公开(公告)号：US09844770B2

公开(公告)日：2017-12-19

申请号：US14366156

申请日：2012-04-23

Applicant: Lei Xu ,  Zhongmin Liu ,  Shukui Zhu ,  Zhengxi Yu

Inventor： Lei Xu ,  Zhongmin Liu ,  Shukui Zhu ,  Zhengxi Yu

IPC: C07C1/22 ,  B01J29/40 ,  C07C1/20

CPC classification number: B01J29/405 ,  B01J2229/186 ,  B01J2229/32 ,  C07C1/20 ,  C07C1/22 ,  C07C2523/10 ,  C07C2529/06 ,  C07C2529/40 ,  Y02P20/52 ,  Y02P30/42 ,  C07C11/04 ,  C07C11/06

Abstract: The application provides a catalyst for producing ethylene and propylene from methanol and/or dimethyl ether, and a preparation and application thereof. In the present application, a molecular sieve catalyst co-modified by rare earth metals and silanization is utilized. First, the material containing methanol and/or dimethyl ether reacts on the catalyst to generate hydrocarbons. The hydrocarbons are separated into a C1-C5 component and a C6+ component. Then the C6+ component is recycled to the feeding port and fed into the reactor after mixing with methanol and/or dimethyl ether. The above steps are repeated, to finally generate C1-C5 products, in which the selectivity for ethylene and propylene can reach more than 90 wt % in the C1-C5 component, so that the maximal yield can be achieved in the production of ethylene and propylene from methanol and/or dimethyl ether.

公开(公告)号：US20140343337A1

公开(公告)日：2014-11-20

申请号：US14366209

申请日：2012-04-26

Applicant: Lei Xu ,  Zhongmin Liu ,  Zhengxi Yu

Inventor： Lei Xu ,  Zhongmin Liu ,  Zhengxi Yu

IPC: B01J31/26 ,  C07C2/86

CPC classification number: B01J31/26 ,  B01J29/40 ,  B01J29/405 ,  B01J31/0204 ,  B01J31/0274 ,  B01J31/0275 ,  B01J2229/186 ,  B01J2229/32 ,  B01J2231/005 ,  C07C2/862 ,  C07C2/864 ,  C07C2/865 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/16 ,  C07C2523/06 ,  C07C2523/08 ,  C07C2529/40 ,  Y02P20/52 ,  Y02P30/20 ,  C07C15/08

Abstract: This application provides a catalyst for producing paraxylene by co-conversion of methanol and/or dimethyl ether and C4 liquefied gas, and preparation and application thereof. The catalyst is an aromatization molecular sieve catalyst with a shape-selective function co-modified by bimetal and siloxane compound. Methanol and/or dimethyl ether and C4 liquefied gas are fed in reactor together, wherein aromatization reaction occurring on a modified shape-selective molecular sieve catalyst. The yield of aromatics is effectively improved, in which paraxylene is the main product. In products obtained by co-conversion of methanol and/or dimethyl ether and C4 liquefied gas, the yield of aromatics is greater than 70 wt %, and the content of paraxylene in aromatics is greater than 80 wt %, and the selectivity of paraxylene in xylene is greater than 99 wt %.

Abstract translation: 本申请提供了通过甲醇和/或二甲醚和C4液化气的共转化生产对二甲苯的催化剂及其制备和应用。 催化剂是具有由双金属和硅氧烷化合物共同修饰的形状选择性功能的芳构化分子筛催化剂。 将甲醇和/或二甲醚和C4液化气体一起进料到反应器中，其中在改性形状选择性分子筛催化剂上发生芳构化反应。 芳烃的产率有效提高，其中对二甲苯为主要成分。 在通过甲醇和/或二甲醚和C4液化气的共转化得到的产物中，芳族化合物的产率大于70重量％，芳族化合物中对二甲苯的含量大于80重量％，对二甲苯的选择性 二甲苯大于99重量％。

