Photochemical reactor

Photoelectrochemical air disinfection

Photoelectrochemical device containing a quantum confined silico

Photon-enhanced neutral beam etcher and cleaner

Photoreactor with self-contained photocatalyst recapture

Photosensitive cell for the decomposition of water

Physico-chemical conversion reactor system with a fluid-flow-fie

Pipe shaped reformer having rugged internal surface

Plant for purifying spent oil

Plant for the conversion of olefinic C.sub.4 and C.sub.5 cuts to

Plant for the production of urea in reaction spaces with differe

Plant for urea production

Plasma assisted catalytic treatment of gases

Plasma assisted reactor

Plasma based trace metal removal apparatus and method

Plasma discharge reactors for the preparation of bioactive...

Plasma dry scrubber

Plasma enhanced gas reactor

Plasma generating electrode and plasma reactor

Plasma generating electrode and plasma reactor