Gas separation: processes – Liquid contacting – And degasification of a liquid
Reexamination Certificate
2011-08-30
2011-08-30
Smith, Duane (Department: 1776)
Gas separation: processes
Liquid contacting
And degasification of a liquid
C423S220000, C423S226000, C423S650000, C423S655000, C423S24000R, C423S242100, C095S235000, C095S236000, C095S204000, C095S174000, C095S181000, C095S183000
Reexamination Certificate
active
08007569
ABSTRACT:
The invention relates to a method for removing hydrogen sulphide and other acidic gas components from pressurized technical gases by means of a physical detergent and for obtaining sulphur from hydrogen sulphide by using a Claus system. The hydrogen sulphide and the other acidic gas components are removed in an absorbent manner from the physical detergent, the physical detergent undergoes multi-step regeneration, said multi-step regeneration comprising at least one device for CO enrichment, a device for H2S enrichment, a device for CO2stripping and a device for thermal regeneration. The various regeneration steps consist of various pressure steps and have a lower pressure than that of the absorption. A hydrogen sulphide rich Claus gas is withdrawn from one of the regeneration steps and is guided to a Claus system where sulphur is produced. The residual gas exiting from the Claus system is hydrated and is condensed under pressure, corresponding to one of the regeneration steps. The condensed residual gas is guided into said device which is used for CO enrichment. Said device for CO enrichment can be embodied as a flash column.
REFERENCES:
patent: 2327134 (1943-08-01), Schuftan
patent: 2863527 (1958-12-01), Becker et al.
patent: 3215623 (1965-11-01), Hix
patent: 4052176 (1977-10-01), Child et al.
patent: 4155987 (1979-05-01), Peterman et al.
patent: 4206194 (1980-06-01), Fenton et al.
patent: 4241032 (1980-12-01), Werner et al.
patent: 4250150 (1981-02-01), Karwat et al.
patent: 4254094 (1981-03-01), Hegarty
patent: 4261964 (1981-04-01), Scott et al.
patent: 4263270 (1981-04-01), Groenendaal et al.
patent: 4324567 (1982-04-01), Ranke et al.
patent: 4356161 (1982-10-01), McNamara et al.
patent: 4425317 (1984-01-01), Zeller et al.
patent: 4448588 (1984-05-01), Cheng
patent: 4475347 (1984-10-01), Hegarty et al.
patent: 4609388 (1986-09-01), Adler et al.
patent: 4936869 (1990-06-01), Minderman et al.
patent: 5607594 (1997-03-01), Pohl et al.
patent: 6030597 (2000-02-01), Buchanan et al.
patent: 6497852 (2002-12-01), Chakravarti et al.
patent: 6517801 (2003-02-01), Watson et al.
patent: 6884282 (2005-04-01), Stevens et al.
patent: 7309382 (2007-12-01), Cadours et al.
patent: 2005/0132883 (2005-06-01), Su et al.
patent: 2041157 (1991-11-01), None
patent: 23 29 608 (1975-01-01), None
patent: 0 455 285 (1991-11-01), None
patent: 0 520 316 (1992-06-01), None
Menzel Johannes
Saecker Georg
Marshall & Melhorn LLC
Smith Duane
Uhde GmbH
Wu Ives
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