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Methanol gasoline additive, preparation method thereof and methanol gasoline containing additive

A technology of methanol gasoline and additives, applied in the field of gasoline additives, which can solve the problems of difficult separation, high cost, and lack of good separation methods, and achieve the effect of increasing combustion value and reducing costs

Inactive Publication Date: 2019-09-17
深圳市前海博扬研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to separate by simple distillation, and the cost of separation by rectification is too high
There is currently no good way to separate

Method used

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  • Methanol gasoline additive, preparation method thereof and methanol gasoline containing additive
  • Methanol gasoline additive, preparation method thereof and methanol gasoline containing additive
  • Methanol gasoline additive, preparation method thereof and methanol gasoline containing additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0052] Add 1000 grams of mixed glycol (ethylene glycol: 1,2-butanediol = 5:1) to a 2000 mL three-necked flask, add A15 resin acid catalyst 5% (by weight of mixed glycol), and the reaction system The temperature was raised to 85° C., and 2 equivalents of isobutene (equivalent to twice the amount of the diol substance) were introduced. Nitrogen was introduced to make the system pressure reach 2MPa. Under these reaction conditions, the reaction was carried out for 8 hours, and after cooling to room temperature, unreacted isobutene was recovered. The glycol ether in the product is recovered by distillation under reduced pressure, and the calculated yield is more than 95% (calculated on the basis of mixed glycol).

Embodiment example 2

[0054] Coal-based ethylene glycol waste (ethylene glycol: 1,2-butanediol = 5.5: 1) 1000 grams, methyl tert-butyl ether 1782 grams, added to a 3000 mL three-necked flask, heated to 70 ° C, added 100 g SO 4 2- / SiO 2 . The reaction was continued at 70°C for 15 hours. After cooling to room temperature, unreacted isobutene was recovered. The catalyst is removed by filtration, methanol and unreacted methyl tert-butyl ether are evaporated under normal pressure, and then the glycol ether in the product is recovered by distillation under reduced pressure, and the yield is more than 85% (calculated as mixed glycol).

Embodiment example 3

[0056] Coal-based ethylene glycol waste (ethylene glycol: 1,2-butanediol = 6: 1) 1000 grams, methyl tert-butyl ether 2376 grams, added to a 3000 mL three-necked flask, heated to 70 ° C, added 50 g SO 3 H-SBA-15. The reaction was continued at 70°C for 15 hours. After cooling to room temperature, unreacted isobutene was recovered. The catalyst is removed by filtration, methanol and unreacted methyl tert-butyl ether are evaporated under normal pressure, and then the glycol ether in the product is recovered by distillation under reduced pressure, and the yield is more than 92% (calculated as mixed glycol).

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Abstract

The invention discloses a methanol gasoline additive and a preparation method thereof, and relates to the technical field of gasoline synthesis. The additive is a glycol ether mixture and can be dissolved with methanol in any ratio. The freezing point is -80 DEG C or lower, so that layering cannot occur even in a low-temperature environment. The glycol ether has a higher combustion value than methanol, and can greatly improve the combustion value of methanol gasoline when being added into the methanol gasoline as a methanol additive. Raw materials in the preparation method are selected to be ethylene glycol and / or 1,2-butanediol for carrying out an ether formation reaction with a tert-butyl donor. The process is simple, production cost is low, and industrial production values are achieved. The methanol gasoline containing the additive has the characteristics that stability is good, the combustion value is high, and the methanol gasoline can be used under an ultralow-temperature condition.

Description

technical field [0001] The invention relates to the technical field of gasoline additives, in particular to a methanol gasoline additive, a preparation method and methanol gasoline containing the additive. Background technique [0002] According to the statistics of the World Petroleum Summit, the world's oil can be exploited commercially for 32 years, so the development of new renewable alternative energy has become the main direction of future energy development. The development and utilization of renewable energy has been raised to an unprecedented height. Coal, agricultural waste, wood, straw, etc. can be synthesized into methanol through gasification, so methanol-to-fuel has been widely used worldwide. In particular, the use of methanol as gasoline has been carried out in many countries. my country also formulated the national standard GB / T23779-2009 "Methanol Gasoline for Vehicles (M85)" as early as 2009. Shanxi, Xinjiang, Liaoning, Sichuan, Zhejiang, Shaanxi, Heilo...

Claims

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Application Information

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IPC IPC(8): C10L1/02C10L1/10C10L1/185
CPCC10L1/02C10L1/10C10L1/1852
Inventor 熊东路莫志文易松杨轩龙绪俭肖增均
Owner 深圳市前海博扬研究院有限公司
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