Related Links

NO_x Recovery

NORAM's NO_x recovery technology is an integral part of NORAM's nitration vent management philosophy. It is a technology that can also be retrofitted into existing facilities.

This technology is currently in operation in three world-scale nitration plants.

Process Description
The NORAM process for the recovery of NO_x gases uses a patented high pressure or atmospheric pressure absorption system. NO_x gases are recovered in the form of nitric acid, with concentrations of up to 15 wt%, which is typically recycled back to the reactors.

This proven technology reduces NO_x emission to less than one kilogram per hour on an industrial scale nitration facility.

Key Features and Benefits
The NORAM NO_x recovery process differs from conventional technology in a number of ways, it leads to

•  a reduction of caustic consumption by eliminating the traditional reactive absorption
•  a reduction of nitrate and nitrite emission in the liquid effluent of the plant
•  recovery of nitric acid value