US 11,701,645 B2
Calcination of microporous molecular sieve catalysts
Larry L. Iaccino, Seabrook, TX (US); Jeremy W. Bedard, Humble, TX (US); Xiaoying Bao, Houston, TX (US); Andrew P. Palermo, Houston, TX (US); Nitish Mittal, Houston, TX (US); Maria Milina, Houston, TX (US); Doron Levin, Highland Park, NJ (US); William R. Gunther, Clinton, NJ (US); Wenyih F. Lai, Bridgewater, NJ (US); and Tilman W. Beutel, Neshanic Station, NJ (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Appl. No. 17/284,636
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
PCT Filed Oct. 10, 2019, PCT No. PCT/US2019/055538
§ 371(c)(1), (2) Date Apr. 12, 2021,
PCT Pub. No. WO2020/091968, PCT Pub. Date May 7, 2020.
Claims priority of provisional application 62/752,549, filed on Oct. 30, 2018.
Prior Publication US 2021/0394163 A1, Dec. 23, 2021
Int. Cl. B01J 29/44 (2006.01); B01J 6/00 (2006.01); B01J 8/02 (2006.01); B01J 29/46 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); C07C 5/373 (2006.01)
CPC B01J 29/44 (2013.01) [B01J 6/002 (2013.01); B01J 8/0285 (2013.01); B01J 29/46 (2013.01); B01J 37/0009 (2013.01); B01J 37/0207 (2013.01); B01J 37/04 (2013.01); B01J 37/082 (2013.01); C07C 5/373 (2013.01); C07C 2529/44 (2013.01); C07C 2529/46 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A catalyst comprising: (i) a microporous crystalline metallosilicate having a Constraint Index of 12 or less, (ii) a binder, (iii) a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof, (iv) a Group 10 metal or a compound thereof, and, (v) optionally a Group 11 metal or a compound thereof; wherein the catalyst is calcined in a first calcining step of calcining the catalyst before the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof; and wherein the first calcining step includes heating the catalyst to temperatures of greater than 500° C.; and calcinating the catalyst in a second calcining step after the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof wherein the second calcining step includes heating the catalyst to temperatures of greater than 400° C.