CN104087352A - Coal-based methanol gasoline for M25 car - Google Patents

Abstract

The invention provides coal-based methanol gasoline for a car. The coal-based methanol gasoline consists of the following components in percentage by mass: 20% of coal-based methanol, 79.94% of gasoline-based basic component oil, 0.01% of metal deactivator, 0.05% of antioxidant, wherein the gasoline-based basic component oil consists of the following components in percentage by weight: 10-18% of hydrogenation light component oil, 10-15% of pentane-removed oil, 20-30% of C7 or C9, 0-9% of C5, 9-14% of raffinate oil, 3-14% of MTBE, 4% of isoamyl alcohol, 1% of octyl alcohol and 0.3% of dioctyl sebacate. The car methanol gasoline disclosed by the invention effectively solves and inhibits a problem that the methanol gasoline for the M25 car is difficult to start at low-temperature, great in high temperature gas resistance, insufficient in power, corrosive and swelling; except methanol content index, other indexes of the blended finished product oil satisfy standards of national GB18351-2013 Car Methanol Gasoline, and parts of the indexes are superior to those of associated local standards.

Description

The automobile-used coal-based methanol gasoline of a kind of M25

Technical field

The present invention relates to a kind of oil fuel, be specifically related to a kind of Vehicular methanol petrol.

Background technology

China's oil resource scarcity, the substitution studies of non-fossil energy, has become the key subjects that people pay close attention to.China is coal production big country, and the comprehensive utilization of coal-based methanol is the important branch of Chemical Industry chain, and developing methyl alcohol resource is effective important measures as the substitute of transport fuel.Methyl alcohol is one of derived product of coal high-efficiency trans-utilization, is added in gasoline and can be prepared into methanol gasoline with certain proportion.

Methanol gasoline is except having higher economic benefit, the source of pollution of PM 2.5 are also effectively controlled, in its waste gas, objectionable impurities declines to a great extent, octane value improves, olefin(e) centent reduces, static resistance is good, the exploitation of methanol gasoline can also reduce the dependence of petroleum import and can make full use of national coal resources, therefore methanol gasoline is a kind of clean energy that meets China's actual conditions that has very much development potentiality, has important society and environmental value.

The patent CN201310725485 " containing the preparation method of the environment protection gasoline of methyl alcohol " of Xinghuo Sci. & Tech. Research Inst., Jinan Dev. Zone, relate to a kind of preparation method of the environment protection gasoline containing methyl alcohol, nanometer profit combustion additive, solubility promoter, denatured methyl alcohol, environment-friendly methanol gasoline fuel are prepared, added ferrocene simultaneously, greatly increased the thermo-efficiency of fuel, but interpolation ferrocene can cause the harm of metal ion.The patent CN201410019842 " a kind of M40～M85 Vehicular methanol petrol and compound method thereof " of Wang Zuofa, relate to a kind of M40～M85 Vehicular methanol petrol that comprises basic raw material and additive and preparation method thereof, need to reequip the engine of automobile but add a high proportion of methyl alcohol in gasoline.

Summary of the invention

The object of invention is: it is the Vehicular methanol petrol that component is in harmonious proportion that a kind of coal-based methanol and basic components oil mixt of utilizing is provided, effectively solved and controlled M25 Vehicular methanol petrol cold-starting difficulty, low temperature resisting phase separation, meet the lubricity problem that water resisting phase separation, high temperature vapour lock are large, be short of power, corrode swelling problem and alcohol blended fuel.

In order to achieve the above object, the technical solution used in the present invention is:

A kind of Vehicular methanol petrol is provided, and by mass percentage, it is composed of the following components: coal-based methanol 20%, gasoline basic components oil 79.94%, metal passivator 0.01%, oxidation inhibitor 0.05%;

Described gasoline basic components oil, by weight percentage, composed of the following components: light constituent oil 10～18%, de-pentane oil 10～15%, C7 or C920～30%, C50～9% of hydrogenation class, raffinate oil 9～14%, MTBE3～14%, primary isoamyl alcohol 4%, octanol 1%, dioctyl sebacate 0.3%.

