عرض بسيط للتسجيلة

المؤلفSaad, Mohammed A.
المؤلفAl-Marri, Mohammed J.
المؤلفYaumi, Ali L.
المؤلفHussein, Ibnelwaleed A.
المؤلفShawabkeh, Reyad
تاريخ الإتاحة2021-09-05T05:40:19Z
تاريخ النشر2016
اسم المنشورJournal of Chemistry
المصدرScopus
الرقم المعياري الدولي للكتاب20909063
معرّف المصادر الموحدhttp://dx.doi.org/10.1155/2016/6021798
معرّف المصادر الموحدhttp://hdl.handle.net/10576/22727
الملخصA new CO2 adsorbent is produced from waste oil fly ash (OFA). Ammonium hydroxide solution is used to convert OFA to activated carbon. Then, the product is used for the adsorption of CO2 from a nitrogen/carbon dioxide (N2/CO2) gas mixture. The OFA samples are characterized by several techniques. Chemical treatment of OFA considerably changed its surface morphology. In particular, its surface area, as determined by BET measurements, increased from 59 to 318 m2 /g. The amine-functionalized ash had a monolayer adsorption capacity of 74.51 mg/g and was obtained at relative pressure, 0.05 < 𝑝/𝑝𝑠 < 0.35. A kinetics study showed that the CO2 adsorption capacity of OFA increased with increasing CO2 flow rates and concentrations and decreasing the relative humidity. Unlike physical adsorption, the chemisorption process resulted in increased adsorption capacity with increasing temperatures over the range 0–40∘ C. We also found that the adsorption process was endothermic (80–173 kJ/mol). The isothermdata for the adsorption process were fitted using different models. The saturation capacity determined from the Sips model, which corresponds to the sum of the saturation capacities of all of the adsorbed layers, was 540.3 mg/g of ash.
اللغةen
الناشرHindawi Publishing Corporation
الموضوعFly Ash
CO2
العنوانAn Experimental and Kinetic Study of the Sorption of Carbon Dioxide onto Amine-Treated Oil Fly Ash
النوعArticle
رقم المجلد2016
dc.accessType Open Access


الملفات في هذه التسجيلة

Thumbnail

هذه التسجيلة تظهر في المجموعات التالية

عرض بسيط للتسجيلة