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1. (WO2019048375) CATALYST COMPRISING A NOVEL MOLECULAR SIEVE BELONGING TO THE ERI FAMILY AND USE OF THE CATALYST
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Claims

1 . Catalyst comprising a molecular sieve with the ERI framework type having a mole ratio of silica-to-alumina from about 8 to about 100 and a crystal morphology de-fined by the ratio between the dimensions rc along and ra orthogonal to the unique c-axis between 0.5 and 2.0.

2. The catalyst of claim 1 , wherein the calcined form of the ERI molecular sieve has a powder X-ray diffraction pattern collected in Bragg-Brentano geometry with a variable divergence slit using Cu K-alpha radiation essentially as shown in the following Table:


*Peak intensities and letter assignment is uncertain because of significant peak overlap where the relative areas of the observed peaks in the 2-Theta range 7-19 degrees are shown according to: W = weak: 0-20%; M = medium: 20-40%; S = strong: 40-60% and VS = very strong: 60-100%. 2-Theta values are ± 0.20°.

3. The catalyst of claim 1 or 2, wherein the ERI molecular sieve has a silica-to-alumina mole ratio between 8 and 100.

4. The catalyst of claim 1 or 2, wherein the ERI molecular sieve has a silica-to-alumina mole ratio between 10 and 60.

5. The catalyst of any one of claim 1 to 4, wherein at least a part of the aluminum and/or silicon of the ERI molecular sieve is substituted by one or more metals selected from tin, zirconium, titanium, hafnium, germanium, boron, iron, indium and gallium.

6. The catalyst of any one of claims 1 to 5, wherein the ERI molecular sieve contains copper and/or iron.

7. A method for the conversion of nitrogen oxides to nitrogen in presence of a re-ductant comprising the step of contacting the nitrogen oxides and the reductant with the catalyst according to any one of claims 1 to 6.

8. The method of claim 7, wherein the reductant comprises hydrocarbons and/or ammonia or a precursor thereof.

9. The method of claim 7 or 8, wherein the nitrogen oxides are contained in engine exhaust.

10. The method of claim 7 or 8, wherein the nitrogen oxides are contained in exhaust from a gas turbine.

1 1 . The method of any one of claim 7 to 10, wherein the nitrogen oxides comprise nitrous oxide.

12. A method for the selective oxidation of ammonia to nitrogen comprising the step of contacting the ammonia or a gas comprising the ammonia with the catalyst according to any one of claims 1 to 6.

13. The method of claim 12, wherein the catalyst is arranged downstream and/or upstream of a Diesel oxidation catalyst.

14. The method of claim 12 or 13, wherein the catalyst is arranged upstream of an ammonia slip catalyst.

15. The method of any one of claims 12 to 14, wherein the catalyst is arranged upstream and/or downstream of a diesel particulate filter

16. The method of claim 12, wherein the catalyst further comprises an oxidation functionality or an oxidation catalyst.

17. The method of claim 16, wherein the catalyst is arranged downstream of a selective catalytic reduction catalyst and wherein an excess of ammonia is used to re-duce nitrogen oxides.

18. A method for the simultaneous oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides comprising the step of contacting the hydrocarbons, carbon monoxide and the nitrogen oxides with a catalyst according to any one of claims 1 to 6.

19. The method of any one of claim 15 to 18, wherein the catalyst further comprises one or more platinum group metals.

20. The method of any one of claim 12 to 19, wherein catalyst is coated on a monolith or on a corrugated substrate or in form of an extrudate.

21 . A method for the conversion of oxygenates to hydrocarbons the comprising the step of contacting the oxygenates with a catalyst according to any one of claims 1 to 6.

22. The method according to claim 21 , wherein the produced hydrocarbons comprise olefins.

23. A method for partial oxidation of methane to methanol and/or dimethyl ether comprising the step of contacting the methane with a catalyst according to any one of claims 1 to 6.

24. A method for the for the preparation of lower amines by reaction of ammonia with methanol in presence of a catalyst according to any one of claims 1 to 6.