1) 2H4+H2O---HgSO4-->С2Н5ОН
2) <span>С2Н5ОН---t>140--->C4H6+H2O</span>
<span>3)C4H6+2H2--t, Ni---><span>С4Н10</span></span>
<span><span>4)2С4Н10+13O2----->8CO2+10H2O</span></span>