performance is good: the ignition trigger performance is more superior, waits the low temp area product advantage very obvious northeastward.

2, flame resistivity is high: firing resistance is superior to be compared with the like product of isodose, and oil product can be run out of more milimeter number, and is more fuel-efficient.

3, stability is strong: oil product stability is stronger, puts more than half a year not stratifiedly, still can reach quality testing standard.

4, mutual solubility is good: high-clean gasoline can be used alternatingly with label gasoline with any on the market, and car body is had no effect.

5, power is strong: high-clean gasoline has more strong power experience and drives sense.

6, the feature of environmental protection is good: low with respect to similar market product pollution emission, and environmental protection more.

7, mediation technology is advanced.One jar of gasoline of refinery refining needs 6-8 hour, and the present invention is in harmonious proportion one jar of gasoline and only needs 2 hours.

8, antiknock dope of the present invention is the associated resources main additive; It is different from the multiple octane promoter in market and is in harmonious proportion technology; Be raw material-straight-chain paraffin suitable according to the invention, alkene, the intermediate base hydro carbons that adopts, the quality that can effectively improve gasoline improves RON, reduces or the removing superoxide.

Description of drawings:

Fig. 1 is blended gasoline of the present invention and 97# quality of gasoline index contrast table.

Embodiment:

Describe the present invention in detail below in conjunction with accompanying drawing:

Embodiment 1:

Each component is pressed following weight percent: aromatic hydrocarbons 45%, petroleum naphtha 25%, MTBE 8%, antiknock dope 2%, heavy carbon 5 9%, light carbon 5 11%;

Said antiknock dope is pressed following weight percent:

1# raw material: tert.-butylbenzene 8%, methyl ether 42%, dimethyl phosphate 46%, methylnaphthalene 4%;

The 2# raw material: tert.-butylbenzene 16%, TAME 30%, and dimethyl phosphate 50% is to formic acid 4%;

3# raw material: TAME 40%, dimethyl phosphate 45%, to formic acid 11%, methylnaphthalene 4%.

Under room temperature normal pressure situation, its preparation method adopts following process step:

The first step: each raw material that can be used as gasoline mediation integral part that petrochemical plant is not utilized is distinguished incoming stock jar; Carry out feedstock analysis with sampling thief sample thief in head tank; Mainly according to state III; State IV standards checks that the analysis project of raw material mainly contains: total sulfur, RON, boiling range, benzene content, colloid;

Second step: after above-mentioned leading indicator is qualified, raw material is squeezed into Mixer pot, add the antiknock dope of the said proportioning of present embodiment simultaneously by said formula rate;

The 3rd step was mixed in the raw material of several kinds of different components together, carry out physical modulated with, utilize recycle pump, carry out circulating inside, close like the same the stirring repeatedly up and down of laundry washer clothes, accomplished in about 2 hours;

The 4th step: left standstill 8 hours, and carried out assay from the Mixer pot sampling again, after analytical results is qualified, go out to report to sales department by central laboratory, sales department takes the qualified products result can dispatch from the factory;

The preparation method of said antiknock dope: above-mentioned 1# raw material, 2# raw material, 3# raw material by said proportion scale, are evenly added in the canister, stir and be in harmonious proportion 2 hours, left standstill again 8 hours, promptly processed antiknock dope.

Embodiment 2:

Each component is pressed following weight percent: aromatic hydrocarbons 42%, petroleum naphtha 28%, MTBE 7%, additive 3%, heavy carbon 5 10%, light carbon 5 10%;

Said antiknock dope is pressed following weight percent:

1# raw material: tert.-butylbenzene 9%, methyl ether 45%, dimethyl phosphate 40%, methylnaphthalene 6%;

The 2# raw material: tert.-butylbenzene 16%, TAME 38%, and dimethyl phosphate 42% is to formic acid 4%;

3# raw material: TAME 40%, dimethyl phosphate 45%, to formic acid 9%, methylnaphthalene 6%.

Its preparation method is identical with embodiment 1.

Embodiment 3:

Each component is pressed following weight percent: aromatic hydrocarbons 40%; Petroleum naphtha 30%; MTBE 8%; Antiknock dope 2%; Heavy carbon 5 8%; Light carbon 5 12%;

Said antiknock dope is pressed following weight percent:

1# raw material: tert.-butylbenzene 10%, methyl ether 40%, dimethyl phosphate 45%, methylnaphthalene 5%;

The 2# raw material: tert.-butylbenzene 15%, TAME 35%, and dimethyl phosphate 45% is to formic acid 5%;

3# raw material: TAME 45%, dimethyl phosphate 40%, to formic acid 10%, methylnaphthalene 5%.

Its preparation method is identical with embodiment 1.

A kind of abrasive blended gasoline of the present invention and 97# quality of gasoline index are to such as Fig. 1.

Claims (2)

1. abrasive blended gasoline is characterized in that the weight percent of each component is following:

Aromatic hydrocarbons 35-45%; Petroleum naphtha 25-35%; MTBE 6-10%; Antiknock dope 1-3%; Heavy carbon five 6-10%; Light carbon five 10-15%;

Said antiknock dope is made up of the batching of following each agent, and the weight percent of each agent is following:

1# raw material: tert.-butylbenzene 8-12%, methyl ether 35-45%, dimethyl phosphate 40-50%, methylnaphthalene 4-6%;

The 2# raw material: tert.-butylbenzene 12-18%, TAME 30-40%, dimethyl phosphate 40-50% is to formic acid 4-6%;

The 3# raw material: TAME 40-50%, dimethyl phosphate 35-45%, to formic acid 8-12%, methylnaphthalene 4-6%.

2. the preparation method of a kind of abrasive blended gasoline according to claim 1 is characterized in that under room temperature normal pressure situation, adopting following process step:

The first step: each raw material that can be used as gasoline mediation integral part that petrochemical plant is not utilized is distinguished incoming stock jar; Carry out feedstock analysis with sampling thief sample thief in head tank; Mainly according to state III; State IV standards checks that the analysis project of raw material mainly contains: sulphur content, RON, benzene content, colloid;

Second step: after above-mentioned leading indicator is qualified, raw material is squeezed into Mixer pot, add the 1-3% antiknock dope simultaneously by said formula rate;

The 3rd step was mixed in the raw material of several kinds of different components together, carry out physical modulated with, utilize recycle pump, carry out circulating inside, close completion in about 2-3 hour like the same the stirring repeatedly up and down of laundry washer clothes;

The 4th step: left standstill 7-9 hour, and carried out assay from the Mixer pot sampling again, after analytical results is qualified, go out to report to sales department by central laboratory, sales department takes the qualified products result can dispatch from the factory;

The preparation method of said antiknock dope: said 1# raw material, 2# raw material, 3# raw material by said proportion scale, are evenly added in the canister, stir and be in harmonious proportion 2-3 hour, left standstill again 8 hours, promptly processed antiknock dope.

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