Pentane Reaction over SO42-/ZrO2and SO42/Al2O32ZrO2Catalysts

Abstract

Abstract: The effectof incorporation of ALInto ZrO₂on The crystallization, surface area, sulf ur content, superacidity and catalytic behavior of SO₄^2-/ZrO₂for n-pentane reaction was studied, and The effectof activation temperat ure, reaction temperat ure, Al content and Pt loading on The activity and selectivity of SO₄^2-/ZrO₂was investigated as well.The acid strengths of SO₄^2-/Al2O₃₂ZrO₂catalysts are almost identical with thatof SO₄^2-/ZrO₂catalyst, where as the formerhas more superacidic sites than The latter.Before loading with Pt, SO₄^2-/Al₂O₃₂ZrO₂catalyst isobviously more active and stable than SO₄^2-/ZrO₂for n-pentane conversion reaction.Supporting Pt can improve The isomerization selectivity and stability of The catalysts markedly, but The activi-ties of Pt/SO₄^2-/Al2O₃₂ZrO₂and Pt/SO₄^2-/ZrO₂catalysts for n₂pentane isomerization are almostidentical, demonst rating that The promoting effectof ALIs not evident in The presence of Pt andhydrogen.

Key words: Solid superacid, SO₄^2-/ZrO₂, SO₄^2-/Al₂O₃₂ZrO₂, Platinum, n-Pentane isomeriza-tion

CLC Number:

O643.1

TrendMD:

XIA Yong-De, HUA Wei-Ming, GAO Zi . Pentane Reaction over SO₄^2-/ZrO₂and SO₄²/Al₂O₃₂ZrO₂Catalysts[J]. Chem. J. Chinese Universities, 1999, 20(1): 92.

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Pentane Reaction over SO₄^2-/ZrO₂and SO₄²/Al₂O₃₂ZrO₂Catalysts

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