About Rondane Teknologi AS

Rondane Teknologi AS is an innovative consulting company within LNG and ammonia technology for the marine industry.

Its employee, Mr Jørn M. Jonas, has more than 30 years experience from the marine field, mostly within liquefied gas carriers and liquid gas fuel systems.

The present activity includes engineering, development and design of fuel boil off gas (BOG) handling technology, LNG and ammonia fuel systems, commissioning/gassing-up, start-up of LNG fuel systems.

An ejector based BOG compressor solution for high pressure 2-stroke engine installations is introduced to the marked in 2025.

The solution, named e-BOC, is utilizing the high pressure fuel pump recirculation flow as drive for an ejector based BOG compressor. The technology is backed by both national and international patents

Different from present solutions is the complete independent flow regulation of the ejector drive flow. The method for pressure regulation of the ejector outlet flow enables to send the BOG to the generator engines during port stay and to the high pressure propulsion engine during voyage.

With e-BOC on ships with shaft generator sending BOG as fuel to the propulsion engine should be the normal operation mode.   

The e-BOC components are in the tank connection space (TCS).

Additionally, the solution can be operated in a N2 separation mode where the condensate is subcooled and the N2 is separated from the fuel condensate. This is a particularly important feature for ammonia fuelled ships.

   Both national and international patent for the ejector BOG handling solution is granted