C->CH4
C+2 H2=CH4
C2H2->CH4
C2H2+3 H2=2 CH4
CH4->CO2
CH4+2 O2=CO2+2 H2O
CH4->CH3Cl
CH4+Cl2=CH3Cl+HCl
CH3Cl->C2H6
2 CH3Cl+2 Na=C2H6+2 NaCl
C2H6->CO2
2 C2H6+7 O2=4 CO2+6 H2O
C->CH4
C+2 H2=CH4
C2H2->CH4
C2H2+3 H2=2 CH4
CH4->CO2
CH4+2 O2=CO2+2 H2O
CH4->CH3Cl
CH4+Cl2=CH3Cl+HCl
CH3Cl->C2H6
2 CH3Cl+2 Na=C2H6+2 NaCl
C2H6->CO2
2 C2H6+7 O2=4 CO2+6 H2O