System for preparing ethylene glycol from ethane via epoxyethane
A technology for hydration of ethylene oxide and ethylene oxide, applied in hydrolysis preparation, organic chemistry, etc., can solve problems such as increased dehydration load of dehydration tower, increased load of evaporation system, coking of dehydration tower reboiler, etc. The effect of coking speed, wall thickness reduction and process simplification
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[0076] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The scope of the present invention is not limited by the specific embodiments, and the scope of the present invention is set forth in the claims.
[0077] As shown in Figure 1, a system for preparing ethylene glycol from ethylene through ethylene oxide provided by the present invention includes an ethylene oxide reaction system, an ethylene oxide hydration reaction system, and an ethylene glycol separation and purification system. The ethylene glycol separation and purification system includes an evaporation system, a vacuum dehydration system and a subsequent purification system.
[0078] As shown in Figure 2, the ethylene oxide reactor in the preparation ethylene glycol system of the present invention comprises reactor housing 1, reaction gas inlet 2, reaction gas outlet 3, liquid inlet 4, liquid outlet 5, and set The reaction tube 6 inside...
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