Karveelweg 9, 6222 NJ Maastricht. Phone: +31 (0)43 888 20 45


Track record Pulsed heat



  • 1995: inventor Mr. Jan Postmes († 2013) from Maastricht starts the development of industrialised pulsating burners in the workshop of Sotec Machinefabriek BV in Maastricht (NL)
  • 2009: founding of Pulsed Heat BV
  • 2010: construction of the testing facility and pilot plant in Maastricht (NL)
  • 2010: formal acquisition of the pulsating burner patents from Mr. Jan Postmes
  • 2012: start of project CalciPulse at Industriewater Eerbeek in Eerbeek (NL)
  • 2013: opening of 2nd office location in Eerbeek (NL)
  • 2013: deposit of patent DryFall® dryer
  • 2015: deposit of patent 4-step valorisation process for municipal sludge
  • 2015: signing of the cooperation contract for pyrolysis of sludge with partner Nettenergy BV
  • 2015: construction of a mobile skid-mounted pyrolysis unit (2 MTPD) for a customer India (ordered by Nettenergy)
  • 2015: founding of subsidiary Setiva BV exclusively servicing the municipal sludge valorisation market segment
  • 2015: completion of the CalciPulse     project in Eerbeek (NL) and start of commercialised spin-off

About Pulsed Heat

Pulsed Heat - the expert in thermal valorisation and processing of sludge and other biomass waste streams


Pulsed Heat develops, designs and constructs complete thermal processing plants and installations (often containerised or skid mounted to offer compact solutions) for drying, combusting, pyrolysing, fermentation etc. of industrial, organical aquatic biomass and residual stream (e.g. sludge, rejects, waste etc.) at which the entire transformation cycle from waste stream to valuable, recyclable raw materials and/or bio-energy streams (syngas, oil, fuel pellets etc.) is included. The international orientated company - established in 2009 - operates from 2 locations in The Netherlands (Maastricht and Eerbeek).

Pulsed Heat's expertise is focussed at the technological development of customised and complete (turnkey) systems with a very high energy efficiency for  sustainable production of raw materials and/or generation of energy from biomass. Pulsed Heat delivers unique and very compact processing installations for e.g. paper industry, food & beverage industry and process industry. In addition to developing unique and customised solutions Pulsed Heat also offers a broad range of patented and standardised components suitable for the optimisation of (existing) biomass processing systems and plants such as pulsating burners, an innovative drying system (DryFall®), a pyrolysis mini-plant and various biomass feeding and dosing systems.


Management Team

Rinus Van Praag

Managing Director Ed...

Peter Muijters

Sales & Marketing...

John Brouns

Engineering & Des...

Mark Lacroix

Technology & Deve...


LIOF participates via the LBDF fund in the optimization of biomass waste stream valorisation.

Via the Limburg Business Development Fund (LBDF), LIOF supports Pulsed Heat by providing knowhow and capital for the further development en commercialization of a new technology targeted at the sustainable treatment of biomass waste streams. Besides the capital injection from LIOF also the present shareholders and Rabobank Centraal Zuid-Limburg have financially contributed.

Publication date: 02-05-2017

Source: LIOF





Nettenergy B.V. and Pulsed Heat B.V. start a cooperation in the area of extraction of raw materials from sludge. The unique pyrolysis technology of Nettenergy enabling small(er) scale and local (on-site) application will be combined with the patented sludge dryer technology - Dryfall® - of Pulsed Heat.

The cooperation is targeted at the realisation of considerable cost savings on-site and locally at waste water treatment plants resulting from the valorisation of municipal, paper or other biological sludge streams. After thickening and drying of the sludge or the sludge residue, valuable materials and/or energy will be recovered via the pyrolysis process such as: fuel pellets, pyrolysis fuel oil, acetic acid, char and/or phosphate.

Pulsed Heat's subsidiary 'Setiva B.V.' will be responsible for the worldwide marketing and sales of this promising combination of technologies.

Date of publication: 18-05-2015

Source: Green Chemistry Campus



An exclusive approach for the municipal sludge valorisation market



The municipal sludge market is serviced exclusively by our subsidiary Setiva based on a designated integral vision with regard to the conversion of sludge as ‘waste stream’ to circular and sustainable raw materials and/or energy. Via a uniquely designed and innovative 4-step process, consisting of filtering, thickening, drying and valorisation, waste is being transformed to valuable energy streams or raw materials. The sewage water fraction, which is rich in fibre, is segregated from the main stream by means of a multiple-stage filtering system, followed by a thickening stage. The resulting product or biomass stream is used as a combustion fuel for the Dryfall® dryer. The dried material output from the dryer is converted into valuable energy streams and raw materials by means of a highly efficient and flexible pyrolysis or fermentation process. Setiva designs, manufactures and delivers complete municipal sewage water treatment units and installations including pipework, valves and fittings, proces control and instrumentation, pheripheral equipment and cabling/wiring. Skid-mounted and containerised solutions can also be offered.

Setiva offers tailor made solutions for following typical process streams in a municipal waste water treatment installation: influent sieve residue with or without fibre recovery, aerobic treatment sludge and fermentation digestate.


Strategic partnership in the area of small-scale pyrolysis of dried sludge for the industrial and municipal sludge market segments



Small-scale, efficient and flexible pyrolysis and gassification is considered by Pulsed Heat as an essential and absolutely required valorisation step as part of the transformation cycle from biomass to energy or raw materials. Via the pyrolysis process (’cracking’ in an oxygen-free environment) dried biomass materials is transformed into a combination of reaction products such as ash/char, oils, water acetic acid and synthesis gas. Appropriate dimensioning and operation of the pyrolysis unit depending on the type, quantity and composition of the biomass are essential pre-conditions for a seemless connection with the upstream filtering, thickening and drying stages. Our technology differentiates from other market solutions by a large degree of flexibility in the produced quantities of ash/char, oils, water acetic acid and synthesis gas, as a result ot which for all applications a maximum yield and level of sustainability can be guaranteed. Furthermore the so-called warm-oil efficiency of our patented technology is considerably higher than all other available competitor’s solutions. The presently available pyrolysis market solutions are either too small-scale based (demonstration development phase and not yet scaled up) or too large-scale based and consequently not interesting for on-site and small-scale applications from cost point of view.