Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified hollow ceramic fiber and preparation and application thereof
The invention discloses a modified hollow ceramic fiber as well as a preparation method and application thereof. The modified hollow ceramic fiber comprises a hollow ceramic fiber, and the inner surface of the hollow ceramic fiber comprises a silane layer, a first modified layer and a second modified layer from outside to inside; the first modified layer contains a tertiary amine group or a phenoxy group; and the second modified layer contains a secondary amino group, a primary amino group and a pyridyl group. The preparation method of the modified hollow ceramic fiber comprises the following steps: carrying out silanization treatment on a hollow ceramic fiber to obtain a silanized hollow ceramic fiber; and sequentially carrying out first modification treatment, second modification treatment and activation treatment on the obtained silanized hollow ceramic fiber to obtain the modified hollow ceramic fiber. The modified hollow ceramic fiber is suitable for efficiently removing sulfur-containing impurities influencing the activity of an ethylbenzene alkylation catalyst in dry gas.
本发明公开了一种改性中空陶瓷纤维及其制备方法和应用。所述改性中空陶瓷纤维包括中空陶瓷纤维，所述中空陶瓷纤维的内表面由外到内包括硅烷层、第一改性层和第二改性层；所述第一改性层中含有叔胺基或亚苯氧基；所述第二改性层含有仲胺基、伯胺基和吡啶基。所述改性中空陶瓷纤维的制备方法包括：中空陶瓷纤维经硅烷化处理，得到硅烷化中空陶瓷纤维；然后对所得的硅烷化中空陶瓷纤维依次进行第一改性处理、第二改性处理和活化处理，得到改性中空陶瓷纤维。本发明改性中空陶瓷纤维适用于高效脱除干气中影响乙苯烷基化催化剂活性的含硫杂质。
Modified hollow ceramic fiber and preparation and application thereof
The invention discloses a modified hollow ceramic fiber as well as a preparation method and application thereof. The modified hollow ceramic fiber comprises a hollow ceramic fiber, and the inner surface of the hollow ceramic fiber comprises a silane layer, a first modified layer and a second modified layer from outside to inside; the first modified layer contains a tertiary amine group or a phenoxy group; and the second modified layer contains a secondary amino group, a primary amino group and a pyridyl group. The preparation method of the modified hollow ceramic fiber comprises the following steps: carrying out silanization treatment on a hollow ceramic fiber to obtain a silanized hollow ceramic fiber; and sequentially carrying out first modification treatment, second modification treatment and activation treatment on the obtained silanized hollow ceramic fiber to obtain the modified hollow ceramic fiber. The modified hollow ceramic fiber is suitable for efficiently removing sulfur-containing impurities influencing the activity of an ethylbenzene alkylation catalyst in dry gas.
本发明公开了一种改性中空陶瓷纤维及其制备方法和应用。所述改性中空陶瓷纤维包括中空陶瓷纤维，所述中空陶瓷纤维的内表面由外到内包括硅烷层、第一改性层和第二改性层；所述第一改性层中含有叔胺基或亚苯氧基；所述第二改性层含有仲胺基、伯胺基和吡啶基。所述改性中空陶瓷纤维的制备方法包括：中空陶瓷纤维经硅烷化处理，得到硅烷化中空陶瓷纤维；然后对所得的硅烷化中空陶瓷纤维依次进行第一改性处理、第二改性处理和活化处理，得到改性中空陶瓷纤维。本发明改性中空陶瓷纤维适用于高效脱除干气中影响乙苯烷基化催化剂活性的含硫杂质。
Modified hollow ceramic fiber and preparation and application thereof
一种改性中空陶瓷纤维及其制备和应用
SONG HAIFENG (Autor:in) / HUANG XIEJUN (Autor:in)
14.04.2023
Patent
Elektronische Ressource
Chinesisch
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