Gas separation: processes – Solid sorption – Including reduction of pressure
Reexamination Certificate
2006-09-27
2011-12-13
Hill, Jr., Robert J (Department: 1776)
Gas separation: processes
Solid sorption
Including reduction of pressure
C095S128000, C095S129000, C423S239100
Reexamination Certificate
active
08075672
ABSTRACT:
Hydroxylamine is formed in a reactor through a partial hydrogenation of nitric oxide gas (NO) with hydrogen gas (H2) in an aqueous medium with nitrogen gas (N2) as an inert gas. The formation of the hydroxylamine forms nitrous oxide gas (N2O). The gases and the water vapor are flowed away from the reactor in a vent gas stream enabling recycling of the gases. The N2O is removed from the vent gas stream to reduce flammability. Once the N2O is removed, the NO, H2, and N2are recycled and re-used in the reactor to form additional hydroxylamine. The N2O removed from the vent gas stream is of high purity and can be commercially sold or economically discarded.
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Chan William Stewart
Knaebel Kent S.
Musselman Wayne David
Seagraves Thomas
Shin Heungsoo
BASF SE
Hill, Jr. Robert J
Howard & Howard Attorneys PLLC
Jones Christopher P
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