Title:
MODIFIED ZEOLITE CATALYST
Document Type and Number:
WIPO Patent Application WO/2011/002630
Kind Code:
A3
Abstract:
A modified zeolite catalyst derived from a zeolite of a structural type which consists of a one-dimensional micropore structure of channels made from rings containing between 8 and 12 silicon/aluminium atoms is disclosed. It consists substantially of a plurality of crystallites having additional mesoporosity whose volume is in the range 0.09 to 0.25 ml3g-1 as measured by nitrogen absorption at 77ºK and calculated by the BJH method. The mesoporosity may be introduced into the crystallites by e.g. treatment with aqueous sodium hydroxide at a pH at 25ºC in excess of 8 for an extended period at elevated temperature. The catalyst shows improved resistance to catalyst deactivation and greater selectivity to higher hydrocarbons when used to e.g. oligomerize light alkenes e.g. propene or the butenes.
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Inventors:
CORMA AVELINO (ES)
MARTINEZ CRISTINA (ES)
DOSKOCIL ERIC J (US)
YALURIS GEORGE (US)
MARTINEZ CRISTINA (ES)
DOSKOCIL ERIC J (US)
YALURIS GEORGE (US)
Application Number:
PCT/US2010/039407
Publication Date:
March 17, 2011
Filing Date:
June 22, 2010
Export Citation:
Assignee:
BP OIL INT (GB)
BP CORP NORTH AMERICA INC (US)
CORMA AVELINO (ES)
MARTINEZ CRISTINA (ES)
DOSKOCIL ERIC J (US)
YALURIS GEORGE (US)
BP CORP NORTH AMERICA INC (US)
CORMA AVELINO (ES)
MARTINEZ CRISTINA (ES)
DOSKOCIL ERIC J (US)
YALURIS GEORGE (US)
International Classes:
B01J37/06; B01J29/70
Domestic Patent References:
| WO2008147190A1 | 2008-12-04 |
Foreign References:
| US5118482A | 1992-06-02 | |||
| US5248841A | 1993-09-28 |
Other References:
DEREWINSKI M ET AL: "Thermal stability and siting of aluminum in isostructural ZSM-22 and Theta-1 zeolites", CATALYSIS TODAY, ELSEVIER, vol. 114, no. 2-3, 15 May 2006 (2006-05-15), pages 197 - 204, XP025116601, ISSN: 0920-5861, [retrieved on 20060515]
Attorney, Agent or Firm:
SCHOETTLE, Ekkehard (4101 Winfield RoadMail Code 5 Eas, Warrenville IL, US)
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