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The influence of the acid strength of P-modified and of HNO 3 -dealuminated HZSM-5 on the selectivity for the formation of propene was examined in the conversion of 1-butene. Under the appropriate amount of total acid sites, the reaction pathways of dimerization cracking of 1-butene, which involve the mole ratio of propene to ethene (P/E ratio) and conversion of butenes, could be controlled...
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