Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Including recovery of organic by-product
Patent
1993-03-29
1995-09-19
Chin, Peter
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Including recovery of organic by-product
162 29, 162 301, 162 51, 159 473, 203 92, 423233, 423234, D21C 1106
Patent
active
054508924
ABSTRACT:
This invention relates to an alkaline scrubber for condensate stripper off-gases. In particular, this invention relates a process for selectively removing hydrogen sulfide and methyl mercaptan from a gas stream containing these compounds and methanol. Such gas streams are commonly generated during pulp and paper production.
REFERENCES:
patent: 2747962 (1956-05-01), Heitz et al.
patent: 4137134 (1979-01-01), Suominen et al.
patent: 4417075 (1983-11-01), Stogryn
patent: 4431617 (1984-02-01), Farin
patent: 4649032 (1987-03-01), Snavely, Jr. et al.
patent: 4872950 (1989-10-01), Andersson et al.
I. B. Douglass et al., "A Study of Methyl Mercaptan and Dimethyl Sulfide Formation in Kraft Pulping," TAPPI, vol. 49, No. 8 (Aug. 1966).
T. T. C. Shih et al., "Methyl Mercaptan Vapor-Liquid Equilibrium in Aqueous Systems as a Function of Temperature and pH," TAPPI, vol. 50, No. 12 (Dec. 1967).
A. H. Nissan, Basic Principles of Pulp and Paper (1984).
R. W. Rousseau et al., "Analyzing Chemical Absorbers and Strippers," Chemical Engineering (Jul. 18, 1988).
K. Ellis, Ring Formation in a NCG Burning Lime Kiln, a paper presented at the 1989 Environmental Conference.
Y. Hwang et al., "Steam Stripping for Removal of Organic Pollutants from Water. 1. Stripping Effectiveness and Stripper Design," Ind. Eng. Chem. Res., vol. 31 (1992).
Y. Hwang et al., "Steam Stripping for Removal of Organic Pollutants from Water. 2. Vapor-Liquid Equilibrium Data," Ind. Eng. Chem. Res., vol. 31 (1992).
S. Q. Hassan et al., "Steam Stripping and Batch Distillation for the Removal and/or Recovery of Volatile Organic Compounds . . . ," J. Air Waste Manage. Assoc., vol. 42 (1992).
B. J. Skrifvars et al., Chemical Reaction Sintering as a Cause for Lime Kiln Rings, a paper presented at the 1992 International Chemical Recovery Conference.
H. Tran et al., Mechanisms of Ring Formation in Lime Kilns, a paper presented at the 1992 International Chemical Recovery Conference.
Arvi Ronnholm, "Steam Stripping removes BOD Compounds from Condensate of Cont. Pulp Mill", Pulp & Paper Int., Feb. 1974, pp. 45-49.
Allied-Signal Inc.
Chin Peter
Holden Jerry J.
McFarland James W.
Nguyen Dean T.
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