CN111454755A

CN111454755A - Production of gasoline for vehicle instead of methyl tert-butyl ether

Info

Publication number: CN111454755A
Application number: CN202010334340.3A
Authority: CN
Inventors: 韩建鹏; 刘科
Original assignee: Qingdao Yongquan Petroleum Co ltd
Current assignee: Qingdao Yongquan Petroleum Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-07-28

Abstract

The invention relates to the technical field of petroleum products, and provides a method for producing motor gasoline by replacing methyl tert-butyl ether. The gasoline provided by the invention comprises the following components in parts by mass: 20-30 parts of alkylated gasoline, 20-25 parts of straight-run gasoline, 20-25 parts of aromatic hydrocarbon, 20-25 parts of C5-C12 olefin, 10-20 parts of naphtha and 1-5 parts of rose detergent synergist; wherein the components of the rose detergent synergist comprise a motor octane number booster, a octane number enhancer and a detergent; the components of the motor octane number enhancer comprise castor bean extract, rose extract, palm extract and rapeseed extract. The invention utilizes the rose cleaning synergist to replace methyl tert-butyl ether to produce the motor gasoline, the motor octane number of the obtained gasoline can reach more than 75, the motor octane number reaches the aviation gasoline standard, the exhaust gas emission is low, the oil saving rate is high, and the environment-friendly performance is good, and the high-toxicity carcinogenic substances such as tetraethyl lead, a manganese agent, methyl tert-butyl ether, methanol and the like are not contained.

Description

Production of gasoline for vehicle instead of methyl tert-butyl ether

Technical Field

The invention relates to the technical field of petroleum products, in particular to a method for producing motor gasoline by replacing methyl tert-butyl ether.

Background

With the development of modern automobile industry, the compression ratio of an automobile engine is continuously increased, gasoline with a low octane number is easy to knock and has great harm under the condition of a high compression ratio, and gasoline with a higher octane number can avoid the generation of knock. The octane number represents the antiknock performance of the gasoline, and according to different determination conditions, the octane number of the gasoline is divided into a motor octane number and a research octane number, wherein the motor octane number is harsh in determination condition and is closer to the antiknock performance of the gasoline during the driving process of the automobile under high-speed and heavy-load conditions, the determination condition of the research octane number is mild, the antiknock performance of the gasoline during the slow driving of the automobile is reflected, and the research octane number of the same gasoline is about 15 units higher than the motor octane number. The motor octane number is used for measurement abroad, the motor octane number of the gasoline is large, the shock resistance is good, the quality is good, and the national gasoline standard is formulated according to the research octane number.

In order to improve the gasoline grade (research octane number), the oil refining enterprises in China usually add methyl tert-butyl ether (MTBE) into gasoline, the research octane number of the gasoline can be improved by 2-3 units by adding 3-7% of the MTBE, and 12-16 tons of the MTBE are required to be added for producing 100 tons of gasoline. Still other manufacturers use Methylcyclopentadienyl Manganese Tricarbonyl (MMT) to reduce production costs. After MTBE and MMT burn, along with automobile exhaust discharges, can produce a large amount of PM2.5, aggravate the formation of haze. Methyl tert-butyl ether is extracted from liquefied petroleum gas, and after the methyl tert-butyl ether is added into gasoline, the phenomena of air lock, detonation, flameout and the like of an engine can be caused, the detonation phenomenon is easy to occur, and the methyl tert-butyl ether is listed as a carcinogenic substance for human abroad.

Disclosure of Invention

The invention aims to provide a method for producing motor gasoline by replacing methyl tert-butyl ether. The rose cleaning synergist is used for replacing methyl tert-butyl ether in the gasoline provided by the invention, the motor octane number of the gasoline is high, the automobile power can be greatly improved, the exhaust emission is reduced, the haze pollution problem can be solved, and the petroleum resource is saved.

