Methanol synthesis through sorption enhanced carbon dioxide hydrogenation
نویسندگان
چکیده
Synthesis of methanol from carbon dioxide is affected by thermodynamic limitations and excessive formation water that might have a detrimental impact on production rate catalytic activity. To overcome these effects, sorption enhanced (SE) hydrogenation to with selective in-situ adsorption investigated both experimentally via process simulation. A significant improvement in the performance due equilibrium shift, achieved as result removal, reported. Depending conditions, during SE phase, outlet concentration ca. 150–290% steady state values recorded after adsorbent saturation. For monoxide this factor 220–510%. The effect parameters such reactor pressure, temperature, overall gas flowrate catalyst-to-adsorbent ratio thoroughly addressed. Reactor pressure demonstrated affect phase greatest extent. Particularly, increasing above 40 bar enhances at cost decreasing production, thus improving selectivity. Although temperature 250 °C favors formation, it results suppressed considerable shortening duration. Because RWGS reaction fast kinetics, variations hourly space velocity amount loaded more than monoxide. describing kinetics involved reactions are adjusted based acquired experimental data.
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ژورنال
عنوان ژورنال: Chemical Engineering Journal
سال: 2021
ISSN: ['1873-3212', '1385-8947']
DOI: https://doi.org/10.1016/j.cej.2021.129290