What are the main emission sources in acrylonitrile production?
Acrylonitrile is made by reacting propylene, ammonia and air over a catalyst. Part of the carbon leaves as CO2 and as by-products such as hydrogen cyanide and acetonitrile, which are often burned. Count that process and off-gas CO2 with fuel in Scope 1.
Scope 1
- CO2 formed in the reactor and vented from the absorber.
- By-products and off-gas burned in an incinerator or boiler.
- Fuel for any supplementary firing.
Steam export
The reaction gives off heat, and many plants export steam. Report the steam sent out as a separate figure; do not subtract it from your Scope 1.
Upstream
Propylene and ammonia are bought in and sit in Scope 3 Category 1. IPCC 2006 Volume 3 covers acrylonitrile under petrochemicals.
What Senseible does here
Senseible reads bills, fuel invoices and production records into dated, fingerprinted records, so the figure you send a buyer can be traced to its documents.
Sources: IPCC 2006 Guidelines for National Greenhouse Gas Inventories, GHG Protocol Corporate Standard, GHG Protocol Corporate Value Chain (Scope 3) Standard
Last reviewed 2026-10-22.