Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon monoxide component
Patent
1988-09-28
1990-08-21
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon monoxide component
C01B 3118, C10K 100
Patent
active
049504622
ABSTRACT:
CO is recovered from a CO-containing gas by contacting a CO-containing gas with a non-aqueous CO-absorbing solution comprising 3 to 6 moles/l of hexametaphosphateamine, 1 to 4 moles/l of cuprous chloride, 0.1 to 1% by weight of water and an organic solvent, thereby absorbing CO into the CO-absorbing solution from the CO-containing gas, and then atomizing the CO-absorbed solution, thereby stripping CO from the CO-absorbed solution and obtaining a CO gas, while recycling the CO-freed absorbing solution to the absorption of CO from the CO-containing gas with remarkable reduction in the corrosion rate on apparatus materials without impairing the CO absorption, and use of a two-fluid, simultaneous atomizing means for atomizing the CO-absorbed solution together with the vapor of the organic solvent can improve the CO stripping rate, and reduce the CO recovery cost.
REFERENCES:
Derwent Accession No. 82-18 803, Questel Telesystems (WPIL) Abstract & JP-A-57 019 013 (Babcock-Hitachi).
Derwent Accession No. 81-80 646, Questel Telesystems (WPIL) Abstract & JP-A-56-118-720 (Babcock-Hitachi).
Derwent Accession No. 84-066 219 Questel Telesystems (WPIL) Abstract & JP-A-59-022 626 (Babcock-Hitachi).
Derwent Accession No. 84-032 427, Questel Telesystems (WPIL) Abstract & JP-A-58-219 914 (Babcock-Hitachi).
Haase et al., The Cosorb Process, Chemical Engineering Progress, May 1974, pp. 74-77.
I&ISORB Process, Kagakukogyo, Jan. 1986, pp. 66-89.
Ishisaka Hiroshi
Nakao Genroku
Nishimura Yasuyuki
Takamoto Shigehito
Babcock-Hitachi Kabushiki Kaisha
Heller Gregory A.
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