阅读说明：本技术 在低温下在含氨的气体混合物中氧化低级烯烃的方法 (Process for the oxidation of lower olefins in ammonia-containing gas mixtures at low temperatures ) 是由 P·贝亚托 T·V·W·詹森斯 于 2018-06-07 设计创作，主要内容包括：在含有铜和一种或多种沸石或类沸石材料的催化剂上氧化低级烯烃(例如乙烯)的方法中,氧化在进料气体中存在氨的情况下在低于350℃的工艺温度下进行。氧化可以连续过程进行。(In a process for the oxidation of a lower olefin, such as ethylene, over a catalyst comprising copper and one or more zeolite or zeolite-like materials, the oxidation is carried out in the presence of ammonia in the feed gas at a process temperature below 350 ℃. The oxidation may be carried out as a continuous process.)

1. A process for the oxidation of lower olefins over a catalyst comprising copper and one or more zeolitic or zeotype materials, wherein the oxidation is carried out in the presence of ammonia in the feed gas at a process temperature below 350 ℃.

2. The method of claim 1, wherein the zeolite or zeolite-like material is mixed with an oxide of Cu.

3. The method of claim 1 or 2, wherein the zeolite-like is a silicoaluminophosphate material.

4. The method of any one of claims 1-3, wherein the oxidizing is performed in a continuous process.

5. The process of any one of claims 1-4, wherein the lower olefin is ethylene.

6. The method of any one of claims 1-5, wherein the reaction product is ethylene oxide.

7. The process of any one of claims 1-5, wherein the reaction product is ethylene glycol.

8. The process of any one of claims 1-5, wherein the reaction product is acetaldehyde.

9. The process of any of claims 1-4, wherein the lower olefin is propylene.

10. The process of any one of claims 1-4 and 9, wherein the reaction product is propylene oxide.

11. A process according to any one of claims 1 to 10, wherein the ammonia content in the feed gas is from 1 to 5000 ppmv.

12. The process of any one of claims 1-10, wherein the oxygen content in the feed gas is 10 vol% or less.

13. The process of any one of claims 1-10, wherein the water content in the feed gas is 10 vol% or less.

14. The process according to any one of claims 1 to 10, wherein the process temperature is 250 ℃ or less.

15. The process of any preceding claim, wherein the one or more zeolitic or zeotype materials in the catalyst have a structure selected from the group consisting of: AEI, AFX, CHA, KFI, ERI, GME, LTA, IMF, ITH, MEL, MFI, SZR, TUN,. about.BEA, BEC, FAU, FER, MOR, and LEV.

16. The process of claim 15, wherein the Cu-zeolite catalyst is selected from the group consisting of Cu-CHA, Cu-MOR, Cu-MFI, Cu-BEA, Cu-ZSM-5, and Cu-FER.

17. The method of claim 15, wherein the Cu-based catalyst is Cu-CHA.