Question

Which of the folllowing are important for industrial fuels?

• A. Water gas
• B. Producer gas
• C. Dry ice
• D. None of the above

Answer 1

Answer: (A), (B)

Producer gas

Water gas and producer gas are very important industrial fuels.
Water gas is a mixture of CO and $H_2$ and producer gas is a mixture of CO and $N_2$.
Water gas is prepared by passing steam over hot coke.
$C\left(s\right)+H_{2}O\left(g\right)\stackrel{473-1273K}{⟶}CO\left(g\right)+H_2\left(g\right)$

Producer gas is prepared by passing air over hot coke instead of steam
$2C\left(s\right)+O_2\left(g\right)+4N_2\left(g\right)\stackrel{1273K}{⟶}2CO\left(g\right)+4N_2\left(g\right)$