Skip to main content

Hong Kong implements emission reduction

Manufacturer of emissions reduction systems, Eminox, is to take part in a US$4.5 million project to reduce NOx pollution in Hong Kong. The scheme will see buses retrofitted with the latest in emission control technology to help make Hong Kong a safer environment to live and work. Hong Kong’s Environmental Protection Department (EPD) aims to upgrade 1,400 buses with retrofit selective catalytic reduction (SCR) technology to dramatically reduce NOx. A pre-qualification programme is currently taking place,
January 30, 2015 Read time: 2 mins
Manufacturer of emissions reduction systems, Eminox, is to take part in a US$4.5 million project to reduce NOx pollution in Hong Kong. The scheme will see buses retrofitted with the latest in emission control technology to help make Hong Kong a safer environment to live and work.

Hong Kong’s Environmental Protection Department (EPD) aims to upgrade 1,400 buses with retrofit selective catalytic reduction (SCR) technology to dramatically reduce NOx.  A pre-qualification programme is currently taking place, in which Eminox, as one of four suppliers, has retrofitted 23 buses with SCR systems, effectively achieving a full SCRT system. The company says the systems are delivering NOx reduction well beyond the 60 per cent scheme requirement.

Steve Rawson, head of retrofit engineering at Eminox, commented: “We are delighted to be involved with such a high-profile international project to tackle on-street pollution in Hong Kong. By retrofitting the existing fleet of buses, we can improve air quality in an area which urgently needs attention – without the high costs associated with replacing an entire fleet. Our SCR technology delivers proven real world NOx reduction that can make a real difference to air quality.”

In a bespoke project approach, engineers monitored the temperature at which the buses were operating and measured the packaging envelope using laser scanning, then designed the system to exceed performance targets. Eminox produced different system designs to fit the limited space envelope on a variety of buses.

Fitting of the systems by Eminox applications engineers began in October 2014 and spanned a period of 32 days. Real-world NOx reduction is continuously monitored using sensors fitted to the buses and will continue over the 12 month trial period.

Related Content

  • Intertraffic Awards 2022: shortlist announced!
    February 4, 2022
    Winners will be revealed at the opening ceremony of Intertraffic Amsterdam in March
  • Dynamic Message Signs : Don’t replace, refurbish and upgrade
    August 12, 2015
    Refurbishing old dynamic message signs can save money and increase technical capabilities as David Crawford discovers. Evidence is growing on both sides of the Atlantic of the scope for retrofitting old or technically out-of-date dynamic message signs (DMS) with new electronic equipment, to save on the costs of installing full-scale replacements. In the last four months of 2014, a number of US states progressed programmes that achieved savings of more than US$1.75 million (€1.56million).
  • Rental e-scooter trials begin in UK
    July 6, 2020
    Privately-owned scooters remain illegal on UK roads
  • Birmingham CAZ is green for go
    July 26, 2021
    For urban authorities worldwide, the health of residents is racing up the political agenda. Ben Spencer looks at how one city - Birmingham, UK - has established its own Clean Air Zone and is investing in alternative-fuel vehicles and public transport incentives