Denitrification process

Details Denitrification process Denitrification process

C - Chemistry, Metallurgy

10

G

196/227

C10G 45/02 (2006.01) C10G 65/04 (2006.01)

Patent

CA 1106790

DENITRIFICATION PROCESS Abstract of the Disclosure A nitrogen containing feedstock is hydrodenitrified by passing the feed through at least two hydrodenitrification zones, with ammonia produced in the hydrodenitrification being purged from the system prior to the last hydrodenitrification zone to maintain a low ammonia partial pressure in the last hydrodenitrification zone. The ammonia is prefer- ably purged by stripping ammonia from the liquid portion of the effluent withdrawn from the next to last hydrodenitrification zone, Improved denitrification is obtained by maintaining a low ammonia partial pressure in the last hydrodenitrification zone. -1-

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