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Synthetic method and device of ethyl tert butyl ether

A technology of ethyl tertiary butyl ether and a synthesis method, which is applied in the directions of ether preparation, dehydration of hydroxyl-containing compounds to prepare ether, and addition of unsaturated compounds to prepare ether, etc., to achieve the effects of enhanced adaptability, increased conversion rate and convenient source.

Inactive Publication Date: 2013-04-17
SUN YAT SEN UNIV
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Problems solved by technology

Domestic methyl tert-butyl ether has achieved large-scale industrial production, the synthesis technology of methyl tert-amyl ether is in the stage of industrial implementation, and the synthesis technology of ethyl tert-butyl ether is still in the research stage

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  • Synthetic method and device of ethyl tert butyl ether
  • Synthetic method and device of ethyl tert butyl ether
  • Synthetic method and device of ethyl tert butyl ether

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Embodiment Construction

[0023] Such as figure 1 Shown, a kind of synthesis equipment of ethyl tert-butyl ether comprises the first reaction system, the second reaction system, the washing tower and the separation system; the first reaction system comprises the reactor 1 and the first reactive distillation column 2, and the raw material The feed line is connected to the feed port of reactor 1, the outlet of reactor 1 is connected to the feed port of the first reactive distillation tower 2, and the top outlet of the first reactive distillation tower 2 is connected to the lower feed port of the water washing tower 3 , the outlet at the bottom of the tower is connected with the vacuum rectification tower 4 feed ports of the separation system; the second reaction system includes the second reactive distillation tower 5, and the raw material feed line is connected with the second reactive distillation tower 5 feed ports , the second reactive distillation tower 5 feed inlets are also connected to the discha...

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Abstract

The invention discloses a synthetic method and device of ethyl tert butyl ether. The ethyl tert butyl ether is prepared from isobutene, ethanol, tertiary butanol and ethanol in combination; the isobutene and the ethanol react in a first reaction system; the tertiary butanol and the ethanol react in a second reaction system; tertiary butanol generated in the first reaction system enters the second reaction system to be recycled; and isobutene generated in the second reaction system enters the first reaction system to be recycled as a reactant. The concentration of the ethanol is lower than that of enol which is directly added for preparing the ethyl tert butyl ether, so that the material adaptability is improved, and the material cost is reduced; the source of the isobutene is restricted by petroleum, and the amount of the tertiary butanol increases, so that the production of the ethyl tert butyl ether can be ensured, and the adaptability of the devices is enhanced; by-products generated by reaction can be recycled between the systems, so that the conversion ratio of the reactants is enhanced; and the tertiary butanol is a by-product from production of epoxypropane, and thus the reactant is easily available.

Description

technical field [0001] The invention relates to a method and equipment for synthesizing ethyl tert-butyl ether. Background technique [0002] Ethyl tert-butyl ether is a high-octane gasoline blending component with excellent performance. Ethyl tert-butyl ether, ethanol and methyl tert-butyl ether are all high-octane gasoline improvers, also known as "bio-gasoline additives". [0003] With the gradual prohibition of methyl tert-butyl ether, the production technology of ethyl tert-butyl ether has attracted more and more attention. At present, the technology of synthesizing ethyl tert-butyl ether by enol addition is very mature abroad, and methyl tert-butyl ether, methyl tert-amyl ether, and ethyl tert-butyl ether are all industrially produced. Large-scale industrial production of methyl tert-butyl ether has been realized in China, the synthesis technology of methyl tert-amyl ether is in the stage of industrial implementation, and the synthesis technology of ethyl tert-butyl ...

Claims

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Application Information

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IPC IPC(8): C07C43/04C07C41/06C07C41/09
Inventor 易碧红张冰剑李德良陈清林
Owner SUN YAT SEN UNIV
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