# Bioethanol and Carbon dioxide

Their prices have moved together.

Source page: https://www.materialinsights.org/links/bioethanol-and-carbon-dioxide/

[Bioethanol](https://www.materialinsights.org/energy/bioethanol/) (chemical) and [Carbon dioxide](https://www.materialinsights.org/chemicals/carbon_dioxide/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: by-product source

*Cost and price · Weak · Both ways*

Fermentation at ethanol plants gives a pure CO2 stream, a key source in the US and Brazil. The ethanol index moves with the CO2 index at only 0.05 monthly and 0.22 yearly, because CO2 prices are fixed in long supply contracts.

- **0.05** monthly change correlation
- **0.22** 12-month change correlation
- **-0.03** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.