Gd Gd-containing Anti-Coking Solid Acid Catalysts and Preparation Method and Use thereof

The present invention relates to an anti-coking catalyst containing a solid acid catalyst containing gadolinium (Gd) on the surface; to a method of preparing the same; and to a use of the same. The method comprises: a first step for selecting, with respect to the total weight of a solid acid catalys...

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Bibliographic Details
Main Authors KANG, SEOK CHANG, JUN, KI WON, HWANG, AH RON, KIM, SUNG TAK, KWAK, GEUN JAE
Format Patent
LanguageEnglish
Korean
Published 25.01.2018
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Summary:The present invention relates to an anti-coking catalyst containing a solid acid catalyst containing gadolinium (Gd) on the surface; to a method of preparing the same; and to a use of the same. The method comprises: a first step for selecting, with respect to the total weight of a solid acid catalyst, an amount of gadolinium (Gd) or a Gd-containing precursor which reduces coking of a solid acid catalyst under a reaction condition to an extent; and a second step of using the selected amount in the first step to prepare a Gd-containing solid acid catalyst. The catalyst according to the present invention has gadolinium impregnated in an appropriate weight ratio on the surface of a pure solid acid catalyst material or solid acid catalyst impregnated with a metal, and in hydrocarbon conversion reactions, suppresses the formation of coke on the surface of the catalyst while maintaining the activity of the solid acid catalyst, and consequently, the lifetime of the catalyst is extended. 본 발명은 표면에 Gd를 함유하는 고체산 촉매를 함유하는 코킹 저감 촉매 및 이의 제조 방법 및 용도에 관한 것이다. 상기 제조방법은 특정 반응조건에서 특정 고체산 촉매의 코킹을 특정 수준으로 저감시키는, 고체산 촉매 전체 중량 대비 가돌리니움(Gd) 또는 Gd 제공 전구체의 사용량을 선택하는 제1단계; 및 제1단계에서 확인된 사용량을 이용하여, Gd 함유 고체산 촉매를 제조하는 제2단계를 포함한다. 본 발명에 따른 촉매는 적절한 중량비의 가돌리니움이 순수 고체산 물질 혹은 특정 금속이 담지된 고체산 물질의 표면에 담지된 촉매로서 탄화수소 전환반응에서 고체산 촉매의 활성을 유지하면서 촉매 표면의 코크 생성이 억제되어 결과적으로 촉매의 수명이 개선된 효과를 보인다.
Bibliography:Application Number: KR20160090285