In the preferred Vehicular methanol petrol of the present invention, the preferred T1201 of described metal passivator; The preferred T502A of described oxidation inhibitor.

Methanol gasoline of the present invention can be made by simple mixing of the component of described ratio.

Vehicular methanol petrol of the present invention obtains as component is in harmonious proportion taking coal-based methanol and basic components oil mixt, by industrial coal-based methanol density p ₂₀≈ 0.796 calculates, and the methyl alcohol volume of 20% (m/m) adding in the present invention accounts for 25% of oil fuel cumulative volume, and therefore Vehicular methanol petrol of the present invention belongs to M25 methanol gasoline.But compared with existing automobile-used M25 methanol gasoline, the present invention has following many-sided advantage:

(1) conformance with standard:

The M25 Vehicular methanol petrol that the present invention produces, is determined as organic ashless generic attribute by its compatibility constitutive property.Containing metal organic salt composition not in compatibility component, can not produce the poisoning of catalyst problem in the three-way catalytic apparatus of the settling such as carbon deposit and abrasive particle problem and exhaust system in engine long-play body.Solved the lubricity problem of alcohol blended fuel, entirety improves oil product inner quality.Processed oil after mediation is except methanol content index, other index all meets country " vehicle-use alcohol gasoline (E10) " standard, and relevant provincial standard is as the DB23/T988-2005 of: Heilongjiang Province " M15 Vehicular methanol petrol (containing purification agent) ", the DB61/T353-2004 " automobile-used M25 methanol gasoline " in Shaanxi, the DB33/T756.2-2009 " Vehicular methanol petrol part 2: M30 " in Zhejiang.Part index number is better than provincial standard, meets China in this field long-term sustainable strategic planning of development.

(2) versatility is good:

Vehicular methanol petrol of the present invention uses not changing under engine structure and Parameter Conditions directly, and cold-starting is normal, idling, suddenly accelerate normally, and the power that can meet engine requires and steady running.

(3) accumulating, interchangeability are good:

Vehicular methanol petrol of the present invention can be mixed with arbitrary proportion with ethanol petrol with existing commercial white gasoline, exchange, and need not clean oil supply system.

Vehicular methanol petrol good stability of the present invention, moisture content do not exceed standard or normal temperature range in, can stablize and keep more than six months, meeting and storing, transport, sell and use each link required time.

(4) abrasive:

The burning of Vehicular methanol petrol of the present invention belongs to oxygen-enriched combusting, can effectively reduce the NO in vehicle exhaust _x, NO, CO, HC, SO _xdeng the ozone emissions of compound formation, can make PM particulate emission reduce 55%～80% simultaneously, exhaust emissions index reaches the Europe IV standard.

Embodiment

Below embodiments of the invention are described in further detail.

The methanol gasoline of each embodiment is according to the component compatibility preparation of table 1, and preparation method is component and simply mixes.

The embodiment of table 1. Vehicular methanol petrol of the present invention

Effect detection:

Vehicular methanol petrol taking the embodiment of the present invention 1 carries out Performance Detection as example, the results are shown in following table 2:

M25 Vehicular methanol (coal-based) the gasoline examining report of table 2. embodiment 1

Claims (3)

1. a Vehicular methanol petrol, by mass percentage, it is composed of the following components: coal-based methanol 20%, gasoline basic components oil 79.94%, metal passivator 0.01%, oxidation inhibitor 0.05%;

Described gasoline basic components oil, by weight percentage, composed of the following components: light constituent oil 10～18%, de-pentane oil 10～15%, C7 or C920～30%, C50～9% of hydrogenation class, raffinate oil 9～14%, MTBE3～14%, primary isoamyl alcohol 4%, octanol 1%, dioctyl sebacate 0.3%.

2. Vehicular methanol petrol claimed in claim 1, is characterized in that: described metal passivator is T1201.

3. Vehicular methanol petrol claimed in claim 1, is characterized in that: described oxidation inhibitor is T502A.