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The effect of Fischer–Tropsch derived oxygenates on olefin oligomerisation over a solid phosphoric acid (SPA) catalyst is mainly related to increased catalyst hydration and the conversion of strong pyrophosphoric acid (H 4 P 2 O 7 ) sites to weaker orthophosphoric acid (H 3 PO 4 ) sites. At 180°C, 3.8MPa and WHSV of 1.5h −1 , oxygenate conversion to...
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