Credit to the owner of the video. This is not mine, but in my humble opinion it is worth sharing because the topic here is about biobutanol. A biofuel that was said to be a 1:1 replacement for spark-ignited engines. Biobutanol is better than bioethanol because its 4-carbon atom offers more calorie than the 2-carbon atom of the ethanol. However, biobutanol gives off more CO2 per mole compared to ethanol.
