Question

5 liters of methanol (CH3OH) and 4 liters of ethanol (C2H5OH) are mixed and burned with 4000 gram moles of air. Not all of the hydrocarbons are burned in the furnace, and both CO and CO2 are formed.

(a)

The fuels went through both complete and incomplete burning. List all the equations happening for the combustion reaction.

(b)

Calculate the theoretical oxygen that should be supplied to the furnace.

(c)

Calculate the percent excess air supplied to the furnace.

(d)

Supposeafter separation, all the feed is separated and recycled, and the gas components leaves the system, which is a gas mixture of 420 mol O2,1570 mol H2O, 650 mol CO2, and 480 mol CO. Calculate the CO composition on a wet and dry basis.

Answer 1

Soth methanod CCH30H) 5 Irn mand methanol 3955 gm meth an8955 d ะ = 133.5g mele 3 2 チ8g XYメ10 3156m 315 6 man 빳 ethanol = ethan mole 840 m met, 알 supplied . 31 60 me h etham a) un Cem Combustion omethanot 염、염

Comburtion 3 544 n.rechet- ey ifneeegt снз он nended mob s rb

wel bard freahom 420 15 70 +650 +480 3 bo 076 Dry baris 0:1b