A vapor drag reducing agent for methanol gasoline

A technology of methanol gasoline and degassing, which is applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problem that RVP cannot be reduced, and achieve the effects of inhibiting ordinary rubber swelling and metal corrosion, increasing power, and improving gasoline combustion Effect

Active Publication Date: 2016-05-04
CRPC INNOVATION ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the saturated vapor pressure experiment of component oils shows that the Reid vapor pressure (RVP) of blended gasoline is restricted by the blending components of cracked gasoline. After adding methanol, due to the azeotropic effect, the RVP rises by 10-15KPa, although in methanol Adding a small amount of C5-C9 alcohol-ether mixtures, or adding surfactants to suppress the specific evaporation rate and Reid vapor pressure can only reduce 5-7KPa, and the RVP still cannot be reduced to the ideal level.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Get 82kg of polymethoxy formal, 3kg of secondary octanol, 3kg of isobutanol, 4kg of methyl tert-butyl ether, 6kg of dimethyl ethylene diketone, 1kg of metal corrosion inhibitor (by triazindene 0.25kg , 0.25kg of 2-mercaptobenzothiazole, 0.25kg of alkenyl succinate, and 0.25kg of allyl acetate), and 1kg of medium-alkaline petroleum calcium sulfonate was added to the reaction kettle in turn, and stirred evenly to obtain methanol gasoline Air blocking agent.

[0024] Add 3% of the vapor drag reducing agent of this example to M15 methanol gasoline with a saturated vapor pressure of 81Kpa. The prepared methanol gasoline meets the requirements of the national standard. The measured saturated vapor pressure is 70Kpa. Other performance parameters: initial boiling point 45°C , Distill 5-10% of the distillation temperature is 54 ° C, 50% distillation temperature is 99 ° C, 90% distillation temperature is 153 ° C, the final boiling point is 165 ° C, and the research octane number ...

Embodiment 2

[0026] Take 84kg of polymethoxy formal, 1kg each of sec-octanol, isobutanol, isopropanol and n-amyl alcohol, 2kg of diisopropyl ether, 2kg of diphenyl ether, 5kg of trimethylcyclohexanone, 2-mercaptobenzene Dithiazole 0.3kg, alkenyl succinate 0.3kg, allyl acetate 0.4kg, medium alkali value calcium sulfonate 0.6kg, sodium petroleum sulfonate 0.7kg, high alkali value sulfurized calcium alkylphenate 0.7kg Add them into the reaction kettle in turn, and stir evenly to obtain the methanol gasoline air drag reducing agent.

[0027] Add 5% of the vapor drag reducing agent of this example to M15 methanol gasoline with a saturated vapor pressure of 80Kpa. The prepared methanol gasoline meets the requirements of the national standard. The measured saturated vapor pressure is 69Kpa. Other performance parameters: initial boiling point 44°C , Distill 5-10% of the distillation temperature is 53 ° C, 50% distillation temperature is 100 ° C, 90% distillation temperature is 156 ° C, the final b...

Embodiment 3

[0029] Take 86kg of polymethoxymethylal, 2kg of isobutanol, 1kg of isopropanol, 1kg of sec-octanol, 1kg of n-pentanol, 3kg of diphenyl ether, 2kg of trimethylcyclohexanone, 0.3 kg of 2-mercaptobenzothiazole kg, 0.3 kg of alkenyl succinate, 0.4 kg of allyl acetate, 1 kg of sodium petroleum sulfonate, and 1 kg of medium-alkaline calcium petroleum sulfonate were added to the reaction kettle in sequence, and stirred evenly to obtain a methanol gasoline vapor drag agent.

[0030] Add 8% of the vapor drag reducing agent of this example to the M15 methanol gasoline with a saturated vapor pressure of 82Kpa. The prepared methanol gasoline meets the requirements of the national standard. The measured saturated vapor pressure is 68Kpa. Other performance parameters: initial boiling point 44°C , 5-10% of the product is distilled at 56°C, 50% at 98°C, 90% at 155°C, end point at 167°C, research octane number (RON) 96. Bench tests show that the power of methanol gasoline is improved, and the ...

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Abstract

The invention discloses a methanol gasoline air-lock inhibitor, formed by mixing the following components in percentage by weight: 80-90% of polymethoxy acetal, 3-6% of aliphatic alcohol, 2-5 parts of aliphatic ether, 2-6 parts of aliphatic ketone, 1-2% of metallic corrosion inhibitor and 1-2% of rubber swelling inhibitor. After the methanol gasoline air-lock inhibitor provided by the invention is added into methanol gasoline, through the way that the methanol gasoline air-lock inhibitor reacts with methanol to form hydrogen bond, so that the initial boiling point of the methanol gasoline and the distilled temperature for distilling 5-10% distillate of the methanol gasoline are raised, thus playing a role in reducing saturated vapor pressure of the methanol gasoline and solving air-lock of the methanol gasoline.

Description

technical field [0001] The invention relates to an additive for methanol gasoline, in particular to an additive capable of reducing the saturated vapor pressure of methanol gasoline. Background technique [0002] Energy depletion and environmental pollution are serious problems facing the world. With the rapid growth of the number of automobiles, the contradiction between the supply and demand of petroleum-based fuels has become increasingly prominent worldwide. The total amount of petroleum consumed by automobile engines is huge, and exhaust emissions have become one of the main sources of air pollution today. Considering resources, environment, economy, etc., the research and development of clean alternative fuels and the rational use of resources have become increasingly prominent practical issues. [0003] Methanol fuel is rich in sources, which can reduce vehicle operating costs and save a lot of oil resources. Therefore, it has practical and economic significance to u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/10C10L1/185C10L1/182C10L1/233C10L1/222C10L1/24
Inventor 任君李春江舒梦阳郭芬李京生
Owner CRPC INNOVATION ENERGY
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