A glycol synthesis purge gas recovery system
By installing a purge gas treatment pipeline and a PSA module in the hydrogenation section of the ethylene glycol synthesis process, and using an activated alumina adsorption tower to remove impurities such as methanol, the problems of hydrogen waste and adsorbent poisoning were solved, and hydrogen recovery and adsorbent life were achieved.
CN224534066UActive Publication Date: 2026-07-21INNER MONGOLIA CONNELL CHEM IND CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA CONNELL CHEM IND CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
In the ethylene glycol production process, hydrogen resources in the purge gas are wasted in large quantities, and impurities such as methanol can easily cause adsorbent poisoning, reducing equipment lifespan.
Method used
A purge gas treatment pipeline is installed in the hydrogenation section of the ethylene glycol synthesis process. Hydrogen is recovered using a pretreatment module and a PSA module, and impurity methanol is removed by an activated alumina adsorption tower, thus extending the adsorbent life.
Benefits of technology
It effectively recovers and reuses hydrogen, removes impurities such as methanol, extends the service life of the adsorbent, avoids poisoning, and improves equipment efficiency.
✦ Generated by Eureka AI based on patent content.
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Figure CN224534066U_ABST
Abstract
The utility model discloses a kind of ethylene glycol synthesis purge gas recovery systems, applied to the hydrogenation section of ethylene glycol synthesis process, purge gas pipeline is provided on the hydrogenation section, the purge gas pipeline is connected with pretreatment module, the gas pipeline of pretreatment module is connected with PSA module, the excess gas pipeline of PSA module is connected with gasification hot blast stove, the product gas pipeline of PSA module is connected with hydrogenation section;The beneficial effects of the utility model: the utility model is based on traditional ethylene glycol hydrogenation section, increase purge gas treatment pipeline, hydrogen can be effectively recycled and reused, methanol impurity in purge gas is removed by using ethylene glycol freezing, prolong the service life of adsorbent, avoid methanol impurity to cause adsorbent poisoning, worthy of popularization and application.
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