Esterification of acetic acid in the presence of sulfated clinoptilolite: a model study of upgrading of pyrolysis bio-oil
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the esterification reaction of acetic acid with n-propyl alcohol was studied on a sulfated zeolite catalyst to improve the bio-oil obtained by pyrolysis of lignocellulosic biomass. Temperature (323-353 K), sulfuric acid concentration (1-3 M) and time (1-4 hours) were selected as parameters in the preparation of sulfuric acid-modified clinoptilolite samples. Sulfated zeolites samples are characterized by XRF, XRD, and N(2)adsorption/desorption techniques. It was observed that the zeolites treated with sulfuric acid retained their crystal structures, decreased surface areas, and changed SiO2/Al(2)O(3)ratios. Samples modified with sulfuric acid are more effective in the esterification reaction than unmodified zeolite. The increase in sulfuric acid concentration and temperature in the modification process increased the conversion of acetic acid in the esterification reaction. The highest acetic acid conversion (63.8%) was obtained with zeolite treated at 323 K temperature, 3 M sulfuric acid for 1 hour.
Açıklama
Anahtar Kelimeler
Bio-oil, esterification, sulfated, clinoptilolite, upgrading
Kaynak
Energy Sources Part A-Recovery Utilization And Environmental Effects
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
