Chemistry of inorganic compounds – Nitrogen or compound thereof – Ammonia or ammonium hydroxide
Patent
1992-03-13
1993-02-09
Langel, Wayne
Chemistry of inorganic compounds
Nitrogen or compound thereof
Ammonia or ammonium hydroxide
564 69, C01C 104, C07C27304
Patent
active
051851393
ABSTRACT:
The present invention is directed to a method for producing carbon dioxide and nitrogen from combustion exhaust gas containing less than about 10% oxygen by weight which comprises the steps of (a) treating the exhaust gas to remove particulate matter, (b) compressing the exhaust gas to a pressure in the range from about 25 psia to about 200 psia, (c) purifying the exhaust gas to remove trace contaminants, (d) separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction, (e) liquifying the carbon dioxide rich fraction and distilling off volatile contaminants to produce pure carbon dioxide, (f) purifying the nitrogen rich fraction to remove contaminants, and (g) cryogenically fractionally distilling the nitrogen rich fraction to produce pure nitrogen. In another embodiment, the invention is directed to a method for producing carbon dioxide, nitrogen, and argon from a combustion exhaust gas. The combustion exhaust gas in the present invention may be obtained from an ammonia plant reformer furnace and the nitrogen produced may be employed as a synthesis gas in the ammonia reactor.
REFERENCES:
patent: 2545778 (1951-03-01), Haringhuizen
patent: 3498067 (1970-03-01), Ranke
patent: 3872025 (1975-03-01), Singleton
patent: 4255406 (1981-03-01), Isalski et al.
patent: 4371381 (1983-02-01), Schuftan
patent: 4595404 (1986-06-01), Ozero et al.
patent: 4613492 (1986-09-01), Winter
patent: 4704146 (1987-11-01), Markbretter et al.
patent: 4759786 (1988-07-01), Atkinson et al.
patent: 5068058 (1991-11-01), Bushinsky et al.
patent: 5069891 (1991-12-01), Bendix et al.
Andrecovich Mark J.
Krishnamurthy Ramachandran
Cassett Larry
Langel Wayne
Reap Coleman R.
The BOC Group Inc.
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