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Which material of construction is used in reactor steels(hydrogenation of coal) to avoid hydrogen embrittlement?(a) Tool steel(b) Chromium-molybdenum steel(c) Stainless steel(d) Carbon steelI have been asked this question by my college director while I was bunking the class.This intriguing question originated from Natural Products in chapter Natural Products of Chemical Technology

Answer»

Right choice is (B) Chromium-molybdenum steel

To EXPLAIN: Chromium-molybdenum steels are used as MATERIAL of CONSTRUCTION in reactor steels to avoid hydrogen EMBRITTLEMENT. Coal must be fed in powdered form into the hydrogenators reactor.



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