Alumina silicate zeolite-type material having prolonged acid strength for use as a catalyst in selective catalytic reduction and process of making thereof
AssigneePacific Industrial Development Corporation
InventorsManjola Mancka, Yunkui Li, Jeffery LaChapelle, Wei Wu, David Shepard
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Abstract
The present disclosure generally provides novel STT-type zeolite materials called PIDC-120501, PIDC-120502, and PIDC-120805/120806 or PIDC-type zeolites and a method of making these zeolites. The present disclosure also provides for the use of these zeolite materials as a catalyst and a method of preparing said catalyst. The PIDC-type zeolites or STT-type zeolite materials may be used as a catalyst, such as in Selective Catalytic Reduction (SCR) applications.
Claims19
A crystalline, modified STT-type zeolite material for use as a catalyst, the modified STT-type zeolite material comprising a mole ratio ranging from 19:1 up to 50:1 of an oxide of a tetravalent element to an oxide of a trivalent element, and having peaks in an x-ray diffraction pattern with a 2 theta degree at 8.22, 9.68, 14.51, 15.55, 17.9, 18.58, 19.3, 19.66, 21.5, and 27.4 attributed to the presence of an SSZ-23 zeolite phase and the other peaks in the x-ray diffraction pattern being attributed to the presence of an SSZ-13 zeolite phase;
- wherein the peak intensities in the x-ray diffraction pattern for the peaks attributed to the SSZ-13 zeolite phase are greater than the peak intensities of the peaks attributed to the SSZ-23 zeolite phase.
Dependencies are inferred from the claim text.