Lead-less gasoline and its preparation method

Abstract

The invention relates to a kind of environment-friendly lead-free gasoline which includes the following ingredients: 25-35wt% part of gasoline (or light oil / naphtha), 25-35wt% part of methanol, 5-10wt% of n-butanol, 13-29wt% of avantin, 4-10wt% of absolute alcohol, 1-1.5wt% of acetone, 2-2.5wt% of oil benzene, 8-23wt% of di-isobutyl ether and 0.5-1wt% of nucleus additive. The mentioned additive includes the following ingredients: 20-25wt% of acetone, 10-21wt% of isobutanol, 5-15wt% part of kerosene, 25-40wt% part of dimethyl benzene and 6-14wt% part of the gasoline quieting, anti-oxygen, anti-detonate, and anti-corrosion agent. Adding the mentioned material according to the ratio to the reactor and agitating pots, synthesizing for 15-30 minutes; agitating the material in the static admixer to get the gasoline which has good evaporating ability, anti- detonate ability, safe charactiristic, anti-corrosion ability, compatibility and environment-friendly quality.

Description

technical field [0001] The invention relates to a lead-free gasoline and a preparation method thereof. Background technique [0002] At present, the existing technologies for improving the quality of gasoline in our country are mainly to add methyl tert-butyl ether or organic metal compounds to gasoline, but methyl tert-butyl ether seriously pollutes groundwater and has carcinogenic effects; organometallic compounds, due to the introduction of Metals have a serious wear and tear effect on machinery. With the enhancement of human environmental protection awareness, countries around the world have restricted or canceled the above-mentioned additives. Chinese Patent No. ZL00109209X discloses a composite unleaded gasoline, which is composed of methanol 350kg, gasoline 331kg, naphtha 260kg, isobutanol 19kg, mixed benzene 16kg, methyl tert-butyl ether 23kg, compound additive 1kg, core additive 9g , blended together, although the gasoline has a high octane number, its use is restr...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing technologies for improving the quality of gasoline in our country are mainly to add methyl tert-butyl ether or organic metal compounds to gasoline, but methyl tert-butyl ether seriously pollutes groundwater and has carcinogenic effects; organometallic compounds, due to the introduction of Metals have a serious wear and tear effect on machinery. With the enhancement of human environmental protection awareness, countries around the world have restricted or canceled the above additives

Chinese Patent No. ZL00109209X discloses a composite unleaded gasoline, which is composed of methanol 350kg, gasoline 331kg, naphtha 260kg, isobutanol 19kg, mixed benzene 16kg, methyl tert-butyl ether 23kg, compound additive 1kg, core additive 9g , blended together, although the gasoline has a high octane number, its use is restricted due to the use of methyl tert-butyl ether, and it loses its environmental protection. The main blending component of methanol-synthesized gasoline can effectively reduce gasoline Energy consumption rate, improve thermal efficiency, but because methanol is an oxygen-containing fuel, its theoretical calorific value is less than half of that of gasoline, so the fuel consumption rate of synthetic gasoline is relatively high

Chinese patent 00129446.6 discloses a "high-stability synthetic gasoline" whose weight percentages are 45%-58% of methanol, 28%-35% of carbon five, 0%-5% of ethylene oxide, and 8%-16% of ether. %, acetone 2%-6%, FM-3 antioxidant lubricating oil 1%-1.5%, 202 anti-oxidant and anti-corrosion agent 1.5%-2.5%, ferrocene 0.5-1%, the synthetic gasoline, although it can prevent Gasoline is corrosive, it does not separate when it encounters engine oil, and it is easy to start at low temperature, but there is a problem that the fuel consumption rate increases during operation

Chinese Patent No. 01106602 discloses a kind of "gasoline alcohol" whose composition weight ratio is A component: ① absolute ethanol (or methanol) 94-98kg; ② refined oil 1-5kg; B component: (denaturant) 0.5- 1.5kg, of which the weight ratio of component B is ① refined oil 300-500g; ② toluene 300-500g; ③ NaOH 10-50g; ④ organic manganese 100-200g; Strong, stable combustion, high power, clean exhaust gas, less pollution, but due to the low boiling point of low-carbon alcohol, it is prone to air lock