NMP法和ACN法在丁二烯抽提装置中的应用

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Ethylene Industry ›› 2024, Vol. 36 ›› Issue (2): 25-30.

• INDUSTRIAL TECHNOLOGY • Previous Articles Next Articles

Application of NMP and ACN in Butadiene Extraction Unit

Song Shichao

Ningbo Hengyi Project Management Co., Ltd., Hangzhou, Zhejiang, P.C.311200

Received:2023-05-09 Revised:2024-04-28 Online:2024-06-25 Published:2024-06-26

Abstract

Abstract:

This article introduces two butadiene extraction units constructed by a Chinese company using NMP (N-methyl pyrrolidone) method and ACN (acetonitrile) method respectively. By comparing the two units in terms of process characteristics, product quality requirements, solvent extraction performance, plant economic benefits and investment, it is discovered from the actual operating data of the two units that the butadiene extraction unit using NMP method has the advantages of more reasonable and shorter process flow, lower operation cost and more environmental-friendly NMP solvent.

Key words: butadiene, NMP (N-methyl pyrrolidone) method, ACN (acetonitrile) method, extractive distillation, energy consumption

Song Shichao. Application of NMP and ACN in Butadiene Extraction Unit[J].Ethylene Industry, 2024, 36(2): 25-30.

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Application of NMP and ACN in Butadiene Extraction Unit

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