Fuel additive synthesis by acetylation of glycerol using activated carbon/UiO-66 composite materials
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, zirconium-based metal organic frameworks, UiO-66, were synthesized by solvothermal method and activated carbon was incorporated to increase thermal, chemical stability and the catalytic activity of UiO-66. the characterization of synthesized hybrid materials was performed by TGA, SEM-EDS, FT-IR, XRD, N-2 adsorption/desorption methods and potentiometric titration analysis. the effect of synthesis parameters was investigated to obtain the most catalytically active catalyst. the synthesis parameters were ratio of activated carbon to zirconium ratio and the amount of linker in the synthesis of UiO-66/activated carbon composite materials. the most catalytically active catalyst was found as UiO-66/AC(0.1+10%) according to the triacetin selectivity in the acetylation of glycerol with acetic acid. the selectivities were calculated for UiO-66/AC(0.1+10%) as 67.3% MAG, 31.3% % DAG and 1.4% TAG at 90 degrees C, with 3:1 acetic acid/glycerol molar ratio for 3 h. Afterwards, parametric study was performed using most catalytically active catalyst at different catalyst loading, temperature and acetic acid/glycerol molar ratios. 17.9% of TAG selectivity was achieved when molar ratio of acetic acid to glycerol was increased to 6.
Açıklama
Anahtar Kelimeler
Glycerol, Triacetin, UiO-66, Catalysis, Activated carbon
Kaynak
Fuel
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
281
