Method for the purification of gasification gas

Details Method for the purification of gasification gas Method for the purification of gasification gas

2002-06-20

2008-11-25

Ryan, Patrick (Department: 1795)

Gas: heating and illuminating

Processes

Manufacture from methane

C048S1970FM, C048S061000, C502S300000, C502S349000

Reexamination Certificate

active

07455705

ABSTRACT:
The invention relates to a method for the purification of gasification gas obtained from a carbonaceous material. The purification is carried out by adding oxygen or an oxygen-containing gas to the gasification gas and by contacting the gas mixture with a solid catalyst. According to the invention the catalyst contains at least one zirconium compound, such as zirconium oxide, which is used in particulate form as such or, for example, combined with an inert, honeycomb-structured support. By the purification, ammonia and organic tarry impurities can be removed from the gas simultaneously.

REFERENCES:
patent: 1727892 (1929-09-01), Moses
patent: 1844393 (1932-02-01), Jaeger
patent: 3121611 (1964-02-01), Parker
patent: 4331451 (1982-05-01), Isogaya et al.
patent: 4769224 (1988-09-01), van Grinsven et al.
patent: 5906803 (1999-05-01), Leppalahti
patent: 2001/0055560 (2001-12-01), Schiodt et al.
patent: 2002/0028171 (2002-03-01), Goetsch et al.
patent: 0 460 738 (1991-12-01), None
patent: 0 700 717 (1996-03-01), None

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