Molecular sieving of n-butenes by microporous silicoaluminophosphates
Abstract
Of all three n-butenes (but-1-ene, cis-but-2-ene and trans-but-2-ene) only the trans-isomer can easily access the pore system of the molecular sieve SAPO-17 resulting in appreciable adsorption and allowing a promising adsorptive separation of stereoisomeric butenes at temperatures of 330–395 K, where catalytic reactions do not occur.