C3H8 --to,xt--> CH4 + C2H4
_____________(X1)_____(Y1)
2CH4 + O2 --to,p,xt--> 2CH3OH
(X1)_______________(X2)
2CH3OH --xt,to--> CH3-O-CH3
(X2) __________________(X3)
C2H4 + HCl → C2H5Cl
(Y1)___________ (Y2)
C2H5Cl + KOH → C2H5OH + KCl
(Y2)______________(Y3)_________