Esterification steam treatment method based on stripping tower
By contacting the esterified steam after removing ethylene glycol in the stripping tower with the sprayed water countercurrent and stripping it instead of high-temperature water vapor, the problem of high energy consumption in the traditional esterified steam treatment method is solved and energy consumption is achieved Reduce and reduce production costs.
CN119461548APending Publication Date: 2025-02-18重庆万凯新材料科技有限公司
Patent Information
- Application Number
- CN202411949444.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-02-18
AI Technical Summary
Technical Problem
Traditional esterification steam treatment methods require high temperature water vapor to be stripped, resulting in high energy consumption and high production costs.
Method used
By pressurizing and heating the esterified steam after removing ethylene glycol, it is directly transported to the bottom of the stripping tower, and contacting the spray water countercurrently, the high-boiling and low-boiling components in the esterified steam can be achieved. 分离,代替高温水蒸气进行汽提。
Benefits of technology
有效降低了能耗,降低了生产成本,减小了企业生产负担,并利用了酯化蒸汽的热量进行处理。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119461548A_ABST
Abstract
The invention belongs to the technical field of esterification steam treatment, and particularly relates to an esterification steam treatment method based on a stripping tower, which comprises the following steps of: pressurizing and heating ethylene glycol-removed esterification steam, conveying the esterification steam to the bottom of the stripping tower, enabling the esterification steam to be in countercurrent contact with spray water sprayed from the top of the stripping tower, and turning high-boiling-point components in the esterification steam into a liquid phase to obtain a high-boiling-point component; low-boiling-point components in the spraying water are turned into a gas phase, gas-phase components containing acetaldehyde and 2-MD are discharged from the top of the stripping tower, and liquid-phase components are discharged from the bottom of the stripping tower. In the invention, the esterified steam does not need to be cooled and enters the stripping tower instead of high-temperature steam after being pressurized and heated, on one hand, the heat of the esterified steam is utilized to treat the esterified steam, and on the other hand, the high-temperature steam is not prepared for the stripping tower any more, so that the energy consumption is effectively reduced, the production cost is reduced, and the production burden of an enterprise is reduced.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Method for recycling glycol and acetaldehyde in polyester waste water
CN103212424A
Polyester process exhaust organic matter recovery device
CN105126547A
Preprocessing device of PET polyester steam
CN207042172U