C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/94
C10G 57/00 (2006.01) B01J 37/04 (2006.01) C10G 35/095 (2006.01)
Patent
CA 1231661
A B S T R A C T PROCESS FOR UPGRADING A GASOLINE A complete gasoline fraction obtained by catalytic cracking, which has an aromatics content of a %w and consists of a light, a middle and a heavy fraction, said heavy fraction having an aromatics content of b %w such that 0.35 < ? < 0.45, is upgraded by separating the mixture of light and middle fraction from the product obtained by catalytic cracking and contacting this mixture or a part of it with a crystalline metal silicate which after one hour's calcination in air at 500°C has the following properties: a) an X-ray powder diffraction pattern in which the strongest lines are the four lines mentioned in Table A, Image , and b) in the formula which expresses the composition of the silicate in moles of the oxides and which, in addition to SiO2, includes at least one member chosen from the group consisting of Al2O3 and Fe2O3, the SiO2/(Fe2O3 + Al2O3) molar ratio is higher than 10 while in an iron silicate or an iron-aluminium silicate the SiO2/Fe2O3 molar ratio is lower than 250 or in an aluminium silicate the SiO2/Al2O3 molar ratio is lower than 500.
454439
Shell Canada Limited
Smart & Biggar
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