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In situ 13 C MAS NMR and UV/Vis spectroscopy was applied to study the nature of organic deposits formed under continuous-flow conditions of the methanol-to-olefin (MTO) conversion on the silicoaluminophosphate H-SAPO-34. Simultaneously, the volatile reaction products were analyzed by on-line gas chromatography. At reaction temperatures of 573 and 623K, the occurrence of 13 C MAS NMR...
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