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Chementator Briefs

By Gerald Ondrey |

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‘Green methanol’ As part of the “Power-to-Methanol — Green Methanol” project, the Fraunhofer Institute for Solar Energy Systems (Freiburg, Germany; www.ise.fraunhofer.de) recently commissioned a miniplant for synthesizing methanol from H2 and CO2. Featuring a measurement technique with high temporal and spatial resolution, the setup enables research on methanol synthesis, among other things, within the framework of power-to-liquid (PtL) processes on an industrial scale. Here, the main focus of the research is on dynamic reactor operation and unconventional gas compositions using H2 produced by electrolysis and gas streams containing CO2. Conventional production processes based on fossil feedstock have reached technical maturity over the past decades, but have large CO2 emissions. “In contrast, methanol synthesis in PtL processes offers the potential to bind CO2 from biomass, for example, and to reuse it,” explains Achim Schaadt, head of the Thermochemical Processes department at Fraunhofer ISE. A number of questions still need to be answered before this process can be implemented on an industrial scale. For example, a high CO2 content in the synthesis gas lead to accelerated aging of the catalyst and to lower chemical…
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