id ation " ▁( fl am eless ▁ox id ation ) ▁is ▁the ▁origin ▁of ▁the ▁name ▁for ▁the ▁F LO X - Te chn ology ▁that ▁was ▁derived ▁from ▁the ▁effect . ▁Its ▁specific ▁advantages ▁led ▁to ▁additional ▁fund ing ▁including ▁a ▁project ▁" FL ox Co al " ▁at ▁the ▁Stuttgart ▁University ▁to ▁engineer ▁a ▁prototype ▁of ▁an ▁atom izing ▁burn er ▁for ▁coal ▁without ▁fl ame ▁re actions . ▁ ▁Technology ▁ ▁The ▁NO x ▁formation ▁is ▁specifically ▁located ▁in ▁the ▁fl ame ▁front ▁so ▁that ▁by ▁suppress ing ▁peak ▁fl ame ▁the ▁NO x ▁emission ▁can ▁be ▁reduced ▁theoret ically ▁to ▁zero . ▁In ▁the ▁practical ▁implementations ▁in ▁current ▁burn er ▁technology ▁a ▁reduction ▁of ▁ 2 0 % ▁was ▁observed ▁for ▁R hen isch ▁brown ▁coal ▁and ▁ 6 5 % ▁for ▁Polish ▁black ▁coal . ▁▁ ▁The ▁role ▁of ▁comb ust ion ▁temperature ▁in ▁NO x ▁formation ▁has ▁been ▁understood ▁for ▁some ▁time . ▁ ▁Red u ction ▁of ▁the ▁comb ust ion ▁temperature ▁in ▁gas oline ▁engines , ▁by ▁reducing ▁the ▁compression ▁ratio , ▁was ▁among ▁the ▁first ▁steps ▁taken ▁to ▁comp ly ▁with ▁the ▁U . S . ▁clean ▁air ▁act ▁in ▁the ▁ 1 9 7 0 s . ▁This ▁low ers ▁the ▁NO x ▁em issions ▁by ▁lower ing ▁the ▁temperature ▁at ▁the ▁fl ame ▁front . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁list ▁of ▁article ▁at ▁W S ▁W är met e chn ik ▁ ▁Category : Com b ust ion <0x0A>