Gallium-promoted mesoporous sulfated zirconia: A catalyst for n-butane isomerization

Chung Yuan Mou, Shu Yu Lin, Xio Rong Chen

研究成果: 書貢獻/報告類型會議貢獻

摘要

Mesoporous sulfated zirconia (m-ZrO2) were synthesized hydrothermally using Zr(O-nPr)4 as Zirconium precursor, ammonium sulfate as sulfur source and CTABr as template. Then the as-synthesized mesoporous zirconia were impregnated with gallium nitrate to give the Ga-promoted mesoporous sulfated zirconia.(m-GSZ). The catalysts were characterized by nitrogen physisorption(BET) for texture properties; x-ray diffraction and TEM for structures. The catalytic conversion of n-butane isomerization was measured in a flow reactor. With the addition of a proper amount of Ga as a promoter, the catalytic activity of for n-butane isomerization at a very low temperature of 200 °C in flow system was strongly promoted, giving near-equilibrium production of iso-butane. The remarkable increase of activities was determined primarily by the amount of Ga addition and the temperature of calcination. The nature of the promotion was determined by EPR for the oxidative de-hydrogenation activity of Ga2O3. Finally, we compare the activity of Ga-promoted SZ catalyst with the Al-promoted catalyst.

原文英語
主出版物標題American Chemical Society - 235th National Meeting, Abstracts of Scientific Papers
出版狀態已發佈 - 2008
對外發佈
事件235th National Meeting of the American Chemical Society, ACS 2008 - New Orleans, LA, 美国
持續時間: 4月 6 20084月 10 2008

出版系列

名字ACS National Meeting Book of Abstracts
ISSN(列印)0065-7727

會議

會議235th National Meeting of the American Chemical Society, ACS 2008
國家/地區美国
城市New Orleans, LA
期間4/6/084/10/08

ASJC Scopus subject areas

  • 化學 (全部)
  • 化學工程 (全部)

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