In order to achieve the above object, the present invention provides the following technical solutions:

the gasoline for the vehicle is produced by replacing methyl tert-butyl ether, and comprises the following components in parts by mass: 20-30 parts of alkylated gasoline, 20-25 parts of straight-run gasoline, 20-25 parts of aromatic hydrocarbon, 20-25 parts of C5-C12 olefin, 10-20 parts of naphtha and 1-5 parts of rose detergent synergist;

the rose cleaning synergist comprises the following components in parts by weight: 40 parts of motor octane number improver, 10-20 parts of octane number enhancer and 10-20 parts of detergent; the motor octane number enhancer comprises the following components in percentage by mass: 30-40% of castor bean extract, 20-30% of rose extract, 10-20% of palm extract and 20-30% of rapeseed extract.

Preferably, the rose cleaning synergist gasoline comprises the following components in parts by weight: 20-25 parts of alkylated gasoline, 20-25 parts of straight-run gasoline, 20-25 parts of aromatic hydrocarbon, 20-25 parts of C5-C12 olefin, 10-20 parts of naphtha and 1-5 parts of rose detergent synergist.

Preferably, the motor octane number enhancer comprises the following components in percentage by mass: 35-38% of castor bean extract, 23-26% of rose extract, 13-17% of palm extract and 22-26% of rapeseed extract.

Preferably, the preparation method of the castor bean extract, the rose extract, the palm extract and the rapeseed extract comprises the following steps:

distilling castor bean, rose petal, palm fruit or rapeseed, and filtering the distillate to obtain castor bean extract, rose extract, palm extract or rapeseed extract.

The invention provides a preparation method of the gasoline in the scheme, which comprises the following steps:

mixing alkylated gasoline, straight run gasoline, aromatic hydrocarbon, C5-C12 olefin and naphtha to obtain a mixed solution;

and mixing the rose cleaning synergist with the mixed solution under the condition of keeping out of the sun to obtain the product for producing the vehicle gasoline by replacing the methyl tert-butyl ether.

Preferably, the preparation method of the rose detergent synergist comprises the following steps: mixing castor bean extract, rose extract, palm extract and rapeseed extract to obtain motor octane number improver;

mixing the octane-assisting agent and the detergent to obtain a mixture;

and mixing the motor octane number enhancer and the mixture under a light-blocking condition to obtain the rose cleaning synergist.

Has the advantages that:

(1) the invention utilizes the rose cleaning synergist to replace methyl tert-butyl ether to produce the motor gasoline, and the alkylated gasoline, the straight run gasoline, the aromatic hydrocarbon, the C5-C12 olefin, the naphtha and the rose cleaning synergist are matched, and the motor method octane number of the obtained gasoline can reach more than 75, reaches the aviation gasoline standard, and can be used for high-grade cars and racing cars such as sedge, gallop, BMW, Audi and the like;

(2) the rose cleaning synergist added into the gasoline can decompose sediments related to a fuel system into small particles, the small particles are fused in the fuel and finally combusted along with the fuel, so that the aims of cleaning an oil path, fully atomizing and combusting, saving the fuel and improving the emission of tail gas are fulfilled; the detection result shows that the gasoline automobile exhaust detection provided by the invention basically achieves 0 emission, HC (hydrocarbon) is lower than 28.5 times of the national regulation limit value, and CO (carbon monoxide) is lower than 20 times of the national regulation limit value;

(3) the gasoline provided by the invention can fully combine aromatic hydrocarbon and C5-C12 olefin, the combustion is full, the power is promoted quickly, and the oil saving rate is up to 40%; the addition of the methyl tert-butyl ether can not combine aromatic hydrocarbon and C5-C12 olefin together, so that the combustion efficiency is low, 20-30% of oil products are wasted, the oil products are discharged from automobile exhaust without being completely combusted, and the exhaust gas contains toxic carcinogenic substances, so that the exhaust gas emission is very high;

(4) the rose cleaning synergist is used for replacing methyl tert-butyl ether and manganese to produce gasoline, so that the increase of engine sediments is avoided, the service life of an engine can be prolonged by more than 20 kilometers, and a spark plug does not need to be replaced for 10 years;

(5) the gasoline provided by the invention does not contain tetraethyl lead, manganese agent, methyl tert-butyl ether, methanol and other high-toxicity carcinogenic substances; and the induction period of the gasoline can reach 7179min, which is 5.5 times higher than that of aviation gasoline, 15 times higher than that of national six standards and 55 times higher than that of ethanol gasoline, and the quality is very stable.

