EMISSIONS REDUCTION TECHNOLOGY

Class approval for first PBST SCR-HP units

7 years ago

The first PBST-branded and -built cluster-3 SCR-HP (Selective Catalytic Reduction – High Pressure) system has passed its approval test. The system’s approval certification and engine test was carried out at MAKITA’s works, under observation by class society ClassNK.

PBST's Ralph Klaunig noted the PBST SCR-HP system undercut the current IMO III NOx threshold of 3.4g/kWh by more than 1g/kWh.

The SCR system is one of four ordered for vessels fitted with MAN B&W two-stroke engines. The company confirmed that the first two systems have been delivered, while the other two systems are being sent to customers. Each of the four vessels features a MAN B&W 6S46ME-B8.5 engine, with the SCR-HP system making each vessel Tier III-compatible.

The first engine was ordered by Kanax Corporation and installed in a newly developed 39,000-dwt bulk carrier built at Shin Kurushima Toyohashi Shipbuilding Co., Ltd.

The SCR-HP system consists of the reactor – including mixing unit, urea injection lance, honeycombs and soot blowers – along with a module-based supply system, as well as the reactor’s control unit that communicates with the engine-control system.

PBST’s Ralph Klaunig – Vice President of Sales & License Turbochargers & Exhaust Gas Treatment – and MAN Energy Solutions’ Daniel Struckmeier – Head of Exhaust After-treatment – attended the class test in Japan at the invitation of Yu Makita, President at Makita Corporation.

Klaunig said: “The results from the engine shop test were quite spectacular with the PBST SCR-HP system able to undercut the currently valid IMO III NOx values of 3.4g/kWh by more than 1g/kWh, which compares very favorably with the rest of the market. Working closely with MAKITA, just a little over a year passed between landing the first order and the handing over of the engine with the SCR-HP system to the shipyard. Accordingly, I would like to thank Makita for its great cooperation in delivering such a quick turnaround.”