SEPARATION AND ANALYSIS OF ALKYLPHENOL COMPOUND IN CRUDE OIL

The alkyphenol compound in crude oil was separated by the silica gel alumina and silicic co-lumn and silanized with BSTFA,and then was analyzed with GC-MS.Three ways of separation were compared in this study,and the conditions of silanization were tested.It was concluded that alkylphenol compound could be enriched with silica gel alumina column,and the loss of phenol and cresol could be reduced because of the polarity of silicic acid,so that the influence of other polar component in nonhydrocarbon would be reduced.The content of alkylphenol had something to do with the water washing and oxidation action,the more water washing and oxidation action,the more loss of the content of alkyl-phenol.The max relative deviation in this method was less than 15%,and the recovery rate of the standard sample reached 89.60%.