Compositions and processes for reducing nox emissions during fluid catalytic cracking
CA 2606249 C · Owner: W.R. Grace & Co.-Conn. · Inventors: Krishnamoorthy, Meenakshi Sundaram; Ziebarth, Michael S.; Lussier, Roger J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions for reduction of NOx generated during a catalytic cracking process, preferably, a fluid catalytic cracking process are disclosed. The , compositions comprise a fluid catalytic cracking catalyst composition preferably containing a Y-type zeolite and a NOx reducing zeolite having a , pore size ranging from about 2 to about 7.2 Angstoms and a SiO2 to Al2O3 molar ratio of less than about 500 and being stabilized with a metal or metal ion selected from the group consisting of zinc iron and mixtures thereof. , Preferably the NOx reducing zeolite particles are bound with an inorganic binder to form a particulate composition. In the alternative the NOx reducing , zeolite particles …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 24, 2006 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.