Skip to main content

Reduced asphalt plant smoke emissions from Ammann

Ammann says its blue smoke capture system reduces the emissions that result while loading asphalt mix to trucks. The Ammann Blue Smoke Treatment (BST) is a cost-effective solution that does not require expensive confinement equipment and is inexpensive to operate.
April 4, 2024 Read time: 2 mins
Ammann claims reduced smoke emissions from plants with its BST system

The BST system captures fumes that previously would have escaped during loading and redirects them to a multi-stage filtration system. The BST uses the indirect aspiration of Blue Smoke that uses the thermic force of the gases to reduce the energy absorption, the power installed and the volume flow.     The filters remove the oily particles during multiple stages, ensuring high efficiency. After filtering, the system reroutes the remaining gases to the combustion chamber, lowering costs as the captured air is already heated.

The condensed oil accumulates in the filtration system and can be recycled. The BST system enables a steady flow rate at the chimney without increasing the plant gas flow at the chimney. No new emission authorizations are necessary.

“Newer, stricter regulations are requiring that steps be taken to mitigate these fumes, so the availability of BST is well-timed,” said Stampfli Philipp (AMMANN Global Head of Process Technology). “In addition to sustainable benefits, we expect it simplify the process for obtaining permits and improve relations with neighbours. It’s important to remember that BST removes fumes that are visible. The air won’t just be cleaner. It will look cleaner and smell cleaner.”

The BST can be installed on plants manufactured by Ammann or competitors. A plant owner does not need to purchase a new plant to benefit from this technology. Adding BST to an existing plant allows the owner to continue using the plant while meeting tightening emissions standards.

It reduces blue smoke during loading but does not reduce plant capacity. There is no increase of gas flow at the chimney and no new emission authorisation is necessary. It does not require expensive confinement systems and reduces costs by re-using air that has already been heated. It can help existing plants meet tightening emissions standards and ease the process of gaining permits for new plants. In addition it allows recycling of the trapped oil, is easy to service by cleaning the filters and Features a filtration system that is laser welded and hydraulically sealed to prevent leaks.

For more information on companies in this article

Related Content

  • European regulations for engine emissions are getting tougher
    January 4, 2013
    Emissions remain the focus for engine development but equipment manufacturers want clarity from regulators. Emissions remain a major challenge for the off-highway construction equipment market. The EU has tough targets in this respect and its objective is an overall reduction of CO2 emissions of 80-95% by the year 2050, compared to 1990 levels. There is considerable research already underway on how to reduce fuel consumption and to help ensure the security of energy supply. A number of industry sectors, suc
  • Powertrain innovations delivering cleaner solutions
    May 10, 2018
    The push towards cleaner-running driveline developments from engine firms is continuing - Mike Woof writes. Sophisticated driveline developments are being seen right across the engine and drivetrain segment, with new low emission technologies being unveiled. High performance and extended service intervals are claimed, while tailpipe emissions have been reduced to meet the coming EU Stage V and latest US Tier 4 Final requirements. But different firms are taking different routes to delivering cleaner tailp
  • Ammann’s green approach to construction
    June 18, 2025
    New technologies from Ammann will deliver green solutions for construction.
  • Asphalt plans silos increase efficiency, reduce waste
    April 10, 2012
    A Colombian contractor tackles specifications for asphalt road work with Astec equipment.Award-winning Colombian contractor MHC has upgraded its Astec Portable Double Barrel plant to handle highway and other projects. The plant, installed in Bucaramanga, equipped with two RAP [recycled asphalt pavement] bins, a Double Barrel Green System, and one New Generation silo was bought by MHC in 2009. It has now received a second silo and a truck scale extension.