FIELD: chemistry.
SUBSTANCE: invention relates to a method of treating an alcohol composition comprising nitrogen-containing contaminants by reacting an alcohol composition in the vapour phase with an adsorbent in an adsorption zone and also to a method of producing olefins comprising reacting an alcohol composition comprising nitrogen-containing contaminants in the vapour phase with an adsorbent in an adsorption zone with producing a treated alcohol composition and reacting the treated alcohol composition with an alcohol dehydration catalyst in an alcohol dehydration zone under conditions effective for the dehydration of alcohol. In addition, the present invention relates to the use of aluminium silicate, aluminosilicate, or zeolite to remove nitrogen-containing contaminants from the alcohol composition.
EFFECT: reducing the amount of nitrogen-containing contaminants, thereby ensuring the operability and necessary life of the catalyst for subsequent processing of the alcohol composition.
23 cl, 12 dwg, 1 tbl, 5 ex
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