Gas phase reaction of methanol (A) ?in water forming formaldehyde and hydrogen at 300 ?C and 101 ?kPa (assuming both are constant) ?with the reaction CH3OH -> ?HCHO + ?H2. The reaction takes place in a Plug Flow Reactor (PFR) ?without a catalyst. If the reaction proceeds first order with a value of kA = 0.53 /sec. ?Determine: a. Is the reaction exothermic or endothermic? Prove it! b.Determine the reactor volume to achieve 85% methanol conversion where the mol flow rate of the feed is 200
kmol/sec Data known:
R= 8.314 ?Kpa.m3/kmol.K
\Delta HF HCHO= -115,9
KJ/mol ; ?
\Delta Hf H2 =0 kj/mol
\Delta HfCH3OH= 201,2 ?Kj/mol