Detailed Description

The invention provides a method for producing motor gasoline by replacing methyl tert-butyl ether, which comprises the following components in parts by weight: 20-30 parts of alkylated gasoline, 20-25 parts of straight-run gasoline, 20-25 parts of aromatic hydrocarbon, 20-25 parts of C5-C12 olefin, 10-20 parts of naphtha and 1-5 parts of rose detergent synergist.

Unless otherwise specified, the individual feed components of the gasolines of the invention are commercially available.

The gasoline provided by the invention comprises 20-30 parts of alkylated gasoline, preferably 20-25 parts, and further preferably 21-24 parts. The invention has no special requirement on the source of the alkylated gasoline, and the alkylated gasoline which is well known to the technical personnel in the field can be used; the main component of the alkylated gasoline is highly branched isoparaffin, which has higher octane value; the invention utilizes the positive synergistic effect of the alkylated gasoline and other components, and can improve the octane number of the gasoline in a wide range after being mixed.

The gasoline provided by the invention comprises 20-25 parts of straight-run gasoline, preferably 21-23 parts of alkylated gasoline by mass.

The gasoline provided by the invention comprises 20-25 parts of aromatic hydrocarbon, preferably 21-23 parts of aromatic hydrocarbon by mass based on the mass parts of the alkylated gasoline.

The gasoline provided by the invention comprises 20-25 parts of C5-C12 olefin, preferably 21-23 parts by mass based on the mass part of the alkylated gasoline. The gasoline provided by the invention can combine aromatic hydrocarbon and C5-C12 olefin together, and has sufficient combustion and high oil saving rate.

The gasoline provided by the invention comprises 10-20 parts of naphtha, preferably 12-15 parts of alkylated gasoline by mass.

The gasoline provided by the invention comprises 1-5 parts, preferably 2-3 parts of rose detergent synergist based on the mass parts of the alkylated gasoline. In the invention, the rose cleaning synergist comprises the following components in parts by weight: 40 parts of motor octane number improver, 10-20 parts of octane enhancer and 10-20 parts of detergent, wherein the preferable components include 40 parts of motor octane number improver, 13-15 parts of octane number enhancer and 12-16 parts of detergent; the motor octane number enhancer comprises the following components in percentage by mass: 30-40% of castor bean extract, 20-30% of rose extract, 10-20% of palm extract and 20-30% of rapeseed extract; preferably, the castor bean extract product comprises 35-38% of castor bean extract product, 23-26% of rose extract product, 13-17% of palm extract product and 22-26% of rapeseed extract product.

In the present invention, the preparation method of the castor bean extract, the rose extract, the palm extract and the rapeseed extract preferably comprises the steps of:

In the present invention, the distillation temperature is preferably 120 ℃, the time is preferably 6h, and the pressure is preferably 12 MPa; the filtration is diaphragm type filter pressing; the present invention preferably uses a distillation column for distillation.

In the invention, the motor octane number enhancer is composed of plant extracts, can improve the motor octane number of gasoline, and does not contain chemical carcinogens.

By adding the rose cleaning synergist, the invention can effectively improve the quality of gasoline, decompose colloid, carbon deposit and precipitate in a fuel system, reduce the emission of harmful tail gas and reduce the oil consumption, and the oil saving rate reaches 40 percent at most; according to the invention, the rose cleaning synergist is added, so that the precipitate related to the fuel oil system can be decomposed into small particles, and the small particles are fused in the fuel oil and finally burnt along with the fuel oil, thereby achieving the purposes of cleaning an oil path, fully atomizing and burning, saving the fuel oil and improving the emission of tail gas; in addition, most of the components in the rose cleaning synergist used by the invention are plant extracts, so that the cost is low, and the environment pollution is avoided.

In the present invention, the preparation method of the rose detergent builder preferably comprises the following steps:

mixing castor bean extract, rose extract, palm extract and rapeseed extract to obtain motor octane number improver;

mixing the octane-assisting agent and the detergent to obtain a mixture;

The invention has no special requirements on the specific mixing conditions, and can uniformly mix all the components. The rose cleaning synergist is added under the strict dark condition, so that the rose cleaning synergist can be prevented from being decomposed and deteriorated by light and influencing the anti-explosion performance of the product.

