Removing H.sub.2 S from gas with recycled NMP extraction solvent
Removing H.sub.2 S from natural gas using two-stage molecular si
Removing NOX from cryogenic systems
Removing NOx, SO 2 , and Hg from a gas stream using...
Removing oxides of nitrogen from gaseous mixtures with alkali ma
Removing SO.sub.x, NO.sub.X and CO from flue gases
Removing SOx, CO and NOx from flue gases
Removing sulfur oxides from a gas
Restoring reactivity of gas sweetening oxide beds
Reverse flow reactor
Reverse-jet scrubber apparatus and method
Rolling regeneration diesel particulate trap
Rotary device for catalytic cleaning of gaseous effluents
Rotating catalytic cleaning device for polluted effluents