公开(公告)号：US09968922B2

公开(公告)日：2018-05-15

申请号：US14366209

申请日：2012-04-26

Applicant: Lei Xu ,  Zhongmin Liu ,  Zhengxi Yu

Inventor： Lei Xu ,  Zhongmin Liu ,  Zhengxi Yu

IPC: B01J31/26 ,  B01J29/40 ,  C07C2/86 ,  B01J31/02

CPC classification number: B01J31/26 ,  B01J29/40 ,  B01J29/405 ,  B01J31/0204 ,  B01J31/0274 ,  B01J31/0275 ,  B01J2229/186 ,  B01J2229/32 ,  B01J2231/005 ,  C07C2/862 ,  C07C2/864 ,  C07C2/865 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/16 ,  C07C2523/06 ,  C07C2523/08 ,  C07C2529/40 ,  Y02P20/52 ,  Y02P30/20 ,  C07C15/08

Abstract: This application provides a catalyst for producing paraxylene by co-conversion of methanol and/or dimethyl ether and C4 liquefied gas, and preparation and application thereof. The catalyst is an aromatization molecular sieve catalyst with a shape-selective function co-modified by bimetal and siloxane compound. Methanol and/or dimethyl ether and C4 liquefied gas are fed in reactor together, wherein aromatization reaction occurring on a modified shape-selective molecular sieve catalyst. The yield of aromatics is effectively improved, in which paraxylene is the main product. In products obtained by co-conversion of methanol and/or dimethyl ether and C4 liquefied gas, the yield of aromatics is greater than 70 wt %, and the content of paraxylene in aromatics is greater than 80 wt %, and the selectivity of paraxylene in xylene is greater than 99 wt %.

公开(公告)号：US20150005559A1

公开(公告)日：2015-01-01

申请号：US14366156

申请日：2012-04-23

Applicant: Lei Xu ,  Zhongmin Liu ,  Shukui Zhu ,  Zhengxi Yu

Inventor： Lei Xu ,  Zhongmin Liu ,  Shukui Zhu ,  Zhengxi Yu

IPC: B01J29/40 ,  C07C1/22

CPC classification number: B01J29/405 ,  B01J2229/186 ,  B01J2229/32 ,  C07C1/20 ,  C07C1/22 ,  C07C2523/10 ,  C07C2529/06 ,  C07C2529/40 ,  Y02P20/52 ,  Y02P30/42 ,  C07C11/04 ,  C07C11/06

Abstract: The application provides a catalyst for producing ethylene and propylene from methanol and/or dimethyl ether, and a preparation and application thereof. In the present application, a molecular sieve catalyst co-modified by rare earth metals and silanization is utilized. First, the material containing methanol and/or dimethyl ether reacts on the catalyst to generate hydrocarbons. The hydrocarbons are separated into a C1-C5 component and a C6+ component. Then the C6+ component is recycled to the feeding port and fed into the reactor after mixing with methanol and/or dimethyl ether. The above steps are repeated, to finally generate C1-C5 products, in which the selectivity for ethylene and propylene can reach more than 90 wt % in the C1-C5 component, so that the maximal yield can be achieved in the production of ethylene and propylene from methanol and/or dimethyl ether.

Abstract translation: 本申请提供了用于从甲醇和/或二甲醚生产乙烯和丙烯的催化剂及其制备和应用。 在本申请中，利用由稀土金属共同修饰的分子筛催化剂和硅烷化。 首先，含有甲醇和/或二甲醚的物质在催化剂上反应生成烃。 将烃分离成C1-C5组分和C6 +组分。 然后将C6 +组分再循环至进料口，并与甲醇和/或二甲醚混合后送入反应器。 重复上述步骤，最终产生C1-C5产物，其中乙烯和丙烯的选择性可以在C1-C5组分中达到超过90重量％，从而在乙烯的生产中可以实现最大的收率， 来自甲醇和/或二甲醚的丙烯。