TW200607563A - Compositions and processes for reducing NOx emissions during fluid catalytic cracking - Google Patents

Compositions and processes for reducing NOx emissions during fluid catalytic cracking

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Publication number
TW200607563A
TW200607563A TW094126051A TW94126051A TW200607563A TW 200607563 A TW200607563 A TW 200607563A TW 094126051 A TW094126051 A TW 094126051A TW 94126051 A TW94126051 A TW 94126051A TW 200607563 A TW200607563 A TW 200607563A
Authority
TW
Taiwan
Prior art keywords
compositions
catalytic cracking
fluid catalytic
nox
reduction
Prior art date
Application number
TW094126051A
Other languages
Chinese (zh)
Other versions
TWI396589B (en
Inventor
George Yaluris
Michael Scott Ziebarth
Xin-Jin Zhao
Original Assignee
Grace W R & Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/909,709 external-priority patent/US20050232839A1/en
Application filed by Grace W R & Co filed Critical Grace W R & Co
Publication of TW200607563A publication Critical patent/TW200607563A/en
Application granted granted Critical
Publication of TWI396589B publication Critical patent/TWI396589B/en

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Abstract

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 particulate NOx reduction composition containing particles of a zeolite having a pore size ranging from about 3 to about 7.2 Angstoms and a SiO to Al2O3 molar ratio of less than about 500. Preferably, the NOx reduction composition contains NOx reduction zeolite particles bound with an inorganic binder. In the alternative, the NOx reduction zeolite particles are incorporated into the cracking catalyst as an integral component of the catalyst. Compositions in accordance with the invention are very effective for the reduction of NOx emissions released from the regenerator of a fluid catalytic cracking unit operating under FCC process conditions without a substantial change in conversion or yield of cracked products. Processes for the use of the compositions are also disclosed.
TW94126051A 2004-08-02 2005-08-01 Compositions and processes for reducing nox emissions during fluid catalytic cracking TWI396589B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/909,709 US20050232839A1 (en) 2004-04-15 2004-08-02 Compositions and processes for reducing NOx emissions during fluid catalytic cracking

Publications (2)

Publication Number Publication Date
TW200607563A true TW200607563A (en) 2006-03-01
TWI396589B TWI396589B (en) 2013-05-21

Family

ID=49078259

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94126051A TWI396589B (en) 2004-08-02 2005-08-01 Compositions and processes for reducing nox emissions during fluid catalytic cracking

Country Status (1)

Country Link
TW (1) TWI396589B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111867727A (en) * 2018-03-28 2020-10-30 庄信万丰股份有限公司 Passive NOxAdsorbent and process for producing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973399A (en) * 1989-11-03 1990-11-27 Mobil Oil Corporation Catalytic cracking of hydrocarbons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111867727A (en) * 2018-03-28 2020-10-30 庄信万丰股份有限公司 Passive NOxAdsorbent and process for producing the same

Also Published As

Publication number Publication date
TWI396589B (en) 2013-05-21

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MM4A Annulment or lapse of patent due to non-payment of fees