Process for purifying exhaust gases

Details Process for purifying exhaust gases Process for purifying exhaust gases

1995-10-17

1999-06-15

Lewis, Michael

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

4232132, 4232391, B01D 5394, B01D 5360

Patent

active

059119608

ABSTRACT:
A catalyst for purifying exhaust gases includes a porous support, at least one catalyst ingredient selected from Pt and Pd, and additional ingredients including (1) at least two rare-earth elements including La, (2) at least one rare-earth element including La and at least one transition element selected from Fe, Ni, Co and Mn, (3) at least two alkali metals, (4) at least one alkali metal and at least one rare-earth element including La, (5) at least one alkali metal and at least one transition element selected from Fe, Ni, Co and Mn, (6) at least two alkaline-earth metals, (7) at least one alkaline-earth metal and at least one rare-earth element including La, or (8) Ba, Li, La, Ce and Zr. A process for purifying an exhaust gas, by contacting the catalyst with an exhaust gas, is also provided.

REFERENCES:
patent: 3931050 (1976-01-01), Asano et al.
patent: 4294726 (1981-10-01), Bozon et al.
patent: 4369132 (1983-01-01), Kinoshita et al.
patent: 4480050 (1984-10-01), Brennan
patent: 4497783 (1985-02-01), Barber
patent: 4528279 (1985-07-01), Suzuki et al.
patent: 4654319 (1987-03-01), Kim et al.
patent: 4682577 (1987-07-01), Kato et al.
patent: 4755499 (1988-07-01), Neal et al.
patent: 4760044 (1988-07-01), Joy et al.
patent: 4780447 (1988-10-01), Kim et al.
patent: 4808564 (1989-02-01), Matsumoto et al.
patent: 4849398 (1989-07-01), Takada et al.
patent: 4868148 (1989-09-01), Henki et al.
patent: 4904633 (1990-02-01), Ohata et al.
patent: 4963521 (1990-10-01), Engler et al.
patent: 5024985 (1991-06-01), Koberstein et al.
patent: 5041407 (1991-08-01), Williamson et al.
patent: 5075274 (1991-12-01), Kiyohide et al.
patent: 5075275 (1991-12-01), Murakami et al.
patent: 5179059 (1993-01-01), Domesle et al.
patent: 5185305 (1993-02-01), Subramanian et al.
patent: 5208202 (1993-05-01), Muramatsu et al.
patent: 5208203 (1993-05-01), Horiuchi et al.
patent: 5208205 (1993-05-01), Subramanian et al.
patent: 5236879 (1993-08-01), Inoue et al.
patent: 5248650 (1993-09-01), Sekiba et al.
patent: 5268346 (1993-12-01), Ino et al.
patent: 5271916 (1993-12-01), Vanderborgh et al.
patent: 5294421 (1994-03-01), Muraki et al.
patent: 5388406 (1995-02-01), Takeshima et al.
patent: 5402641 (1995-04-01), Katoh et al.
patent: 5412945 (1995-05-01), Katoh et al.
patent: 5575983 (1996-11-01), Suzuki et al.
Official Translation of Saito et al., Japan Kokai 62-106826, First Published 1987.

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