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Low-carbon methanol diesel oil and preparation method thereof

A diesel and methanol technology, applied in the petroleum industry, liquid carbon-containing fuel, air quality improvement and other directions, can solve the problems of incomplete combustion of diesel, increased modulation cost, poor low temperature fluidity, etc., to reduce carbon deposits and sediments, ignition The effect of good startability and strong low temperature fluidity

Pending Publication Date: 2021-11-12
GUIZHOU LONGHE ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, diesel oil is widely used as a fuel in passenger cars, trucks, large excavators, loading machinery, boilers and other fields. With the continuous increase of oil consumption, crude oil resources have been overexploited, and oil resources are becoming less and less , all countries in the world will face the problem of energy shortage and shortage, which will make the price of oil continue to rise, and the existing diesel oil cannot be completely combusted, with many pollutant emissions and high sulfur content. In order to ensure the low-carbon combustion emissions of diesel oil to obtain low-carbon diesel fuel, blending methanol with diesel oil is one of the effective means. Currently, methanol is prepared by blending methanol in the market There are many ways to use diesel oil, but they usually have a high cost. Moreover, when the methanol-diesel blending ratio exceeds 5-10% of the diesel weight, there will be alcohol-oil stratification and poor start-up in cold weather, resulting in Modulation cost increases greatly when modulating methanol diesel in cold weather, for this reason, we propose a low-carbon methanol diesel and its preparation method

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0017] A kind of low-carbon methanol diesel, the raw material of methanol diesel preparation is: 15 parts of vegetable oleic acid, 20 parts of methanol, 10 parts of cetane number improver, 4 parts of isobutanol, 3 parts of n-butanol, 3 parts of catalytic additives and 45 parts of base diesel.

[0018] The concrete steps of methanol diesel oil preparation method are:

[0019] S1: under the condition of normal temperature and normal pressure, weigh diesel oil according to the weight part and add it into the reaction kettle, then add methanol and vegetable oleic acid in appropriate weight part and stir to obtain the mixture;

[0020] S2: Weigh n-butanol and isobutanol in parts by weight, add them to the mixture obtained in the S1 step, mix and then heat the reaction kettle to 80 degrees, while stirring, the stirring time is 40 minutes, which is convenient for the materials to fully dissolve, Then lower it to room temperature to obtain modified methanol diesel, and then add an ap...

Embodiment 2

[0026] A kind of low-carbon methanol diesel, the raw material of methanol diesel preparation is: 20 parts of vegetable oleic acid, 30 parts of methanol, 15 parts of cetane number improver, 5 parts of isobutanol, 5 parts of n-butanol, 4 parts of catalytic additives and 55 parts of base diesel.

[0027] The concrete steps of methanol diesel oil preparation method are:

[0028] S1: under the condition of normal temperature and normal pressure, weigh diesel oil according to the weight part and add it into the reaction kettle, then add methanol and vegetable oleic acid in appropriate weight part and stir to obtain the mixture;

[0029] S2: Weigh n-butanol and isobutanol in parts by weight, add them to the mixture obtained in the step S1, mix and then heat the reactor to 80 degrees while stirring. The stirring time is 50 minutes, which is convenient for the materials to fully dissolve. Then lower it to room temperature to obtain modified methanol diesel, and then add an appropriate...

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Abstract

The invention discloses low-carbon methanol diesel oil and a preparation method thereof. The low-carbon methanol diesel oil is prepared from vegetable oleic acid, methanol, a cetane number improver, isobutanol, n-butanol, a catalytic additive and base diesel oil, a traditional methanol diesel oil preparation method is changed, and substances added into the diesel oil can be better dissolved and combined. The problems that existing diesel oil is large in viscosity, prone to freezing, poor in fluidity and difficult to start at the low temperature at the low temperature are solved, the low-temperature fluidity is high, meanwhile, the combustion performance is not reduced, the content of CO and hydrocarbon in tail gas emission when a vehicle combusts the diesel oil is remarkably reduced, black smoke in the tail gas emission is eliminated, pollution to the atmosphere is greatly reduced, the effects of low carbon and environment friendliness are achieved, methanol diesel oil is easy to store for a long time, ignition startability is good, lubricity can be improved, and rod end abrasion and boundary abrasion of an air inlet valve and an air outlet valve of a piston ring of an engine are reduced.

Description

technical field [0001] The invention relates to the technical field of low-carbon methanol diesel, in particular to a low-carbon methanol diesel and a preparation method thereof. Background technique [0002] At present, diesel oil is widely used as a fuel in passenger cars, trucks, large excavators, loading machinery, boilers and other fields. With the continuous increase of oil consumption, crude oil resources have been overexploited, and oil resources are becoming less and less , all countries in the world will face the problem of energy shortage and shortage, which will make the price of oil continue to rise, and the existing diesel oil cannot be completely combusted, with many pollutant emissions and high sulfur content. In order to ensure the low-carbon combustion emissions of diesel oil to obtain low-carbon diesel fuel, blending methanol with diesel oil is one of the effective means. Currently, methanol is prepared by blending methanol in the market There are many wa...

Claims

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Application Information

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IPC IPC(8): C10L1/02
CPCC10L1/02Y02A50/20
Inventor 黄芋森
Owner GUIZHOU LONGHE ENERGY
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