The embodiments of the present invention will be described in detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.

Example 1

1) Respectively distilling castor bean, rose petal, palm fruit and rapeseed at high temperature in a distillation tower, and press-filtering to obtain castor bean extract, rose extract, palm extract and rapeseed extract (to obtain four plant extracts); wherein the high-temperature distillation conditions are as follows: the temperature is 120 ℃, the pressure is 12MPa, and the time is 6 h.

Mixing the obtained plant extracts according to the following mass percentage to obtain the motor octane number improver, wherein: 40% of castor bean extract, 20% of rose extract, 20% of palm extract and 20% of rapeseed extract.

2) Uniformly mixing 40 kg of a octane-enhancing agent and 30 kg of a detergent to obtain a mixed solution;

3) and (3) adding 40 kg of motor octane number improver into the mixed liquid obtained in the step 2) under the strict dark condition, and then uniformly stirring to obtain the rose cleaning synergist.

Example 2

The gasoline for producing the vehicle instead of the methyl tert-butyl ether comprises the following components: 25 parts of alkylated gasoline, 25 parts of straight run gasoline, 20 parts of aromatic hydrocarbon, 20 parts of C5-C12 olefin, 10 parts of naphtha and 1 part of rose cleaning synergist prepared in example 1;

the preparation method comprises the following steps: evenly mixing the alkylated gasoline, the straight run gasoline, the aromatic hydrocarbon, the C5-C12 olefin and the naphtha in sequence; adding the rose cleaning synergist into the mixed solution according to the proportion under the strict light-proof condition, and then uniformly mixing.

Example 3

The gasoline for producing the vehicle instead of the methyl tert-butyl ether comprises the following components: 50 parts of alkylated gasoline, 25 parts of straight-run gasoline, 10 parts of aromatic hydrocarbon, 10 parts of C5-C12 olefin, 4 parts of naphtha and 5 parts of rose cleaning synergist prepared in example 1; the preparation method is consistent with example 2.

Performance detection

(1) And (3) basic property detection:

the basic properties of the gasoline prepared in example 2 were measured in Shandong entry and exit inspection and quarantine bureau inspection and quarantine technology center, and the results are shown in Table 1:

TABLE 1 detection results of performance of rose detergent synergist gasoline prepared in example 2

The gasoline prepared in example 3 was subjected to property testing, which was performed by the inspection and quarantine technology center of Shandong entry-exit inspection and quarantine bureau, and the testing results are shown in Table 2:

table 2 results of performance tests on gasoline prepared in example 3

The MTBE content of the national standard No. 92 gasoline is detected, a sampling point is a medium petrochemical No. 612 gas station, a detection unit is Shandong entry and exit inspection and quarantine bureau inspection and quarantine technical center, and the detection result is shown in Table 3:

table 3 detection results of MTBE content of national standard 92# gasoline

Name of item	The result of the detection	Result Unit	Detection method
				MTBE content	9.14	(mass fraction)/%	NB/SH/T0663-2014

The MTBE content and other basic properties of 95# gasoline from Dongying Chenghu chemical Co., Ltd were measured, and the results are shown in Table 4:

TABLE 4 property test results of 95# gasoline from Dongying Qinzui chemical Co., Ltd

According to the detection results in tables 1-4, the induction period of the gasoline prepared by the method reaches 7179min, is 5.5 times longer than that of aviation gasoline, 15 times longer than that of national six standards and 55 times longer than that of ethanol gasoline, so that the quality is very stable, and the detection results show that the content of high-property carcinogenic substances such as MTBE, manganese, tetraethyl lead, methanol and the like in the gasoline prepared by the method is less than 0.2 and practically completely free; the MTBE content in the medium petrochemical 92# gasoline is 9.14 percent, namely 100 tons of gasoline contains 9.14 tons of MTBE; compared with the Dongying Qinhui chemical company Limited 95# gasoline with the MTBE content of 14 percent, namely 100 tons of gasoline containing 14 tons of MTBE, the gasoline prepared by the method has stable quality and is more environment-friendly, and all indexes are superior to national standard requirements.

