Carbon2Polymer – Conceptual Design of a CO₂‐Based Process for the Production of Isocyanates

Abstract

The capture of carbon dioxide and its utilization as a building block in chemical synthesis aim at reducing the depletion of fossil resources and the emission of greenhouse gases. The project Carbon2Chem®‐L5 is dedicated to the development of processes using CO2 for the production of polymer building blocks for polyurethanes. In this work, a process concept is presented for the CO2‐based synthesis of diisocyanates, the main starting material in polyurethane manufacture. Key parameters for process performance are discussed.

Carbon2Polymer – Chemical Utilization of CO2 in the Production of Isocyanates

“…The values for Ru and P leaching were below the detection limit of ICP-MS (0.01 ppb) demonstrating an excellent catalyst retention. In cooperation with the Aachener Verfahrenstechnik Fluidverfahrenstechnik AVT.FVT, this system was optimized towards the production of MF in an in silico and experimental approach (see [48]…”

“…The catalysis research and early process R&D at CAT Catalytic Center is flanked by conceptual design studies based on computational process models at AVT.FVT. In particular, the down streaming of TDC and concepts for catalyst recycling are under investigations to develop an efficient overall production process (see [48]).…”

“…The generation of experimental data for process modeling and evaluation is essential for Covestro as industrial R&D partner. Moreover, the development of advanced computational tools to further improve carbamate cleavages by predictive thermodynamics is conducted by Lehrstuhl für Technische Thermodynamik (LTT), RWTH Aachen University in close collaboration with CAT Catalytic Center and Covestro (see [48]). A series of model systems based on monofunctional substrates have been evaluated in small-scale (mmol) batch reactions.…”

Carbon2Chem® – Technical Center in Duisburg

“…Furthermore, one subproject analyzes the utilization of top gases for the production of polymers in the technical center [13,14]. To ensure that the usage of top gases from steel production is possible without losses in product quality and efficiency of the reaction Covestro will install a tubular reactor in the laboratory building in Duisburg.…”

Scale‐up and Sustainability Evaluation of Biopolymer Production from Citrus Waste Offering Carbon Capture and Utilisation Pathway

“…There is extensive literature covering the environmental benefit of CO 2 polymerisation with epoxides to produce polycarbonates, thereby achieving carbon capture and utilisation (CCU), and contributing towards a mitigation of climate change . However, it is important that newly designed industrial processes to mitigate greenhouse gas emissions do not introduce new hazards .…”