一种焦化汽油脱硅催化剂及其制备方法

Coked gasoline desilication catalyst and preparation method thereof

Abstract

The invention discloses a coked gasoline desilication catalyst and a preparation method thereof. The coked gasoline desilication catalyst disclosed by the invention contains an Al2O3-TiO2-B2O3 composite oxide as a carrier and Ni-Mo-W-Ce as an active component; the used Al2O3-TiO2-B2O3 carrier comprises the following components in percentage by weight: 10-20% of TiO2, 3-10% of B2O3, and the balance of Al2O3; and, in terms of the weight percentage of the catalyst, the active component comprises the following components in percentage by weight: 1.2-3.9% of NiO, 4.2-9.5% of MoO3, 5-15% of WO3, 1.5-2.5% of CeO2, and the balance of the carrier. The coked gasoline desilication catalyst disclosed by the invention is roasted in the atmosphere of water vapor, has a special pore diameter and higher pore volume, and is capable of effectively adsorbing and desorbing silicon impurities and protecting subsequent purification of the catalyst by mainly adding hydrogen into coked gasoline.
本发明公开了一种焦化汽油脱硅催化剂及其制备方法。该催化剂以Al2O3-TiO2-B2O3复合氧化物为载体,以Ni-Mo-W-Ce为活性组分。所使用的Al2O3-TiO2-B2O3-载体,按重量百分比计TiO2含量为10~20%,B2O3含量为3%~10%,其余为Al2O3。按催化剂的重量百分比计,其活性组分中NiO含量为1.2-3.9%,MoO3含量为4.2-9.5%,WO3含量为5-15%,CeO2含量为1.5-2.5%,其余为载体;该催化剂在水蒸气的氛围中焙烧,具备特定孔径、较大孔容,能有效的吸附脱除杂质硅,保护后续的焦化汽油主加氢精制催化剂。

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NO-Patent Citations (2)

    Title
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