Dutch Scientists Create Safer Method to Produce Key Chemical Building Block From Agricultural Waste
Wageningen, Thursday, 2 April 2026.
Wageningen University researchers developed an electricity-powered process that transforms agricultural waste into furanon, eliminating toxic bromine from production.
Revolutionary Breakthrough in Green Chemistry
This innovation represents a significant advancement in agritech and green chemistry, as researchers have successfully eliminated one of the most hazardous substances from chemical manufacturing processes [1]. The development focuses on producing 2(5H)-furanon, a versatile chemical building block that serves as a crucial precursor for manufacturing pharmaceuticals, plastics, and flavor and fragrance compounds [1][2]. Dmitri Pirgach, a PhD candidate at Wageningen University & Research, led the breakthrough by creating this valuable compound from furfural, a liquid extracted from sugars found in plant residues such as agricultural waste [1][2].
Eliminating Toxic Chemicals Through Electrochemical Innovation
The traditional production method for furanon required the use of liquid bromine, a highly toxic red-brown substance that poses significant safety risks during storage and transportation [1][2]. The new electrochemical process replaces this hazardous material with relatively harmless bromide salts, such as sodium bromide [1][2]. When electrical current flows through the reactor, the bromide salt oxidizes at the electrode to form bromine, which then reacts with water to oxidize furfural and initiate the chemical sequence that ultimately produces 2(5H)-furanon [1][2]. As Professor Harry Bitter, the senior author of the study, explains: “The bromine forms only when required,” which means chemical plants would no longer need to store or transport stocks of this dangerous liquid, significantly improving process safety [2][3].
Technical Advantages of the Undivided Cell Design
Previous attempts at electrochemical furanon production utilized divided cells with membranes separating two compartments, but these systems proved costly and energy-intensive [1][2]. Pirgach chose to work with an undivided electrochemical cell, eliminating the expensive membrane barrier [1][2]. Professor Bitter notes that membranes can be viewed as “fine-meshed sieves where ions must be pressed through, and that costs extra electricity” [1]. While the undivided design creates challenges because all substances exist in the same space and can react with each other and both electrodes, potentially creating unwanted byproducts, the research team addressed this issue by adding a small amount of sulfuric acid to the reaction mixture [1][2]. This modification helps control the reaction conditions and reduces the formation of undesired substances, making the process more reliable [1][2].
Energy Efficiency and Future Industrial Applications
The energy consumption of this new method remains remarkably low, with the laboratory reaction consuming less than 0.005 of the electricity needed by a kettle to boil water [1][2]. Despite producing only 0.3 milliliters of furanone in their experiments, the researchers believe this electrochemical approach holds substantial promise for sustainable chemical production [1]. Daan van Es, a co-author and expert in applied, sustainable, and circular chemistry at Wageningen, emphasizes the potential: “This is a great combination of using renewable electricity with renewable raw materials to create building blocks for circular products” [2][3]. The mild reaction conditions and the possibility of local production in the Netherlands are particularly relevant for developments in the European chemical industry [2][3]. However, van Es acknowledges that “there is still a long way to go before we can apply this industrially, but it has a lot of potential” [2][3]. The next steps involve optimizing and scaling up the process for industrial applications, as Professor Bitter explains: “This is typically fundamental research. You start small and try to understand how the chemistry works exactly. Then you can start thinking about applications on a larger scale” [1].