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Modified hollow ceramic fiber as well as preparation method 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 phenyl; and the second modified layer contains a secondary amino group and a primary amino 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. By adopting the modified hollow ceramic fiber, sulfur-containing impurities influencing the activity of an ethylbenzene alkylation catalyst in dry gas can be efficiently removed, accumulation of the sulfur-containing impurities in a catalytic system is reduced, the service life of the ethylbenzene alkylation catalyst is effectively prolonged, the production cost of ethylbenzene is reduced, and the modified hollow ceramic fiber can be applied to industrial production of a device for preparing ethylbenzene from the 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苯基；所述第二改性层含有仲胺基和伯胺基。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。采用本发明改性中空陶瓷纤维可以高效脱除干气中影响乙苯烷基化催化剂活性的含硫杂质，减轻含硫杂质在催化系统中累积，有效延长乙苯烷基化催化剂的使用周期、降低乙苯生产成本，可用于干气制乙苯装置的工业生产中。
Modified hollow ceramic fiber as well as preparation method 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 phenyl; and the second modified layer contains a secondary amino group and a primary amino 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. By adopting the modified hollow ceramic fiber, sulfur-containing impurities influencing the activity of an ethylbenzene alkylation catalyst in dry gas can be efficiently removed, accumulation of the sulfur-containing impurities in a catalytic system is reduced, the service life of the ethylbenzene alkylation catalyst is effectively prolonged, the production cost of ethylbenzene is reduced, and the modified hollow ceramic fiber can be applied to industrial production of a device for preparing ethylbenzene from the 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苯基；所述第二改性层含有仲胺基和伯胺基。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。采用本发明改性中空陶瓷纤维可以高效脱除干气中影响乙苯烷基化催化剂活性的含硫杂质，减轻含硫杂质在催化系统中累积，有效延长乙苯烷基化催化剂的使用周期、降低乙苯生产成本，可用于干气制乙苯装置的工业生产中。
Modified hollow ceramic fiber as well as preparation method and application thereof
一种改性中空陶瓷纤维及其制备方法和应用
SONG HAIFENG (author) / ZHONG YUAN (author)
2023-04-14
Patent
Electronic Resource
Chinese
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