Anton Bijl


Faculty: Engineering Technology (CTW)

Laboratory of Thermal Engineering (ThW)

Room: HR N.215
Phone: +31-53-4892417


MSc., Mechanical Engineering at University of Twente. Thermal Engineering group, Master thesis: "Bio-oil condensation in a biomass flash pyrolysis system".

Currently involved in:

Alucha Project: “Refills”

Paper can be reused to make new paper. However due to breakdown of fibres there is a limit to its reusability and it becomes a waste stream: Waste Paper Sludge.

In a previous project together with company Alucha a new reactor is developed and patented at ThW. The reactor converts waste paper sludge into oil and useful minerals. Experiments have been performed on a cold model and based on this data a setup for high temperature tests has been designed.

Project Target: Integration of the new reactor and demonstration of an integrated pilot plant for the conversion of high ash paper sludge (62% minerals)

Plant operating at a minimum feed rate of 10kg/hr and produce 5+ kg of oil and 15+kg of minerals.

Produce mass & Energy balances for scaled setup to support feasibility of this technology.

For this project an existing pilot-plant in the Laboratory of Thermal Engineering at the UT will be converted: the new reactor will be integrated and the reactor heat supply will be altered. Three different paper sludge feeding options will be considered; top feeding, tangential feeding and screw feeding.

STW project: “High-quality biofuels from catalytic flash pyrolysis of non-edible biomass

In a previous project many different catalytic systems under different process conditions have been investigated. The most promising catalyst system turned out to be a Na2CO3/ γ-Al2O3 catalyst resulting in more than 70% de-oxygenation. The thus produced catalytic pyrolysis oil is superior to non-catalytic pyrolysis oil in almost every aspect. This catalytic oil has a much lower oxygen content (12.3 wt.%) compared to the non-catalytic oil (42.1 wt.%). This comes together with a tremendous increase in the energy density (37 compared to 19 MJ/ kg).

The main challenges for the Demonstrator project are:


upscale and demonstrate the process on pilot-plant scale and


to prove that the quality of the bio-oil is good enough for prime movers such as gas turbines and diesel engines.

For this project an existing pilot-plant in the Laboratory of Thermal Engineering at the UT will be used. This pilot-plant is designed for non-catalytic flash pyrolysis of biomass (20-50 kg/h) and needs to be modified and optimized for catalytic flash pyrolysis. Experiments will be carried out for different types of biomass and under different process conditions. Different ways of mixing biomass and the catalyst will be investigated to reduce the required amount of catalyst. The results of the pilot-plant will be used to convince commercial parties on the robustness, flexibility, efficiency and feasibility of the catalytic technology. For this purpose the produced pyrolysis oil will be combusted in a 50 kWe DG4M-1 radial gas turbine setup present at the ThW group.

Previously involved in:


Drying biomass and waste streams (pilot scale)


Ambient CO2 capture for solar fuel production (lab scale)


Waste rubber tire conversion (lab scale)