Previously, methodologies approved by the CDM Executive Board were approved for use on ACR for the registration of projects in non-Annex 1 countries or for registration of projects in the U.S. after ACR review and approval of special applicability conditions. Under ACR Standard v7.0, CDM methodologies are no longer accepted for crediting new projects on ACR. Therefore, ACR’s approval of the Clean Development Mechanism’s Methodology ACM0019 version 4, N2O Abatement from Nitric Acid Production, is withdrawn and the methodology is ineligible for crediting projects on ACR.
The methodology is applicable to project activities that introduce N2O abatement measures in nitric acid plants. Nitric Acid is used to produce products such as fertilizer and various plastics and is produced from the oxidation of ammonia via catalysis. The methodology applies to those projects using either Secondary N2O abatement or Tertiary N2O abatement. Secondary N2O abatement refers to the catalytic removal of N2O from the intermediate gas stream between the ammonia reactor and the absorption tower. Tertiary N2O abatement refers to the destruction of N2O in the tail gas from the absorption tower.