PROCESS FOR THE PURIFICATION OF AN ETHER, COMPRISING TWO DISTILLATION STEPS

A PROCESS FOR THE SEPARATION OF A MIXTURE OF AN ETHER, AN ALCOHOL AND OF HYDROCARBONS IS DESCRIBED IN WHICH THE MIXTURE TO BE SEPARATED IS INTRODUCED INTO A FIRST DISTILLATION COLUMN FROM WHICH ALMOST ALL OF THEHYDROCARBONS ARE RECOVERED OVERHEAD AND THE PURIFIED ETHER IS RECOVERED FROM THE BOTTOM;...

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Bibliographische Detailangaben
1. Verfasser:	STREICHER, CHRISTIAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC CHEMISTRY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Zusammenfassung:	A PROCESS FOR THE SEPARATION OF A MIXTURE OF AN ETHER, AN ALCOHOL AND OF HYDROCARBONS IS DESCRIBED IN WHICH THE MIXTURE TO BE SEPARATED IS INTRODUCED INTO A FIRST DISTILLATION COLUMN FROM WHICH ALMOST ALL OF THEHYDROCARBONS ARE RECOVERED OVERHEAD AND THE PURIFIED ETHER IS RECOVERED FROM THE BOTTOM; AT LEAST ONE PHASE ISEXTRACTED AS A SIDE STREAM FROM THE FIRST DISTILLATION COLUMN AND SENT TO A SECOND DISTILLATION COLUMN FROMWHICH THE ALCOHOL IS RECOVERED FROM THE BOTTOM AND A MIXTURE OF ALCOHOL, ETHER AND HYDROCARBONS IS RECOVEREDOVERHEAD AND RECYCLED TO THE FIRST DISTILLATION COLUMN. THIS PROCESS IS OF PARTICULAR USE IN SEPARATING MIXTURESOF ETHYL TERTIO-BUTYL ETHER (ETBE), ETHANOL AND C4 HYDROCARBONS. THE PROCESS CAN BE INTEGRATED INTO AN ETHER PRODUCTION PROCESS, IN WHICH THE ALCOHOL SEPARATED BY THE SECOND DISTILLATION COLUMN IS RECYCLED TO THE ETHERIFICATION REACTOR. THE FIRST DISTILLATION COLUMN MAY BE REPLACED BY A CATALYTIC DISTILLATION COLUMN. (FIGURE 1)