Gas: heating and illuminating – Processes – Fuel mixtures
Reexamination Certificate
2009-01-27
2010-06-15
Neckel, Alexa D (Department: 1795)
Gas: heating and illuminating
Processes
Fuel mixtures
C048S061000, C060S039120, C060S780000, C261S128000
Reexamination Certificate
active
07736403
ABSTRACT:
Disclosed is a process for humidifying syngas to achieve a water to carbon monoxide molar ratio in the product syngas within a desired range and in which the molar ratio which can be varied over time in response to changes in downstream syngas requirements. The raw syngas is produced by reacting a carbonaceous material with oxygen, water, or carbon dioxide and can be combined with a diluent to produce a diluted syngas stream which can be cooled and contacted with liquid water to give a humidified syngas. The H2O:CO molar ratio of the humidified syngas may be adjusted in response to time-varying downstream syngas requirements by changing the amount and/or temperature of the diluent that is combined with the raw syngas stream, by adjusting quench and heat exchange conditions, or a combination thereof. The application of the process to the coproduction of chemicals and power are also disclosed.
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Eastman Chemical Company
Graves, Jr. Bernard J.
Merkling Matthew J
Middlemas Eric D.
Neckel Alexa D
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