Development and manufacture of modular flow chemistry reactors, photocatalysts and photoreactors for green hydrogen and continuous chemistry
Redeem Solar Technologies GmbH
8020 Graz (Austria)New on Amplifa
About Redeem Technologies
Redeem Technologies (Redeem Solar Technologies GmbH) was founded in 2023 in Graz, Austria and develops compact, modular flow chemistry reactor systems for research and industry. The portfolio comprises more than ten reactor configurations – including Serpentine, Arrow, Micro, Split, Bubble, Packed-Bed, See-Through, Membrane and Electro-Flow reactors as well as photoreactors for photocatalytic water splitting. The reactors are made of stainless steel, Hastelloy, copper, PEEK and anodized aluminium; optical windows are available in borosilicate glass, quartz, ITO and sapphire. In addition to reactors, the company offers solid-state photocatalysts (including Pt/TiO₂, Rh/SrTiO₃, C₃N₄) as powders, pellets, coated plates or foams as well as a catalyst screening kit, in-house testing, consulting, installation and after-sales support. Applications range from pharmaceutical synthesis and specialty chemistry to photocatalytic, solar-driven hydrogen production from water, ammonia or LOHCs. Customers come, among others, from Austria, Germany, France, Italy, Spain, Belgium, Sweden, Finland, the Czech Republic, the United Kingdom, Australia and the UAE; more than 30 universities worldwide use the systems.
- Site
- Graz, Austria
- Processes
- Continuous flow chemistry (Flow Chemistry), Photochemical reactions in flow, Electrochemical reactions in flow, Photocatalytic water splitting for hydrogen production, Ammonia cracking, Dehydrogenation of liquid hydrogen carriers, Solid-state photocatalysts (powders, pellets, coated plates, coated foams), In-house testing of processes
- Materials
- Stainless steel (Stainless steel), Hastelloy, Copper (Cu), PEEK, Anodized aluminium (Anodized Al), Borosilicate glass, Quartz, ITO
- Founded
- 2023
- Industries
- Pharmaceutical industry, Specialty chemistry / Fine Chemicals, Petrochemicals, Energy generation, Mobility, Aerospace
- 01
Design and 3D modelling (CFD, process simulation)
- 02
Manufacture of reactor modules from stainless steel, Hastelloy, Cu, PEEK or
- 03
Production of solid-state photocatalysts (powders, pellets, coated
- 04
In-house testing of processes
- 05
Consulting, installation and after-sales support
- 06
Webinars and training
Locations
Graz
ATHeadquarters, development, engineering and in-house testing
- Materials
- Stainless steel, Hastelloy, copper, PEEK, anodized aluminium, borosilicate glass, quartz, ITO, sapphire
- Serpentine Flow Reactor (1.74–8.70 mL; -20/200 °C, up to 300 °C on request; up to 12 bar)
- Arrow Flow Reactor (static mixing, 2.05 mL)
- Micro-Flow Reactor (0.81 mL)
- Split-Flow Reactor (1.36 mL)
- Bubble Flow Reactor (1.47 mL)
- Packed-Bed Flow Reactor (~1.3–5.4 mL; up to 340 °C)
- See-Through photochemical flow reactor (0.26/13.19 mL; illuminated on both sides)
- Membrane Flow Reactor
- Photo Reactor / Photo-Panel
- Electro-Flow Reactor
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Continuous flow chemistry (Flow Chemistry)Engineering | – | – | – | – | – |
| Photochemical reactions in flowEngineering | – | – | – | – | – |
| Electrochemical reactions in flowEngineering | – | – | – | – | – |
| Photocatalytic water splitting for hydrogen productionEngineering | – | – | – | – | Water, Ammonia, LOHCs |
| Ammonia crackingEngineering | – | – | – | – | Ammonia |
| Dehydrogenation of liquid hydrogen carriersEngineering | – | – | – | – | LOHCs |
| Solid-state photocatalysts (powders, pellets, coated plates, coated foams)Engineering | – | – | – | – | Pt/TiO₂, Rh/SrTiO₃, C₃N₄ |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Serpentine Flow Reactor | Redeem Technologies Serpentine | – | Volume 1.74–8.70 mL; temperature -20/200°C (up to 300°C on request); pressure up to 12 bar; | – | Graz, Austria |
| Arrow Flow Reactor (static mixing) | Redeem Technologies Arrow | – | Volume 2.05 mL; temperature -20/200°C (up to 300°C on request); pressure up to 12 bar | – | Graz, Austria |
| Micro-Flow Reactor | Redeem Technologies Micro-Flow | – | Volume 0.81 mL; temperature -20/200°C (up to 300°C on request); pressure up to 12 bar | – | Graz, Austria |
| Split-Flow Reactor (split-and-recombine) | Redeem Technologies Split-Flow | – | Volume 1.36 mL; temperature -20/200°C (up to 300°C on request); pressure up to 12 bar | – | Graz, Austria |
| Bubble Flow Reactor (gas-liquid) | Redeem Technologies Bubble | – | Volume 1.47 mL; temperature -20/200°C (up to 300°C on request); pressure up to 12 bar | – | Graz, Austria |
| Packed-Bed Flow Reactor | Redeem Technologies Packed-Bed | – | Volume ~1.3–5.4 mL (depending on packing); temperature -20/340°C; pressure up to 12 bar | – | Graz, Austria |
| See-Through photochemical flow reactor (illuminated on both sides) | Redeem Technologies See-Through | – | Volume 0.26/13.19 mL; temperature -20/200°C; pressure up to 12 bar; irradiated area 52.76 cm² | – | Graz, Austria |
| Membrane Flow Reactor (reaction + separation) | Redeem Technologies Membrane | – | – | – | Graz, Austria |
| Photo Reactor (photocatalysis panel, green hydrogen / photochemicals) | Redeem Technologies Redeem Photo Reactor / Photo-Panel | – | – | – | Graz, Austria |
| Electro-Flow Reactor | Redeem Technologies | – | – | – | Graz, Austria |
Additional services
History
- 2023
Foundation of Redeem Solar Technologies GmbH in Graz, Austria
- 2025
Participation in the SAHARA, KAT-PAWS and Light AI Clean projects; exhibitor at DECHEMA ReactEng 2025 and the 5th Alpine Winter Conference