What drives emissions at an EDC and vinyl chloride plant?
Ethylene and chlorine make EDC, which is cracked in fired furnaces to vinyl chloride. Furnace fuel is the largest direct source, with vent gas incineration and oxychlorination off-gas adding CO2. Chlorine's electricity sits upstream in Scope 3 unless made on site.
Scope 1
- Fuel for the EDC cracking furnaces.
- Vent gas and liquid waste incinerators.
- CO2 from the oxychlorination step.
Scope 2 and 3
- Electricity for compressors and utilities.
- Chlorine, from electrolysis, bought in or made in a chlor-alkali unit on site.
- Ethylene feedstock.
Method
IPCC 2006 Volume 3 covers EDC and vinyl chloride under petrochemicals. If chlorine is made on site, its electricity becomes your Scope 2 and should be shown as its own line.
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.