▁ ▁Ste el ▁ ▁In ▁ste elm aking ▁o xygen ▁is ▁required ▁for ▁the ▁basic ▁o xygen ▁ste elm aking . ▁Today , ▁modern ▁basic ▁o xygen ▁ste elm aking ▁uses ▁almost ▁two ▁tons ▁of ▁o xygen ▁per ▁ton ▁of ▁steel . ▁ ▁Am mon ia ▁ ▁N it ro gen ▁used ▁in ▁the ▁Hab er ▁process ▁to ▁make ▁am mon ia . ▁ ▁Co al ▁gas ▁ ▁Lar ge ▁amounts ▁of ▁o xygen ▁are ▁required ▁for ▁coal ▁gas ification ▁projects ; ▁cry ogen ic ▁plants ▁producing ▁ 3 0 0 0 ▁tons / day ▁are ▁found ▁in ▁some ▁projects . ▁ ▁In ert ▁gas ▁ ▁In ert ing ▁with ▁nit ro gen ▁storage ▁t anks ▁of ▁ships ▁and ▁t anks ▁for ▁pet role um ▁products , ▁or ▁for ▁protect ing ▁ed ible ▁oil ▁products ▁from ▁ox id ation . ▁ ▁See ▁also ▁Louis ▁Paul ▁C ail let et ▁Cry ogen ic ▁nit ro gen ▁plant ▁Cry ogen ic ▁o xygen ▁plant ▁Gas ▁separation ▁Gas ▁to ▁liqu ids ▁Ham pson – Lin de ▁cycle ▁Indust rial ▁g ases ▁L ique f action ▁of ▁g ases ▁Li qu id ▁air ▁O xygen ▁concentr ator ▁S iem ens ▁cycle ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Sim ulation ▁of ▁air ▁separation ▁plants ▁ ▁Category : Th erm od ynamic ▁processes ▁Category : G as ▁separation ▁Category : Ind ust rial ▁processes ▁Category : Ind ust rial ▁g ases ▁Category : G as ▁techn ologies ▁ ▁de : Lu ft zer leg ung <0x0A> </s> ▁T ilen