(2) Exhaust gas pollutant testing

For the dual-idle method of detecting the exhaust pollutants of the gasoline prepared in example 2 by using a spark ignition engine automobile, wherein the automobile for detection is rugv 552H, the automobile brand is meissi-benz FA6521, the automobile brand is a small ordinary passenger car, the engine displacement is 2.5L, the engine model is 272924, the number of odometers is 23658, the detection station is juntai motor vehicle detection limited company, the detection standard is GB/T18285-2005 spark ignition engine automobile exhaust pollutant emission limit value and the measurement method (dual-idle method and simple operating mode method), the detection results are shown in table 5:

TABLE 5 exhaust pollution test results for rose detergent booster gasoline prepared in example 2

From the data in table 5 it can be seen that with the gasoline according to the invention the HC (hydrocarbon) content in the exhaust gas is only 7, below 28.5 times the national regulation limit, reduced by 193 units and CO (carbon monoxide) below 20 times the national regulation limit.

The method is characterized in that exhaust pollutants of national standard No. 92 fuel are detected, the brand of a vehicle for detection is Laveney brand SVW7167BSD, the license number is Lu BRC628, the vehicle is a small car, the engine displacement is 1.6L, the engine model is CDE, the number of odometers is 81259, a detection station is Qingdao Juntai motor vehicle detection Limited company, the detection standard is GB/T18285-2005 ignition engine automobile exhaust pollutant emission limit value and a measurement method (a double-idling method and a simple working condition method, and the detection results are shown in Table 6:

TABLE 6 test results of exhaust pollutants for national standard No. 92 fuel oil

Comparing tables 5 and 6, it can be seen that the content of hydrocarbons in the exhaust pollutant of the national standard No. 92 gasoline is lower than the national regulation limit of 1.82, the content of carbon monoxide is higher than that of the gasoline of the present invention by 19 times compared with that of the gasoline of the present invention by 187.3 units.

(3) Oil consumption test:

the test is carried out by using a vehicle with the displacement of 1.6 Bekker, the gasoline consumption per kilometer is 13.67 liters when the gasoline with the displacement of 92 Bekker is added, the gasoline consumption per kilometer is reduced to 8.27 liters when the gasoline prepared in the embodiment 2 is added, the oil consumption per kilometer is saved by 39.5 percent, more than 3500 yuan of RMB is saved per ten thousand kilometers, and the cost for overhauling the engine is saved by 5000 yuan.

The embodiment shows that the motor octane number of the gasoline produced by the rose cleaning synergist can reach the aviation gasoline standard, the exhaust emission is low, the oil saving rate is high, the haze pollution problem can be solved, the petroleum resources are saved, and the rose cleaning synergist does not contain high-toxicity carcinogens such as tetraethyl lead, manganese, methyl tert-butyl ether, methanol and the like, and is good in environmental protection property.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The method for producing the motor gasoline by replacing methyl tert-butyl ether is characterized in that the gasoline comprises the following components in parts by mass: 20-30 parts of alkylated gasoline, 20-25 parts of straight-run gasoline, 20-25 parts of aromatic hydrocarbon, 20-25 parts of C5-C12 olefin, 10-20 parts of naphtha and 1-5 parts of rose detergent synergist;

2. The gasoline of claim 1, wherein the rose detergency builder gasoline comprises the following components in parts by mass: 20-25 parts of alkylated gasoline, 20-25 parts of straight-run gasoline, 20-25 parts of aromatic hydrocarbon, 20-25 parts of C5-C12 olefin, 10-20 parts of naphtha and 1-5 parts of rose detergent synergist.

3. The gasoline of claim 1 or 2, wherein the motor octane booster comprises the following components in percentage by mass: 35-38% of castor bean extract, 23-26% of rose extract, 13-17% of palm extract and 22-26% of rapeseed extract.

4. The gasoline of claim 3, wherein the castor bean extract, the rose extract, the palm extract and the rapeseed extract are prepared by a method comprising the steps of:

5. The method for preparing gasoline according to any one of claims 1 to 4, characterized by comprising the steps of:

6. The method of claim 5, wherein the rose detergency builder is prepared by a method comprising the steps of: mixing castor bean extract, rose extract, palm extract and rapeseed extract to obtain motor octane number improver;

mixing the octane-assisting agent and the detergent to obtain a mixture;