Fertiliser Technology
Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by

Adsorption on palladium
Cryogenic operations (low temperature cooling)
Absorption (using ethanolamine or pyragalloll solution)
None of these

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Fertiliser Technology
I argest capacity nitrogenous fertiliser plants (2700 tons of NH₃ per day) (2 Nos) in India are located at

Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)
Korba (M.P.) and Talchar (Orissa) both under FCI
Haldia (W.B) and Namrup (Assam) both under HFC
Talchar (Orissa) and Ramagundam (A.P.) both under FCI

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