An evaluation of calcined hydrocalumite as carbon dioxide adsorbent using thermogravimetric analysis
Source abstract
Abstract
Abstract Hydrocalumite is a lamellar double hydroxide widely used in catalysis and metal adsorption. Its use as CO2 adsorbent is an innovation in this segment. In this research, tests showed high adsorption capacity, thermal stability and good performance in adsorption/desorption cycles, qualifying hydrocalumite as a promising CO2 adsorbent. It was synthetized with molar ratio Ca/Al = 2 by coprecipitation and calcined at 600, 700 and 800 °C. The adsorption was processed in a thermogravimetric analysis device at 500 °C and desorption was carried out at 600 °C. The occurrence of chemisorption and physisorption was identified from the heat flow in the adsorption steps. Hydrocalumite calcined at 600 °C achieved high levels of CO2 adsorption (4.21 mmol g−1) and reversible fraction between 94 and 99%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Dioxide Capture Technologies · Chemical Looping and Thermochemical Processes · Adsorption and Cooling Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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