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Reaction Engineering and Applied Thermochemical Conversion Laboratory
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Schematic of the co-gasification experiment: a mix of biomass powder, sawdust and biochar is fed from a hopper into the reactor with the gasifying agents, tar is collected below the reactor, and the gas passes a cold trap into a gas bag. Figure: Josh Felix Rajagukguk, 2026.

Biomass and waste gasification

Fluidized-bed gasification experiments and CPFD/CFD simulation: syngas quality, tar, staged oxygen, co-gasification with biochar, integration with industrial processes.

Current topics

  • CO₂/O₂-blown bubbling fluidized-bed gasification with staged oxygen injection
  • Co-gasification of biomass and biochar for high-quality syngas
  • CPFD simulation of circulating fluidized-bed gasifiers
  • Gasification integrated with blast furnaces and coal-fired power plants

People, theses and publications

(a) Methane pyrolysis experiment: methane and nitrogen are metered through rotameters into a fluidized-bed reactor with a temperature controller; the gas passes a scrubber and a cold trap to a quadrupole mass spectrometer, a sampling bag or the exhaust. Figure: Inggar Pratiwi, 2026. (b) Electrified tar reforming: a model tar and methane are heated and reformed in a catalytic electric tar reformer, a Pd-alloy membrane separates pure hydrogen, and electrochemical Fischer–Tropsch synthesis turns the gases into short- and long-chain hydrocarbons; labels in Indonesian. Figure: Aldricho Alpha Pollardo, 2026.

Hydrogen production and electrified reactors

Joule-heated reactors, electrified tar reforming, methane pyrolysis to turquoise hydrogen and solid carbon, bio-oil reforming over biochar catalysts.

Current topics

  • Joule-heated reactors with SiSiC foam heating elements
  • Electrified tar reforming to syngas
  • Methane pyrolysis to turquoise hydrogen and solid carbon
  • Bio-oil reforming over biochar catalysts

People, theses and publications

Integrated Fischer–Tropsch SAF production: hydrogen from PEM electrolysis, chemical-looping reforming or ammonia cracking, and CO₂ from direct air capture, feed reverse water-gas shift, Fischer–Tropsch synthesis, hydrocracking-isomerization and two distillation columns that separate SAF, naphtha and diesel. Figure: Alfian Satria Nugraha, 2026.

Sustainable aviation fuel and Power-to-Liquid

Fischer–Tropsch SAF routes from gasification and electrolysis hydrogen: process simulation, techno-economics and life-cycle assessment.

Current topics

  • Fischer–Tropsch SAF from multi-scenario hydrogen sources
  • Life-cycle and techno-economic comparison of SAF routes
  • Syngas quality for SAF synthesis from biomass gasification
  • Electrochemical Fischer–Tropsch for low-carbon liquid fuels

People, theses and publications

CFD result: static temperature (K) on a vertical section of a pulverized-coal boiler, from a study of raw and torrefied sawdust co-firing. Simulation: Aryo Satya Wirawan, 2026.

Co-firing and carbon capture in power plants

CFD of biomass co-firing in pulverized-coal boilers, syngas–natural gas co-firing, retrofitting carbon capture and gasification into existing coal plants.

Current topics

  • CFD of biomass co-firing in pulverized-coal boilers
  • Syngas–natural gas co-firing and tar effects
  • Carbon capture retrofits for subcritical coal plants
  • Techno-economics of biomass-waste gasification for co-firing

People, theses and publications

Schematic of the pyrolysis setup: biomass feedstock is heated in an electric pyrolyzer with temperature control, the vapours are condensed into bio-oil, and the biochar is collected. Figure: Bram Wiratma, 2026.

Pyrolysis and biochar

Pyrolysis of biomass and waste; biochar as catalyst, carbon material and battery-anode precursor; carbon nanotubes from plastic waste.

Current topics

  • Biochar production by pyrolysis and carbonization
  • Biochar as a catalyst for bio-oil reforming
  • Biochar-derived battery-anode precursors
  • Carbon nanotubes from plastic-waste pyrolysis

People, theses and publications