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Efficient compound additive of methanol gasoline and preparation method thereof

A compound additive, methanol gasoline technology, used in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of imperfect additive performance, high engine noise, blockage of fuel injection nozzles, etc., to avoid weight instability and use. Safe, corrosion-inhibiting effect

Inactive Publication Date: 2013-01-23
KAILUAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the performance of the additives used in domestic production of methanol gasoline is not perfect, and the produced methanol gasoline is prone to unstable weight and easy stratification, especially its corrosion to the engine and swelling of rubber parts, resulting in blockage of fuel injectors, wear of metal parts, and engine failure. Loud noise etc.

Method used

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  • Efficient compound additive of methanol gasoline and preparation method thereof
  • Efficient compound additive of methanol gasoline and preparation method thereof
  • Efficient compound additive of methanol gasoline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: This high-efficiency composite additive for methanol gasoline is prepared according to the following weight ratio and steps at normal temperature and pressure:

[0023] Weight percentage of raw materials: isopropanol 14%; isooctanol 56%; methyl tert-butyl ether 5%; tetrahydrofuran 5%; xylene: petroleum xylene 10%; metal corrosion inhibitor: N,N' dialkyl Aminomethylene benzotriazole 0.3%; Rubber swelling inhibitor: 2,6-Dimethylmorpholine 0.3%; Detergent and dispersant: Polyethylene glycol alkyl ether 8%; Anti-wear lubricant: Sulfurized olefin cottonseed oil T405 1.2%; antioxidant: 2,6-di-tert-butyl-p-cresol 0.2%. The total mass percentage content of o-xylene, m-xylene and p-xylene in the petroleum xylene is 98%.

[0024] Preparation:

[0025] (1) Add isopropanol, methyl tert-butyl ether, tetrahydrofuran, and xylene to the container containing iso-octanol at one time;

[0026] (2) Add the metal corrosion inhibitor and the rubber swelling inhibitor into th...

Embodiment 2

[0029] Embodiment 2: The weight ratio and preparation method of the high-efficiency composite additive for methanol gasoline are as follows.

[0030] Raw material weight percent: isopropanol 12%; isooctanol 56%; methyl tert-butyl ether 8%; tetrahydrofuran 6%; xylene: coking xylene 8%; metal corrosion inhibitor: dimerized oleic acid 0.4%; Rubber swelling inhibitor: 2,4,6-trichloroisocyanate phenyl 0.2%; detergent and dispersant: polyisobutylene succinimide 7.6%; anti-wear lubricant: vulcanized olefin cottonseed oil T405 1.5%; antioxidant Agent: 0.3% of 2,6-di-tert-butyl-4-methylphenol. The total mass percent content of o-xylene, m-xylene and p-xylene in the coking xylene is 96%.

[0031] The method of preparation and use is the same as in Example 1.

Embodiment 3

[0032] Embodiment 3: The weight ratio and preparation method of the high-efficiency composite additive for methanol gasoline are as follows.

[0033] Weight percentage of raw materials: isopropanol 11%; isooctanol 62%; methyl tert-butyl ether 4%; tetrahydrofuran 7%; xylene: petroleum xylene 7%; metal corrosion inhibitor: benzotriazole 0.2% ;Rubber swelling inhibitor: Dioctyl phthalate 0.3%; Detergent and dispersant: Glycol ether 7%; Anti-wear lubricant: Sulfurized olefin cottonseed oil T405 1.3%; Antioxidant: 2,6-ditert Butyl p-cresol 0.2%. The total mass percentage content of o-xylene, m-xylene and p-xylene in the petroleum xylene is 97%.

[0034] The method of preparation and use is the same as in Example 1.

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Abstract

The invention discloses an efficient compound additive of methanol gasoline. The additive is prepared by mixing the following raw materials by weight percent: 10-15% of isopropanol, 40-70% of isooctanol, 2-10% of methyl tertiary butyl ether, 2-10% of tetrahydrofuran, 5-15% of dimethylbenzene, 0.2-0.5% of metal corrosion inhibitors, 0.1-0.4% of rubber swelling inhibitors, 3-10% of detergent dispersants, 0.5-2% of anti-wear lubricant and 0.05-0.3% of antioxidant. The compound additive has the following beneficial effects that the octane number of the methanol gasoline prepared by adopting the additive is high; the additive can be used for preparing 90#, 93#, 95#, 97# and 98# series of products; containing the metal corrosion inhibitors and the rubber swelling inhibitors, the additive can effectively relieve corrosion of the prepared methanol gasoline to the engines and swelling of rubber parts; with reasonably selected and proportioned raw materials and the detergent dispersants, the additive can effectively avoid unstable weight and easy layering of the methanol gasoline; and the additive has the characteristics of safety in use and convenience in preparation.

Description

technical field [0001] The invention relates to a fuel additive, in particular to a high-efficiency composite additive for methanol gasoline and a preparation method thereof. Background technique [0002] Resources and environment are two prominent and urgent problems facing the development of human society today. my country is short of oil resources. According to statistics, in 2011, crude oil output was 203.646 million tons, a year-on-year increase of 0.3%; refined oil production was 266.97 million tons, a year-on-year increase of 5.6%; gasoline was 81.4096 million tons, a year-on-year increase of 6.1%; kerosene was 18.7969 million tons, a year-on-year increase 10.1%; diesel oil was 166.7598 million tons, a year-on-year increase of 5.4%; crude oil apparent consumption was 454 million tons, a year-on-year increase of 3.3%; foreign dependence reached 56.5%, a record high, and is expected to reach more than 65% by 2015. Therefore, it is becoming more and more important to dev...

Claims

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Application Information

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IPC IPC(8): C10L1/24C10L1/236C10L1/233C10L1/232C10L1/228C10L1/19C10L1/188C10L1/185C10L1/183C10L1/182C10L1/16C10L10/00C10L10/04
Inventor 裴华王亚涛房承宣崔建方郭超王志彦李建华贾伟艺
Owner KAILUAN GRP
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