Hyundai develops high pressure SCR system

摘要

Hyundai Heavy Industries (HHI) has announced production of its first High Pressure Selective Catalytic Reduction (HP SCR) system to reduce harmful NOx emissions from two-stroke engines. The HP SCR, the fruits of an eighteen-month research and development project, can reduce emissions by up to 99% and therefore complies with IMO NOx Tier Ⅲ requirements which came into effect in January 2016. To comply with the latest limits on NOx emissions while running on conventional two-stroke engines either an SCR or exhaust gas recirculation (ECR) system must be used. SCRs can be low or high pressure systems; the difference being where the reactor is located. In a high pressure system it is between the engine exhaust valves and the turbocharger turbine inlet, providing a compact and efficient system without compromising engine performance or impacting fuel consumption.