{"id":38316,"date":"2024-03-26T16:38:38","date_gmt":"2024-03-26T16:38:38","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&p=38316"},"modified":"2025-09-11T20:34:28","modified_gmt":"2025-09-11T20:34:28","slug":"anwendung-des-massenstroms-fur-das-neue-verfahren-der-co2-hydrierung","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/applying-mass-flow-for-novel-process-of-co2-hydrogenation\/","title":{"rendered":"Anwendung des Massenflusses f\u00fcr das neuartige Verfahren der CO2-Hydrierung"},"content":{"rendered":"\n[et_pb_section fb_built=”1″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_heading title=”Applying mass flow for novel process of CO2 hydrogenation” _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_heading][et_pb_text _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]

CO2 hydrogenation\u00a0<\/span><\/b>\u00a0<\/span><\/h2>\n

As hydrogen continues to increase in popularity as a fuel, demand for methanol and ethanol are also expected to increase. These chemicals are often made using a process called CO<\/span>2 <\/sub>hydrogenation which reduces CO2<\/sub><\/span>\u00a0to CO and H2<\/sub><\/span>O via a thermodynamically intensive process called the reverse water gas shift reaction (RWGSR).\u00a0<\/span>\u00a0<\/span><\/p>\n

CO<\/span>2<\/span>\u00a0hydrogenation<\/span><\/a>\u00a0using renewable hydrogen, such as sourced from green, gold, orange, or white hydrogen, is a clean process that allows for CO2<\/sub><\/span>\u00a0to be made into a series of different end-products, including methanol, formic acid, and ethanol while simultaneously reducing CO2<\/sub><\/span>\u00a0emissions.<\/span> By using CO<\/span>2<\/sub>\u00a0hydrogenation and green hydrogen to make hydrogen carriers such as methanol, the hydrogen industry can more easily store hydrogen gas by converting it to chemicals that are easier to transport.<\/span>\u00a0<\/span><\/p>\n

Although this process normally requires high temperatures and pressures, researchers at the Tata Institute of Fundamental Research (TIFR) located in Mumbai have\u00a0<\/span>developed a method<\/span><\/a>\u00a0for CO2<\/sub><\/span>\u00a0hydrogenation at room temperature by plasmonic excitation of H2<\/sub><\/span>\u00a0and CO2<\/sub><\/span>\u00a0via plasmonic catalysts.\u00a0<\/span>\u00a0<\/span><\/p>\n

In their process, the researchers at TIFR\u00a0<\/span>convert CO2<\/sub><\/span>\u00a0to CO at selectivity greater than 95% by applying the phenomenon of localized surface plasmonic resonance (LSPR) that explains how electrons at the surface of metals oscillate as their frequency matches that of incident electromagnetic radiation. In other words, these researchers use special gold-nickel (Au-Ni) nanoparticle catalysts to reduce CO2<\/sub><\/span>\u00a0to CO in the presence of solar light and H2<\/sub><\/span>\u00a0within a light reactor.<\/span> As a result, much less energy is required to overcome the activation barrier, thus reducing the overall energy required to make different end products via CO2<\/sub>\u00a0hydrogenation.\u00a0<\/span><\/p>\n

Designing the new process<\/span><\/b>\u00a0<\/span><\/h2>\n

In the experimental design, CO2<\/sub><\/span>\u00a0and H2<\/sub><\/span>\u00a0are mixed into a continuous-flow reactor such that the Au-Ni catalyst bed is kept at about 1 mm in order to allow for sufficient light penetration. The intensity of the light and temperature are adjusted in order to optimize the efficiency under different operating conditions. However, the flow of CO2<\/sub><\/span>\u00a0and H2<\/sub><\/span>\u00a0are kept constant at 10 mL\/min and 1 mL\/min in order to create stable gas conditions in the reactor.<\/span>\u00a0<\/span><\/p>\n

Using mass flow for stable research flow conditions in CO2 hydrogenation\u00a0<\/span><\/b>\u00a0<\/span><\/h2>\n

Because the experimental CO2<\/sub>\u00a0hydrogenation processes requires stable flow conditions for CO2<\/sub><\/span>\u00a0and H2<\/sub><\/span>\u00a0in order to test other operating conditions, highly repeatable, precise, and accurate low flow full-scale control is required.\u00a0<\/span>Alicat\u00a0<\/span>MC-Series<\/span><\/a>\u00a0and\u00a0<\/span>CODA KC-Series<\/span><\/a>\u00a0mass flow controllers provide near-instantaneous, reliable, repeatable low flow control at full-scales down to just 0.5 SCCM or 40 g\/hr.\u00a0<\/span>\u00a0<\/span><\/p>\n

Communication for automated control using either a PLC or computer via analog, serial, or industrial protocols allow for highly personalized flow data measurement and control. Features such as batching and totalizing allow for the tracking of flow data.\u00a0<\/span>\u00a0<\/span><\/p>\n

Alicat MC-Series:<\/span>\u00a0<\/span><\/p>\n